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Publications (355)
In the present study, green synthesis of nickel-doped hydroxyapatite using Clitoria ternatea flower extract, and activity testing as photocatalyst, antibacterial agent and drug delivery agent were performed. Synthesis was conducted by hydrothermal treatment of co-precipitated precursors previously mediated with the extract. As drug delivery agent,...
In this work, silica gel particles (SG) were prepared via the Sol–Gel method, utilizing tetraethyl orthosilicate (TEOS) as the precursor and hydrochloric acid as an acid catalyst for hydrolysis process. Fourier Transform Infrared Spectroscopy (FTIR) has confirmed the formation of the silica gel matrix, while X-ray diffraction (XRD) revealed its amo...
This study presents a novel silica gel-encapsulated chromium (III) complex, denoted as SG-[Cr(tta)3] has been
synthesized via a sol–gel method. The complex [Cr(tta)3], where H-tta represents the 2-thenoynltrifluoroacetone
ligand, has been successfully incorporated into the silica gel matrix. The physicochemical characterization, in
cluding FTIR, Ra...
The shortage of clean water has been increasing which necessitates the sustainable wastewater treatment. Traditional adsorbents like activated carbon, derived from fossil fuels, have many environmental and economic challenges. Biowaste-derived carbon materials have been the best alternative due to their sustainability and economic viability. This r...
This study investigates the thermal conversion of waste coral and its utilization as a heterogeneous catalyst for biodiesel production from soybean oil. In this work, waste coral is calcined at varied temperatures of 800, 900, and 1000°C, and the effect of the calcination temperature on the physicochemical character of the solid is evaluated throug...
In this study, we have evaluated the biological activity of gadolinium-incorporated zinc oxide (Gd-ZnO) nanostructures prepared via a hydrothermal synthesis route. Various characterization techniques, such as powder X-ray diffraction (XRD), Fourier-transform infrared (FTIR), Ultraviolet-Visible (UV-Vis), Dynamic light scattering (DLS), and scanning...
The green synthesis of metallic nanoparticles (NPs) has garnered significant interest owing to their eco-friendly and sustainable approach, which utilizes natural resources as both reducing and stabilizing factors. This method yields NPs with desirable properties suitable for various applications in diverse areas. Among different NPs, metal oxide N...
Magnetic nanoparticles have evolved over the last few decades as nanocarriers in drug delivery systems for hydrophobic drugs. Here, novel gellan gum magnetic graphene oxide (GG-GO-Fe3O4) and pectin magnetic graphene oxide (PEC-GO-Fe3O4) nanocomposites were prepared to carry cinnamaldehyde to control Aedes aegypti larvae. Fourier transform infrared...
2-methyl-4-chlorophenoxyacetic acid (MCPA) was successfully intercalated into zinc layered hydroxide (ZLH) by anion exchange technique followed by hydrothermal treatment, resulting in the formation of nanoherbicide, zinc-layered hydroxide-2-methyl-4-chlorophenoxyacetic acid (ZMCPA). Fourier-transform infrared spectroscopy (FTIR) and Powder X-ray di...
The two most prominent areas of nanotech-nology and nanoscience are environmental remediation and biomedical applications, which has a strong need to develop cleaner and more eco-friendly methods for preparing functional nanomaterials. This involves incorporating non-toxic chemicals and reagents for converting metal cations into metal or metal oxid...
The up-to-date growth of nanoscience and nanotechnology has focused on various applications of metal oxide nanoparticles (NPs) in different fields, such as life sciences, pharmaceutical industries, and research laboratories. Due to their excellent properties and use in diverse areas (e.g., nanomedicine and biomedical sciences), metal oxide NPs, par...
High demand for energy consumption forced the exploration of renewable energy resources, and in this context, biodiesel has received intensive attention. The process of biodiesel production itself needs to be optimized in order to make it an eco-friendly and high-performance energy resource. Within this scheme, development of low-cost and reusable...
The symmetric nano morphologies, asymmetric electronic structures, and as well as the heterojunctions of the developed photocatalytic systems perform a vital role in promoting light absorption, separation of electron and hole pairs and charge carrier transport to the surface when exposed to near-infrared (NIR) light. In this present work, we synthe...
Highly-effective photocatalyst of NiO/g-C3N4 with was successfully synthesized by using phyto-mediated-synthesized nickel nanoparticles. The preparation was initiated by synthesizing nickel nanoparticles by using Tinosphora cordifolia stem extract under ultrasound-assisted method followed by the dispersing onto g-C3N4 structure. The study focused o...
Several polymer-based nanocomposites have been studied and used for tissue engineering applications in recent years. These biodegradable nanocomposites have proven advantageous for bone tissue cultivation and production. Materials such as polymers, metals, and ceramics are commonly used to fabricate biomaterials. Although some polymeric materials a...
The intercalation of 2-methyl-4-chlorophenoxyacetic acid (MCPA) herbicide into the interlayer matrix of calcium–aluminium layered double hydroxide (CaAl LDH) host has been successfully done via the co-precipitation method to form CaAl-MCPA nanocomposite, proposing an eco-friendly alternative with an adjusted delivery system for herbicide applicatio...
Because of their prospective applications and exceptional features, graphene quantum dots (GQDs) have gotten a lot of recognition as a new class of fluorescent carbon materials. One of the carbon family’s newest superstars is the GQD. Due to its exceptional optoelectrical qualities, it has sparked a lot of curiosity since its debut in 2008. Two of...
The present work investigated hydrothermal synthesis of titanium/hydroxyapatite (Ti/HA) nanocomposite at varied Ti content. The synthesis was performed by coprecipitation method using CaO, ammonium dihydrogen phosphate and titanium oxide chloride precursor with the additional cetyl trimethyl ammonium chloride as templating agent, followed by hydrot...
Silver (I) oxide (Ag2O) nanoparticles (NPs) were synthesized by a simple solution reduction method. The sample was characterized by X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR). Scanning electron microscopy (SEM), UV–visible diffuse reflectance spectroscopy (DRS), and dynamic light scattering (DLS) techniques. The charact...
This article reports on molecular modeling using density functional theory (DFT) performed on L-cysteinium methanesulfonate (L-CMS). Calculations were performed on the B3LYP/LanL2DZ level with 6-31 G(d,p) basis set using the Gaussian 09 program package. The optimized structure, HOMO-LUMO, energy gap, electronic properties, MEP, dipole moment, first...
The objective of this research was to prepare low-cost catalyst for green diesel conversion from vegetable oil. The catalyst of nickel-dispersed biochar (Ni/BC) was prepared by direct pyrolysis of nickel precursor with palm leaves waste under N2 stream at 500 °C. The obtained catalyst was examined by using x-ray diffraction, scanning electron micro...
Ruku-ruku (Ocimum sanctum, L.) and selasih ungu (Ocimum canum, Sims.) were local types of basils (Ocimum basilicum, L.) found in Indonesia. They exhibited a good fruit fly attractant activitiy as they contained a specific chemical known as methyl eugenol. Fruit fly often pointed out to responsible for damage of some agricultural products such as me...
The purpose of this work is to evaluate and asses the use of salacca skin waste as adsorbent for dye removal. The work was evaluating the physicochemical character of salacca skin waste (SS) and its biochar (SBC) form for the adsorption of methylene blue. The characterizations were conducted using SEM-EDX, gas sorption analyzer, Boehm titration, an...
A facile synthesis method of gold nanoparticles (AuNPs) utilizing Lantana camara flower extract (LFE) using visible light illumination towards the bio-reduction system has been conducted. The systematic characterizations of AuNPs were employed using transmission electron microscopy, X-ray powder diffraction, scanning electron microscopy, and X-ray...
The combination of electro-enhanced and hydroponic phytoremediation hereinafter referred to as electro-enhanced phytoremediation (EP) system, has been employed for rapid removal of trace metal concentration of lead (II) from contaminated water using Kentucky bluegrass (Poa pratensis L.) as accumulator plant. In this study, for rapid assessment the...
This research investigated preparation of geopolymer as adsorbent for dye-containing and peat water treatment. The green synthesis of geopolymer utilized tin mine tailings waste as source and Salacca leaves ash as activator. For the detail of study, effect of Salacca leaves ash amount to the physicochemical characteristics of the geopolymer was stu...
In this work, Mn3O4 nanoparticles (NPs) were synthesized by hydrothermal method using the precursor manganese acetate and polyvinyl alcohol (PVA) as a as a structure directing agent. The synthesized Mn3O4 NPs were systematically characterized in terms of their morphology, surfaces, as well as their crystalline and photocatalytic activity. Powder X-...
Currently, there is growing concern about minimizing the environmental impacts caused by the generation of waste on water, soil, air pollution, and contamination of the environment in general. Magnesium oxide (MgO) nanoballs (NBs) were synthesized by the hydrothermal method followed by a calcination process. The average size of particles dispersed...
Photocatalysis has been recognized as a feasible method in water and wastewater treatment. Compared to other methods such as adsorption and chemical oxidation, the use of photocatalyst in the advanced oxidation processes gives benefits such as a longer lifetime of the catalyst and less consumable chemicals. Currently, explorations into low-cost, ef...
This work aimed to synthesize a reusable catalyst of KF/Mg-Al layered double hydroxide (KF/LDH) for a microwave-assisted biodiesel conversion from rice bran oil (RBO). The LDH was synthesized by co-precipitation method of Mg and Al precursors with additional surfactant of cetyl trimethyl ammonium followed by hydrothermal method, for furthermore, an...
The conference is aimed to disseminate the results of research from universities, research centers, and government boards and bring synergy between research and industry. In the spirit of green chemistry, chemical and industrial process for a sustainable and brighter future, the conference will provide the opportunity for more environmental and eff...
In this study, the manganese dioxide (MnO2) nanosheets were successfully embedded onto boron and sulfur co-doped g-C3N4 (CNBS) nanotubes to construct the flower-like core-shell CNBS@MnO2 heterojunction with Z-scheme structure for the enhanced photodegradation of diclofenac (DCF) in the presence of peroxymonosulfate (PMS) and 460-nm visible light. T...
In this work, SnO2 NPs were green synthesized using Canna indica (C. indica) plant leaves extract and the synthesized powder sample was calcined at different temperatures from 400 to 700 oC. The synthesized sample was characterized using XRD, UV-vis, and FTIR spectra. Furthermore, the photocatalytic activity towards Rhodamine B (RhB) dye under visi...
Monitoring and determination of mercury species in the environment is a challenging issue. This work presents an electrochemical sensor based on voltammetric methods for selective recognition of Hg species using carbon paste electrode modified Hg2+-imprinted polymers. The ion-imprinted polymers were prepared by thermal bulk polymerization with Hg(N...
Zirconium porous clay heterostructures (Zr-PCH) were synthesized using intercalated clay minerals by zirconium species with different contents of zirconium. The presence of zirconium and silica species was confirmed by X-ray diffraction, X-ray fluorescence, and magic-angle spinning nuclear magnetic resonance. The insertion of zirconium improved the...
The commonly used herbicide in agriculture, namely 2,4-dichlorophenoxypropanoic acid (2,4-DP), is an anionic herbicide used to interleave into the interlayer of calcium-aluminum layered double hydroxide (Ca-Al LDH) employing co-precipitation method to form a new nanohybrid labeled as CAL-2,4DP. The LDH compound serves as a host in supporting the he...
Copper Oxide (CuO) nanoparticles were synthesized through a green approach using the papaya and banana peel reducing as well as a stabilizing agent as copper (II) nitrate trihydrate salt as a precursor. The sample was characterized by X-ray diffraction (XRD) and Fourier-transform infrared spectroscopy (FT-IR), Scanning electron microscope (SEM), Tr...
Undoubtedly, industrial activities have produced a large amount of waste, which has significantly contributed to the global environmental problem. The palm oil sector, which is considered a water-intensive industry, is one of the industrial sectors that have become a major source of severe water pollution concerns. Normally, 50% of the freshwater u...
In this work, we report the hydrothermal synthesis, characterization, and photocatalytic activity of SnO2 nanoparticles (NPs) towards methylene blue (MB) dye. The synthesized sample has characterized using X-ray diffraction (XRD), Fourier transform infrared (FTIR), ultraviolet-visible (UV-Vis), scanning electron microscopy (SEM), transmission elect...
Synthesis of magnetite nanoparticles using jengkol peel extract has been carried out and applied to methylene blue (MB) adsorbent. Characterization of the synthesized material using FTIR, XRD, PSA, and VSM. In this study, the effect of pH adsorption of MB onto magnetite synthesized using JPE (JMNPs), adsorption kinetics, and isotherms were studied...
The purpose of this study is to convert bauxite mining tailing waste into magnetic nanocomposite as catalyst in catalytic wet peroxidation of tetracycline. The preparation of material was performed via hydrothermal method of immobilized iron oxide precursor of Fe²⁺ and Fe³⁺ in alkaline condition, followed by calcination. The obtained nanocomposite...
ZrO2-based catalysts are remarkable catalyst with unique advantageous in transesterification and esterification for biodiesel production. Various modifications have been conducted refer to a specified surface properties consist of surface acidity/basicity, specific surface area and porosity, hydrophobicity, and catalysts stability. Summary on the b...
In this present study, Nickel oxide (NiO) nanoparticles (NPs) have been synthesized using the hydrothermal method and characterized using powder X-ray Diffraction (XRD), UV-vis and Fourier Transform Infra Red (FTIR) spectroscopies, Scanning Electron Microscopy (SEM), and Energy-Dispersive X-ray (EDX) methods. The result of the characterization indi...
Preparation of green synthesized silver nanoparticle (AgNPs)-doped hydroxyapatite (Ag/HA) utilizing Curcuma longa leaf extract and land snail (Achatina fulica) shell waste was performed. Physicochemical characteristics and antibacterial activity of Ag/HA composite as a function of Ag content was studied. Instrumental analysis such as XRD, SEM-EDX,...
A flower-like hierarchical nanostructure of Sn3O4/montmorillonite is first reported in this work. The nanomaterial was prepared by a one-pot hydrothermal synthesis method using tin chloride as the precursor, and the physicochemical characteristics of the material were examined by instrumental analyses. The prepared nanostructure was evaluated as a...
The hazardous toxicity of dye materials, even in low concentrations, harms ecological systems. It releases a large number of contaminants into the water, resulting as waste water. Dyes prevent the process of photosynthesis by obstructing light passage, lowers the oxygen levels dissolved in the water. Also, a good number of the dyes and heavy metals...
Zn-Al Layered Double Hydroxides (Zn-Al LDHs) and its calcined form were successfully prepared and utilized for the removal of methyl violet (MV) and treatment of peat water by photocatalytic oxidation. The research was aimed to evaluate the effect of calcination to Zn-Al LDHs for the effect on the physicochemical character and the capability as a p...
Water pollution has become one of the most serious environmental issues recently, especially in relation to chemical-containing wastewater. Uncontrolled industrial waste, including large amounts of dye-containing wastewater from textile industries, needs intensive attention. In this work, the synthesis of Fe3O4@SiO2 nanocomposite biogenic silica fr...
This paper reports on the first case of the recyclable catalysts of ZnO/SiO2 prepared from salacca leaf ash as a source of silica for biodiesel production. The catalysts were prepared using a hydrothermal synthesis method, and the catalyst was utilized for biodiesel conversion from rice bran oil. Physicochemical properties of the catalysts were stu...
Advanced oxidation processes (AOPs) utilizing heterogeneous catalysts have attracted great attention in the last decade. The use of solid catalysts, including metal and metal oxide nanoparticle support materials, exhibited better performance compared with the use of homogeneous catalysts, which is mainly related to their stability in hostile enviro...
The present study was carried out to prepare and characterize calcined Mg/Al layer double hydroxides (LDHs) used in the adsorption of methyl orange in an aqueous solution as an anionic dye in a batch system. Synthesis of LDHs using coprecipitation method with Mg/Al ratio of 3:1 and obtained material was treated by hydrothermal treatment for 4 hours...
This study concerns papain enzyme assisted synthesis of virgin coconut oil (VCO) as a candidate in-house reference material. The study was conducted to obtain optimization of the VCO preparation with green processes as the standardized product which high stability and homogeneity. The method is expected to produce the candidate of in-house referenc...
2021): Star fruit extract-mediated green synthesis of metal oxide nanoparticles, Inorganic and Nano-Metal Chemistry To link to this article: https://doi. ABSTRACT The present study deals with the green synthesis, physical characterization, and antibacterial activity testing of various metal oxide nanoparticles (NPs) formed by making use of the star...
Questions
Questions (2)
In the comparison on photocatalytic degradation simulation, some researchers use Langmuir-Hinshelwood model. What is L-H constant(KLH) means?? for the faster degradation, KLH is smaller. I predict the smaller constant reflects the faster desorption rate which plays role in the degradation mechanism. Is it true??
Excuse me, I am interested in this article. I have also tried to perform the same experiment but I got menthone and isomenthone as products and there was no menthol obtained. Could you tell me what specific condition, for example, the reaction was conducted under nitrogen environment etc? Was the mixture stirred before irradiated??