Teresa J Bandosz

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Verified

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• Doctor of Philosophy
• Distinguished Professor at City College of New York

While both pore sizes and oxygen vacancies benefit desulfurization on ZnO, their specific roles and the combined effect on the efficiency of this process are still unclear. To address this, ZnO‐based adsorbents with tunable mesopore sizes and concentrations of oxygen vacancies are synthesized. These two features are directly regulated through varyi...

The extensive use of pesticides to ensure global food production presents significant threats to both human health and the environment. In this study, the photochemical, redox, and acid‐base properties of Zr‐metal‐organic polyhedra (Zr‐MOP) and polyoxometalates (POM) are utilized to fabricate functional hybrid salts, denoted as [Zr‐MOP][POM], desig...

Graphene oxide (GO)—the oxidized form of graphene—is actively studied in various fields, such as energy, electronic devices, separation of water, materials engineering, and medical technologies, owing to its fascinating physicochemical properties. One major drawback of GO is its instability, which leads to the difficulties in product management. A...

Vetiver root is widely used to produce essential oils in the aromatherapy industry. After the extraction of oil, the roots are disposed of as waste. The central objective of this research was to explore the conversion of this waste into a resource using a circular economy framework. To generate biochar, vetiver roots were pyrolyzed at different tem...

To boost efficient energy transitions, alternatives to expensive and unsustainable noble metal-based electrocatalysts for the oxygen reduction reaction (ORR) are needed. Having this in mind, carbon black - Black Pearls 2000 (BP) was enriched in active nitrogen-containing centers, including single-atom Fe-N sites surrounded by Fe nanoclusters, throu...

Sulfur‐tuned advanced carbons (STACs) with high mass loadings of sulfur are synthesized using an environmentally benign and scalable steam‐assisted sulfur insertion (SASI) method. While steam provides the pressure necessary to promote deep and rapid sulfur insertion into a carbon porous structure, a strong affinity between melted sulfur and carbon...

We have studied the formation of core-shell hybrid metal-organic framework@activated carbon spheres (MOF@AC) adsorbents, by means of a layer-by-layer (LBL) growth method of MOFs on shaped AC materials. The hybrid...

Highly porous carbon black and micro/mesoporous activated carbon were impregnated with cobalt and nickel nitrates, followed by heat treatment at 850 °C in nitrogen. Detailed information about chemistry and porosity was obtained using XPS, XRD, TEM/EDX, and nitrogen adsorption. The samples were used as ORR catalysts. Marked differences in the perfor...

Given that H2S detrimentally affects various aspects of human life including an environment, health, industrial infrastructure and catalytic processes, its removal from various gas streams is of paramount importance. As the most promising alternative, room temperature H2S catalytic oxidation on carbon-based materials attracted extensive attentions...

Highly porous carbon black, Black Pearl 2000, was modified with urea and thiourea to introduce only N- or N- and S-containing functional groups, affecting its activity in the oxygen reduction reaction. The samples were exposed to heating at 450 and 850 °C to vary surface features. Their chemistry and porosity were evaluated using various physical a...

Gas-phase desulfurization on carbon materials is an important process attracting the attention of scientists and engineers. When involving physical adsorption, reactive adsorption and catalytic oxidation combined, the process is considered as energy-efficient. Recent developments in materials science directed the attention of researchers to inorgan...

Carbon dots (CDs) and N-carbon dots (N-CDs) loaded with Ru-complex ([email protected], [email protected], respectively) were investigated as media imposing biochemical changes induced by UV illumination of ovarian cancer, A2780, and osteosarcoma, CAL72, cells. Synchrotron radiation-based Fourier Transform Infrared Spectroscopy was performed, and th...

Commercial activated carbon (BAX), carbon black (BP2000), and zirconium-based metal-organic framework (UiO–66) were tested as adsorbents of perfluorooctanesulfonic acid (PFOS). They had high surface areas (1500–2000 m²/g) and markedly differed in pore size distributions. While UiO–66 was mainly microporous with pore sizes determined by its crystall...

Two amine-modified copper-based Metal Organic Frameworks (MOF (CuBTC)) of different surface chemical and textural features were synthesized and used as adsorbents of acidic toxic gases (NO2 and H2S) in both moist (71% relative humidity (R.H.)) and dry conditions. The initial and exhausted samples were characterized by nitrogen adsorption, powder X-...

The catalytic activity for CO2 electrochemical conversion into CO on N-doped carbons has been previously suggested to be enhanced by introducing a sulfur co-dopant to the carbon matrix. In this study, nitrogen and sulfur-codoped porous carbons were synthesized by a high temperature treatment of commercial wood-based carbon impregnated with thiourea...

Oxygen reduction reaction, ORR, is an important process affecting the performance of fuel cells. To be effective, efficient catalysts are needed. Recently, metal-free carbon materials have been extensively investigated for this purpose. The interest of scientists evolved from concentrating on nonporous graphene or CNT to focusing on porous carbons....

Four as-received carbon blacks from a Black Pearl family with surface areas between 30 and 1600 m² g⁻¹ were chosen to be tested as oxygen reduction catalysts in an alkaline environment. As main descriptors of their performance an onset potential, numbers of electron transfer and kinetic current density have been chosen. Even though the onset potent...

Perfluoroalkyl and polyfluoroalkyl substances (PFAS) are a class of fluorinated aliphatic compounds considered as emerging persistent pollutants. Owing to their adverse effects on human health and environment, efficient methods of their removal from various complex matrices need to be developed. This review focuses on recent results addressing the...

The trends in the value and shift of a water melting point in nanoporous carbons of distinctive surface chemistry were analyzed. The carbons were obtained from sulfur containing polymers and they were additionally exposed to H2S at high temperature to introduce specific thiophenic/bisulfides of hydrophobic character. The carbons surface chemistry a...

The effects of light exposure on the gas phase desulfurization of a reactive adsorbent consisting of ZnFe2O4 dispersed onto activated carbon (ZnFe2O4/AC) were investigated in both moist and dry conditions. The porosity and surface chemistry of the materials before and after the exposure to H2S were evaluated in details. The experimental results dem...

In search for new alternative sources of energy carbon materials placed themselves as a valuable alternative to replace efficient noble metal- or transition metal-based catalysts. Even though the search for this kind of efficient catalysts started from the discovery and wonders of graphene, soon it has been established that to bring a catalytic act...

Nanocomposites (TiO-NTbs/rGO) consisting of titanate nanosheets (H2Ti3O7) scrolled to nanotubes (TiO-NTbs) and deposited on reduced graphite oxide (rGO) were synthesized through the combination of low-power/low-frequency (37 kHz) ultrasound and hydrothermal treatment procedures. The materials were characterized by X-ray diffraction, high-resolution...

Recently, owing to the discovery of graphene, porous carbons experienced a revitalization in their explorations. However, nowadays, the focus is more on search for suitable energy advancing catalysts sensing, energy storage or thermal/light absorbing features than on separations. In many of these processes, adsorption, although not emphasized suffi...

A binary system composed of carbon dots (CDs) and N-doped CDs (N-CDs) embedded in an organic matrix was used for the analysis of cholesterol by MALDI (matrix-assisted laser desorption and ionization time-of-flight) mass spectrometry, as a model for detection of small, biologically relevant molecules. The results showed that both CDs are sensitive t...

Electrochemical oxygen reduction reaction (ORR) is an important energy-related process requiring alternative catalysts to expensive platinum-based ones. Although recently some advancement in carbon catalysts have been reported, there is still a lack of understanding which surface features might enhance their efficiency for ORR. Through a detailed s...

Two boron-doped carbon dots (BCDs), CABA and TBBA, were prepared from various boron and carbon containing precursors using a bottom-up approach. The BCDs’ chemistry and morphology were evaluated by IR, XPS and TEM analyses. The surface of BCDs was rich in surface functional groups including CB, B–O, CO and CO bonds. Their optical properties were an...

New composites have been synthesized containing nanographite (nGr) particles as platforms for the deposition of UiO-66 crystals. The samples were analyzed by X-ray diffraction, thermogravimetry, N2 adsorption and scanning electron microscopy. The addition of nGr markedly increased the porosity determined by N2 adsorption (0.5 nm ultramicropores wer...

Heterostructure engineering of electrocatalysts provides a fascinating platform to reasonably manipulate the physicochemical properties of nanomaterials and further improve their catalytic efficiency for water electrolysis. However, it still remains a huge challenge to construct well-designed core-shell heterostructured catalysts and identify the k...

The commercially available titanium dioxide P25 is a well-known benchmark nanosized semiconductor photocatalyst [1,2]. Additionally, utilization of 2-D fillers, like graphite oxide (GO), towards the synthesis of nanocomposites is assumed as an efficient strategy to elevate the desired features and catalytic performances, predominately due to the sy...

Oxygen Reduction Reaction (ORR) catalysts were synthesized from biosolids by simple pyrolysis at 950 °C. Their surface features were modified by changing pyrolysis conditions (ramp and holding time). The obtained materials, after an extensive surface characterization, were tested as ORR catalysts in an alkaline medium. They exhibited a high catalyt...

For proper and fair comparison of the performance of Oxygen reduction reaction (ORR) electrocatalysts an un-biased method to determine an onset potential value is needed. Here we report an easy mathematical approach based on the second derivative of linear sweep voltammetry curves, referred to as a second order discrete differentiation method (SODD...

Porous carbons were obtained from rice husk using two different chemical activation methods and they were investigated as supercapacitors. Their properties were studied using X-ray photoelectron spectroscopy, thermal analysis, potentiometric titration, and nitrogen adsorption isotherm. The specific capacitance measured in both H2SO4 and KOH electro...

The herein presented low‐power high‐frequency (500 kHz) ultrasound‐assisted precipitation synthesis (LPHF‐US) leads to a unique multiphase nano‐structured titanium dioxide, grafted with oxygen‐containing organic functionalities. The material exhibits a high porosity (surface area 326 m2 g−1 and total pores volume 0.484 cm3 g−1) and heterogeneous su...

Polymer-derived porous carbon was used as a support of iron and nickel species with an objective to obtain an efficient oxygen reduction reaction (OER) catalyst. The surface features were extensively characterized using X-ray diffraction, X-ray photoelectron spectroscopy and high-resolution transmission electron microscopy. On FeNi-modified carbon...

Wood-, coal-, and coconut-based activated carbons and ordered mesoporous silica (SBA-15) were selected as supports to synthesize bifunctional ZnFe2O4 adsorbents for an H2S removal from air under ambient conditions. The effects of supports on the active phase nanoparticle features and on the efficiency of the H2S removal were investigated. The colle...

New composites consisting of 2% cellulose nanocrystals (NC) of various surface chemistries (i.e., carboxylic acids, sulfonic acids, and amines) incorporated into UiO‐66 are synthesized. Nanocellulose and the composites are characterized by X‐ray diffraction, Fourier‐transform infrared spectroscopy, N2 and CO2 adsorption, and thermogravimetric analy...

A series of bifunctional ZnO-MgO/activated carbon adsorbents (denoted as MgxZn1-x/AC) were synthesized. The molar ratio of Mg/(Mg + Zn) was optimized maintaining a 20 wt. % total content of oxides. The materials were characterized using adsorption of nitrogen, TEM-EDS, XPS, XRD, FT-IR, TG and CO2-TPD. On them an H2S breakthrough capacity was measur...

A new H2S removal reactive adsorbent was prepared from a biosolid by the addition of pluronic surfactant F 127 prior to a simple pyrolysis at 950 oC at two heating regimes. The materials were extensively characterized and tested as H2S removal media from air. The results show over 250 % increase in the H2S removal efficiency compared to the adsorbe...

Activated carbons (ACs) were synthesized by a simple pyrolysis of polystyrene sulfonic acid-co-maleic acid sodium salt (PSC) at 800, 850 and 900 °C followed by water washing. The samples were characterized by potentiometric titration, transmission electron microscopy, nitrogen adsorption isotherms, and X-ray photoelectron spectroscopy. A change in...

The p/n-junction in heteroatoms-doped carbon might be engineered to adjust the population of the charge carriers to perform the oxygen evolution reaction (OER) with holes in a p-type region and hydrogen evolution reaction (HER) with electrons in a n-type region. The carbons (AC) with introduced Fe, Ni and Co species of hierarchical porous structure...

Porous zinc peroxide/graphitic carbon nitride nanocomposites were synthesized and characterized by XRD, N2 adsorption, SEM, DRUV-Vis spectroscopy, and thermal analysis. The affinity of the synthesized samples to reactively adsorb and decompose vapors of chemical warfare agent surrogate of mustard gas, 2-chloroethyl ethyl sulfide (CEES) was evaluate...

Commercial TiO2 (P25) alone or in the presence of graphite oxide (GO) was exposed to ultrasound treatment (US) with the objective to modify the surface of the nanoparticles through introducing defects and chemical heterogeneity, and to build the composite with GO of synergistic features. The obtained materials were extensively characterized using X...

A series of ZnFe2O4/carbon adsorbents with various ZnFe2O4 loadings were synthesized and used for removing H2S from moist air at a room temperature. The materials were characterized using adsorption of nitrogen, SEM-EDS, ICP-OES, XPS, XRD, FT-IR, TGA, Raman spectroscopy and potentiometric titration. The experimental results showed that the adsorben...

This paper addresses the challenges of explaining the behavior of porous carbons in cutting-edge applications related to energy storage, catalysis, photocatalysis, and advanced separation based on reactive adsorption. It is a summary of the outcomes of the extensive discussion which took place during the workshop “Beyond Adsorption-II: new perspect...

Nanoporous carbons are important materials applied in many fields of modern technology from separation, catalysis to energy-related applications such as those in energy storage, lithium batteries, or fuel cell electrodes. Even though they are relatively old materials, extensive efforts continue on their modifications, improvement, and design. The l...

Composite of two MOFs, copper-based Cu-BTC (HKUST-1) and zirconium-based Zr-BDC (UiO-66), with oxidized graphitic carbon nitride nanospheres were synthesized. For comparison, pure MOFs were also obtained. The surface features were analyzed using x-ray diffraction (XRD), sorption of nitrogen, thermal analysis, and scanning electron microscopy (SEM)....

The composites of UiO-66 with nanographite or oxidized graphitic carbon nitride nanospheres (∼10 wt %) were synthesized and used as CEES decontamination media from a vapor phase. The materials were characterized using XRD, nitrogen adsorption, SEM, potentiometric titration, FTIR, and thermal analysis. The results showed a marked improvement of the...

Two series of microporous carbon catalysts were prepared from ordered mesoporous carbon obtained from sucrose and KIT-6 as a carbon source and template, respectively. To modify surface features, the mother sample carbon was oxidized and then exposed to ammonia at 600, 800 and 950 °C. The latter treatment resulted in an introduction of nitrogen spec...

With an objective to fully utilize a high catalytic capability of sludge-based adsorbents towards hydrogen sulfide oxidation, the composites consisting of a sewage sludge derived phase and coconut-carbon were synthesized with 10 and 30% of the latter phase. They were obtained by simple pyrolysis at 600, 800 and 950 °C. After an extensive surface ch...

Barium titanate nanospheres (BTO-NPs) were deposited on carbon textile fibers, as a homogeneous coating (8 wt%; thickness 80–240 nm). The composite material/textile was thermally stable, porous, and water repellent. Its adsorption capacity against mustard gas surrogate vapors increased 17%, compared to those on separate carbon textiles and BTO-NPs,...

Hybrids containing approximately equal amounts of P25 TiO2 and S-doped porous carbons were prepared using a water-based slurry mixing method. The materials were extensively characterized by adsorption of nitrogen, potentiometric titration, thermal analysis in air and in helium, XRD, XPS and SEM. The collected results showed the significant blockage...

Nanoporous carbons have many advantages over other adsorbents. This includes their high surface area, pore volume and also conductivity of a carbon matrix. The latter is very important for electrocatalysis. In recent years carbon materials have gained a lot of attention as metal-free catalysts. Their catalytic centers have been linked mainly to nit...

Ordered mesoporous/microporous carbon was synthesized from sucrose. The carbon was oxidized and modified with urea at 600, 800 and 950 °C. The obtained carbons differed in the pore size distributions in the meso- and micropore ranges. The carbons, after an extensive surface characterization, were used as ORR catalysts in KOH electrolyte. Kinetic cu...

Metal-free nanoporous carbons, either as received or sulfur doped, have been studied as photocatalysts for the degradation of phenol under solar light irradiation. The introduction of sulfur significantly enhanced both phenol adsorption and photodegradation. The texture and surface chemistry of the catalysts tested were evaluated using adsorption o...

The modern advances of nanotechnology have a potential to lead to the development of innovative protective uniforms for industry personnel, fire workers, or even warfighters. A promising strategy towards this direction is the synthesis of multifunctional composite fabrics by the deposition of nanostructured active phases. Since the First World War,...

Abstract: An innovative trend for the development of modern protection uniforms for real-life application like for industry personnel, fire workers, or even soldiers, is the utilization of mutli-layered nano-engineered fabrics. The ultimate goal, especially for the protection against toxic vapors, is to synthesize multifunctional “smart” textiles,...

Four porous activated carbon textiles have been evaluated as protective media against 2-chloroethyl ethyl sulfide (CEES) vapors, a surrogate of the chemical warfare agent Mustard gas. In contrast to other approaches reported in literature which have been carried out in solutions, our experiments were conducted from the vapor phase in ambient air an...

Carbon Dots (CDs) were obtained using a hydrothermal method and used for the detection of fingerprints through fluorescent imaging. Synthesized CDs exhibited a brightness emission at 495 nm, which was related to their structural and chemical properties. The results of detailed surface characterizations by XPS, ss-NMR and fluorescence spectroscopies...

Hydrophobic soot was prepared by a simple impregnation of soot particles with cobalt, nickel or iron salts, followed by heat treatment at ∼800 °C. X-ray and thermal analyses revealed that metal (Co and Ni) or oxide (magnetite) nanoparticles were deposited on the surface of soot particles. The evaluation of the soot microstructure and porosity by Ra...

Highly porous (specific surface area, SBET, 1400 m²/g) and rich in surface groups activated carbons (ACs) were obtained from cotton stalks using either a direct or indirect activation. They were characterized by adsorption of nitrogen, thermal analysis combined with mass spectrometry, potentiometric titration, and X-ray photoelectron spectroscopy (...

With an objective to increase an electrochemical performance, simple and effective modifications of activated carbon fiber textiles (ACT) were carried out prior to their testing as supercapacitors. The modifications included a high-temperature treatment of the textile impregnated with N- and S-containing species (i.e. dicyandiamide, urea and thiour...

Electrical response of nanoporous carbon upon exposure to VOCs was tested. For this purpose, commercial wood-based chemically activated carbon was chosen owing to its high surface area, heterogeneity of its pore sizes and rich surface chemistry. When carbon chips were exposed to various concentrations of toluene, chloroform, and methanol vapors vis...

The effect of 1-(3-phenoxypropyl) pyridazin-1-ium bromide, a new pyridazinium derivative, on steel corrosion in a HCl (1M) solution was analyzed using electrochemical impedance and XPS spectroscopy. Experimental results indicated that the inhibition efficiency increased with an increase in an inhibitor concentration. Electrochemical impedance spect...

The deposition of Mn3O4 nanoparticles on modified graphite oxide sheets resulted in a catalyst of a high activity for the removal of an endocrine disruptor, bisphenol-A, from water. The composite formation led to a synergistic effect that dramatically enhanced the reactivity of the inorganic phase toward bisphenol-A decomposition.

Porous carbons containing either B and N heteroatom (∼10 at.% each) or B‐ and N‐free were synthesized and used as ORR metal‐free catalysts. The number of electron transfer was close to 4 (3.94) regardless the presence or not of heteroatom‐based catalytic centers, and the onset potential reached 0.827 V (on Pt/C 0.888 V). The carbons were extensivel...

Modified graphite oxide (ΝGO) was used as a support of a manganese oxide of hausmannite type (Mn3O4) nanocatalyst and applied for the degradation of an endocrine disruptor, bisphenol-A (BPA). The prepared nanocomposite/catalyst (NGO-Mn3O4), as well as pure modified graphite oxide and manganese oxide, were characterized by X-ray diffraction, Scannin...

The polyoxometalate hybrid (POM-h) nanorods were synthesized and tested as reactive adsorbents of the vapors of mustard gas surrogates, and in particular against 2-chloroethyl ethyl sulfide (CEES) and ethylethyl sulfide (EES). They were found to promote the photo-oxidation of the surrogates’ vapors to sulfoxide under ambient conditions and in the a...

Abstract Barium titanate nanoparticles (BTO-NPs) in the size range 8–12 nm, prepared by gel collection, are found to be a photoreactive detoxifier for Chemical Warfare Agent vapors, specifically, the sulfur mustard surrogate (2-chloroethyl ethyl sulfide). The relatively monodisperse, uniformly spherical BTO-NPs, initially dispersed in alcohol solve...

One innovative approach for the development of the modern soldiers’ uniform is the appliance of multi layers for protection against a wide range of various toxic compounds, particularly chemical warfare agents (CWA). Carbon based textiles with properly developed porosity and surface chemistry heterogeneity are very promising materials to face that...

Nanocomposites and hybrid materials of Ag-BTC MOF with S- and N-CQDs were synthesized and evaluated for their antibacterial activity against representative Gram-positive (B. subtilis) and Gram-negative (E. coli) bacterial strains, using the qualitative disk diffusion approach and quantitative minimum inhibitory concentration test. The composites an...

Barium titanate nanoparticles (BTO-NPs) in the size range 8–12 nm, prepared by gel collection, are found to be a photoreactive detoxifier for Chemical Warfare Agent vapors, specifically, the sulfur mustard surrogate (2-chloroethyl ethyl sulfide). The relatively monodisperse, uniformly spherical BTO-NPs, initially dispersed in alcohol solvents, form...

Even though, owing to the complexity of nanoporous carbons' structure and chemistry, the origin of their photoactivity is not yet fully understood, the recent works addressed here clearly show the ability of these materials to absorb light and convert the photogenerated charge carriers into chemical reactions. In many aspects, nanoporous carbons ar...

S-doped nanoporous carbon, and commercial activated carbons, as received or modified by an incorporation of sulfur and nitrogen functional groups to their surface, were tested as low concentration formaldehyde (1 ppmv) adsorbents. The breakthrough capacities, in dry and wet conditions, were measured. The surface properties of the samples were evalu...

Thiourea‐modified wood‐based activated carbons were evaluated as catalysts for CO2 electrochemical reduction reaction (CO2ERR). The materials obtained at 950oC showed a long stability. The results indicated that thiophenic sulfur provides catalytic activity for CO formation. However, it was not as active for CH4 formation as was pyridinic‐N. Tafel...

Graphene oxide, a monolayer structure with a high contribution of sp2 hybridized carbon atoms and various oxygen containing surface functional groups, has attracted the attention of a worldwide research community in the last decades. It is related to its various potential applications linked to the unique combination of properties, such as hardness...

Heat treatment and/or chemical functionalization ACF-based porous carbon textiles with urea/thiourea resulted in highly heterogeneous materials with a diverse porosity and mechanical strength. The materials were photosensitive in visible light and a generated photocurrent was linked to the effects of the specific surface chemistry and the existence...

Formaldehyde, HCHO, is one of the most common toxic pollutants found in indoor air. Its most common sources are pressed woods and particle boards. National Toxicology Program of Department of Health and Human Services classifies formaldehyde as human carcinogen and its exposure limit is 0.08 ppm for 30 min. So far, besides room venting, no other me...

A facile one-step route has been developed to electrodeposite P–Co nanoparticles on a nickel foam in deep eutectic solvents. The as-prepared catalyst exhibits excellent performance towards both hydrogen evolution reaction and oxygen evolution reaction. Only 62 mV and 320 mV overpotentials were required to reach a current density of 10 mA cm⁻² for h...