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Sahoo S, Mahamallik P, Das R, Panigrahi S. A critical review on non-metal doped g-C 3N 4 based photocatalyst for organic pollutant remediation with sustainability assessment by life cycle analysis. ENVIRONMENTAL RESEARCH 2024; 258:119390. [PMID: 38879105 DOI: 10.1016/j.envres.2024.119390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 05/14/2024] [Accepted: 06/07/2024] [Indexed: 06/22/2024]
Abstract
Photocatalysis is recognized to be one of the most promising ways to address energy and environmental issues by utilizing visible light. Graphitic carbon nitride (g-C3N4), with a moderate band gap (∼2.7 eV) has been the flashpoint in environmental photocatalysis as it can work better under visible light, can be synthesized by a facile synthesis process using low-cost materials, thermally and chemically stable. Still the photocatalytic performance of g-C3N4 is not satisfactory because of certain limitations such as insufficient visible light absorption capacity, low electron-hole separation efficiency, high recombination rate, poor surface area. Introduction of doping, band structure engineering, defecting and designing of heterojunction, composites etc. were investigated to amplify its applications. Among all these modifications, elemental doping is a suitable and successful alternative for the enhancement of the photocatalytic activity by changing the optical and electronic properties. This review emphasizes on advancement and trends of elemental doping and its application on photocatalytic organic pollutant remediation in aqueous medium. The fundamental photocatalytic activity of heterogeneous photocatalysis and specifically g-C3N4-based photocatalysis have been discussed. The benfits of non-metal doping, enhanced photocatalytic performance by doping element, mechanism invloved in doping, advantages of co-doping has been explained. Mono, bi, and tri non-metal doped g-C3N4 and their application for the removal of organic pollutants from water medium by visible light photocatalysis has been summerized. Life cycle assessment (LCA) of photocatalytic system has been highlighted. Future research should focus on the large-scale application of the photocatalysis process considering the economic aspects. A rigorous life cycle assessment for deploying the non-metal doped g-C3N4-based photocatalysis technology for successful commercial application is recommended.
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Affiliation(s)
- Subhalaxmi Sahoo
- Water and Wastewater Research Laboratory, Department of Civil Engineering, National Institute of Technology (NIT), Rourkela, 769008, Odisha, India
| | - Prateeksha Mahamallik
- Water and Wastewater Research Laboratory, Department of Civil Engineering, National Institute of Technology (NIT), Rourkela, 769008, Odisha, India.
| | - Rahul Das
- Department of Civil Engineering, National Institute of Technology (NIT), 799046, Agartala, India
| | - Sagarika Panigrahi
- Department of Civil Engineering, National Institute of Technology (NIT), 799046, Agartala, India
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Jitae K, Pham TH, Heesun Y, Nguyen MV, Taeyoung K. Improved photocatalytic oxidation of micropollutant in wastewater by solar light: assisted palladium-doped graphitic carbon nitride. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2024; 46:76. [PMID: 38367100 DOI: 10.1007/s10653-023-01834-y] [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: 10/26/2023] [Accepted: 12/12/2023] [Indexed: 02/19/2024]
Abstract
The escalating global industrial expansion has led to the extensive release of organic compounds into water bodies, resulting in substantial pollution and posing severe threats to both human health and the ecosystem. Among common micropollutants, bisphenol A (MP-BA) has emerged as a significant endocrine-disrupting chemical with potential adverse effects on human health and the environment. This study aims to develop an efficient photocatalyst, specifically by incorporating palladium-doped graphitic carbon nitride (Pd@GCN), to eliminate MP-BA pollutants present in industrial wastewater. The examination of optical properties and photoluminescence indicates that incorporating Pd into GCN enhances the visible light absorption spectra, which extends beyond 570 nm, and accelerates the separation rate of electron-hole pairs. The photocatalytic degradation efficiency of MP-BA increases from 81.7 to 98.8% as the solution pH rises from 5.0 to 9.0. Moreover, Pd@GCN significantly improves the removal rate of MP-BA in wastewater samples, reaching an impressive 92.8% after 60 min of exposure to solar light. Furthermore, the Pd@GCN photocatalyst exhibits notable reusability over six cycles of MP-BA degradation, indicating its promising potential for the treatment of organic pollutants in wastewater under solar light conditions.
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Affiliation(s)
- Kim Jitae
- Institute of Research and development, Duy Tan University, Da Nang, Vietnam
- School of Engineering & Technology, Duy Tan University, Da Nang, Vietnam
| | - Thi-Huong Pham
- Department of Materials Science and Engineering, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam, 13120, South Korea.
| | - Yang Heesun
- Department of Materials Science and Engineering, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam, 13120, South Korea
| | - Minh-Viet Nguyen
- VNU Key Laboratory of Advanced Material for Green Growth, Faculty of Chemistry, VNU University of Science, 334 Nguyen Trai Street, Thanh Xuan, Hanoi, Vietnam
| | - Kim Taeyoung
- Department of Materials Science and Engineering, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam, 13120, South Korea.
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Kumaravel S, Chandrasatheesh C, Palanisamy G, Lee J, Hasan I, Kumaravel S, Avula B, Pongiya UD, Balu K. Highly Efficient Solar-Light-Active Ag-Decorated g-C 3N 4 Composite Photocatalysts for the Degradation of Methyl Orange Dye. MICROMACHINES 2023; 14:1454. [PMID: 37512765 PMCID: PMC10383219 DOI: 10.3390/mi14071454] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 07/17/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023]
Abstract
In this study, we utilized calcination and simple impregnation methods to successfully fabricate bare g-C3N4 (GCN) and x% Ag/g-C3N4 (x% AgGCN) composite photocatalysts with various weight percentages (x = 1, 3, 5, and 7 wt.%). The synthesized bare and composite photocatalysts were analyzed to illustrate their phase formation, functional group, morphology, and optical properties utilizing XRD, FT-IR, UV-Vis DRS, PL, FE-SEM, and the EDS. The photodegradation rate of MO under solar light irradiation was measured, and the 5% AgGCN composite photocatalyst showed higher photocatalytic activity (99%), which is very high compared to other bare and composite photocatalysts. The MO dye degradation rate constant with the 5% AgGCN photocatalyst exhibits 14.83 times better photocatalytic activity compared to the bare GCN catalyst. This photocatalyst showed good efficiency in the degradation of MO dye and demonstrated cycling stability even in the 5th successive photocatalytic reaction cycle. The higher photocatalytic activity of the 5% AgGCN composite catalyst for the degradation of MO dye is due to the interaction of Ag with GCN and the localized surface plasmon resonance (SPR) effect of Ag. The scavenger study results indicate that O2●- radicals play a major role in MO dye degradation. A possible charge-transfer mechanism is proposed to explain the solar-light-driven photocatalyst of GCN.
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Affiliation(s)
- Sakthivel Kumaravel
- Department of Environmental Engineering, Korea Maritime and Ocean University, Busan 49112, Republic of Korea
| | | | - Govindasamy Palanisamy
- School of Chemical Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsan 38541, Republic of Korea
| | - Jintae Lee
- School of Chemical Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsan 38541, Republic of Korea
| | - Imran Hasan
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Saranraj Kumaravel
- Department of Electrical Engineering, National Taipei University of Technology, Taipei 10608, Taiwan
| | - Balakrishna Avula
- Department of Chemistry, Rajeev Gandhi Memorial College of Engineering and Technology (Autonomous), Nandyal 518501, Andhra Pradesh, India
| | - Uma Devi Pongiya
- Department of Biochemistry, Dhanalakshmi Srinivasan College of Arts and Science for Women (Autonomous), Perambalur 621212, Tamil Nadu, India
| | - Krishnakumar Balu
- Departamento de Ingeniería y Ciencia de los Materiales y del Transporte, E.T.S. de Ingenieros, Universidad de Sevilla, Avda. Camino de los Descubrimientos s/n., 41092 Sevilla, Spain
- Department of Chemistry, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai 602105, Tamil Nadu, India
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Tamiru Mengistu M, Wondimu TH, Andoshe DM, Kim JY, Zelekew OA, Hone FG, Tegene NA, Gultom NS, Jang HW. g-C 3N 4-Co 3O 4 Z-Scheme Junction with Green-Synthesized ZnO Photocatalyst for Efficient Degradation of Methylene Blue in Aqueous Solution. Bioinorg Chem Appl 2023; 2023:2948342. [PMID: 37313425 PMCID: PMC10260312 DOI: 10.1155/2023/2948342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 03/31/2023] [Accepted: 05/20/2023] [Indexed: 06/15/2023] Open
Abstract
A simple wet chemical ultrasonic-assisted synthesis method was employed to prepare visible light-driven g-C3N4-ZnO-Co3O4 (GZC) heterojunction photocatalysts. X-ray diffraction (XRD), scanning electromicroscopy (SEM), Fourier-transform infrared spectroscopy (FTIR), Brunauer-Emmett-Teller (BET), ultraviolet (UV), and electrochemical impedance spectroscopy (EIS) are used to characterize the prepared catalysts. XRD confirms the homogenous phase formation of g-C3N4, ZnO, and Co3O4, and the heterogeneous phase for the composites. The synthesized ZnO and Co3O4 by using cellulose as a template show a rod-like morphology. The specific surface area of the catalytic samples increases due to the cellulose template. The measurements of the energy band gap of a g-C3N4-ZnO-Co3O4 composite showed red-shifted optical absorption to the visible range. The photoluminescence (PL) intensity decreases due to the formation of heterojunction. The PL quenching and EIS result shows that the reduction of the recombination rate and interfacial resistance result in charge carrier kinetic improvement in the catalyst. The photocatalytic performance in the degradation of MB dye of the GZC-3 composite was about 8.2-, 3.3-, and 2.5-fold more than that of the g-C3N4, g-C3N4-ZnO, and g-C3N4-Co3O4 samples. The Mott-Schottky plots of the flat band edge position of g-C3N4, ZnO, Co3O4, and Z-scheme g-C3N4-ZnO-Co3O4 photocatalysts may be created. Based on the stability experiment, GZC-3 shows greater photocatalytic activity after four recycling cycles. As a result, the GZC composite is environmentally friendly and efficient photocatalyst and has the potential to consider in the treatment of dye-contaminated wastewater.
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Affiliation(s)
- Mintesinot Tamiru Mengistu
- Department of Materials Science and Engineering, Adama Science and Technology University, P.O. Box 1888, Adama, Ethiopia
| | - Tadele Hunde Wondimu
- Department of Materials Science and Engineering, Adama Science and Technology University, P.O. Box 1888, Adama, Ethiopia
- Center of Advanced Materials Science and Engineering, Adama Science and Technology University, P.O. Box 1888, Adama, Ethiopia
| | - Dinsefa Mensur Andoshe
- Department of Materials Science and Engineering, Adama Science and Technology University, P.O. Box 1888, Adama, Ethiopia
| | - Jung Yong Kim
- Department of Materials Science and Engineering, Adama Science and Technology University, P.O. Box 1888, Adama, Ethiopia
- Center of Advanced Materials Science and Engineering, Adama Science and Technology University, P.O. Box 1888, Adama, Ethiopia
| | - Osman Ahmed Zelekew
- Department of Materials Science and Engineering, Adama Science and Technology University, P.O. Box 1888, Adama, Ethiopia
| | - Fekadu Gashaw Hone
- Physics Department, Addis Ababa University, Addis Ababass 1176, Ethiopia
| | | | - Noto Susanto Gultom
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | - Ho Won Jang
- Department of Materials Science and Engineering Research Institute of Advanced Materials Seoul National University, Seoul 08826, Republic of Korea
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Xu T, Wang R, Gu C, Jiang T. Recyclable detection of gefitinib in clinical sample mediated by multifunctional Ag-anchored g-C 3N 4/MoS 2 composite substrate. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 299:122801. [PMID: 37187146 DOI: 10.1016/j.saa.2023.122801] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 04/08/2023] [Accepted: 04/26/2023] [Indexed: 05/17/2023]
Abstract
Surface-enhanced Raman scattering (SERS) technology enables to satisfy the increasing demand of clinical drug monitoring due to the superiority of fingerprint recognition, real-time response, and nondestructive collection. Here, a novel graphitic carbon nitride (g-C3N4)/ molybdenum disulfide (MoS2)/Ag composite substrate with a 3D surface structure was successfully developed for the recyclable detection of gefitinib in serum. Attributed to the uniform and dense "hotspots" on the shrubby active surfaces in conjunction with the potential synergistic chemical enhancement of g-C3N4/MoS2 heterosystem, a remarkable SERS sensitivity with an attractive enhancement factor value of 3.3 × 107 was demonstrated. Meanwhile, a type-II heterojunction between g-C3N4 and MoS2 enabled more efficient diffusion of photogenerated e--h+ pairs assisted by the localized surface plasmon resonance of Ag NPs, which contributed to the reliable recyclable detection of gefitinib. The ultra-low limit of detection at 10-5 mg/mL and high recycling rates of gefitinib beyond 90% in serum were successfully realized. The results demonstrated the as-prepared SERS substrate has tremendous potential to be untilized for in-situ drug diagnostics.
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Affiliation(s)
- Tao Xu
- Department of Pharmacy, Ningbo City First Hospital, Ningbo 315010, Zhejiang, PR China
| | - Rongyan Wang
- School of Physical Science and Technology, Ningbo University, Ningbo 315211, Zhejiang, PR China
| | - Chenjie Gu
- School of Physical Science and Technology, Ningbo University, Ningbo 315211, Zhejiang, PR China.
| | - Tao Jiang
- School of Physical Science and Technology, Ningbo University, Ningbo 315211, Zhejiang, PR China.
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6
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Su Y, Dong Y, Bao L, Dai C, Liu X, Liu C, Ma D, Jia Y, Jia Y, Zeng C. Increasing electron density by surface plasmon resonance for enhanced photocatalytic CO 2 reduction. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 323:116236. [PMID: 36150351 DOI: 10.1016/j.jenvman.2022.116236] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 09/05/2022] [Accepted: 09/07/2022] [Indexed: 06/16/2023]
Abstract
The photocatalytic CO2 reduction reaction is a multi-electron process, which is greatly affected by the surface electron density. In this work, we synthesize Ag clusters supported on In2O3 plasmonic photocatalysts. The Ag-In2O3 compounds show remarkedly enhanced photocatalytic activity for CO2 conversion to CO compared to pristine In2O3. In the absence of any co-catalyst or sacrificial agent, the CO evolution rate of optimal Ag-In2O3-10 is 1.56 μmol/g/h, achieving 5.38-folds higher than that of In2O3 (0.29 μmol/g/h). Experimental verification and DFT calculation demonstrate that electrons transfer from Ag clusters to In2O3 on Ag-In2O3 compounds. In Ag-In2O3 compounds, Ag clusters serving as electron donators owing to the SPR behaviour are not helpful to decline photo-induced charge recomnation rate, but can provide more electron for photocatalytic reaction. Overall, the Ag clusters promote visible-light absorption and accelerate photocatalytic reaction kinetic for In2O3, resulting in the photocatalytic activity enhancement of Ag-In2O3 compounds. This work puts insight into the function of plasmonic metal on enhancing photocatalysis performance, and provides a feasible strategy to design and fabricate efficient plasmonic photocatalysts.
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Affiliation(s)
- Yujing Su
- Institute of Advanced Materials, College of Chemistry and Chemical Engineering, Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, Jiangxi Normal University, Nanchang, 330022, China
| | - Yujing Dong
- Key Laboratory for Special Functional Materials of Ministry of Education, and School of Materials Science and Engineering, Henan University, Kaifeng, 475004, China
| | - Linping Bao
- Institute of Advanced Materials, College of Chemistry and Chemical Engineering, Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, Jiangxi Normal University, Nanchang, 330022, China
| | - Chunhui Dai
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, 330013, China
| | - Xin Liu
- Institute of Advanced Materials, College of Chemistry and Chemical Engineering, Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, Jiangxi Normal University, Nanchang, 330022, China.
| | - Chengyin Liu
- School of Environmental and Material Engineering, Yantai University, Yantai ,264005, China
| | - Dongwei Ma
- Key Laboratory for Special Functional Materials of Ministry of Education, and School of Materials Science and Engineering, Henan University, Kaifeng, 475004, China.
| | - Yushuai Jia
- Institute of Advanced Materials, College of Chemistry and Chemical Engineering, Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, Jiangxi Normal University, Nanchang, 330022, China
| | - Yu Jia
- Key Laboratory for Special Functional Materials of Ministry of Education, and School of Materials Science and Engineering, Henan University, Kaifeng, 475004, China
| | - Chao Zeng
- Institute of Advanced Materials, College of Chemistry and Chemical Engineering, Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, Jiangxi Normal University, Nanchang, 330022, China.
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7
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Kim MJ, Noh JY, Yun TG, Kang MJ, Son DH, Pyun JC. Laser-Shock-Driven In Situ Evolution of Atomic Defect and Piezoelectricity in Graphitic Carbon Nitride for the Ionization in Mass Spectrometry. ACS NANO 2022; 16:18284-18297. [PMID: 36265010 DOI: 10.1021/acsnano.2c05993] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Nanostructures─coupled with mass spectrometry─have been intensively investigated to improve the detection sensitivity and reproducibility of small biomolecules in laser desorption/ionization mass spectrometry (LDI-MS). However, the impact of laser-induced shock wave on the ionization of the nanostructures has rarely been reported. Herein, we systematically elucidate the laser shock wave effect on the ionization in terms of the in situ development of atomic defects and piezoelectricity in two-dimensional graphitic carbon nitride nanosheets (g-C3N4 NS) by short laser pulses. The mass analysis results of immunosuppressive drugs verify the enhanced LDI-MS performance, structurally originating from anisotropic lattice distortions in g-C3N4 NS, i.e., in-plane extension (contraction) and out-of-plane contraction (extension) that modulate the charge carrier motion. Along with the experimental investigations, density functional theory calculations on Mulliken charges and dipole moments demonstrate the contribution of defect and piezoelectricity to the ionization. The results of this study provide a mechanistic understanding of the underlying ionization processes, which is crucial for revealing the full potential of laser shock waves in LDI-MS.
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Affiliation(s)
- Moon-Ju Kim
- Department of Materials and Science and Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul03722, Republic of Korea
| | - Joo-Yoon Noh
- Department of Materials and Science and Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul03722, Republic of Korea
| | - Tae Gyeong Yun
- Department of Materials and Science and Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul03722, Republic of Korea
| | - Min-Jung Kang
- Korea Institute of Science and Technology (KIST), Seoul02792, Republic of Korea
| | - Dong Hee Son
- Department of Chemistry, Texas A&M University, College Station, Texas77843, United States
| | - Jae-Chul Pyun
- Department of Materials and Science and Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul03722, Republic of Korea
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8
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In-situ reduction of silver nanoparticles on molybdenum disulfide for an ultrasensitive recyclable SERS detection based on electromagnetic and chemical effects. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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9
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Lu S, Zhang Y, Mady MF, Mekonnen Tucho W, Lou F, Yu Z. Efficient Electrochemical Reduction of CO 2 to CO by Ag-Decorated B-Doped g-C 3N 4: A Combined Theoretical and Experimental Study. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c00152] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Song Lu
- Department of Energy and Petroleum Engineering, University of Stavanger, 4036 Stavanger, Norway
| | - Yang Zhang
- Department of Energy and Petroleum Engineering, University of Stavanger, 4036 Stavanger, Norway
- Beyonder AS, Kanalsletta 2, 4033 Stavanger, Norway
| | - Mohamed F. Mady
- Deaprtment of Chemistry, Bioscience and Environmental Engineering, University of Stavanger, 4036 Stavanger, Norway
| | - Wakshum Mekonnen Tucho
- Department of Mechanical and Structural Engineering and Material Science, University of Stavanger, 4036 Stavanger, Norway
| | - Fengliu Lou
- Beyonder AS, Kanalsletta 2, 4033 Stavanger, Norway
| | - Zhixin Yu
- Department of Energy and Petroleum Engineering, University of Stavanger, 4036 Stavanger, Norway
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Ding H, Bao L, Su Y, Li Y, Xu G, Dai C, Zeng C. Core-shell structured Z-scheme Ag 2S/AgIO 3 composites for photocatalytic organic pollutants degradation. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 313:115008. [PMID: 35397465 DOI: 10.1016/j.jenvman.2022.115008] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 03/05/2022] [Accepted: 03/31/2022] [Indexed: 06/14/2023]
Abstract
Constructing direct Z-scheme system is a promising strategy to boost the photocatalytic performance for pollution waters restoration, but it is of great challenge because of the requirement of appropriately staggered energy band alignment and intimate interfacial interaction between semiconductors. Herein, a class of core-shell structured Ag2S-AgIO3 Z-scheme heterostructure photocatalysts are designed and developed. Ag2S is generated by the in-situ ion exchange reaction and anchored on the surface of AgIO3, so the intimate interface between AgIO3 and Ag2S is realized. Integration of AgIO3 and Ag2S extends the ultraviolet absorption of AgIO3 to Vis-NIR region, and also promote the charge separation and migration efficiency, contributing to the enhanced photocatalysis activity for composite catalysts. The optimal Ag2S-AgIO4-4 catalyst exhibits a MO photo-degradation rate constant of 0.298 h-1, which reaches 5.77 and 11.4-folds higher than that of AgIO3 (0.044 h-1) and Ag2S (0.024 h-1). The as-obtained composite catalyst exhibits universally photocatalytic activity in disintegrating diverse industrial pollutants and pharmaceuticals. Particularly, driven by natural sunlight, the Ag2S-AgIO4-4 can effectively decompose MO. A plausible Z-scheme photocatalytic mechanism and reaction pathways of MO degradation over composite catalyst are systemically investigated and proposed.
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Affiliation(s)
- Haojia Ding
- Institute of Advanced Materials, College of Chemistry and Chemical Engineering, Key Laboratory of Functional Small Molecules for Ministry of Education, Jiangxi Normal University, Nanchang, Jiangxi Province, 330022, PR China
| | - Linping Bao
- Institute of Advanced Materials, College of Chemistry and Chemical Engineering, Key Laboratory of Functional Small Molecules for Ministry of Education, Jiangxi Normal University, Nanchang, Jiangxi Province, 330022, PR China
| | - Yao Su
- Institute of Advanced Materials, College of Chemistry and Chemical Engineering, Key Laboratory of Functional Small Molecules for Ministry of Education, Jiangxi Normal University, Nanchang, Jiangxi Province, 330022, PR China
| | - Yuqin Li
- Institute of Advanced Materials, College of Chemistry and Chemical Engineering, Key Laboratory of Functional Small Molecules for Ministry of Education, Jiangxi Normal University, Nanchang, Jiangxi Province, 330022, PR China
| | - Guodong Xu
- Institute of Advanced Scientific Research (iASR), Analysis and Testing Center, Jiangxi Normal University, Nanchang, Jiangxi Province, 330022, PR China
| | - Chunhui Dai
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang 330013, PR China
| | - Chao Zeng
- Institute of Advanced Materials, College of Chemistry and Chemical Engineering, Key Laboratory of Functional Small Molecules for Ministry of Education, Jiangxi Normal University, Nanchang, Jiangxi Province, 330022, PR China.
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11
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He Q, Zhan S, Zhou F. A Tandem Reaction System for Inactivation of Marine Microorganisms by Commercial Carbon Black and Boron-Doped Carbon Nitride. ACS OMEGA 2022; 7:16524-16535. [PMID: 35601316 PMCID: PMC9118206 DOI: 10.1021/acsomega.2c00679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 04/05/2022] [Indexed: 06/15/2023]
Abstract
The Pureballast system, based on photocatalytic technology, can purify ships' ballast water. However, the efficiency of photocatalytic sterilization still needs to be improved due to the shortcomings of the photocatalyst itself and the complex components of seawater. In this work, a tandem reaction of electrocatalytic synthesis and photocatalytic decomposition of hydrogen peroxide (H2O2) was constructed for the inactivation of marine microorganisms. Using seawater and air as raw materials, electrocatalytic synthesis of H2O2 by commercial carbon black can avoid the risk of large-scale storage and transportation of H2O2 on ships. In addition, boron doping can improve the photocatalytic decomposition performance of H2O2 by g-C3N4. Experimental results show that constructing the tandem reaction is effective, inactivating 99.7% of marine bacteria within 1 h. The sterilization efficiency is significantly higher than that of the single way of electrocatalysis (52.8%) or photocatalysis (56.9%). Consequently, we analyzed the reasons for boron doping to enhance the efficiency of g-C3N4 decomposition of H2O2 based on experiments and first principles. The results showed that boron doping could significantly enhance not only the transfer kinetics of photogenerated electrons but also the adsorption capacity of H2O2. This work can provide some reference for the photocatalytic technology study of ballast water treatment.
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12
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Liu X, Ma R, Zhuang L, Hu B, Chen J, Liu X, Wang X. Recent developments of doped g-C 3N 4 photocatalysts for the degradation of organic pollutants. CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY 2021; 51:751-790. [DOI: doi.org/10.1080/10643389.2020.1734433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/25/2023]
Affiliation(s)
- Xiaolu Liu
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, P. R. China
- School of Life Science, Shaoxing University, Shaoxing, P. R. China
| | - Ran Ma
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, P. R. China
| | - Li Zhuang
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, P. R. China
| | - Baowei Hu
- School of Life Science, Shaoxing University, Shaoxing, P. R. China
| | - Jianrong Chen
- College of Geography and Environmental Science, Zhejiang Normal University, Jinhua, P. R. China
| | - Xiaoyan Liu
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, P. R. China
| | - Xiangke Wang
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, P. R. China
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Soochow University, Suzhou, P. R. China
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13
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Thorat N, Borade S, Varma R, Yadav A, Gupta S, Fernandes R, Sarawade P, Bhanage B, Patel N. High surface area Nanoflakes of P-gC3N4 photocatalyst loaded with Ag nanoparticle with intraplanar and interplanar charge separation for environmental remediation. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2020.113098] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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14
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Rajabather J, Albaqami MD, Lohedan HA, Arunachalam P, Thirunavukkarasu K, Appaturi JN. Preparation, characterization, and morphology insight of ZnO nanodisk–TiO
2
‐coated SWCNT thin film composites for catalytic sensor application. SURF INTERFACE ANAL 2021. [DOI: 10.1002/sia.6926] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- JothiRamalingam Rajabather
- Chemistry Department, College of Science King Saud University Riyadh 11451 Saudi Arabia
- Surfactant Research Chair, Chemistry Department, College of Science King Saud University Riyadh 11451 Saudi Arabia
| | - Munirah D. Albaqami
- Chemistry Department, College of Science King Saud University Riyadh 11451 Saudi Arabia
| | - Hamad A. Lohedan
- Surfactant Research Chair, Chemistry Department, College of Science King Saud University Riyadh 11451 Saudi Arabia
| | | | - Kandasamy Thirunavukkarasu
- Department of chemistry Vel Tech Rangarajan Dr.Sagunthala R&D Institute of Science and Technology, Avadi, Chennai, India Chennai 600062 India
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15
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Nguyen VH, Mousavi M, Ghasemi JB, Delbari SA, Le QV, Shahedi Asl M, Shokouhimehr M, Mohammadi M, Azizian-Kalandaragh Y, Sabahi Namini A. Synthesis, characterization, and photocatalytic performance of Ag/AgFeO2 decorated on g-C3N4-nanosheet under the visible light irradiation. J Taiwan Inst Chem Eng 2020. [DOI: 10.1016/j.jtice.2020.10.009] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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16
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Assessment of Crystalline Materials for Solid State Lighting Applications: Beyond the Rare Earth Elements. CRYSTALS 2020. [DOI: 10.3390/cryst10070559] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In everyday life, we are continually exposed to different lighting systems, from the home interior to car lights and from public lighting to displays. The basic emission principles on which they are based range from the old incandescent lamps to the well-established compact fluorescent lamps (CFL) and to the more modern Light Emitting Diode (LEDs) that are dominating the actual market and also promise greater development in the coming years. In the LED technology, the key point is the electroluminescence material, but the fundamental role of proper phosphors is sometimes underestimated even when it is essential for an ideal color rendering. In this review, we analyze the main solid-state techniques for lighting applications, paying attention to the fundamental properties of phosphors to be successfully applied. Currently, the most widely used materials are based on rare-earth elements (REEs) whereas Ce:YAG represents the benchmark for white LEDs. However, there are several drawbacks to the REEs’ supply chain and several concerns from an environmental point of view. We analyze these critical issues and review alternative materials that can overcome their use. New compounds with reduced or totally REE free, quantum dots, metal–organic framework, and organic phosphors will be examined with reference to the current state-of-the-art.
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17
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Koutavarapu R, Babu B, Reddy CV, Reddy IN, Reddy KR, Rao MC, Aminabhavi TM, Cho M, Kim D, Shim J. ZnO nanosheets-decorated Bi 2WO 6 nanolayers as efficient photocatalysts for the removal of toxic environmental pollutants and photoelectrochemical solar water oxidation. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 265:110504. [PMID: 32275239 DOI: 10.1016/j.jenvman.2020.110504] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Revised: 03/25/2020] [Accepted: 03/25/2020] [Indexed: 06/11/2023]
Abstract
Herein we report the fabrication of novel Bi2WO6/ZnO heterostructured hybrids for organic contaminant degradation from wastewater and photoelectrochemical (PEC) water splitting upon solar illumination. The Bi2WO6/ZnO photocatalysts were synthesized using a simple and eco-friendly hydrothermal process without the support of any surfactants. From the photocatalytic experiments, heterostructured Bi2WO6/ZnO nanohybrid catalysts exhibited considerably better photocatalytic performance for rhodamine B (RhB) degradation under solar illumination. The BWZ-20 nanocomposite demonstrated superior photodegradation of RhB dye up to 99% in about 50 min. Furthermore, BWZ-20 photoelectrode showeda lower charge-transfer resistance than other samples prepared, suggesting its suitability for PEC water splitting. The photocurrent densities of Bi2WO6/ZnO photoelectrodes were evaluated under the solar irradiation. The BWZ-20 photoelectrode exhibited a significant photocurrent density (0.45 × 10-3A/cm2) at +0.3 V vs. Ag/AgCl, which was~1036-times higher than that of pure Bi2WO6, and ~4.8-times greater than the pure ZnO. Such improved photocatalytic and PEC activities are mainly attributed to the formation of an interface between ZnO and Bi2WO6, superior light absorption ability, low charge-transfer resistance, remarkable production of charge carriers, easy migration of charges, and suppression of the recombination of photogenerated charge carriers.
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Affiliation(s)
| | - Bathula Babu
- School of Mechanical Engineering, Yeungnam University, Gyeongsan, 712-749, Republic of Korea
| | - Ch Venkata Reddy
- School of Mechanical Engineering, Yeungnam University, Gyeongsan, 712-749, Republic of Korea.
| | - I Neelakanta Reddy
- School of Mechanical Engineering, Yeungnam University, Gyeongsan, 712-749, Republic of Korea
| | - Kakarla Raghava Reddy
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW, 2006, Australia.
| | - M C Rao
- Department of Physics, Andhra Loyola College, Vijayawada, 520 008, Andhra Pradesh, India
| | - Tejraj M Aminabhavi
- Department of Pharmaceutics, SETs' College of Pharmacy, Dharwad, 580 007, Karnataka, India.
| | - Migyung Cho
- School of Information Engineering, Tongmyong University, Busan, 608-711, Republic of Korea
| | - Dongseob Kim
- Aircraft System Technology Group, Korea Institute of Industrial Technology, Gyeongbuk-do, 38822, Republic of Korea
| | - Jaesool Shim
- School of Mechanical Engineering, Yeungnam University, Gyeongsan, 712-749, Republic of Korea.
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18
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Fuentez-Torres MO, Ortiz-Chi F, Espinosa-González CG, Aleman M, Cervantes-Uribe A, Torres-Torres JG, Kesarla MK, Collins-Martínez V, Godavarthi S, Martínez-Gómez L. Facile Synthesis of Zn Doped g-C3N4 for Enhanced Visible Light Driven Photocatalytic Hydrogen Production. Top Catal 2020. [DOI: 10.1007/s11244-020-01298-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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19
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Kumar A, Kumari A, Sharma G, Du B, Naushad M, Stadler FJ. Carbon quantum dots and reduced graphene oxide modified self-assembled S@C3N4/B@C3N4 metal-free nano-photocatalyst for high performance degradation of chloramphenicol. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2019.112356] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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20
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Li J, Qi Y, Mei Y, Ma S, Li Q, Xin B, Yao T, Wu J. Construction of phosphorus-doped carbon nitride/phosphorus and sulfur co-doped carbon nitride isotype heterojunction and their enhanced photoactivity. J Colloid Interface Sci 2020; 566:495-504. [PMID: 32058102 DOI: 10.1016/j.jcis.2020.01.102] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 01/05/2020] [Accepted: 01/25/2020] [Indexed: 10/25/2022]
Abstract
Photocatalysis was one of the most promising techniques for environmental remediation. Exploring photocatalysts with high efficiency, low cost and easy preparation was still an ongoing issue. In this work, phosphorus-doped carbon nitride/phosphorus and sulfur co-doped carbon nitride (P-C3N4/PS-C3N4) isotype heterojunction was prepared by a two-step calcination method. The composite displayed a sheet-like structure with a surface area of 23 m2/g. Compared with pure C3N4, band gaps of P-C3N4 and PS-C3N4 were only slightly modified during the heteroatom-doping process. Therefore, a well-matched band alignment was constructed, which not only improved the separation efficiency of photogenerated electron-hole pairs, but also well preserved the high oxidizability of holes on valance band and good reducibility of electrons on conduction band. Because of the similarity in physicochemical properties, the interface resistance between P-C3N4 and PS-C3N4 was low, which accelerated the electron transfer and prolonged the lifetime of charge carriers. Although the visible-light utilization was somewhat low in comparison with P-C3N4 and PS-C3N4, by taking advantage of above merits, P-C3N4/PS-C3N4 displayed the high photocatalytic activity in rhodamine B degradation, and the reaction rate constant was 0.183 min-1, about 8.7 and 4.0 times higher than those of P-C3N4 and PS-C3N4. Besides high catalytic activity, isotype heterojunction displayed good recyclability, since 95.3% of catalytic activity was maintained after the 5th cycle. The method presented here was facile, economic and environmentally benign, thus it was highly attractive for the application in environmental remediation.
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Affiliation(s)
- Jiaqi Li
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin, China
| | - Yi Qi
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin, China
| | - Yuqing Mei
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin, China
| | - Shouchun Ma
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, China
| | - Qi Li
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin, China
| | - Baifu Xin
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin, China.
| | - Tongjie Yao
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, China.
| | - Jie Wu
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin, China.
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21
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Reddy NR, Bharagav U, Kumari MM, Cheralathan KK, Shankar MV, Reddy KR, Saleh TA, Aminabhavi TM. Highly efficient solar light-driven photocatalytic hydrogen production over Cu/FCNTs-titania quantum dots-based heterostructures. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 254:109747. [PMID: 31704644 DOI: 10.1016/j.jenvman.2019.109747] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 10/16/2019] [Accepted: 10/20/2019] [Indexed: 05/06/2023]
Abstract
The need for clean and eco-friendly energy sources has increased enormously over the years due to adverse impacts caused by the detrimental fossil fuel energy sources on the environment. This work reports the safest and most efficient route for hydrogen generation using solar light receptive functionalized carbon nanotubes-titania quantum dots (FCNT-TQDs) as photocatalysts under the influence of solar light irradiation. Predominantly, dual capability of CNT as co-catalyst and photo-sensitizer reduced the recombination rate of charge carriers, and facilitated the efficient light harvesting. The bulk production of hydrogen via water harvesting is considered, wherein photocatalyst synthesized was tuned by the optimum addition of copper to achieve higher production rate of hydrogen up to 54.4 mmol h-1g-1, nearly 25-folds higher than that of pristine TiO2 quantum dots. Addition of copper has a crucial role in improving the rate of hydrogen generation. The ternary composite exhibited 5.4-times higher hydrogen production compared to FCNT-TQDs composite.
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Affiliation(s)
- N Ramesh Reddy
- Nanocatalysis and Solar Fuels Research Lab, Department of Materials Science &Nanotechnology, Yogi Vemana University, Kadapa, 516 005, Andhra Pradesh, India
| | - U Bharagav
- Nanocatalysis and Solar Fuels Research Lab, Department of Materials Science &Nanotechnology, Yogi Vemana University, Kadapa, 516 005, Andhra Pradesh, India
| | - M Mamatha Kumari
- Nanocatalysis and Solar Fuels Research Lab, Department of Materials Science &Nanotechnology, Yogi Vemana University, Kadapa, 516 005, Andhra Pradesh, India.
| | - K K Cheralathan
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology (VIT), Vellore, 632014, Tamil Nadu, India
| | - M V Shankar
- Nanocatalysis and Solar Fuels Research Lab, Department of Materials Science &Nanotechnology, Yogi Vemana University, Kadapa, 516 005, Andhra Pradesh, India
| | - Kakarla Raghava Reddy
- The School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Tawfik A Saleh
- Chemistry Department, King Fahd University of Petroleum & Minerals, B.O. Box: 346, Dhahran, 31261, Saudi Arabia
| | - Tejraj M Aminabhavi
- Pharmaceutical Engineering, Soniya College of Pharmacy, Dharwad, 580 002, India.
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22
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Wang Y, Zhao R, Wang F, Liu Y, Yu X, Chen L, Yao Y, Lu S, Liao X. Ultralow-temperature synthesis of small Ag-doped carbon nitride for nitrogen photofixation. Catal Sci Technol 2020. [DOI: 10.1039/d0cy01532f] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A low-temperature-reduction–deposition method is used to prepare homogeneously dispersed Ag0/g-C3N4 for efficient N2 photofixation.
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Affiliation(s)
- Yingzhi Wang
- College of Chemical Engineering and Materials Science
- Tianjin University of Science and Technology
- Tianjin
- China
| | - Rui Zhao
- College of Chemical Engineering and Materials Science
- Tianjin University of Science and Technology
- Tianjin
- China
| | - Fan Wang
- College of Chemical Engineering and Materials Science
- Tianjin University of Science and Technology
- Tianjin
- China
| | - Yong Liu
- Department of Chemical Engineering
- University of New Hampshire
- Durham
- USA
| | - Xiaohu Yu
- Institute of Theoretical and Computational Chemistry
- Shaanxi Key Laboratory of Catalysis
- School of Chemical & Environment Sciences
- Shaanxi University of Technology
- Hanzhong
| | - Lungang Chen
- Key Laboratory of Renewable Energy
- Chinese Academy of Sciences
- Guangzhou
- China
| | - Yue Yao
- College of Chemical Engineering and Materials Science
- Tianjin University of Science and Technology
- Tianjin
- China
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization
| | - Shuxiang Lu
- College of Chemical Engineering and Materials Science
- Tianjin University of Science and Technology
- Tianjin
- China
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization
| | - Xiaoyuan Liao
- College of Chemical Engineering and Materials Science
- Tianjin University of Science and Technology
- Tianjin
- China
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