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Gadore V, Mishra SR, Ahmaruzzaman M. Enhancing photodegradation of thiamethoxam insecticide using SnS 2/NCL as a photocatalyst: Mechanistic insights and environmental implications. CHEMOSPHERE 2024; 359:142343. [PMID: 38754491 DOI: 10.1016/j.chemosphere.2024.142343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 05/13/2024] [Accepted: 05/14/2024] [Indexed: 05/18/2024]
Abstract
The current research highlights the fabrication of a novel SnS2/CO32-@Ni-Co LDH (SnS2/NCL) by precipitating Ni-Co LDH over hydrothermally synthesized SnS2 nanoparticles for the enhanced degradation of thiamethoxam (THM) insecticide through the advanced oxidation process. The effect of several reaction parameters was optimized, and a maximum degradation of 98.1 ± 1.2 % with a rate constant of 0.0541 min-1 of 10 ppm THM was reached at a catalyst loading of 0.16 gL-1 using 0.3 mM of H2O2 within 70 min of visible light irradiation. The effect of metal cations, inorganic anions, dissolved organic matter, organic compounds and water samples on the photodegradation performance of SnS2/NCL nanocomposite was also examined to evaluate the prepared photocatalyst's suitability for use in actual wastewater conditions. The metal cations blocked the active sites of the photocatalyst and reduced the degradation efficiency except for Fe2+ ions, since it is a Fenton reagent and increased the production of hydroxyl radicals. Inorganic anions are the scavengers of hydroxyl radicals and hinder photocatalytic activity. Meanwhile, lake water containing varying degrees of co-existing ions shows the lowest degradation efficiency among other water samples. The SnS2/NCL nanocomposite could be reused for five cycles while maintaining a photocatalytic efficiency of 83.6 ± 0.3 % in the fifth run. The prepared SnS2/NCL nanocomposite also showed excellent photodegradation of several other emerging organic pollutants with an efficiency of over 80 % under optimum conditions. Incorporating Ni-Co LDH with SnS2 helped to delocalize photoinduced charges, leading to increased photocatalytic activity and a slower electron-hole recombination rate. The present research highlights the photocatalytic activity of SnS2/NCL photocatalysts for the photocatalytic degradation of emerging contaminants from wastewater.
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Affiliation(s)
- Vishal Gadore
- Department of Chemistry, National Institute of Technology Silchar, 788010, Assam, India
| | - Soumya Ranjan Mishra
- Department of Chemistry, National Institute of Technology Silchar, 788010, Assam, India
| | - Md Ahmaruzzaman
- Department of Chemistry, National Institute of Technology Silchar, 788010, Assam, India.
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2
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Gadore V, Singh AK, Mishra SR, Ahmaruzzaman M. RSM approach for process optimization of the photodegradation of congo red by a novel NiCo 2S 4/chitosan photocatalyst. Sci Rep 2024; 14:1118. [PMID: 38212420 PMCID: PMC10784554 DOI: 10.1038/s41598-024-51618-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 01/08/2024] [Indexed: 01/13/2024] Open
Abstract
The current study reported a facile co-precipitation technique for synthesizing novel NiCo2S4/chitosan nanocomposite. The photocatalytic activity of the prepared nanocomposite was evaluated using congo red (CR) dye as a target pollutant. The central composite design was employed to examine the impact of different reaction conditions on CR dye degradation. This study selected the pH, photocatalyst loading, initial CR concentration and reaction time as reaction parameters, while the degradation efficiency (%) was selected as the response. A desirability factor of 1 suggested the adequacy of the model. Maximum degradation of 93.46% of 35 ppm dye solution was observed after 60 min of visible light irradiation. The response to surface methodology (RSM) is a helpful technique to predict the optimum reaction conditions of the photodegradation of CR dye. Moreover, NiCo2S4/Ch displayed high recyclability and reusability up to four consecutive cycles. The present study suggests that the prepared NiCo2S4/chitosan nanocomposite could prove to be a viable photocatalyst for the treatment of dye-contaminated wastewater.
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Affiliation(s)
- Vishal Gadore
- Department of Chemistry, National Institute of Technology Silchar, Silchar, Assam, 788010, India
| | - Ashish Kumar Singh
- Department of Chemistry, National Institute of Technology Silchar, Silchar, Assam, 788010, India
| | - Soumya Ranjan Mishra
- Department of Chemistry, National Institute of Technology Silchar, Silchar, Assam, 788010, India
| | - Md Ahmaruzzaman
- Department of Chemistry, National Institute of Technology Silchar, Silchar, Assam, 788010, India.
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3
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Gadore V, Mishra SR, Ahmaruzzaman M. Bandgap engineering approach for synthesising photoactive novel Ag/HAp/SnS 2 for removing toxic anti-fungal pharmaceutical from aqueous environment. JOURNAL OF HAZARDOUS MATERIALS 2024; 461:132458. [PMID: 37717444 DOI: 10.1016/j.jhazmat.2023.132458] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 08/13/2023] [Accepted: 08/30/2023] [Indexed: 09/19/2023]
Abstract
The present work shed light on synthesising a novel ternary Z-scheme Ag/HAp/SnS2 (AHS) nano photocatalyst to degrade metronidazole (MTZ) in wastewater through H2O2-assisted AOP under natural sunlight. HAp extracted from the fish scales of rohu fish through alkaline treatment was decorated with Ag nanoparticles using ascorbic acid as a bio-reductant. Tin disulphide (SnS2) was anchored over Ag/HAp to prevent agglomeration and enhance photocatalytic activity by delaying the electron-hole recombination rate. After 45 min of irradiation, a degradation efficiency of 98.85 ± 1.86% for 15 ppm MTZ could be achieved. The performance of the prepared photocatalyst in real wastewater was investigated by introducing several metal cations and anions in the photodegradation process. The degradation products were identified by HRLCMS analysis, and the breakdown mechanism of MTZ was proposed. The present study enlightens the importance of SnS2-based photocatalysts for organic pollutant degradation under natural sunlight through an advanced oxidation process. The characterization results showed that the enhanced photodegradation efficiency of AHS is attributed to the formation of an all-solid-state Z-scheme heterojunction with Ag nanoparticles acting as charge transfer medium and as electron accumulators helping in delaying charge recombination.
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Affiliation(s)
- Vishal Gadore
- Department of Chemistry, National Institute of Technology, Silchar 788010, Assam, India
| | - Soumya Ranjan Mishra
- Department of Chemistry, National Institute of Technology, Silchar 788010, Assam, India
| | - Md Ahmaruzzaman
- Department of Chemistry, National Institute of Technology, Silchar 788010, Assam, India.
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4
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Govindasamy P, Kandasamy B, Thangavelu P, Barathi S, Thandavarayan M, Shkir M, Lee J. Biowaste derived hydroxyapatite embedded on two-dimensional g-C 3N 4 nanosheets for degradation of hazardous dye and pharmacological drug via Z-scheme charge transfer. Sci Rep 2022; 12:11572. [PMID: 35799052 PMCID: PMC9262945 DOI: 10.1038/s41598-022-15799-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 06/29/2022] [Indexed: 11/30/2022] Open
Abstract
In recent years, there has been an increase in demand for inexpensive biowaste-derived photocatalysts for the degradation of hazardous dyes and pharmacological drugs. Here, we developed eggshell derived hydroxyapatite nanoparticles entrenched on two-dimensional g-C3N4 nanosheets. The structural, morphological and photophysical behavior of the materials is confirmed through various analytical techniques. The photocatalytic performance of the highly efficient HAp/gC3N4 photocatalyst is evaluated against methylene blue (MB) and doxycycline drug contaminates under UV–visible light exposure. The HAp/gC3N4 photocatalyst exhibit excellent photocatalytic performance for MB dye (93.69%) and doxycycline drug (83.08%) compared to bare HAp and g-C3N4 nanosheets. The ultimate point to note is that the HAp/gC3N4 photocatalyst was recycled in four consecutive cycles without any degradation performance. Superoxide radicals play an important role in degradation performance, which has been confirmed by scavenger experiments. Therefore, the biowaste-derived HAp combined with gC3N4 nanosheets is a promising photocatalyst for the degradation of hazardous dyes and pharmacological drug wastes.
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Affiliation(s)
- Palanisamy Govindasamy
- School of Chemical Engineering, Yeungnam University, Gyeongsan, Gyeongbuk, 38541, Republic of Korea.
| | - Bhuvaneswari Kandasamy
- Department of Electronics and Communication Engineering, Sri Sivasubramaniya Nadar College of Engineering, Tamil Nadu, Kalavakkam, 603 110, India
| | - Pazhanivel Thangavelu
- Smart Materials Interface Laboratory, Department of Physics, Periyar University, Tamil Nadu, Salem, 636 011, India
| | - Selvaraj Barathi
- School of Chemical Engineering, Yeungnam University, Gyeongsan, Gyeongbuk, 38541, Republic of Korea.
| | - Maiyalagan Thandavarayan
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, 603203, Tamil Nadu, India
| | - Mohd Shkir
- Advanced Functional Materials and Optoelectronics Laboratory (AFMOL), Department of Physics, Faculty of Science, King Khalid University, Abha, 61413, Saudi Arabia.,Department of Chemistry and University Centre for Research and Development, Chandigarh University, Mohali, 140413, Punjab, India
| | - Jintae Lee
- School of Chemical Engineering, Yeungnam University, Gyeongsan, Gyeongbuk, 38541, Republic of Korea.
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5
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Hezam A, Drmosh QA, Ponnamma D, Bajiri MA, Qamar M, Namratha K, Zare M, Nayan MB, Onaizi SA, Byrappa K. Strategies to Enhance ZnO Photocatalyst's Performance for Water Treatment: A Comprehensive Review. CHEM REC 2022; 22:e202100299. [PMID: 35119182 DOI: 10.1002/tcr.202100299] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 01/22/2022] [Indexed: 01/05/2023]
Abstract
Despite the photocatalytic organic pollutant degradation using ZnO started in 1910-1911, many challenges are still ahead, and several critical issues have to be addressed. Large band gap, and short life-time of photogenerated electrons and holes are critical issues negatively affect the photocatalytic activity of ZnO. Various approaches have been introduced to overcome these issues including intrinsic doping, extrinsic doping, and heterostructure. This review introduces unique and deep insights into tuning of the photocatalytic activity of ZnO. It starts by description of how to tune the photocatalytic activity of pristine ZnO through tuning its morphology, surface area, exposed face, and intrinsic defects. Afterward, the review explains how the Z-scheme approach succeed to address the redox weakened issue of heterojunction approach. In general, this review provides a clear image that helps the researcher to tune the photocatalytic activity of pristine ZnO and its heterostructure.
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Affiliation(s)
- Abdo Hezam
- Center for Materials Science and Technology, University of Mysore, Vijana Bhavana, Manasagangothiri, 570 006, Mysuru, India.,Leibniz-Institute for Catalysis at the University of Rostock, 18059, Rostock, Germany
| | - Q A Drmosh
- Interdisciplinary Research Center for Hydrogen and Energy Storage (HES), King Fahd University of Petroleum and Minerals (KFUPM), 31261, Dhahran, Saudi Arabia
| | | | - Mohammed Abdullah Bajiri
- Department of Studies and Research in Industrial Chemistry, School of Chemical Sciences, Kuvempu University, 577 451, Shankaraghatta, India
| | - Mohammad Qamar
- Interdisciplinary Research Center for Hydrogen and Energy Storage (HES), King Fahd University of Petroleum and Minerals (KFUPM), 31261, Dhahran, Saudi Arabia
| | - K Namratha
- DOS in Earth Science, University of Mysore, Mysuru, 570 006, India
| | - Mina Zare
- Center for Materials Science and Technology, University of Mysore, Vijana Bhavana, Manasagangothiri, 570 006, Mysuru, India
| | - M B Nayan
- Center for Materials Science and Technology, University of Mysore, Vijana Bhavana, Manasagangothiri, 570 006, Mysuru, India
| | - Sagheer A Onaizi
- Interdisciplinary Research Center for Hydrogen and Energy Storage (HES), King Fahd University of Petroleum and Minerals (KFUPM), 31261, Dhahran, Saudi Arabia.,Department of Chemical Engineering, King Fahd University of Petroleum and Minerals, 31216, Dhahran, Saudi Arabia
| | - K Byrappa
- Adichunchanagiri University, N.H.75, 571448, B. G. Nagara, Mandya District, India
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Liu M, Zhang S, Wang Y, Liu J, Hu W, Lu X. Hexavalent Chromium as a Smart Switch for Peroxidase-like Activity Regulation via the Surface Electronic Redistribution of Silver Nanoparticles Anchored on Carbon Spheres. Anal Chem 2022; 94:1669-1677. [PMID: 35020355 DOI: 10.1021/acs.analchem.1c04219] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Although some ions, due to their unique chemical properties, can regulate the enzyme-like activity of nanomaterials, it is still a huge challenge to explore the mechanism of regulation. Herein, we found that Cr6+ (CrO42-) as a smart switch can significantly increase the peroxidase-like (POD-like) activity of silver nanoparticles (Ag NPs), which were anchored efficiently on carbon spheres (Cal-CS/PEG/Ag) using amino-modified poly(ethylene glycol) (PEG) as a bridge. Density functional theory (DFT) calculations demonstrated that the addition of Cr6+ can not only adjust the surface electronic redistribution of Ag atoms but also improve the geometric structure of the adsorbed intermediate, which resulted in the optimization of free energy and change of bond lengths in the catalytic reaction process, increasing the POD-like activity of Cal-CS/PEG/Ag. Based on the Cr6+-increased POD-like activity of Cal-CS/PEG/Ag, we successfully constructed a visual sensor of Cr6+ along with quantitative analysis by the UV spectrum. The sensor has good selectivity for other 29 interfering ions and molecules with a detection limit of 79 nM. In this work, the detailed mechanism of the Cr6+-increased POD-like activity of Ag NPs was studied and a new possibility for the rational design of ion visual sensors using nanomaterials was proposed.
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Affiliation(s)
- Meili Liu
- Tianjin Key Laboratory of Molecular Optoelectronic, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, P. R. China
| | - Shouting Zhang
- Tianjin Key Laboratory of Molecular Optoelectronic, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, P. R. China
| | - Yingsha Wang
- Tianjin Key Laboratory of Molecular Optoelectronic, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, P. R. China
| | - Jia Liu
- Tianjin Key Laboratory of Molecular Optoelectronic, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, P. R. China
| | - Wenping Hu
- Tianjin Key Laboratory of Molecular Optoelectronic, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, P. R. China
| | - Xiaoquan Lu
- Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China
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7
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Degradation of organics using LaFeO3 as a persulfate activator under low-intensity ultra-violet-light irradiation: Catalytic performance and mechanism. J RARE EARTH 2021. [DOI: 10.1016/j.jre.2021.07.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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8
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Tóth ZR, Pap Z, Kiss J, Baia L, Gyulavári T, Czekes Z, Todea M, Magyari K, Kovács G, Hernadi K. Shape tailoring of AgBr microstructures: effect of the cations of different bromide sources and applied surfactants. RSC Adv 2021; 11:9709-9720. [PMID: 35423471 PMCID: PMC8695391 DOI: 10.1039/d0ra09144h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 02/01/2021] [Indexed: 11/21/2022] Open
Abstract
Investigations regarding AgBr-based photocatalysts came to the center of attention due to their high photosensitivity. The present research focuses on the systematic investigation regarding the effect of different alkali metal cation radii and surfactants/capping agents applied during the synthesis of silver-halides. Their morpho-structural and optical properties were determined via X-ray diffractometry, diffuse reflectance spectroscopy, scanning electron microscopy, infrared spectroscopy, and contact angle measurements. The semiconductors' photocatalytic activities were investigated using methyl orange as the model contaminant under visible light irradiation. The correlation between the photocatalytic activity and the obtained optical and morpho-structural properties was analyzed using generalized linear models. Moreover, since the (photo)stability of Ag-based photoactive materials is a crucial issue, the stability of catalysts was also investigated after the degradation process. It was concluded that (i) the photoactivity of the samples could be fine-tuned using different precursors and surfactants, (ii) the as-obtained AgBr microcrystals were transformed into other Ag-containing composites during/after the degradation, and (iii) elemental bromide did not form during the degradation process. Thus, the proposed mechanisms in the literature (for the degradation of MO using AgBr) must be reconsidered. Systematic investigation of the effect of different alkali metal cation radii and shape-tailoring agents applied during the synthesis of AgBr-based photocatalysts.![]()
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Affiliation(s)
- Zsejke-Réka Tóth
- Department of Applied and Environmental Chemistry, University of Szeged Rerrich Béla tér 1 HU-6720 Szeged Hungary .,Nanostructured Materials and Bio-Nano-Interfaces Center, Institute for Interdisciplinary Research on Bio-Nano-Sciences, Babeş-Bolyai University Treboniu Laurian 42 RO-400271 Cluj-Napoca Romania
| | - Zsolt Pap
- Nanostructured Materials and Bio-Nano-Interfaces Center, Institute for Interdisciplinary Research on Bio-Nano-Sciences, Babeş-Bolyai University Treboniu Laurian 42 RO-400271 Cluj-Napoca Romania .,Institute of Environmental Science and Technology, University of Szeged Tisza Lajos krt. 103 HU-6720 Szeged Hungary.,Institute of Research-Development-Innovation in Applied Natural Sciences, Babes-Bolyai University Fântânele 30 RO-400294 Cluj-Napoca Romania
| | - János Kiss
- Department of Applied and Environmental Chemistry, University of Szeged Rerrich Béla tér 1 HU-6720 Szeged Hungary
| | - Lucian Baia
- Nanostructured Materials and Bio-Nano-Interfaces Center, Institute for Interdisciplinary Research on Bio-Nano-Sciences, Babeş-Bolyai University Treboniu Laurian 42 RO-400271 Cluj-Napoca Romania .,Faculty of Physics, Babeş-Bolyai University M. Kogălniceanu 1 RO-400084 Cluj-Napoca Romania
| | - Tamás Gyulavári
- Department of Applied and Environmental Chemistry, University of Szeged Rerrich Béla tér 1 HU-6720 Szeged Hungary
| | - Zsolt Czekes
- Nanostructured Materials and Bio-Nano-Interfaces Center, Institute for Interdisciplinary Research on Bio-Nano-Sciences, Babeş-Bolyai University Treboniu Laurian 42 RO-400271 Cluj-Napoca Romania .,Hungarian Department of Biology and Ecology, Babeş-Bolyai University Clinicilor 5-7 RO-400006 Cluj-Napoca Romania
| | - Milica Todea
- Nanostructured Materials and Bio-Nano-Interfaces Center, Institute for Interdisciplinary Research on Bio-Nano-Sciences, Babeş-Bolyai University Treboniu Laurian 42 RO-400271 Cluj-Napoca Romania .,Iuliu Hatieganu University of Medicine and Pharmacy, Faculty of Medicine Victor Babeş 8 RO-400012 Cluj-Napoca Romania
| | - Klára Magyari
- Nanostructured Materials and Bio-Nano-Interfaces Center, Institute for Interdisciplinary Research on Bio-Nano-Sciences, Babeş-Bolyai University Treboniu Laurian 42 RO-400271 Cluj-Napoca Romania .,Institute of Environmental Science and Technology, University of Szeged Tisza Lajos krt. 103 HU-6720 Szeged Hungary
| | - Gábor Kovács
- Department of Applied and Environmental Chemistry, University of Szeged Rerrich Béla tér 1 HU-6720 Szeged Hungary .,Nanostructured Materials and Bio-Nano-Interfaces Center, Institute for Interdisciplinary Research on Bio-Nano-Sciences, Babeş-Bolyai University Treboniu Laurian 42 RO-400271 Cluj-Napoca Romania .,Institute of Environmental Science and Technology, University of Szeged Tisza Lajos krt. 103 HU-6720 Szeged Hungary
| | - Klara Hernadi
- Department of Applied and Environmental Chemistry, University of Szeged Rerrich Béla tér 1 HU-6720 Szeged Hungary .,Institute of Physical Metallurgy, Metal Forming and Nanotechnology, University of Miskolc 3515 Miskolc-Egyetemváros Hungary
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9
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Wojnarowicz J, Chudoba T, Lojkowski W. A Review of Microwave Synthesis of Zinc Oxide Nanomaterials: Reactants, Process Parameters and Morphoslogies. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1086. [PMID: 32486522 PMCID: PMC7353225 DOI: 10.3390/nano10061086] [Citation(s) in RCA: 128] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 05/11/2020] [Accepted: 05/19/2020] [Indexed: 12/18/2022]
Abstract
Zinc oxide (ZnO) is a multifunctional material due to its exceptional physicochemical properties and broad usefulness. The special properties resulting from the reduction of the material size from the macro scale to the nano scale has made the application of ZnO nanomaterials (ZnO NMs) more popular in numerous consumer products. In recent years, particular attention has been drawn to the development of various methods of ZnO NMs synthesis, which above all meet the requirements of the green chemistry approach. The application of the microwave heating technology when obtaining ZnO NMs enables the development of new methods of syntheses, which are characterised by, among others, the possibility to control the properties, repeatability, reproducibility, short synthesis duration, low price, purity, and fulfilment of the eco-friendly approach criterion. The dynamic development of materials engineering is the reason why it is necessary to obtain ZnO NMs with strictly defined properties. The present review aims to discuss the state of the art regarding the microwave synthesis of undoped and doped ZnO NMs. The first part of the review presents the properties of ZnO and new applications of ZnO NMs. Subsequently, the properties of microwave heating are discussed and compared with conventional heating and areas of application are presented. The final part of the paper presents reactants, parameters of processes, and the morphology of products, with a division of the microwave synthesis of ZnO NMs into three primary groups, namely hydrothermal, solvothermal, and hybrid methods.
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Affiliation(s)
- Jacek Wojnarowicz
- Institute of High Pressure Physics, Polish Academy of Sciences, Sokolowska 29/37, 01-142 Warsaw, Poland; (T.C.); (W.L.)
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10
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Panthi G, Gyawali KR, Park M. Towards the Enhancement in Photocatalytic Performance of Ag 3PO 4 Nanoparticles through Sulfate Doping and Anchoring on Electrospun Nanofibers. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E929. [PMID: 32403366 PMCID: PMC7279221 DOI: 10.3390/nano10050929] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 05/06/2020] [Accepted: 05/08/2020] [Indexed: 02/06/2023]
Abstract
Present work reports the enhancement in photocatalytic performance of Ag3PO4 nanoparticles through sulfate doping and anchoring on Polyacrylonitrile (PAN)-electrospun nanofibers (SO42--Ag3PO4/PAN-electrospun nanofibers) via electrospinning followed by ion-exchange reaction. Morphology, structure, chemical composition, and optical properties of the prepared sample were characterized using XRD, FESEM, FTIR, XPS, and DRS. The anchoring of SO42--Ag3PO4 nanoparticles on the surface of PAN-electrospun nanofibers was evidenced by the change in color of the PAN nanofibers mat from white to yellow after ion-exchange reaction. FESEM analysis revealed the existence of numerous SO42--Ag3PO4 nanoparticles on the surface of PAN nanofibers. Photocatalytic activity and stability of the prepared sample was tested for the degradation of Methylene blue (MB) and Rhodamine B (RhB) dyes under visible light irradiation for three continuous cycles. Experimental results showed enhanced photodegradation activity of SO42--Ag3PO4/PAN-electrospun nanofibers compared to that of sulfate undoped sample (Ag3PO4/PAN-electrospun nanofibers). Doping of SO42- into Ag3PO4 crystal lattice could increase the photogenerated electron-hole separation capability, and PAN nanofibers served as support for nanoparticles to prevent from agglomeration.
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Affiliation(s)
- Gopal Panthi
- Department of Biomedical Sciences and Institute for Medical Science, Jeonbuk National University, Jeonju 54907, Korea;
| | - Kapil Raj Gyawali
- Department of Chemistry, Birendra Multiple Campus, Tribhuvan University, Bharatpur 442000, Chitwan, Nepal;
| | - Mira Park
- Department of Biomedical Sciences and Institute for Medical Science, Jeonbuk National University, Jeonju 54907, Korea;
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11
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Zhang M, Li Y, Wang Q, Jin R, Xu H, Gao S. Effect of different reductants on the composition and photocatalytic performances of Ag/AgIO3 hybrids prepared by in-situ reduction method. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.107876] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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12
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Enhanced Antibacterial Property of Sulfate-Doped Ag 3PO 4 Nanoparticles Supported on PAN Electrospun Nanofibers. Molecules 2020; 25:molecules25061411. [PMID: 32204541 PMCID: PMC7144394 DOI: 10.3390/molecules25061411] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 03/12/2020] [Accepted: 03/13/2020] [Indexed: 11/16/2022] Open
Abstract
Heterojunction nanofibers of PAN decorated with sulfate doped Ag3PO4 nanoparticles (SO42−-Ag3PO4/PAN electrospun nanofibers) were successfully fabricated by combining simple and versatile electrospinning technique with ion exchange reaction. The novel material possessing good flexibility could exhibit superior antibacterial property over sulfate undoped species (Ag3PO4/PAN electrospun nanofibers). FESEM, XRD, FTIR, XPS and DRS were applied to characterize the morphology, phase structure, bonding configuration, elemental composition, and optical properties of the as fabricated samples. FESEM characterization confirmed the successful incorporation of SO42−-Ag3PO4 nanoparticles on PAN electrospun nanofibers. The doping of SO42− ions into Ag3PO4 crystal lattice by replacing PO43− ions can provide sufficient electron-hole separation capability to the SO42−-Ag3PO4/PAN heterojunction to generate reactive oxygen species (ROS) under visible light irradiation and enhances its antibacterial performance. Finally, we hope this work may offer a new paradigm to design and fabricate other types of flexible self-supporting negative-ions-doped heterojunction nanofibers using electrospinning technique for bactericidal applications.
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13
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Zhu Y, Pan Y, Zhang E, Dai W. A self-assembled urchin-like TiO2@Ag–CuO with enhanced photocatalytic activity toward tetracycline hydrochloride degradation. NEW J CHEM 2020. [DOI: 10.1039/d0nj02153a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A two-step approach based on alloy ribbon for preparing a ternary hetero-junction with enhanced photocatalytic activity toward tetracycline hydrochloride degradation.
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Affiliation(s)
- Yin'an Zhu
- School of Materials Science and Engineering
- Southeast University
- Jiangsu Key Laboratory for Advanced Metallic Materials
- Nanjing 211189
- China
| | - Ye Pan
- School of Materials Science and Engineering
- Southeast University
- Jiangsu Key Laboratory for Advanced Metallic Materials
- Nanjing 211189
- China
| | - Enming Zhang
- School of Materials Science and Engineering
- Southeast University
- Jiangsu Key Laboratory for Advanced Metallic Materials
- Nanjing 211189
- China
| | - Weiji Dai
- School of Materials Science and Engineering
- Southeast University
- Jiangsu Key Laboratory for Advanced Metallic Materials
- Nanjing 211189
- China
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Ren T, Jin Z, Yang J, Hu R, Zhao F, Gao X, Zhao C. Highly efficient and stable p-LaFeO 3/n-ZnO heterojunction photocatalyst for phenol degradation under visible light irradiation. JOURNAL OF HAZARDOUS MATERIALS 2019; 377:195-205. [PMID: 31163348 DOI: 10.1016/j.jhazmat.2019.05.070] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Revised: 05/04/2019] [Accepted: 05/26/2019] [Indexed: 06/09/2023]
Abstract
A series of catalysts with p-LaFeO3/n-ZnO heterostructure were designed and prepared by hydrothermal method. The structure, surface topographies, optical properties and interfacial interactions of these photocatalysts were analyzed by XRD, SEM, TEM, PL, Uv-vis DRS, XPS, COD, TOC etc., indicating that p-n heterojunction formed at the interface between p-LaFeO3 and n-ZnO, which enhanced the photocatalytic activity. Among them, the 20%-p-LaFeO3/n-ZnO composite exhibits the best activity for the phenol degradation under visible light. The superior photocatalytic activity of the heterojunction photocatalyst is mainly attributed to the formation of p-n heterojunction which leads to an efficient separation of photogenerated electron-hole pairs. Besides, the 20%-p-LaFeO3/n-ZnO heterojunction photocatalyst shows the excellent photocatalytic stability after 4 cycles. And from the free radical capture experiment, the degradation of phenol is dominated by the oxidation reaction of hydroxyl radicals and direct hole oxidation. What's more, certain intermediates were detected by HPLC and 3D-EEMs. Therefore, a photocatalytic mechanism of the 20%-p-LaFeO3/n-ZnO p-n heterojunction catalyst for phenol degradation under visible light irradiation was proposed.
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Affiliation(s)
- Ting Ren
- Key Laboratory of Coal Chemistry, School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, Inner Mongolia, China
| | - Zehua Jin
- Key Laboratory of Coal Chemistry, School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, Inner Mongolia, China
| | - Jun Yang
- Key Laboratory of Coal Chemistry, School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, Inner Mongolia, China
| | - Ruisheng Hu
- Key Laboratory of Coal Chemistry, School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, Inner Mongolia, China.
| | - Fu Zhao
- Key Laboratory of Coal Chemistry, School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, Inner Mongolia, China
| | - Xiaojiao Gao
- Key Laboratory of Coal Chemistry, School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, Inner Mongolia, China
| | - Chunxiao Zhao
- Key Laboratory of Coal Chemistry, School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, Inner Mongolia, China
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15
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Zhao B, Yi H, Tang X, Li Q, Liu D, Gao F. Using CuO-MnO x/AC-H as catalyst for simultaneous removal of Hg° and NO from coal-fired flue gas. JOURNAL OF HAZARDOUS MATERIALS 2019; 364:700-709. [PMID: 30412843 DOI: 10.1016/j.jhazmat.2018.04.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 03/29/2018] [Accepted: 04/01/2018] [Indexed: 06/08/2023]
Abstract
A series of CuO-MnOx modified catalysts were prepared, and proposed for simultaneous removal of Hg° and NO from flue gas. As Mn loading value was 5%, the high value of 90% Hg and 60% NOx were removed efficiently. With gradual increasing of reaction temperature, the mercury removal efficiency (Mercury RE) first increased to 92% then decreased slightly, while NOx removal efficiency (NOx RE) exhibited a trend of continuous increase. O2 had promotional effect on the double pollutants removal, while NH3 had slightly negative effect on Hg° removal. As 5% O2 was added into system, the removal efficiency of Hg and NOx rose by 30% and 47%, respectively. Unfortunately, Mercury RE decreased to 90% in the presence of 500 ppm NH3. Overall, superior Mercury RE (>90%) and NOx RE (78%) were performed over 8%CuO-5%MnOx/AC-H at 200 °C. XRD results revealed calcination affected catalysts activity by playing a role in active components formation at different temperature. In XPS spectra, new formation of HgO and Hg° adsorption on spent catalysts revealed the possible reaction processes that the conversion of CuO and MnO2 on fresh catalyst to other species benefited HgO formation. The removal mechanism might be a combination of Langmuir-Hinshelwood and Mars-van-Krevelen mechanism.
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Affiliation(s)
- Bin Zhao
- Department of Environmental Engineering, School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, PR China; School of Environment, Tsinghua University, Beijing, 100084, PR China
| | - Honghong Yi
- Department of Environmental Engineering, School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, PR China; Beijing Key Laboratory of Resource-Oriented Treatment of Industrial Pollutants, PR China.
| | - Xiaolong Tang
- Department of Environmental Engineering, School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, PR China; Beijing Key Laboratory of Resource-Oriented Treatment of Industrial Pollutants, PR China
| | - Qian Li
- Department of Environmental Engineering, School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, PR China
| | - Dingding Liu
- Department of Environmental Engineering, School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, PR China
| | - Fengyu Gao
- Department of Environmental Engineering, School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, PR China
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16
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Güy N, Özacar M. Ag/Ag2CrO4 nanoparticles modified on ZnO nanorods as an efficient plasmonic photocatalyst under visible light. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2018.10.035] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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17
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Review on the criteria anticipated for the fabrication of highly efficient ZnO-based visible-light-driven photocatalysts. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2018.01.012] [Citation(s) in RCA: 525] [Impact Index Per Article: 87.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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18
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Sushma C, Girish Kumar S. Advancements in the zinc oxide nanomaterials for efficient photocatalysis. CHEMICAL PAPERS 2017. [DOI: 10.1007/s11696-017-0217-5] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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19
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Pirhashemi M, Habibi-Yangjeh A. Ultrasonic-assisted preparation of plasmonic ZnO/Ag/Ag2WO4 nanocomposites with high visible-light photocatalytic performance for degradation of organic pollutants. J Colloid Interface Sci 2017; 491:216-229. [DOI: 10.1016/j.jcis.2016.12.044] [Citation(s) in RCA: 237] [Impact Index Per Article: 33.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 12/15/2016] [Accepted: 12/17/2016] [Indexed: 11/30/2022]
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20
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An Y, Cao W, Zhou Y, Chen L, Qi Z. Plasmonic Ag/AgCl‐modified bismuth subcarbonate with enhanced visible light photocatalytic activity. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.3777] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Yanting An
- State Key Laboratory of Chemical Engineering, School of Chemical EngineeringEast China University of Science and Technology Shanghai 200237 China
| | - Wenrong Cao
- State Key Laboratory of Chemical Engineering, School of Chemical EngineeringEast China University of Science and Technology Shanghai 200237 China
| | - Yuanyuan Zhou
- State Key Laboratory of Agricultural Microbiology, College of ScienceHuazhong Agricultural University Wuhan 430070 China
| | - Lifang Chen
- State Key Laboratory of Chemical Engineering, School of Chemical EngineeringEast China University of Science and Technology Shanghai 200237 China
| | - Zhiwen Qi
- State Key Laboratory of Chemical Engineering, School of Chemical EngineeringEast China University of Science and Technology Shanghai 200237 China
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21
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High performance magnetically recoverable g-C3N4/Fe3O4/Ag/Ag2SO3 plasmonic photocatalyst for enhanced photocatalytic degradation of water pollutants. ADV POWDER TECHNOL 2017. [DOI: 10.1016/j.apt.2016.10.025] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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22
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Hao J, Wang Q, Zhao Z. Synthesis and characterization of g-C3N4/BiNbO4 composite materials with visible light photocatalytic activity. J Photochem Photobiol A Chem 2017. [DOI: 10.1016/j.jphotochem.2016.11.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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23
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Saleh TA, Majeed S, Nayak A, Bhushan B. Principles and Advantages of Microwave-Assisted Methods for the Synthesis of Nanomaterials for Water Purification. ADVANCED NANOMATERIALS FOR WATER ENGINEERING, TREATMENT, AND HYDRAULICS 2017. [DOI: 10.4018/978-1-5225-2136-5.ch003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Nanomaterials are the pillars of nanoscience and nanotechnology and to realize their full potential in various potential applications, synthetic methodologies/routes need to be established that are simple, fast and cost-effective. Wet-chemical approaches for nanomaterial synthesis have proven to be among the most versatile and effective routes to finely tailor nanocrystals with varying compositional and architectural complexity. Microwave-assisted solution route represents an efficient wet-chemical approach for the synthesis of nanomaterials that offers additional advantages, such as rapid volumetric heating, high reaction rates, size and shape control by tuning reaction parameters, and energy efficiency. In addition, the homogenous heating of the reactants in microwave synthesis minimizes thermal gradients and provides uniform nucleation and growth conditions that leads to the formation of nanomaterials with uniform size distribution. This chapter deals with the basics of microwave chemistry and its applications towards the synthesis of nanomaterials for catalytic applications.
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Affiliation(s)
- Tawfik A. Saleh
- Department of Chemistry, King Fahd University of Petroleum and Minerals, Saudi Arabia
| | | | - Arunima Nayak
- Innovació i Recerca Industrial I Sostenible, Spain & Graphic Era University, India
| | - Brij Bhushan
- Innovació i Recerca Industrial I Sostenible, Spain & Graphic Era University, India
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24
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Akhundi A, Habibi-Yangjeh A. Novel g-C3N4/Ag2SO4 nanocomposites: Fast microwave-assisted preparation and enhanced photocatalytic performance towards degradation of organic pollutants under visible light. J Colloid Interface Sci 2016; 482:165-174. [PMID: 27501040 DOI: 10.1016/j.jcis.2016.08.002] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Revised: 07/14/2016] [Indexed: 10/21/2022]
Abstract
Graphite carbon nitride (g-C3N4)/Ag2SO4 nanocomposites, as highly enhanced visible-light-driven photocatalysts, were prepared by a fast microwave-assisted method. The resulting g-C3N4/Ag2SO4 nanocomposites were characterized by X-ray diffraction, energy dispersive analysis of X-rays, scanning electron microscopy, transmission electron microscopy, thermogravimetric analysis, Fourier transform-infrared spectroscopy, and ultraviolet-visible diffuse reflectance spectroscopy techniques. Moreover, charge separation efficiency was studied by photoluminescence measurements. Photocatalytic activity of the g-C3N4/Ag2SO4 (40%) nanocomposite in degradation of rhodamine B, methylene blue, and fuchsine is about 6, 3.8, and 3.3-folds greater than that of the g-C3N4 under visible-light illumination. Effect of microwave irradiation time, calcination temperature, and scavengers of the reactive species on the degradation reaction was also evaluated. The enhanced photocatalytic activity was mainly ascribed to the matching band energies of g-C3N4 and Ag2SO4 which leads to an improved separation of photogenerated electron-hole pairs. Finally, the optimized nanocomposite was recycled for five times without remarkable decrease of the photocatalytic activity.
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Affiliation(s)
- Anise Akhundi
- Department of Chemistry, Faculty of Science, University of Mohaghegh Ardabili, P.O. Box 179, Ardabil, Iran
| | - Aziz Habibi-Yangjeh
- Department of Chemistry, Faculty of Science, University of Mohaghegh Ardabili, P.O. Box 179, Ardabil, Iran.
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25
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Fe3O4/ZnO/Ag3VO4/AgI nanocomposites: Quaternary magnetic photocatalysts with excellent activity in degradation of water pollutants under visible light. Sep Purif Technol 2016. [DOI: 10.1016/j.seppur.2016.04.022] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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26
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Shekofteh-Gohari M, Habibi-Yangjeh A. Novel magnetically separable ZnO/AgBr/Fe3O4/Ag3VO4 nanocomposites with tandem n–n heterojunctions as highly efficient visible-light-driven photocatalysts. RSC Adv 2016. [DOI: 10.1039/c5ra21356h] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In the present work, novel magnetically separable ZnO/AgBr/Fe3O4/Ag3VO4 nanocomposites with different weight percentages of Ag3VO4 were successfully prepared.
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Affiliation(s)
| | - Aziz Habibi-Yangjeh
- Department of Chemistry
- Faculty of Science
- University of Mohaghegh Ardabili
- Ardabil
- Iran
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