Jing Bai

Jing Bai
Shanghai Jiao Tong University | SJTU · School of Environmental Science and Engineering

PhD

About

98
Publications
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4,038
Citations

Publications

Publications (98)
Article
Urine is a nitrogenous waste biomass but can be used as an appealing alternative substrate for H2 recovery. However, urine electrolysis suffers from sluggish kinetics and requires alkaline condition. Herein, we report a novel system to decompose urine to H2 and N2 under neutral conditions mediated by Cl• using oxygen-vacancy-rich Co3O4 nanowire (Ov...
Article
Organic amines are regarded as high toxic, refractory chemicals due to the great damage on human body, and ecosystem. The treatment of organic amine wastewater involves the removal of total nitrogen and toxic organics simultaneously, which is one of the biggest difficulties in wastewater treatment. In this study, hazardous organic amine wastewater...
Article
Reverse osmosis concentrate (ROC) from wastewater reclamation has posed significant disposal challenges due to its highly concentrated NH3-N, chloride ion and bio-refractory organics, and developing technologies for their removal are essential. Herein, we developed an efficient electrochemical system to remove total nitrogen and dissolved organic c...
Article
The efficiency of hole extraction and transfer at electrode/electrolyte interface is one of the most important bottlenecks of BiVO4 photoanodes for photoelectrochemical (PEC) water splitting. Here, a huge improvement of surface charge transfer efficiency (ηsurface) of BiVO4 photoanode was achieved by surface modification of oxygen vacancy-abundant...
Article
Full-text available
Urine is the main source of nitrogen pollution, while urea is a hydrogen-enriched carrier that has been ignored. Decomposition of urea to H2 and N2 is of great significance. Unfortunately, direct urea oxidation suffers from sluggish kinetics, and needs strong alkaline condition. Herein, we developed a self-driving nano photoelectrocatalytic (PEC) s...
Article
Photoanode is the key issue for photoelectrocatalytic (PEC) water splitting and organics degradation. However, it always faces several restrictions including severe photocorrosion, low charge separation and transfer efficiencies, poor visible light harvesting, and sluggish interfacial reaction kinetics, which often required a variety of modificatio...
Article
The holes transfer efficiency is a key issue in the process of photoelectrocatalytic water splitting. Here, we found that the oxygen concentration and distribution in hematite evidently affected the bulk and surface holes transfer, and thus influenced the performance of photoelectrocatalytic water splitting. Two macro-changes on oxygen were observe...
Article
In this study, an efficient WO3−x nanoplates photoanode was generated based on bidentate hydrogen bonds and in subsequent thermal reduction of ethylene glycol (EG). An appropriate number of controllable oxygen vacancies (Ov) was generated in-situ on the surface of the WO3 nanoplates without deep defects by bidentate hydrogen bonds. Density function...
Article
Urine, which is an important waste biomass resource, is the main source of nitrogen in sewage and contains large quantities of emerging contaminants (ECs). In this study, we propose a new method to efficiently remove urine, simultaneously eliminate ECs, and control the generation of toxic chlorate during urine treatment using a photoelectrocatalyti...
Article
Generally, the loading of oxygen evolution catalyst (OEC) must be carefully controlled to an extremely thin level or the photo-generated holes will mainly charge the catalyst rather than oxidizing water. To overcome the extreme sensitivity of charge transport to catalyst thickness, we proposed the iron valence state regulating on hematite to negati...
Article
The direct conversion of SO2 to SO3 is rather difficult for flue gas desulfurization due to its inert dynamic with high reaction activation energy, and the absorption by wet limestone-gypsum also need the forced oxidation of O2 to oxidize sulfite to sulfate which is necessary of additional aeration. Here, we propose a method to remove SO2 with high...
Article
The efficient removal of ammonia is a difficult issue in wastewater treatment because ammonia is easily converted to nitrate instead of N2. The oxidation of ammonia by chlorine radical (Cl•) is recognized as an effective method. However, the massive generation of toxic byproducts chlorate and nitrate pose great risk for its practical application du...
Article
Complex surface dynamics is the key to limit the photoelectrochemical performance of hematite, while its core content is the hole trapping and release by surface traps. Deep traps are accompanied by extremely fast capture rates and extremely slow release rates, which severely suppress the hole transport process. Herein, we proposed a unique method...
Article
Efficient separation and transport of charge is a critical issue in solar-driven water oxidation. Herein, we developed a novel, facile, controllable method based on zero-valent iron (ZVI) reduction to in-situ and synchronous generate oxygen vacancies (Ov) and FeOx oxygen evolution co-catalysts (OECs) on BiVO4 for ultrafast electron transfer and exc...
Article
Hydrogen generation by solar-driven water splitting is considered as a promising strategy to address energy crisis and environmental emission issues. Bismuth vanadate (BiVO4) is a highly promising photoanode material for photoelectrocatalytic (PEC) water splitting, but its severe bulk and surface charge recombination, sluggish oxygen evolution reac...
Article
Titanium dioxide (TiO2) is a promising photoanode material for photoelectrochemical (PEC) water splitting, but the poor light harvesting and sluggish carriers kinetics are the main bottleneck problems. Here, the open bird-nest structured ZnO/TiO2 (BN ZnO/TiO2) and sealed core-shell structured ZnO/TiO2 (CS ZnO/TiO2) were first fabricated by a facile...
Article
The treatment of refractory wastewater and energy utilization are challenging environmental issues. Carbonate as the most common anion abounds in the aquatic environment. Here, we proposed a novel method to degrade carbonate-containing wastewater and simultaneous electricity generation via the combined oxidation of CO3•- and O2•- radicals. The CO3•...
Article
The use of a photocatalytic fuel cell (PFC) in wastewater treatment is an intensively researched topic because the device integrates organic pollutant degradation and chemical energy recovery. Herein, we proposed a strategy to enhance PFC performance by increasing the concentrations of hydroxyl radical (HO•) and superoxide radical (O2⁻•) produced f...
Article
Removal of NO3- is a challenging problem in wastewater treatment. Electrocatalysis shows a great potential to remove NO3- but selectively converting NO3- to N2 is facing a low efficiency. Here, a novel 3D Pd-Cu(OH)2/CF cathode based electrocatalytic (EC) system was proposed that can rapidly and selectively convert NO3- to NH4⁺, and further convert...
Article
TiO2 is a promising photoanode material for photoelectrochemical (PEC) water splitting, but its severe bulk recombination of photogenerated carriers, sluggish oxygen evolution reaction (OER) kinetics and poor visible light response are the main bottleneck problems. Here, the carbon quantum dots (CQDs) modified anatase/rutile TiO2 photoanode (CQDs/A...
Article
Hematite is composed of iron and oxygen elements, and the iron-oxygen spatial distribution would affect directly its photoelectrochemical (PEC) performance. However, less work has focused on the effect of iron-oxygen composition on the characteristic of charge transport and interfacial reaction. Here we investigated the charge transfer and interfac...
Article
In this paper, we propose an efficient simultaneous refractory organics degradation and electricity generation method for carbonate-containing wastewater based on carbonate radical reactions initiated by a BiVO4-Au/PVC (PVC: photovoltaic cell) system. In the system, nanoporous BiVO4 film and Au modified PVC were used as photoanode and photocathode,...
Article
N-containing organic wastewater is harmful to human health and ecosystem while its degradation remains a huge challenge for decarburization and denitrification simultaneously. In this paper, we proposed a new photoelectrochemical method of chlorine oxide radicals production to oxidize mixture wastewater of phenol and N-ammonia into N2 and CO2. The...
Article
As a new type of photocatalytic fuel cell (PFC), radical chain-reaction PFC based on the catalysis of Fe³⁺/Fe²⁺ cycle is able to significantly improve organics degradation and electricity generation, owing to the expanded radical reaction from electrodes surface to the whole solution. However, the yield of reactive oxygen radical is obviously restr...
Article
Urea is a major source of nitrogen pollution in domestic sewage and its denitrification is difficult since it is very likely to be converted into ammonia or nitrate instead of expected N2. Herein, we propose an exhaustive denitrification method for urea via the oxidation of amine/ammonia-N with chlorine oxide radical, which induced from a bi-functi...
Article
Organic amines, including amine groups and carbon groups, are highly toxic chemicals with regard to both human health and ecosystems. However, the treatment of organic amines in wastewater remains a challenge using existing methods because of poisonousness of amines to microorganisms and simultaneous poor denitrification. In this work, we used a ph...
Article
Reverse osmosis (RO) concentrate becomes a new knotty problem in water treatment for its high concentrated salts and complex pollutants. In this study, we presented a photoelectrocatalytic (PEC) chloride-radical (Cl) system to efficiently remove its pollutants including total nitrogen, natural organic matter and emerging pollutants simultaneously i...
Article
Carbonate widely exist in wastewater and natural water. Here we proposed an efficient refractory organics degradation method for carbonate-containing wastewater via generating carbonate radical based on a photoelectrocatalytic TNA-MCF system. In the system, TiO2 nanotube arrays (TNA) and modified carbon felt (MCF) were used as photoanode and cathod...
Article
The conversion of excess ammonia-N into harmless N2 is a primary challenge for wastewater treatment. We present here a method to generate ClO• directionally for quick and efficient decomposition of NH4+-N to N2. The ClO• was produced and enhanced by a bifacial anode: a front WO3 photoanode and a rear Sb-SnO2 anode, in which HO• generated on WO3 rea...
Article
Urine is a major biomass resource, and its excessive discharge would lead to severe aquatic nitrogen pollution and even eutrophication. In this study, we designed an innovative denitrifying fuel cell (DFC) under illumination to purify urine and convert its chemical energy into electricity. The central ideas include the following: 1) on the anode, c...
Article
Sulfate is a primary component of industrial wastewater and the existing wastewater treatment methods cannot effectively recover the chemical energy of pollutants. Sulfate radicals (SO 4⁻ •), as a strong oxidant, have obvious advantages in the degradation of refractory pollutants compared with hydroxyl radicals (HO•). In this study, a novel photoca...
Article
Urine is a major nitrogen and COD source and threatens the aqueous environment, leading to eutrophication and energy consumption. However, the conventional technologies encounter the bottleneck due to the high load of nitrogen and organics in urine. Here we propose an innovative idea for complete transformation of urea-nitrogen to N2 and simultaneo...
Article
In the paper, a high-performance BiVO4 photoanode deposited with serial hole transfer layers was fabricated for photoelectrochemical (PEC) water splitting in order to overcome the shortages of pure BiVO4 electrode in poor charge transport properties and undesirable surface water oxidation kinetics. Hole transfer layer of Fe2O3 was first deposited o...
Article
Toxic and refractory organic pollutants are continually discharged into the water environment, which has become the crisis for the human living and sustainable development. However, organic pollutants also contain large amounts of chemical energy. In this paper, we studied the effect and mechanism of organic pollutants oxidation and chemical energy...
Article
Low efficiency separation of photogenerated electron-hole pairs in semiconductors are still the main bottlenecks to high photoelectrochemical (PEC) water splitting. In this work, a dramatic enhancement of photocurrent was performed for a BiVO4/TiO2 nanoporous groves (NGs) heterojunction photoanode via in-situ band regulation of TiO2 using Ta. A con...
Article
The treatment of nitrogen-containing organic wastewater is a difficult problem because organic and nitrogen contents are hard to remove simultaneously for the common sewage disposal technologies. Here we propose a new method to efficiently remove total organic carbon and total nitrogen and generate electricity simultaneously for this wastewater. Th...
Article
In this paper, the toxic H2S was transformed efficiently into valuable S and H2O2 and its chemical reaction energy was converted into electric energy through a self-driven photoelectrocatalytic(PEC) system, which consisted of a microporous gas diffusion electrode(GDE) and a self-bias photoanode. In the cathode region, high yield of H2O2 up to 0.8 m...
Article
Organic wastewater is a potential fuel because organic pollutants are rich in chemical energy. In view of the effluent treatment and simultaneous energy recovery, we proposed a highly efficient photocatalytic fuel cell (PFC) based on a novel, extremely stable and long-lived epitaxial WO3 nanorod/TiO2 nanothorn array (TiO2/WO3/W) photoanode. Owing t...
Article
To address the poor charge transport performance and severe surface combination of Hematite (Fe2O3), surface modification of electron blocking layer with a more negative conduction band than Fe2O3 have gradually received attention, which could prevent excess electrons escaping from Fe2O3 to the electrode surface. However, the electron blocking proc...
Article
Full-text available
A BiVO4 photoanode with exposed (040) facets was prepared to enhance its photoelectrochemical performance. The exposure of the (040) crystal planes of the BiVO4 film was induced by adding NaCl to the precursor solution. The as-prepared BiVO4 photoanode exhibits higher solar-light absorption and charge-separation efficiency compared to those of an a...
Article
A high-efficient photo-induced wastewater fuel cell (WFC) for neutral wastewater treatment was proposed in this paper based on radicals catalytic reaction of Fe3+/Fe2+- EDTA complexes in the system which has a lower redox potential than Fe3+/Fe2+and can accelerate easily the conversion of slow catalytic step from Fe (III) to Fe (II). The results in...
Article
A novel method for the exhaustive conversion of inorganic nitrogen to nitrogen gas was proposed in this paper. The key properties of the system design included an exhaustive photoelectrochemical cycle reaction in the presence of Cl⁻, in which Cl• generated from oxidation of Cl⁻ by photoholes selectively converted NH4⁺ to nitrogen gas and some NO3⁻...
Article
Full-text available
A unique, controllable and facile method based on peroxovanadate reduction and conversion to prepare BiVO4 nanoporous film was presented. In this method, a slow and controllable reduction of peroxovanadate by ethonal was used, which was the crucial step to ensure the uniform deposition of V2O5 •xH2O on F-doped tin oxide substrate, and subsquently t...
Article
Full-text available
An environment-friendly method of efficiently degrading refractory organics using SO4−• generated directly from a WO3 photoelectrode and a catalytic reaction of sulfate was proposed, in which the cycling process of SO42− → SO4−• → SO42− was achieved in the treatment of organic pollutants without any other activator and without the continuous additi...
Article
A novel, facile self-driven photoelectrocatalytic (PEC) system was established for highly selective and efficient recovery of H2S and simultaneous electricity production. The key ideas were the self-bias function between a WO3 photoanode and a Si/PVC photocathode due to their mismatched Fermi levels and the special cyclic redox reaction mechanism o...
Article
The stability and cost of solar-driven water splitting system are still the main bottlenecks for its large-scale implementation. Here, an ingeniously designed low-cost photoelectrochemical tandem cell possessing three performance-superior components, i.e., a front novel photoanode of WO3 nanoplates epitaxially coated with [001]-oriented TiO2 nanopr...
Article
A highly selective method for transforming ammonia nitrogen to N2 was proposed, based on a novel solar-driven photoelectrocatalytic-chlorine radical reactions (PEC-chlorine) system. The PEC-chlorine system was facilitated by a visible light response WO3 nanoplate array (NPA) electrode in an ammonia solution containing chloride ions (Cl(-)). Under i...
Article
A dramatic enhancement of organics degradation and electricity generation has been achieved in a wastewater fuel cell (WFC) system via strengthening superoxide radical with radical chain reaction by using a novel 3D anthraquinone/polypyrrole modified graphite felt (AQS/PPy-GF) cathode. The AQS/PPy-GF was synthesized by one-pot electrochemical polym...
Article
In this work, a facile and in situ method is proposed to prepare a high-performance photoanode with an ultrathin Fe2TiO5 layer on hematite by the reaction of tetrabutyl titanate with electro-reduced Fe film, which avoids using FeOOH film as substrate. The preparation involves 30 s of direct electro-reduction (ER) of Fe film and 3 min of a sol metho...
Article
Efficient conversion of wastewater into clean energy was achieved by applying a radical chain reaction strategy in a solar responsive photocatalytic fuel cell (PFC) system. The system was constructed with two photoelectrodes where ferrous ions were added to enhance the radical reactions for organic pollutants degradation from the surface of electro...
Article
We report the development of a novel visible response BiVO4/TiO2(N2) nanotubes photoanode for photoelectrocatalytic applications. The nitrogen-treated TiO2 nanotube shows a high carrier concentration rate, thus resulting in a high efficient charge transportation and low electron–hole recombination in the TiO2–BiVO4. Therefore, the BiVO4/TiO2(N2) NT...
Article
Here, we developed a novel, facile, controllable and scalable method based on peroxotungstate reduction reaction to prepare vertically aligned WO3 nanoplate array (NPA) films with preferentially exposed highly reactive (002) facets used in efficient photoelectrocatalytic (PEC) applications. In this method, a slow and controllable reduction of perox...
Article
A high-performance bismuth vanadate (BiVO4) photoanode cocatalyzed with an ultrathin α-Fe2O3 layer was fabricated for photoelectrochemical water splitting and organic pollutant degradation. The ultrathin α-Fe2O3 layer, which can faciliate the holes transfer to the surface efficiently and thus avoid high charge recombination, was deposited on the su...
Article
An enhanced result in organic pollutants degradation and simultaneous electricity production has been achieved by establishing a novel Fenton-photocatalytic fuel cell (Fenton-PFC) system in which TiO2 nanotube arrays (TNA) was designed as a photoanode and ferrous ions were added. The proposed Fenton-PFC system can expand the radical reaction for or...
Article
In this paper, a novel dual heterojunction Photocatalytic Fuel Cell (PFC) system based on BiVO4/TiO2 nanotubes/FTO photoanode and ZnO/CuO nanowires/FTO photocathode has been designed. Compared with the electrodes in PFCs reported in earlier literatures, the proposed heterojunction not only enhances the visible light absorption but also offers a hig...
Article
Full-text available
The inhibition effect of tert-butyl alcohol (TBA), identified as the •OH radical inhibitor, on the TiO2 nano assays (TNA) photoelectrocatalytic oxidation of different organics such as glucose and phthalate was reported. The adsorption performance of these organics on the TNA photoelectrode was investigated by using the instantaneous photocurrent va...
Article
Full-text available
A significant promotion effect of methanoic acid (MA) was proposed in the photoelectrocatalytic (PEC) degradation of fulvic acid (FA) and the degradation mechanism was also discussed. The PEC degradation property of FA and MA was investigated by an assembled thin-layer PEC reactor in which photoanode is TiO 2 nanotube arrays (TNAs) material. The re...
Article
In this study, a novel three dimensional (3D) ZnO/Cu2O nanowire (NW) photocathode material with highly efficient photoelectrocatalytic performance was prepared on a copper substrate using simple, cost-effective wet chemical oxidation and hydrothermal growth methods. FE-SEM, TEM, XRD and XPS were used to investigate the 3D ZnO/Cu2O NWs, revealing th...
Article
A novel preparation method of nanostructured hematite (α-Fe2O3) films was reported for efficient photoelectrocatalytic (PEC) water splitting and organic pollutant degradation. The method includes two processes, namely the electrodeposition process of Fe film in alkalescent aqueous electrolyte with ferrisulfas and ammonia and the in-situ thermal oxi...
Article
Aerated visible-light responsive photocatalytic fuel cell (PFC) consisted of a nanopore WO3/W photoanode and Pt modified commercial silicon photovoltaic cell (Pt/PVC) photocathode was designed. This system could be used for organic compounds degradation with producing sustainable electricity in neutral solution. Aeration could significantly increas...
Article
A simple, rapid and environmental friendly online chemical oxygen demand (COD) analytical method based on TiO2 nanotube sensor in conjunction with the flow injection technique was proposed to determine the COD of aqueous samples, especially for refractory organics, low-concentration wastewater, and surface water. The new method can overcome the dra...
Article
Full-text available
A sensor of a WO3 nanopores electrode combined with a thin layer reactor was proposed to develop a Chemical Oxygen Demand (COD) determination method and solve the problem that the COD values are inaccurately determined by the standard method. The visible spectrum, e.g., 420 nm, could be used as light source in the sensor we developed, which represe...
Article
Nanoporous WO3 photoanode modified with cobalt–phosphate (Co–Pi) catalyst was synthesized in this study. The nanoporous WO3 was prepared by anodization of W foil following a photo-assisted electrodeposition of Co–Pi catalyst. The presence of Co–Pi catalyst obviously facilitated the charge transfer and reduced the recombination of photoexcited elect...
Article
The solubility of 2,2′,6,6′-tetrabromo-4,4′-isopropylidene phenol (TBBPA) in pure water, calcium chloride (CaCl2) + water and different surfactants (hexadecyltrimethylammonium bromide (CTAB), 1-hexadecylpyridinium chloride (CPC), sodium dodecylbenzenesulfonate (SDBS) and dodecyl sodium sulfate (SDS)) + water has been determined at (293.2, 298.2, 30...
Article
Direct discharging great quantities of organics into water-body not only causes serious environmental pollution but also wastes energy sources. In this paper, a solar responsive dual photoelectrode photocatalytic fuel cell (PFC(2)) based on TiO2/Ti photoanode and Cu2O/Cu photocathode was designed for hazardous organics treatment with simultaneous e...