1
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Verma A, Fu YP. The prospect of Cu xO-based catalysts in photocatalysis: From pollutant degradation, CO 2 reduction, and H 2 production to N 2 fixation. ENVIRONMENTAL RESEARCH 2024; 241:117656. [PMID: 37980987 DOI: 10.1016/j.envres.2023.117656] [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: 04/10/2023] [Revised: 10/30/2023] [Accepted: 11/11/2023] [Indexed: 11/21/2023]
Abstract
The topic of photocatalysis and CuxO-based materials has been intertwined for quite a long time. Its relatively high abundance in the earth's crust makes it an important target for researchers around the globe. One of the properties exploited by researchers is its ability to exist in different oxidation states (Cu0, Cu+, Cu2+, and Cu3+) and its implications on photocatalytic efficiency improvement. Recently, they have been extensively used as photocatalytic materials for dye and pollutant degradation. However, it has almost reached saturation levels, therefore, currently, they are being mostly utilized for CO2 reduction and H2 evolution. Hence, this review will discuss the evolution (in application) of CuxO-based photocatalysts, relating to their past, present, and future. Moreover, photocatalytic efficiency improvement strategies such as doping, heterojunction formation, and carbonaceous construction with other materials will also be touched upon. Finally, the prospect of Cu2O-based photocatalysts will be discussed in the field of photocatalytic N2 fixation to ammonia. The significance of N2 chemisorption on photocatalysts to maximize ammonia production will also be given importance.
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Affiliation(s)
- Atul Verma
- Department of Materials Science and Engineering, National Dong Hwa University, Shou-Feng, Hualien 97401, Taiwan
| | - Yen-Pei Fu
- Department of Materials Science and Engineering, National Dong Hwa University, Shou-Feng, Hualien 97401, Taiwan
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2
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p-n heterojunction constructed by γ-Fe 2O 3 covering CuO with CuFe 2O 4 interface for visible-light-driven photoelectrochemical water oxidation. J Colloid Interface Sci 2023; 639:464-471. [PMID: 36827912 DOI: 10.1016/j.jcis.2023.02.042] [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: 11/15/2022] [Revised: 01/20/2023] [Accepted: 02/09/2023] [Indexed: 02/13/2023]
Abstract
Fe2O3 is a promising n-type semiconductor as the photoanode of photoelectrochemical water-splitting method due to its abundance, low cost, environment-friendly, and high chemical stability. However, the recombination of photogenerated holes and electrons leads to low solar-to-hydrogen efficiency. In this work, to overcome the recombination issue, a p-type semiconductor, CuO, is introduced underneath the γ-Fe2O3 to synthesize γ-Fe2O3/CuO on the FTO substrate. Along with the formation of p-n heterojunction, CuFe2O4 is in situ generated at the interface of γ-Fe2O3 and CuO. The existence of Cu2O in CuO and CuFe2O4 promotes the charge transfer from CuO to γ-Fe2O3 and within CuFe2O4, respectively, resulting in creating an internal electric field in γ-Fe2O3/CuO and leading to the conduction band of CuO bending up and γ-Fe2O3 bending down. Additionally, Cu(II) in CuFe2O4 contributes to fast electron capture. Consequently, the charge transfer efficiency and charge separation efficiency of photo-generated holes are promoted. Hence, γ-Fe2O3/CuO exhibits an enhanced photocurrent density of 13.40 mA cm-2 (1.9 times higher than γ-Fe2O3). The photo corrosion resistance of CuO is dramatically increased with the protection of CuFe2O4, resulting in superior high chemical stability, i.e. 85% of the initial activity remains after a long-term test.
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3
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Asadinamin M, Živkovic A, Ullrich S, Meyer H, Zhao Y. Charge Dynamics of a CuO Thin Film on Picosecond to Microsecond Timescales Revealed by Transient Absorption Spectroscopy. ACS APPLIED MATERIALS & INTERFACES 2023; 15:18414-18426. [PMID: 36995362 PMCID: PMC10103062 DOI: 10.1021/acsami.2c22595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 03/21/2023] [Indexed: 06/19/2023]
Abstract
Understanding the mechanism of charge dynamics in photocatalysts is the key to design and optimize more efficient materials for renewable energy applications. In this study, the charge dynamics of a CuO thin film are unraveled via transient absorption spectroscopy (TAS) on the picosecond to microsecond timescale for three different excitation energies, i.e., above, near, and below the band gap, to explore the role of incoherent broadband light sources. The shape of the ps-TAS spectra changes with the delay time, while that of the ns-TAS spectra is invariant for all the excitation energies. Regardless of the excitations, three time constants, τ1 ∼ 0.34-0.59 ps, τ2 ∼ 162-175 ns, and τ3 ∼ 2.5-3.3 μs, are resolved, indicating the dominating charge dynamics at very different timescales. Based on these observations, the UV-vis absorption spectrum, and previous findings in the literature, a compelling transition energy diagram is proposed. Two conduction bands and two defect (deep and shallow) states dominate the initial photo-induced electron transitions, and a sub-valence band energy state is involved in the subsequent transient absorption. By solving the rate equations for the pump-induced population dynamics and implementing the assumed Lorentzian absorption spectral shape between two energy states, the TAS spectra are modeled which capture the main spectral and time-dependent features for t > 1 ps. By further considering the contributions from free-electron absorption during very early delay times, the modeled spectra reproduce the experimental spectra very well over the entire time range and under different excitation conditions.
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Affiliation(s)
- Mona Asadinamin
- Department
of Physics and Astronomy, University of
Georgia, Athens, Georgia 30602, United States
| | - Aleksandar Živkovic
- Department
of Earth Sciences, Utrecht University, Princetonlaan 8a, 3548 CB Utrecht, The Netherlands
| | - Susanne Ullrich
- Department
of Physics and Astronomy, University of
Georgia, Athens, Georgia 30602, United States
| | - Henning Meyer
- Department
of Physics and Astronomy, University of
Georgia, Athens, Georgia 30602, United States
| | - Yiping Zhao
- Department
of Physics and Astronomy, University of
Georgia, Athens, Georgia 30602, United States
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4
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Manny Porto Barros M, Costa Almeida KJ, Vinicius Sousa Conceição M, Henrique Pereira D, Botelho G. Photodegradation of bisphenol A by ZnS combined with H2O2: Evaluation of photocatalytic activity, reaction parameters, and DFT calculations. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2022.121096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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5
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Polymeric organic–inorganic C3N4/ZnO high-performance material for visible light photodegradation of organic pollutants. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04551-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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6
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A novel alginate/PVA hydrogel -supported Fe3O4 particles for efficient heterogeneous Fenton degradation of organic dyes. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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7
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Lian Q, Zheng X, Peng G, Liu Z, Chen L, Wu S. Oxidase mimicking of CuMnO2 nanoflowers and the application in colorimetric detection of ascorbic acid. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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8
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Sun S, Tang Q, Zhou L, Gao Y, Zhang W, Liu W, Jiang C, Wan J, Zhou L, Xie M. Exploring the photocatalytic inactivation mechanism of Microcystis aeruginosa under visible light using Ag 3PO 4/g-C 3N 4. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:29993-30003. [PMID: 34997489 DOI: 10.1007/s11356-021-17857-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Accepted: 11/26/2021] [Indexed: 06/14/2023]
Abstract
In this work, a series of Ag3PO4/g-C3N4 (AG) photocatalysts were synthesized. After characterizing the properties, the effects of mass ratio, light intensity, and material dosages on photodegradation were investigated. The material with a 1/2 mass ratio of Ag3PO4/g-C3N4 showed the highest photocatalytic activity under visible light, and the removal efficiency reached 90.22% for an initial suspended algae concentration of 2.7 × 106 cells/mL, 0.1 g of AG, and 3 h of irradiation. These results showed that the conductivity was increased while the total protein and COD contents of the algae suspension were declined rapidly. In contrast, the variations in the malondialdehyde (MDA) level suggested that the algae cell wall was severely damaged and that selective permeability of the membrane was significantly affected. A possible photocatalytic mechanism was proposed and •O2- was shown to be the major reactive oxygen species in the photocatalysis. In summary, during the visible light photocatalytic process, the cell structure was destroyed, which caused the leakage of electrolyte, the inactivation of protein, and the inhibition of photosynthesis; finally, the cells died. This study provides a reference for photodegradation of algae pollution in water bodies.
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Affiliation(s)
- Shiquan Sun
- School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha, 410114, China.
- Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha, 410114, China.
| | - Qingxin Tang
- School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha, 410114, China
| | - Lean Zhou
- School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha, 410114, China
- Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha, 410114, China
| | - Yang Gao
- School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha, 410114, China
- Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha, 410114, China
| | - Wei Zhang
- School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha, 410114, China
- Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha, 410114, China
| | - Wang Liu
- School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha, 410114, China
| | - Changbo Jiang
- School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha, 410114, China
- Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha, 410114, China
| | - Junli Wan
- School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha, 410114, China
- Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha, 410114, China
| | - Lu Zhou
- School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha, 410114, China
- Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha, 410114, China
| | - Min Xie
- School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha, 410114, China
- Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha, 410114, China
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9
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Covaliu-Mierlă CI, Matei E, Stoian O, Covaliu L, Constandache AC, Iovu H, Paraschiv G. TiO2–Based Nanofibrous Membranes for Environmental Protection. MEMBRANES 2022; 12:membranes12020236. [PMID: 35207157 PMCID: PMC8875440 DOI: 10.3390/membranes12020236] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 02/04/2022] [Accepted: 02/10/2022] [Indexed: 11/16/2022]
Abstract
Electrospinning is a unique technique that can be used to synthesize polymer and metal oxide nanofibers. In materials science, a very active field is represented by research on electrospun nanofibers. Fibrous membranes present fascinating features, such as a large surface area to volume ratio, excellent mechanical behavior, and a large surface area, which have many applications. Numerous techniques are available for the nanofiber’s synthesis, but electrospinning is presented as a simple process that allows one to obtain porous membranes containing smooth non-woven nanofibers. Titanium dioxide (TiO2) is the most widely used catalyst in photocatalytic degradation processes, it has advantages such as good photocatalytic activity, excellent chemical stability, low cost and non-toxicity. Thus, titanium dioxide (TiO2) is used in the synthesis of nanofibrous membranes that benefit experimental research by easy recyclability, excellent photocatalytic activity, high specific surface areas, and exhibiting stable hierarchical nanostructures. This article presents the synthesis of fiber membranes through the processes of electrospinning, coaxial electrospinning, electrospinning and electrospraying or electrospinning and precipitation. In addition to the synthesis of membranes, the recent progress of researchers emphasizing the efficiency of nanofiber photocatalytic membranes in removing pollutants from wastewater is also presented.
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Affiliation(s)
- Cristina Ileana Covaliu-Mierlă
- Department of Biotechnical Systems, Faculty of Biotechnical Systems Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania; (C.I.C.-M.); (O.S.); (L.C.); (A.-C.C.); (G.P.)
| | - Ecaterina Matei
- Department of Biotechnical Systems, Faculty of Biotechnical Systems Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania; (C.I.C.-M.); (O.S.); (L.C.); (A.-C.C.); (G.P.)
- Correspondence: ; Tel.: +40-72-454-3926
| | - Oana Stoian
- Department of Biotechnical Systems, Faculty of Biotechnical Systems Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania; (C.I.C.-M.); (O.S.); (L.C.); (A.-C.C.); (G.P.)
| | - Leon Covaliu
- Department of Biotechnical Systems, Faculty of Biotechnical Systems Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania; (C.I.C.-M.); (O.S.); (L.C.); (A.-C.C.); (G.P.)
| | - Alexandra-Corina Constandache
- Department of Biotechnical Systems, Faculty of Biotechnical Systems Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania; (C.I.C.-M.); (O.S.); (L.C.); (A.-C.C.); (G.P.)
| | - Horia Iovu
- Advanced Polymer Materials Group, University Politehnica of Bucharest, 132 Calea Grivitei, 010737 Bucharest, Romania;
| | - Gigel Paraschiv
- Department of Biotechnical Systems, Faculty of Biotechnical Systems Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania; (C.I.C.-M.); (O.S.); (L.C.); (A.-C.C.); (G.P.)
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10
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Jin X, Lou Y, Zhang X, Wang B, Zhu Y, Gu X, Ding S, Ma J. Broccoli-liked silver phosphate nanoparticles supported on green nanofiber membrane for visible-light driven photodegradation towards water pollutants. NANOTECHNOLOGY 2022; 33:185703. [PMID: 35073520 DOI: 10.1088/1361-6528/ac4e42] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 01/24/2022] [Indexed: 06/14/2023]
Abstract
In view of the practical application, it is imperative to develop efficient, exercisable, and visible light driven water pollution treatment materials. Herein, a high-efficiency green photocatalytic membrane for water pollution treatment is proposed and fabricated conveniently. Firstly, silver phosphate (Ag3PO4) nanoparticles with controlled morphology were prepared by simple liquid-phase precipitation method, and then a hierarchical structured Ag3PO4@polylactic acid (PLA) composite nanofiber membrane was prepared by electrospinning. Using electrospun PLA nanofiber membrane as a carrier of photocatalysts can significantly improve the dispersion of Ag3PO4nanoparticles, and increase the contact probability with pollutants and photocatalytic activity. The prepared PLA@Ag3PO4composite membrane was used to degrade methylene blue (MB) and tetracycline hydrochloride (TC) under visible light irradiation. The results showed that the removal ratio of pollutants on Ag3PO4@PLA composite nanofiber membrane was 94.0% for MB and 82.0% for TC, demonstrating an outstanding photocatalytic activity of composite membrane. Moreover, the PLA nanofiber membrane is a self-supported and biodegradable matrix. After five cycles, it can still achieve 88.0% of the initial photocatalytic degradation rate towards MB, showing excellent recyclability. Thus, this composite nanofiber membrane is a high-efficiency and environmental-friendly visible light driven water pollution treatment material that could be used in real applications.
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Affiliation(s)
- Xu Jin
- School of Materials Design & Engineering, Beijing Institute of Fashion Technology, Beijing 100029, People's Republic of China
| | - Yaoyuan Lou
- School of Materials Design & Engineering, Beijing Institute of Fashion Technology, Beijing 100029, People's Republic of China
| | - Xiuqin Zhang
- School of Materials Design & Engineering, Beijing Institute of Fashion Technology, Beijing 100029, People's Republic of China
- Beijing Key Laboratory of Clothing Materials R & D and Assessment, Beijing Engineering Research Center of Textile Nanofiber, Beijing Institute of Fashion Technology, Beijing 100029, People's Republic of China
| | - Bin Wang
- School of Materials Design & Engineering, Beijing Institute of Fashion Technology, Beijing 100029, People's Republic of China
- Beijing Key Laboratory of Clothing Materials R & D and Assessment, Beijing Engineering Research Center of Textile Nanofiber, Beijing Institute of Fashion Technology, Beijing 100029, People's Republic of China
| | - Yanlong Zhu
- School of Materials Design & Engineering, Beijing Institute of Fashion Technology, Beijing 100029, People's Republic of China
| | - Xiaoxia Gu
- School of Materials Design & Engineering, Beijing Institute of Fashion Technology, Beijing 100029, People's Republic of China
| | - Shanshan Ding
- School of Materials Design & Engineering, Beijing Institute of Fashion Technology, Beijing 100029, People's Republic of China
| | - Jiayu Ma
- School of Materials Design & Engineering, Beijing Institute of Fashion Technology, Beijing 100029, People's Republic of China
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11
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Preparation of SiNWs/rGO/CuO Nanocomposites as Effective Photocatalyst for Degradation of Ciprofloxacin Assisted with Peroxymonosulfate. J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-021-02184-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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12
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Wang L, Lan X, Peng W, Wang Z. Uncertainty and misinterpretation over identification, quantification and transformation of reactive species generated in catalytic oxidation processes: A review. JOURNAL OF HAZARDOUS MATERIALS 2021; 408:124436. [PMID: 33191023 DOI: 10.1016/j.jhazmat.2020.124436] [Citation(s) in RCA: 140] [Impact Index Per Article: 46.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 10/24/2020] [Accepted: 10/29/2020] [Indexed: 06/11/2023]
Abstract
The identification of reactive radical species using quenching and electron paramagnetic resonance (EPR) tests has attracted extensive attention, but some mistakes or misinterpretations are often present in recent literature. This review aims to clarify the corresponding issues through surveying literature, including the uncertainty about the identity of radicals in the bulk solution or adsorbed on the catalyst surface in quenching tests, selection of proper scavengers, data explanation for incomplete inhibition, the inconsistent results between quenching and EPR tests (e.g., SO4•- is predominant in quenching test while the signal of •OH predominates in EPR test), and the incorrect identification of EPR signals (e.g., SO4•- is identified by indiscernible or incorrect signals). In addition, this review outlines the transformation of radicals for better tracing the origin of radicals. It is anticipated that this review can help in avoiding mistakes while investigating catalytic oxidative mechanism with quenching and EPR tests.
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Affiliation(s)
- Lingli Wang
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Xu Lan
- Shanghai Institute of Quality Inspection and Technical Research, 900 Jiangyue Road, Minhang District, Shanghai 201114, China
| | - Wenya Peng
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Zhaohui Wang
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China; Technology Innovation Center for Land Spatial Eco-Restoration in Metropolitan Area, Ministry of Natural Resources, 3663 N. Zhongshan Road, Shanghai 200062, China; Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, Shanghai 200241, China.
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13
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Della Rocca DG, Peralta RM, Peralta RA, Peralta Muniz Moreira RDF. Recent development on Ag2MoO4-based advanced oxidation processes: a review. REACTION KINETICS MECHANISMS AND CATALYSIS 2021. [DOI: 10.1007/s11144-021-01934-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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14
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Cui J, Li F, Wang Y, Zhang Q, Ma W, Huang C. Electrospun nanofiber membranes for wastewater treatment applications. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.117116] [Citation(s) in RCA: 170] [Impact Index Per Article: 42.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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15
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Engineering nanostructures of CuO-based photocatalysts for water treatment: Current progress and future challenges. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2020.06.031] [Citation(s) in RCA: 81] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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16
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A novel CuO–Cu2O/Ag–Ag3PO4 nanocomposite: Synthesis, characterization, and its application for 2-chlorophenol decontamination under visible light. J Taiwan Inst Chem Eng 2020. [DOI: 10.1016/j.jtice.2020.10.030] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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17
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Fabrication of Highly Efficient Bi2Sn2O7/C3N4 Composite with Enhanced Photocatalytic Activity for Degradation of Organic Pollutants. J Inorg Organomet Polym Mater 2020. [DOI: 10.1007/s10904-020-01726-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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18
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Santos R, Martins TA, Silva GN, Conceição MVS, Nogueira IC, Longo E, Botelho G. Ag 3PO 4/NiO Composites with Enhanced Photocatalytic Activity under Visible Light. ACS OMEGA 2020; 5:21651-21661. [PMID: 32905253 PMCID: PMC7469368 DOI: 10.1021/acsomega.0c02456] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 07/31/2020] [Indexed: 05/05/2023]
Abstract
Black NiO powders were prepared by a hydrothermal method. Moreover, the visible light-driven Ag3PO4/NiO photocatalyst composites were successfully synthesized by in situ precipitation method. These samples were structurally characterized by X-ray diffraction and Rietveld refinement. The strong interaction between the phases and the defects in the samples was affected by the formation of the composites, as identified by Fourier transform infrared spectroscopy and Raman spectroscopy. UV-vis diffuse reflectance spectroscopy exhibited enhanced light absorption for all Ag3PO4/NiO composites, suggesting the effective interaction between the phases. Moreover, field-emission scanning electron microscopy images revealed the presence of NiO microflowers composed of nanoflakes in contact with Ag3PO4 microparticles. The composite with 5% NiO presented enhanced photocatalytic efficiency in comparison with pure Ag3PO4, degrading 96% of rhodamine B (RhB) dye in just 15 min under visible light; however, the recycling experiments confirmed that the composite with 75% NiO showed superior stability. The recombination of the electron-hole pairs was considered for the measurement of the photoluminescence of the samples. These measurements were performed to evaluate the possible causes for the difference in the photocatalytic responses of the composites. From these experimental results, possible photocatalytic mechanisms for RhB degradation over Ag3PO4/NiO composites under visible-light irradiation were proposed.
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Affiliation(s)
- Ricardo
K. Santos
- Department
of Environmental Chemistry, Federal University
of Tocantins, Gurupi, Tocantins 77402-970, Brazil
| | - Tiago A. Martins
- CDMF-UFSCar, Federal University of São Carlos, São Carlos, São
Paulo 13565-905, Brazil
| | - Gabriela N. Silva
- Department
of Environmental Chemistry, Federal University
of Tocantins, Gurupi, Tocantins 77402-970, Brazil
| | - Marcus V. S. Conceição
- Department
of Environmental Chemistry, Federal University
of Tocantins, Gurupi, Tocantins 77402-970, Brazil
| | - Içamira C. Nogueira
- Department
of Physics, Federal University of Amazonas, Manaus, Amazonas 69077-000, Brazil
| | - Elson Longo
- CDMF-UFSCar, Federal University of São Carlos, São Carlos, São
Paulo 13565-905, Brazil
| | - Gleice Botelho
- Department
of Environmental Chemistry, Federal University
of Tocantins, Gurupi, Tocantins 77402-970, Brazil
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19
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Microwave-assisted synthesis of high efficient α-Fe2O3/BiOI composites and its performance in photocatalytic degardation of organic pollutants. ADV POWDER TECHNOL 2020. [DOI: 10.1016/j.apt.2020.03.025] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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20
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Shang J, Xiao Z, Yu L, Aprea P, Hao S. An insight on the role of PVP in the synthesis of monoclinic WO 3 with efficiently photocatalytic activity. NANOTECHNOLOGY 2020; 31:125603. [PMID: 31775127 DOI: 10.1088/1361-6528/ab5c4f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Nanoparticles of monoclinic WO3 were synthesized by a facile method using Na2WO4 as raw material and PVP 70 000 (polyvinylpyrrolidone) as surfactant and template. The effect of PVP on the structure and photocatalytic activity of the synthesized WO3 was discussed in detail. The prepared samples were characterized by XRD, SEM, FT-IR, UV-vis, XPS, PL techniques, and the results show that the visible light is strongly absorbed by the obtained samples, whose particle size varies from 38 to 85 nm. The photocatalytic properties of the resulted samples were evaluated using RhB in water as a target substance, and results illustrate that 30 mg l-1 of RhB can be efficiently photodegraded by nano WO3 under visible light irradiation. Based on the results of XPS, PL and photocalysis experiments, the reason of such improved photocatalytic efficiency may be attributed to the reducing activity of PVP, which leads to the formation of oxygen vacancies beneficial for the capture of photoelectrons and the generation of superoxide radicals. Furthermore, the results show that the photocatalytic efficiency is greatly influenced by the morphology of the synthesized WO3 samples, and the WO3 with a block-shaped morphology is an ideal photocatalyst for the degradation of RhB under visible light irradiation.
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Affiliation(s)
- Juan Shang
- Xingzhi College, College of Chemistry and Life Sciences, Zhejiang Normal University, 321004 Jinhua, People's Republic of China
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21
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Yu C, Wen M, Tong Z, Li S, Yin Y, Liu X, Li Y, Liang T, Wu Z, Dionysiou DD. Synthesis and enhanced photocatalytic performance of 0D/2D CuO/tourmaline composite photocatalysts. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2020; 11:407-416. [PMID: 32215227 PMCID: PMC7082706 DOI: 10.3762/bjnano.11.31] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Accepted: 02/11/2020] [Indexed: 06/10/2023]
Abstract
Photocatalysis is considered to be a green and promising technology for transforming organic contaminants into nontoxic products. In this work, a CuO/tourmaline composite with zero-dimensional/two-dimensional (0D/2D) CuO architecture was successfully obtained via a facile hydrothermal process, and its photocatalytic activity was evaluated by the degradation of methylene blue (MB). Surface element valence state and molecular vibration characterization revealed that CuO chemically interacted with tourmaline via Si-O-Cu bonds. The specific surface area of the CuO/tourmaline composite (23.60 m2 g-1) was larger than that of the pristine CuO sample (3.41 m2 g-1). The CuO/tourmaline composite exhibited excellent photocatalytic activity for the degradation of MB, which was ascribed to the increase in the quantity of the adsorption-photoreactive sites and the efficient utilization of the photoinduced charge carriers. This study provides a facile strategy for the construction of 0D/2D CuO structures and the design of tourmaline-based functional composite photocatalysts for the treatment of organic contaminants in water.
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Affiliation(s)
- Changqiang Yu
- School of Materials Science and Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Min Wen
- School of Materials Science and Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Zhen Tong
- School of Materials Science and Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Shuhua Li
- School of Materials Science and Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Yanhong Yin
- School of Materials Science and Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China
- Environmental Engineering and Science Program, Department of Chemical and Environmental Engineering, University of Cincinnati, Cincinnati, OH 45221, USA
- Chongyi Zhangyuan Tungsten Co., Ltd., Ganzhou 341000, China
| | - Xianbin Liu
- School of Materials Science and Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Yesheng Li
- School of Materials Science and Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Tongxiang Liang
- School of Materials Science and Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Ziping Wu
- School of Materials Science and Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Dionysios D Dionysiou
- Environmental Engineering and Science Program, Department of Chemical and Environmental Engineering, University of Cincinnati, Cincinnati, OH 45221, USA
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22
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Zhao D, Cai C. Adsorption and photocatalytic degradation of pollutants on Ce-doped MIL-101-NH2/Ag3PO4 composites. CATAL COMMUN 2020. [DOI: 10.1016/j.catcom.2019.105910] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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23
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Guan R, Li J, Zhang J, Zhao Z, Wang D, Zhai H, Sun D. Photocatalytic Performance and Mechanistic Research of ZnO/g-C 3N 4 on Degradation of Methyl Orange. ACS OMEGA 2019; 4:20742-20747. [PMID: 31858060 PMCID: PMC6906941 DOI: 10.1021/acsomega.9b03129] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 11/15/2019] [Indexed: 06/10/2023]
Abstract
Highly dispersed ZnO/g-C3N4 composites with different doping ratios of g-C3N4 were prepared by a hydrothermal method. The preparation method is simple and the energy consumption is low. The composite samples were used to degradate the methyl orange solution. They all showed excellent photocatalytic activity and cycling stability. The optimal loading content of g-C3N4 was investigated, and the mechanism of enhanced photocatalytic activity was studied in detail. This study provides a promising photocatalytic material for the removal of organic pollutants.
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Affiliation(s)
- Renquan Guan
- Key
Laboratory of Preparation and Applications of Environmental Friendly
Materials of the Ministry of Education and Key Laboratory of Functional Materials
Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, China
- College
of Chemistry, Jilin Normal University, Siping 136000, China
| | - Jiaxin Li
- Key
Laboratory of Preparation and Applications of Environmental Friendly
Materials of the Ministry of Education and Key Laboratory of Functional Materials
Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, China
| | - Junkai Zhang
- Key
Laboratory of Preparation and Applications of Environmental Friendly
Materials of the Ministry of Education and Key Laboratory of Functional Materials
Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, China
| | - Zhao Zhao
- Key
Laboratory of Preparation and Applications of Environmental Friendly
Materials of the Ministry of Education and Key Laboratory of Functional Materials
Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, China
| | - Dandan Wang
- Key
Laboratory of Preparation and Applications of Environmental Friendly
Materials of the Ministry of Education and Key Laboratory of Functional Materials
Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, China
| | - Hongju Zhai
- Key
Laboratory of Preparation and Applications of Environmental Friendly
Materials of the Ministry of Education and Key Laboratory of Functional Materials
Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, China
- College
of Chemistry, Jilin Normal University, Siping 136000, China
| | - Dewu Sun
- Key
Laboratory of Preparation and Applications of Environmental Friendly
Materials of the Ministry of Education and Key Laboratory of Functional Materials
Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, China
- College
of Chemistry, Jilin Normal University, Siping 136000, China
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24
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Duan Y, Yao H, Li J, Shang X, Jia D, Li C. A facile one-pot preparation of Bi 2O 2CO 3/g-C 3N 4 composites with enhanced photocatalytic activity. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2019; 79:1494-1502. [PMID: 31169507 DOI: 10.2166/wst.2019.146] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Bi2O2CO3 modified graphitic carbon nitride (g-C3N4) nanosheets were prepared by a simple one-pot synthetic strategy. In the presence of ammonium nitrate, different mass ratios of bismuth nitrate/melamine were used to fabricate these catalysts, which were characterized by X-ray diffraction (XRD), N2-physisorption, Fourier transform infrared spectroscopy (FT-IR), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), UV-vis analysis, and photoluminescence (PL). The catalytic properties of composites were evaluated by photodegrading tetracycline hydrochloride (TC) under visible light irradiation. Among these catalysts, Bi2O2CO3(1.5)/g-C3N4 showed the highest catalytic activity, which was more than 16 times greater than the pristine g-C3N4 material. The improved photocatalytic properties of Bi2O2CO3/g-C3N4 may be due to the formation of a heterojunction between Bi2O2CO3 and g-C3N4, leading to the effective separation of photo-induced carriers and the enhanced absorption of visible light. Furthermore, the Bi2O2CO3/g-C3N4 composites had considerable catalytic stability, which was a key element for their potential applications.
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Affiliation(s)
- Yongzheng Duan
- Department of Chemical Engineering and Safety, Binzhou University, Binzhou 256603, China and Engineering Research Center for Wastewater Resource of Shandong Province, Binzhou 256603, China E-mail:
| | - Haibo Yao
- Department of Chemical Engineering and Safety, Binzhou University, Binzhou 256603, China and Engineering Research Center for Wastewater Resource of Shandong Province, Binzhou 256603, China E-mail:
| | - Jing Li
- Department of Chemical Engineering and Safety, Binzhou University, Binzhou 256603, China and Engineering Research Center for Wastewater Resource of Shandong Province, Binzhou 256603, China E-mail:
| | - Xili Shang
- Department of Chemical Engineering and Safety, Binzhou University, Binzhou 256603, China and Engineering Research Center for Wastewater Resource of Shandong Province, Binzhou 256603, China E-mail:
| | - Dongmei Jia
- Department of Chemical Engineering and Safety, Binzhou University, Binzhou 256603, China and Engineering Research Center for Wastewater Resource of Shandong Province, Binzhou 256603, China E-mail:
| | - Changhai Li
- Department of Chemical Engineering and Safety, Binzhou University, Binzhou 256603, China and Engineering Research Center for Wastewater Resource of Shandong Province, Binzhou 256603, China E-mail:
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He D, Wu X, Chen Y, Situ Y, Zhong L, Huang H. In-situ growth of lepidocrocite on Bi 2O 3 rod: A perfect cycle coupling photocatalysis and heterogeneous fenton-like process by potential-level matching with advanced oxidation. CHEMOSPHERE 2018; 210:334-340. [PMID: 30007187 DOI: 10.1016/j.chemosphere.2018.06.142] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 06/10/2018] [Accepted: 06/22/2018] [Indexed: 06/08/2023]
Abstract
γ-FeOOH was grown in situ on the surface of rod Bi2O3 to construct a perfect cycle coupling photocatalysis and heterogeneous Fenton-like process. The degradation efficiency of this system was detected under the irradiation of visible light. γ-FeOOH/Bi2O3 showed better degradation efficiency than pure Bi2O3 and γ-FeOOH, and the amount of TOC was decreased to 4.3, suggesting that the system exhibits outstanding oxidation ability that MO and phenol could be degraded to CO2 and H2O totally. PL spectra, trapping experiments and ESR test were also carried out to confirm the mechanism of photocatalysis with heterogeneous Fenton-like process, and the suitable conduction band (CB) of Bi2O3 matches the electric potential of iron ions was proved to be the key to keep the perfect cycle. Then optimal concentration of H2O2, the effect of pH and the stability of the photocatalyst were also investigated.
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Affiliation(s)
- Donglin He
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, PR China
| | - Xiaojuan Wu
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, PR China
| | - Yanfeng Chen
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, PR China.
| | - Yue Situ
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, PR China
| | - Li Zhong
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, PR China
| | - Hong Huang
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, PR China.
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26
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Zhou T, Zhang G, Yang H, Zhang H, Suo R, Xie Y, Liu G. Fabrication of Ag 3PO 4/GO/NiFe 2O 4 composites with highly efficient and stable visible-light-driven photocatalytic degradation of rhodamine B. RSC Adv 2018; 8:28179-28188. [PMID: 35542723 PMCID: PMC9084322 DOI: 10.1039/c8ra02962h] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Accepted: 07/19/2018] [Indexed: 12/23/2022] Open
Abstract
Effective visible-light-driven Ag3PO4/GO/NiFe2O4 Z-scheme magnetic composites were successfully fabricated by a simple ion-exchange deposition method. The Ag3PO4/GO/NiFe2O4 (8%) composite exhibited excellent photocatalytic activity (degradation efficiency was ∼96% within 15 min and kinetic constant reached 0.1956 min-1) and stability when compared to Ag3PO4, NiFe2O4, and Ag3PO4/NiFe2O4 for rhodamine B (RhB) degradation. Furthermore, by electrochemical and fluorescence measurements, the Ag3PO4/GO/NiFe2O4 (8%) material also showed larger transient photocurrent, lower impedance, and longer fluorescence lifetime (7.82 ns). Comparing the activity result dependence with characterization results, it was indicated that photocatalytic activity depended on fast charge transfer from Ag3PO4 to NiFe2O4 through GO sheet. The h+ and ·O2 - species played important roles in RhB degradation under visible-light. A possible Z-scheme mechanism is proposed over the Ag3PO4/GO/NiFe2O4 (8%) composite. This study might provide a promising visible light responsive photocatalyst for the photocatalytic degradation of organic dyes in wastewater.
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Affiliation(s)
- Tianhong Zhou
- School of Environmental and Municipal Engineering, Lanzhou Jiaotong University Lanzhou 730000 P. R. China
- Research & Development Center for Eco-material and Eco-chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 P. R. China
| | - Guozhen Zhang
- School of Environmental and Municipal Engineering, Lanzhou Jiaotong University Lanzhou 730000 P. R. China
| | - Hao Yang
- School of Environmental and Municipal Engineering, Lanzhou Jiaotong University Lanzhou 730000 P. R. China
| | - Hongwei Zhang
- School of Environmental and Municipal Engineering, Lanzhou Jiaotong University Lanzhou 730000 P. R. China
| | - Ruini Suo
- Research & Development Center for Eco-material and Eco-chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 P. R. China
| | - Yingshuang Xie
- Gansu Import and Export Inspection and Quarantine Bureau Inspection and Quarantine Integrated Technology Center Lanzhou 730000 P. R. China
| | - Gang Liu
- Research & Development Center for Eco-material and Eco-chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 P. R. China
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27
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Zhou T, Zhang G, Zhang H, Yang H, Ma P, Li X, Qiu X, Liu G. Highly efficient visible-light-driven photocatalytic degradation of rhodamine B by a novel Z-scheme Ag3PO4/MIL-101/NiFe2O4 composite. Catal Sci Technol 2018. [DOI: 10.1039/c8cy00182k] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An Ag3PO4/MIL-101/NiFe2O4 composite was fabricated by an in situ precipitation method. The results implied that introduction of the MOF enhanced the rapid transfer of electrons from Ag3PO4 to NiFe2O4.
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Affiliation(s)
- Tianhong Zhou
- School of Environmental and Municipal Engineering
- Lanzhou Jiaotong University
- Lanzhou 730070
- PR China
- Research & Development Center for Eco-material and Eco-chemistry
| | - Guozhen Zhang
- School of Environmental and Municipal Engineering
- Lanzhou Jiaotong University
- Lanzhou 730070
- PR China
| | - Hongwei Zhang
- School of Environmental and Municipal Engineering
- Lanzhou Jiaotong University
- Lanzhou 730070
- PR China
| | - Hao Yang
- School of Environmental and Municipal Engineering
- Lanzhou Jiaotong University
- Lanzhou 730070
- PR China
| | - Pengjun Ma
- Research & Development Center for Eco-material and Eco-chemistry
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- PR China
| | - Xiaoting Li
- Research & Development Center for Eco-material and Eco-chemistry
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- PR China
| | - Xiaoli Qiu
- Research & Development Center for Eco-material and Eco-chemistry
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- PR China
| | - Gang Liu
- Research & Development Center for Eco-material and Eco-chemistry
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- PR China
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