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Chen H, Meng F, Feng X, Zhao Y, Xie T, Wang D, Lin Y. Efficient Photocatalytic Activation of Peroxymonosulfate by Cobalt-Doped Oxygen-Vacancies-Rich BiVO 4 for Rapid Tetracycline Degradation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:12778-12791. [PMID: 38843811 DOI: 10.1021/acs.langmuir.4c01421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2024]
Abstract
In this work, cobalt-doped oxygen-vacancies-rich BiVO4 (Co/BiVO4-Vo) was successfully synthesized for the degradation of tetracycline (TC) by activated peroxymonosulfate (PMS) under visible light. The morphologies, microstructures, and optical properties of the photocatalysts were analyzed in detail. Co/BiVO4-Vo exhibited significantly enhanced degradation, removing 92.3% of TC within 10 min, which was greater than those of pure BiVO4 (62.2%) and oxygen-vacancies-rich BiVO4 (BiVO4-Vo) (72.0%), respectively. The photogenerated charge separation and transport properties were explored through surface photovoltage (SPV), photoluminescence spectrum (PL), and UV-vis diffuse reflectance spectroscopy (UV-vis DRS) measurements. Additionally, an in-depth investigation was conducted on the photocatalytically assisted advanced oxidation processes based on SO4•- (SR-AOPs) for the degradation of organic pollutants. The experimental results showed that the introduction of oxygen vacancies and Co doping achieved an effective separation of photogenerated carriers, which could accelerate the cycling between Co3+ and Co2+ and further activate PMS. The results of free radical capture experiments and electron spin resonance (ESR) experiments showed that reactive oxygen species (ROSs) such as 1O2, •O2-, and SO4•- played a dominant role in the removal of pollutants. This work provides a novel insight into the further development of efficient and rapid PMS photoactivators for environmental remediation of water bodies.
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Affiliation(s)
- Hao Chen
- College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
| | - Fanyu Meng
- College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
| | - Xiao Feng
- College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
| | - Yunhong Zhao
- College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
| | - Tengfeng Xie
- College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
| | - Dejun Wang
- College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
| | - Yanhong Lin
- College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
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Long Z, Guo T, Chen C, Zhang G, Zhu J. Preparation and application of Ag plasmon Bi 3O 4Cl photocatalyst for removal of emerging contaminants under visible light. Front Microbiol 2023; 14:1210790. [PMID: 37362933 PMCID: PMC10289886 DOI: 10.3389/fmicb.2023.1210790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Accepted: 05/23/2023] [Indexed: 06/28/2023] Open
Abstract
Photocatalytic degradation has been extensively investigated toward the removal emerging contaminants (ECs) from water. In this study, a series of Ag-Bi3O4Cl plasmon photocatalysts were synthesized through the photo-deposition of metallic Ag on the Bi3O4Cl surface. The effects of plasmon modification on the catalytic performance of bismuth oxychlorides were analyzed. Ag addition did not alter the morphology of Bi3O4Cl. With the increasing Ag content, the number of oxygen defects on the catalyst surface first increased and then decreased. Moreover, the surface plasmon resonance effect of Ag suppressed the recombination of electron-hole pairs, promoting the migration and separation of photocarriers and improving the light absorption efficiency. However, the addition of excessive Ag reduced the number of active sites on the Bi3O4Cl surface, hindering the catalytic degradation of pollutants. The optimal Ag-Bi3O4Cl photocatalyst (Ag ratio: 0.025; solution pH: 9; dosage: 0.8 g/L) achieved 93.8 and 94.9% removal of ciprofloxacin and tetrabromobisphenol A, respectively. The physicochemical and photoelectric properties of Ag-Bi3O4Cl were determined through various characterization techniques. This study demonstrates that introducing metallic Ag alters the electron transfer path of the catalyst, reduces the recombination rate of electron-hole pairs, and effectively improves the catalytic efficiency of Bi3O4Cl. Furthermore, the pathways of ciprofloxacin degradation products and their biotoxicity were revealed.
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Affiliation(s)
- Zeqing Long
- Department of Public Health and Preventive Medicine, Changzhi Medical College, Changzhi, China
| | - Tingting Guo
- Heping Hospital Affiliated to Changzhi Medical College, Changzhi, China
| | - Chao Chen
- Heping Hospital Affiliated to Changzhi Medical College, Changzhi, China
| | - Guangming Zhang
- School of Energy & Environmental Engineering, Hebei University of Technology, Tianjin, China
| | - Jia Zhu
- School of Materials and Environmental Engineering, Shenzhen Polytechnic, Shenzhen, China
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Tu L, Rong Y, Yu Z, Chen S, Sun J, Li Z, Li J, Hou Y. Chlortetracycline degradation performance and mechanism in the self-biased bio-photoelectrochemical system constructed with an oxygen-defect-rich BiVO 4/Ni 9S 8 photoanode. CHEMOSPHERE 2022; 295:133787. [PMID: 35104538 DOI: 10.1016/j.chemosphere.2022.133787] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 12/15/2021] [Accepted: 01/27/2022] [Indexed: 06/14/2023]
Abstract
Efficient photoelectrodes are highly desired in bio-photoelectrochemical systems (BPES). Herein, in this paper, the oxygen defect-rich BiVO4/Ni9S8 photoanode was developed and coupled with a biocathode for enhanced chlortertracycline (CTC) degradation and current generation in the self-biased BPES. Characterization results showed that the optimized BiVO4/Ni9S8-7 mg-150 °C NF exhibited the best photocatalytic activity, due to that the rich oxygen vacancies and Ni9S8 could significantly improve light absorption, enhance photo-generated carriers separation, and accelerate charges transfer. CTC (20 mg L-1) removal efficiency from the BPES was about 1.3 times (82.3% vs 64.7%) of that from the unilluminated reactor, and current output (0.68 A m-3) was about 7.6 times (0.09 A m-3). The dominant species in genus level was Geobacter, which is capable of reducing nitroaromatics and in favor of reductive dehalogenation of CTC. Besides, Comamonas and Rhodopseudomonas that are capable of degrading antibiotics were also detected. Possible degradation pathways and mechanism of CTC degradation in the BPES were proposed. This research advances the development of photoelectrode materials for light-driven BPESs and enriches antibiotics degradation mechanism.
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Affiliation(s)
- Lingli Tu
- School of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China
| | - Yiyuan Rong
- Guangxi Open University, Nanning, 530004, China
| | - Zebin Yu
- School of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China; Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Nanning, 530004, China; MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials, Nanning, 530004, China
| | - Shuo Chen
- School of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China
| | - Jiangli Sun
- School of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China
| | - Zhihong Li
- School of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China
| | - Jialu Li
- School of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China
| | - Yanping Hou
- School of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China; Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Nanning, 530004, China; MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials, Nanning, 530004, China.
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Zhao G, Ding J, Zhou F, Zhao Q, Wang K, Chen X, Gao Q. Insight into a novel microwave-assisted W doped BiVO4 self-assembled sphere with rich oxygen vacancies oriented on rGO (W-BiVO4-x/rGO) photocatalyst for efficient contaminants removal. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119610] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Gu X, Luo Y, Li Q, Wang R, Fu S, Lv X, He Q, Zhang Y, Yan Q, Xu X, Ji F, Qiu Y. First-Principle Insight Into the Effects of Oxygen Vacancies on the Electronic, Photocatalytic, and Optical Properties of Monoclinic BiVO 4(001). Front Chem 2020; 8:601983. [PMID: 33363112 PMCID: PMC7758495 DOI: 10.3389/fchem.2020.601983] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 10/28/2020] [Indexed: 01/27/2023] Open
Abstract
In this paper, first-principle calculations were performed to investigate the effects of oxygen (O) vacancies (Ovac) on the crystal structure, electronic distribution, adsorption energies of O2 and H2O and the density of states (DOS) of monoclinic bismuth vanadate (m-BiVO4). Ovac were stable when incorporated into m-BiVO4(001) and increased the adsorption energy of O2. Ovac changed the V3d orbitals of m-BiVO4(001) by adding a new band gap level, causing the redundant electrons of V atoms to become carriers and promoting the separation efficiency of electrons and holes. To verify the first-principle calculations, m-BiVO4 with different Ovac levels was prepared via hydrothermal synthesis. X-ray diffraction (XRD) patterns confirmed the existence of the (001) crystal surface of m-BiVO4. In addition, X-ray photoelectron spectroscopy (XPS) and electron spin resonance (ESR) spectroscopy of m-BiVO4 confirmed the presence of Ovac and demonstrated that, as the Ovac level increased, the number of superoxide radicals (O 2 - · ) and hydroxyl radicals (·OH) produced increased. In addition, m-BiVO4 with a higher Ovac level possessed superior photocatalytic properties to and degraded rhodamine B (RhB) dye nearly 2-fold faster than m-BiVO4 with a lower Ovac level. Finally, the removal rate of RhB increased from 23 to 44%. All experimental results were in good agreement with the first-principle calculated results.
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Affiliation(s)
- Xiaosong Gu
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, China
| | - Yujie Luo
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, China
| | - Qi Li
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, China
| | - Rui Wang
- Department of Physics, Center for Quantum Materials and Devices, Institute for Structure and Function, Chongqing University, Chongqing, China
| | - Shiqi Fu
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, China
| | - Xiulong Lv
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, China
| | - Qian He
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, China
| | - Ying Zhang
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, China
| | - Qiutong Yan
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, China
| | - Xuan Xu
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, China
| | - Fangying Ji
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, China
| | - Yan Qiu
- School of Architectural Engineering, Yunnan Agricultural University, Kunming, China
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Enhancing visible-light driven photocatalytic performance of BiOBr by self-doping and in-situ deposition strategy: A synergistic effect between Bi5+ and metallic Bi. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.117388] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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7
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Wang S, Wang Y, Li L, Li L, Fu G, Shi R, Zou X, Zhang Z, Luo F. Green synthesis of Ag/TiO 2 composite coated porous vanadophosphates with enhanced visible-light photo-degradation and catalytic reduction performance for removing organic dyes. Dalton Trans 2020; 49:7920-7931. [PMID: 32490442 DOI: 10.1039/d0dt00797h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
As environmental pollution and energy shortages have become global concerns, the construction of highly efficient catalysts using facile and green methods remains a long-term goal. In the present study, we proposed a facile catalyst preparation method in which Ag/TiO2 composites were coated on the surface of the porous pure inorganic crystalline vanadium phosphates (VPO) by a one-step strategy. More importantly, the in situ reduction of Ag nanoparticles was achieved at room temperature without severe conditions or hydrogen atmosphere in which the porous VPO was employed as the reductant. The prepared Ag/VPO@TiO2 composites act as a class of efficient bifunctional catalysts for visible light photodegradation of MB molecules and catalytic reduction of p-nitrophenol (4-NP). Among these samples, the 6.82%Ag/VPO@TiO2 composite exhibited a superior photocatalytic activity in the degradation of MB and an ultrafast reduction rate for 4-NP of about 0.1 mM/40 s. The photocatalytic mechanistic studies revealed that the encapsulated VPO with a narrow band gap not only efficiently enhances the photosensitivity of the TiO2 but also largely facilitates the photogenerated charge separation. The subsequent deposition of Ag NPs is able to further promote electron transfer ability, which leads to the higher photocatalytic activity. Moreover, the contact of Ag NPs with the surface of semiconductor TiO2 can result in an electron-enhanced area in their interface that could effectively facilitate the uptake of electrons by the 4-NP molecules and then improve the reduction activity.
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Affiliation(s)
- Shuang Wang
- Key Laboratory of Polyoxometalate Science of the Ministry of Education, College of Chemistry, Northeast Normal University, Jilin 130024, P. R. China
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Tu L, Hou Y, Yuan G, Yu Z, Qin S, Yan Y, Zhu H, Lin H, Chen Y, Wang S. Bio-photoelectrochemcial system constructed with BiVO 4/RGO photocathode for 2,4-dichlorophenol degradation: BiVO 4/RGO optimization, degradation performance and mechanism. JOURNAL OF HAZARDOUS MATERIALS 2020; 389:121917. [PMID: 31879103 DOI: 10.1016/j.jhazmat.2019.121917] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Revised: 11/24/2019] [Accepted: 12/15/2019] [Indexed: 06/10/2023]
Abstract
A single-chamber bio-photoelectrochemical system (BPES) constructed with BiVO4/reduced graphene oxide (RGO) photocathode was proposed for 2,4-dichlorophenol (2,4-DCP) degradation under simulated solar irradiation. The BiVO4/RGO (B/G) composites were synthesized, optimized and characterized by various techniques to analyze their physico-chemical and photocatalytic properties. Results showed that B/G (5 wt% - 9 h - 150 °C) exhibited the best photocatalytic activity for 2,4-DCP degradation, which was 1.5 times of that of BiVO4, due to its better light absorption, faster electrons transfer, and more efficient photo-generated e- - h+ separation. Reactive species trapping experiments revealed that ·OH was the main radical leading to 2,4-DCP degradation, and h+ also influenced 2,4-DCP removal. The 2,4-DCP (20 mg/L) removal rate and current output from the illuminated BPES were much higher than those of the unilluminated reactor (68.5 % vs. 41.8 %, 60.31 A/m3 vs. 40.07 A/m3) in 24 h, and the cathode potential was more negative, indicating that photocathode catalytic process was favorable to pollutants degradation and energy generation. Intermediates of 2,4-DCP degradation in the BPES were identified, and accordingly, possible degradation pathway and mechanism were proposed. This research advanced the development of efficient photocathode and mechanism of recalcitrant wastewater treatment in the BPES.
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Affiliation(s)
- Lingli Tu
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Yanping Hou
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China; Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, China
| | - Guiyun Yuan
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Zebin Yu
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Shanming Qin
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Yimin Yan
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Hongxiang Zhu
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, China; College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China; Guangxi Bossco Environmental Protection Technology Co., Ltd, 12 Kexin Road, Nanning 530007, China
| | - Hongfei Lin
- Guangxi Bossco Environmental Protection Technology Co., Ltd, 12 Kexin Road, Nanning 530007, China
| | - Yongli Chen
- Guangxi Bossco Environmental Protection Technology Co., Ltd, 12 Kexin Road, Nanning 530007, China
| | - Shuangfei Wang
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, China; College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China; Guangxi Bossco Environmental Protection Technology Co., Ltd, 12 Kexin Road, Nanning 530007, China.
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Chen S, Huang D, Xu P, Gong X, Xue W, Lei L, Deng R, Li J, Li Z. Facet-Engineered Surface and Interface Design of Monoclinic Scheelite Bismuth Vanadate for Enhanced Photocatalytic Performance. ACS Catal 2019. [DOI: 10.1021/acscatal.9b03411] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Sha Chen
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China
| | - Danlian Huang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China
| | - Piao Xu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China
| | - Xiaomin Gong
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Wenjing Xue
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China
| | - Lei Lei
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China
| | - Rui Deng
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China
| | - Jing Li
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China
| | - Zhihao Li
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China
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Huang J, Yue P, Wang L, She H, Wang Q. A review on tungsten-trioxide-based photoanodes for water oxidation. CHINESE JOURNAL OF CATALYSIS 2019. [DOI: 10.1016/s1872-2067(19)63399-1] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Huang W, Wang S, Zhou Q, Liu X, Chen X, Yang K, Yu C, Li D. Constructing novel ternary composites of carbon quantum dots/Bi2MoO6/graphitic nanofibers with tunable band structure and boosted photocatalytic activity. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2019.02.024] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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The pivotal effects of oxygen vacancy on Bi2MoO6: Promoted visible light photocatalytic activity and reaction mechanism. CHINESE JOURNAL OF CATALYSIS 2019. [DOI: 10.1016/s1872-2067(19)63277-8] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Taghipour S, Hosseini SM, Ataie-Ashtiani B. Engineering nanomaterials for water and wastewater treatment: review of classifications, properties and applications. NEW J CHEM 2019. [DOI: 10.1039/c9nj00157c] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Based on their characteristics and applicability, a new category of NMs is proposed for water and wastewater treatment.
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Affiliation(s)
- Shabnam Taghipour
- Department of Civil Engineering
- Sharif University of Technology
- Tehran
- Iran
| | | | - Behzad Ataie-Ashtiani
- Department of Civil Engineering
- Sharif University of Technology
- Tehran
- Iran
- National Centre for Groundwater Research & Training and College of Science & Engineering
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