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Liu Z, Zhao F, Liu X, Fu Y, Song Y, Wang P, Zhang X, Wang G, Ma H. Unlocking a Type-II CoO@BiVO 4 Heterostructure for Wastewater Purification. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:1348-1357. [PMID: 38176059 DOI: 10.1021/acs.langmuir.3c02969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2024]
Abstract
Developing a semiconductor-based heterostructure photoanode is crucial in improving the photoelectrocatalytic (PEC) efficiency for degrading refractory organic pollutants. Nevertheless, the PEC performance of the photoanodes is usually restricted by electron/hole pair recombination, oxygen evolution, and slow electron transfer. Herein, a novel CoO@BiVO4 nanowire array film (Ti/CoO@BiVO4) with n-type semiconductor characteristics was prepared via a straightforward hydrothermal method. The optimized Ti/CoO@BiVO4 electrode exhibited excellent PEC decolorization efficiency of active brilliant blue KN-R (∼92.8%) and long-term stability, outperforming recent reports. The insight reason for enhancing the PEC degradation efficiency of the Ti/CoO@BiVO4 electrodes can be attributed to the large electrochemical active area, low charge transfer resistance, and negative flat band potential. The formation of a type-II heterostructure was investigated between CoO and BiVO4 further to promote the generation and separation efficiency of electron/hole pairs, indicating that the optimized Ti/CoO@BiVO4 electrode has the potential for the water PEC degradation ability and superior service life.
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Affiliation(s)
- Zixuan Liu
- School of Light Industry & Chemical Engineering, Dalian Polytechnic University, No. 1 Qinggongyuan, Ganjingzi District, Dalian 116034, P. R. China
| | - Fanyue Zhao
- School of Light Industry & Chemical Engineering, Dalian Polytechnic University, No. 1 Qinggongyuan, Ganjingzi District, Dalian 116034, P. R. China
| | - Xinghui Liu
- Science and Technology on Aerospace Chemical Power Laboratory, Hubei Institute of Aerospace Chemotechnology, Xiangyang 441003, China
- Department of Materials Physics, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences (SIMTS), Thandalam, Chennai 602105, Tamilnadu, India
| | - Yinghuan Fu
- School of Light Industry & Chemical Engineering, Dalian Polytechnic University, No. 1 Qinggongyuan, Ganjingzi District, Dalian 116034, P. R. China
| | - Yu Song
- School of Light Industry & Chemical Engineering, Dalian Polytechnic University, No. 1 Qinggongyuan, Ganjingzi District, Dalian 116034, P. R. China
| | - Pengyuan Wang
- School of Light Industry & Chemical Engineering, Dalian Polytechnic University, No. 1 Qinggongyuan, Ganjingzi District, Dalian 116034, P. R. China
| | - Xinxin Zhang
- School of Light Industry & Chemical Engineering, Dalian Polytechnic University, No. 1 Qinggongyuan, Ganjingzi District, Dalian 116034, P. R. China
| | - Guowen Wang
- School of Light Industry & Chemical Engineering, Dalian Polytechnic University, No. 1 Qinggongyuan, Ganjingzi District, Dalian 116034, P. R. China
| | - Hongchao Ma
- School of Light Industry & Chemical Engineering, Dalian Polytechnic University, No. 1 Qinggongyuan, Ganjingzi District, Dalian 116034, P. R. China
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Ali A, Shahid I, Ahmad I, Lu B, Zhang H, Zhang W, Johnny Wong PK. Enhanced visible-light-driven photocatalytic activity in SiPGaS/arsenene-based van der Waals heterostructures. iScience 2023; 26:108025. [PMID: 37841586 PMCID: PMC10568434 DOI: 10.1016/j.isci.2023.108025] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 09/05/2023] [Accepted: 09/19/2023] [Indexed: 10/17/2023] Open
Abstract
Van der Waals heterostructures (vdWHs) showcase robust and tunable light-matter interactions, establishing an intriguing realm for investigating atomic-scale photocatalytic properties. Here, we employ ab initio methods to study the photocatalytic and optical properties of semiconducting SiPGaS/arsenene-based vdWHs with a type-II band alignment. Across the heterointerfaces, there exists significant built-in electric fields and large potential drop, in turn facilitating the spatial separation of photo-generated electron-hole pairs. These vdWHs further possess high carrier mobility in the order of 102 cm2V⁻1S⁻1, which combining with appropriate band edge positions, endow the vdWHs an absorption coefficient of ∼10⁵ cm⁻1 to harvest a maximal portion of the solar spectrum for visible-light-driven photocatalytic applications. Our findings also reveal transition of the type-II band alignment in a type-III configuration via compressive strain for tunneling field-effect transistor application. Furthermore, both types of vdWHs exhibit enhanced suitability for photocatalysis under conditions with a pH of 2.
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Affiliation(s)
- Anwar Ali
- ARTIST Lab for Artificial Electronic Materials & Technologies, School of Microelectronics, Northwestern Polytechnical University, Xi’an 710072, Shaanxi, P.R. China
- Yangtze River Delta Research Institute of Northwestern Polytechnical University, Taicang 215400, P.R. China
| | - Ismail Shahid
- School of Materials Science and Engineering, Institute of New Energy Material Chemistry, Renewable Energy Conversion and Storage Centre (ReCast), Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin 300350, P.R. China
| | - Iqtidar Ahmad
- College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, P.R. China
| | - Bin Lu
- ARTIST Lab for Artificial Electronic Materials & Technologies, School of Microelectronics, Northwestern Polytechnical University, Xi’an 710072, Shaanxi, P.R. China
- Yangtze River Delta Research Institute of Northwestern Polytechnical University, Taicang 215400, P.R. China
- NPU Chongqing Technology Innovation Center, Chongqing 400000, P.R. China
| | - Haitao Zhang
- ARTIST Lab for Artificial Electronic Materials & Technologies, School of Microelectronics, Northwestern Polytechnical University, Xi’an 710072, Shaanxi, P.R. China
- Yangtze River Delta Research Institute of Northwestern Polytechnical University, Taicang 215400, P.R. China
| | - Wen Zhang
- ARTIST Lab for Artificial Electronic Materials & Technologies, School of Microelectronics, Northwestern Polytechnical University, Xi’an 710072, Shaanxi, P.R. China
- Yangtze River Delta Research Institute of Northwestern Polytechnical University, Taicang 215400, P.R. China
| | - Ping Kwan Johnny Wong
- ARTIST Lab for Artificial Electronic Materials & Technologies, School of Microelectronics, Northwestern Polytechnical University, Xi’an 710072, Shaanxi, P.R. China
- Yangtze River Delta Research Institute of Northwestern Polytechnical University, Taicang 215400, P.R. China
- NPU Chongqing Technology Innovation Center, Chongqing 400000, P.R. China
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3
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Hamdani IR, Ahmad A, Chulliyil HM, Srinivasakannan C, Shoaibi AA, Hossain MM. Thermocatalytic Decomposition of Methane: A Review on Carbon-Based Catalysts. ACS OMEGA 2023; 8:28945-28967. [PMID: 37599913 PMCID: PMC10433352 DOI: 10.1021/acsomega.3c01936] [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: 05/19/2023] [Accepted: 07/06/2023] [Indexed: 08/22/2023]
Abstract
The global initiatives on sustainable and green energy resources as well as large methane reserves have encouraged more research to convert methane to hydrogen. Catalytic decomposition of methane (CDM) is one optimistic route to generate clean hydrogen and value-added carbon without the emission of harmful greenhouse gases, typically known as blue hydrogen. This Review begins with an attempt to understand fundamentals of a CDM process in terms of thermodynamics and the prerequisite characteristics of the catalyst materials. In-depth understanding of rate-determining steps of the heterogeneous catalytic reaction taking place over the catalyst surfaces is crucial for the development of novel catalysts and process conditions for a successful CDM process. The design of state-of-the-art catalysts through both computational and experimental optimizations is the need of hour, as it largely governs the economy of the process. Recent mono- and bimetallic supported and unsupported materials used in CDM process have been highlighted and classified based on their performances under specific reaction conditions, with an understanding of their advantages and limitations. Metal oxides and zeolites have shown interesting performance as support materials for Fe- and Ni-based catalysts, especially in the presence of promoters, by developing strong metal-support interactions or by enhancing the carbon diffusion rates. Carbonaceous catalysts exhibit lower conversions without metal active species and largely result in the formation of amorphous carbon. However, the stability of carbon catalysts is better than that of metal oxides at higher temperatures, and the overall performance depends on the operating conditions, catalyst properties, and reactor configurations. Although efforts to summarize the state-of-art have been reported in literature, they lack systematic analysis on the development of stable and commercially appealing CDM technology. In this work, carbon catalysts are seen as promising futuristic pathways for sustained H2 production and high yields of value-added carbon nanomaterials. The influence of the carbon source, particle size, surface area, and active sites on the activity of carbon materials as catalysts and support templates has been demonstrated. Additionally, the catalyst deactivation process has been discussed, and different regeneration techniques have been evaluated. Recent studies on theoretical models towards better performance have been summarized, and future prospects for novel CDM catalyst development have been recommended.
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Affiliation(s)
- Iqra R. Hamdani
- Department
of Chemical Engineering, Khalifa University
of Science and Technology, Abu Dhabi 127788, United Arab Emirates
| | - Adeel Ahmad
- Department
of Chemical Engineering, Khalifa University
of Science and Technology, Abu Dhabi 127788, United Arab Emirates
| | - Haleema M. Chulliyil
- Department
of Chemical Engineering, Khalifa University
of Science and Technology, Abu Dhabi 127788, United Arab Emirates
| | - Chandrasekar Srinivasakannan
- Department
of Chemical Engineering, Khalifa University
of Science and Technology, Abu Dhabi 127788, United Arab Emirates
| | - Ahmed A. Shoaibi
- Department
of Chemical Engineering, Khalifa University
of Science and Technology, Abu Dhabi 127788, United Arab Emirates
| | - Mohammad M. Hossain
- Department
of Chemical Engineering, King Fahad University
of Petroleum and Minerals, Dhahran 31261, Kingdom of Saudi Arabia
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Wei X, Naraginti S, Yang X, Xu X, Li J, Sun J, Liu Z, Pei J. A novel magnetic AgVO 3/rGO/CuFe 2O 4 hybrid catalyst for efficient hydrogen evolution and photocatalytic degradation. ENVIRONMENTAL RESEARCH 2023; 229:115948. [PMID: 37105284 DOI: 10.1016/j.envres.2023.115948] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 04/08/2023] [Accepted: 04/18/2023] [Indexed: 05/21/2023]
Abstract
A superior semiconductor material with efficient charge separation and easy reuse could be a promising route for efficient photocatalytic hydrogen evolution and pollutant degradation. AgVO3 is one of the best visible light active materials which has attracted much attention for several biological and environmental applications. In the aim of enhancing its stability and recyclability a novel AgVO3/rGO/CuFe2O4 heterojunction was prepared by hydrothermal method for hydrogen generation (H2) and 4-nitrophenol (4-NP) degradation as well. The composite was well characterized by XRD, SEM, HR-TEM, XPS and VSM. The morphological images suggested the rod shaped AgVO3 and irregular shaped CuFe2O4 are unevenly distributed on reduced graphene oxide (rGO) layers. The hydrogen evolution results indicated that the composite showed around 8.937 mmol g-1h-1 of H2 generation which was ∼2.3 times and ∼9.2 times higher than pure AgVO3 (3.895 mmol g-1h-1) and CuFe2O4 (0.96 mmol g-1h-1) respectively. The 4-NP degradation efficiency of the prepared composite was observed as 94.7% (k = 0.01841 min-1) which is much higher than the AgVO3 (66.3%) and CuFe2O4 (38.2%) after 4 h of irradiation. The higher efficiency could be attributed to the heterojunction formation and faster charge separation. The radical trapping results indicated that the •OH, O2•- and photogenerated h+ are the main species responsible for efficient activity. The AgVO3/rGO/CuFe2O4 heterojunction showed 49.6 emu/g of saturation magnetization and confirms that it could be easily separated with an external magnet, and showed 85.3% of degradation efficiency even after 6 recycles which indicated its higher stability and recyclability. Thus, our study provides new insight into hydrogen generation and phenol degradation using AgVO3 based recyclable composites.
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Affiliation(s)
- Xueyu Wei
- School of Civil Engineering and Architecture, Anhui Polytechnic University, Wuhu, 241000, PR China
| | - Saraschandra Naraginti
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, 241000, PR China.
| | - Xiaofan Yang
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, 241000, PR China.
| | - Xiaoping Xu
- School of Civil Engineering and Architecture, Anhui Polytechnic University, Wuhu, 241000, PR China
| | - Jiyuan Li
- School of Civil Engineering and Architecture, Anhui Polytechnic University, Wuhu, 241000, PR China
| | - Junwei Sun
- School of Civil Engineering and Architecture, Anhui Polytechnic University, Wuhu, 241000, PR China
| | - Zhigang Liu
- Ningbo Water Environment Group Co Ltd, Ningbo, 315041, PR China
| | - Jiang Pei
- College of Environment, Hohai University, Nanjing, 210098, PR China
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5
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Wang X, Hu S, Mao H, Wei X, Naraginti S. Facile fabrication of AgVO 3/rGO/BiVO 4 hetero junction for efficient degradation and detoxification of norfloxacin. ENVIRONMENTAL RESEARCH 2023; 227:115623. [PMID: 36894117 DOI: 10.1016/j.envres.2023.115623] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Revised: 02/15/2023] [Accepted: 03/03/2023] [Indexed: 05/08/2023]
Abstract
In the recent past, the development of efficient materials for degradation and detoxification of antibiotics has gained more attention in wastewater treatment process. As a visible light active material AgVO3 has attracted much concern in environmental remediation. To improve its efficiency and stability, a novel heterojunction was prepared by combining AgVO3 with rGO and BiVO4 through a hydrothermal method. The prepared AgVO3/rGO/BiVO4 composite was further utilized for effective detoxification of Norfloxacin (NFC) antibiotic. The morphological analysis revealed the clear rod shaped AgVO3 and leaf like BiVO4 that are evenly distributed on reduced graphene oxide (rGO) layers. The visible light absorbance and the catalytic activity of AgVO3/rGO/BiVO4 was dramatically improved compared to pure AgVO3 and BiVO4. From the results it showed that the degradation efficiency of AgVO3/rGO/BiVO4 (∼96.1%, k = 0.01782 min-1) was 2.5 times higher than pure AgVO3 and 3.4 times higher than the pure BiVO4 respectively towards NFC after 90 min. The higher efficiency could be attributed to the heterojunction formation and faster charge separation. The radical trapping experiments results indicated that the •OH, and O2•- are the main species responsible for degradation. The degradation products of NFC were analysed through ESI-LC/MS and pathway was proposed. Furthermore, the toxicity assessment of pure NFC and its degradation products was studied using E. coli as the model bacteria through colony forming unit assay and the results indicated the efficient detoxification was attained during the degradation process. Thus, our study provides new insight into detoxification of antibiotics using AgVO3 based composites.
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Affiliation(s)
- Xiaoju Wang
- College of Urban and Rural Construction, Shanxi Agricultural University, Jinzhong, 030801, Shanxi, PR China
| | - Shanshan Hu
- College of Urban and Rural Construction, Shanxi Agricultural University, Jinzhong, 030801, Shanxi, PR China
| | - Haitao Mao
- College of Urban and Rural Construction, Shanxi Agricultural University, Jinzhong, 030801, Shanxi, PR China.
| | - Xueyu Wei
- School of Civil Engineering and Architecture, Anhui Polytechnic University, Wuhu, 241000, PR China.
| | - Saraschandra Naraginti
- School of Civil Engineering and Architecture, Anhui Polytechnic University, Wuhu, 241000, PR China
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6
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Yang X, Xu Y, Naraginti S, Wei X. Enhanced sulfamethazine detoxification by a novel BiOCl (110)/NrGO/BiVO 4 heterojunction. ENVIRONMENTAL RESEARCH 2023; 232:116351. [PMID: 37327844 DOI: 10.1016/j.envres.2023.116351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 05/26/2023] [Accepted: 06/06/2023] [Indexed: 06/18/2023]
Abstract
The emerging contaminants removal from the environment has recently been raised concerns due to their presence in higher concentrations. Over usage of emerging contaminant such as sulfamethazine poses serious threat to the aquatic and human health as well. This study deals with rationally structured a novel BiOCl (110)/NrGO/BiVO4 heterojunction which is used to detoxify sulfamethazine (SMZ) antibiotic efficiently. The synthesised composite was well characterized and the morphological analysis evidenced the formation of heterojunction consisted of nanoplates BiOCl with dominant exposed (110) facets and leaf like BiVO4 on NrGO layers. Further results revealed that the addition of BiVO4 and NrGO tremendously increased the photocatalytic degradation efficiency of BiOCl with the rate of 96.9% (k = 0.01783 min-1) towards SMZ within 60 min of visible light irradiation. Furthermore, heterojunction energy-band theory was employed to determine the degradation mechanism of SMX in this study. The larger surface area of BiOCl and NrGO layers are believed to be the reason for higher activity which facilitates the excellent charge transfer and improved light absorption. In addition, SMZ degradation products identification was carried out by LC-ESI/MS/MS to determine the pathway of degradation. The toxicity assessment was studied using E. coli as a model microorganism through colony forming unit assay (CFU), and the results indicated a significant reduction in biotoxicity was observed in 60 min of degradation process. Thus, our work gives new methods in developing various materials that effectively treat emerging contaminants from the aqueous environment.
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Affiliation(s)
- Xiaofan Yang
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, 241000, PR China.
| | - Yutao Xu
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, 241000, PR China
| | - Saraschandra Naraginti
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, 241000, PR China.
| | - Xueyu Wei
- School of Civil Engineering and Architecture, Anhui Polytechnic University, Wuhu, 241000, PR China
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An D, Sun Y, Yang YL, Shi XL, Chen HJ, Zhang L, Suo G, Hou X, Ye X, Lu S, Chen ZG. A strategy-purifying wastewater with waste materials: Zn 2+ modified waste red mud as recoverable adsorbents with an enhanced removal capacity of congo red. J Colloid Interface Sci 2023; 645:694-704. [PMID: 37167918 DOI: 10.1016/j.jcis.2023.04.176] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 04/26/2023] [Accepted: 04/30/2023] [Indexed: 05/13/2023]
Abstract
The strategy, called purifying wastewater with waste materials (PWWM), can simultaneously improve the secondary utilization of industrial waste materials and in turn, reduce environmental pollution. However, the PWWM strategy has still not been extensively used because of its low purification efficiency of organic pollutants and extremely difficult secondary utilization process. Herein, we use zinc aluminum silicate (ZAS) to modify waste granular red mud (GRM) to form a recoverable adsorbent, called ZAS/GRM adsorbent. The ZAS has been found to exhibit exceptional adsorption performance with the ability to firmly anchor onto the surface of GRM, in which heavy metal ions can effectively solidify and reduce their outflow. Furthermore, many voids have been tactfully designed in the ZAS/GRM adsorbents by using a water vapor project, which provide more active sites for congo red (CR) organic dye, thereby remarkably improving the removal efficiency of CR. From our purification of CR, we find that the CR adsorption capacity of the ZAS/GRM adsorbent is 3.509 mg g-1, which is four times higher than pure GRM (0.820 mg g-1). This study demonstrates our PWWM strategy is highly effective and can inspire more research on waste reuse.
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Affiliation(s)
- Dongdong An
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Yu Sun
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Yan-Ling Yang
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an 710021, China.
| | - Xiao-Lei Shi
- School of Chemistry and Physics and Center for Materials Science, Queensland University of Technology, Brisbane, QLD 4000, Australia
| | - Hua-Jun Chen
- School of Environment and Chemistry, Luoyang Institute of Science and Technology, Luoyang 471023, China
| | - Li Zhang
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Guoquan Suo
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Xiaojiang Hou
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Xiaohui Ye
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Siyu Lu
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, 450001, China
| | - Zhi-Gang Chen
- School of Chemistry and Physics and Center for Materials Science, Queensland University of Technology, Brisbane, QLD 4000, Australia.
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8
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Li C, Chen M, Xie Y, Wang H, Jia L. Boosting photoelectrochemical water splitting of bismuth vanadate photoanode via novel co-catalysts of amorphous manganese oxide with variable valence states. J Colloid Interface Sci 2023; 636:103-112. [PMID: 36623364 DOI: 10.1016/j.jcis.2023.01.005] [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: 09/19/2022] [Revised: 12/28/2022] [Accepted: 01/02/2023] [Indexed: 01/06/2023]
Abstract
Bismuth vanadate (BVO) is a promising photoanode while suffers from sluggish oxygen evolution kinetics. Herein, an ultra-thin manganese oxide (MnOx) is selected as co-catalyst to modify the surface of BVO photoanode by a facile spray pyrolysis method. The photoelectrochemical measurements demonstrate that surface charge transport efficiency (ηsurface) of MnOx modified BVO photoanode (BVO/MnOx) is strikingly increased from 6.7 % to 22.3 % at 1.23 VRHE (reversible hydrogen electrode (VRHE)). Moreover, the ηsurface can be further boosted to 51.3 % at 1.23 VRHE after applying Ar plasma on the BVO/MnOx sample, which is around 7 times higher comparing with that of pristine BVO samples. Additional characterizations reveal that the remarkable PEC performance of the Ar-plasma treated BVO/MnOx photoanode (BVO/MnOx/Ar plasma) could be attributed to the increased charge carrier density, extended carrier lifetime and additional exposed Mn3+ active sites on the BVO surface. This investigation could provide a new understanding for the design of BVO photoanode with superior PEC performance based on the modification of MnOx and plasma surface treatment.
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Affiliation(s)
- Can Li
- Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, 620 West Chang'an Street, Xi'an, Shaanxi 710119,China
| | - Meihong Chen
- Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, 620 West Chang'an Street, Xi'an, Shaanxi 710119,China
| | - Yuhan Xie
- Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, 620 West Chang'an Street, Xi'an, Shaanxi 710119,China
| | - Hongqiang Wang
- State Key Laboratory of Solidification Processing, Center for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University and Shaanxi Joint Labortary of Graphene, Xi'an 710072, China.
| | - Lichao Jia
- Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, 620 West Chang'an Street, Xi'an, Shaanxi 710119,China.
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9
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Gu H, Liang F, Wang X, Wu S, Lv G, Zhang H, Zhang S, Lu L, Dong Z. N-doped rutile TiO 2 nanorod@g-C 3N 4 core/shell S-scheme heterojunctions for boosting CO 2 photoreduction activity. Catal Sci Technol 2023. [DOI: 10.1039/d2cy01839j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A novel core/shell structure composed of N-doped rutile TiO2@g-C3N4 (NT@CNx) with an S-scheme heterojunction is successfully synthesized. The S-scheme heterojunction optimizes the electrochemical property and redox ability of the NT@CNx composite.
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Affiliation(s)
- Haohui Gu
- The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Feng Liang
- The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Xiaohan Wang
- The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Shuaibing Wu
- The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Gongye Lv
- The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Haijun Zhang
- The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Shaowei Zhang
- College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter EX4 4QF, UK
| | - Lilin Lu
- The Hubei Province Key Laboratory of Coal Conversion & New Carbon Materials, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Zhijun Dong
- The Hubei Province Key Laboratory of Coal Conversion & New Carbon Materials, Wuhan University of Science and Technology, Wuhan 430081, China
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10
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Core-shell Bi-containing spheres and TiO2 nanoparticles co-loaded on kaolinite as an efficient photocatalyst for methyl orange degradation. CATAL COMMUN 2023. [DOI: 10.1016/j.catcom.2023.106609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
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11
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Lin C, Liu H, Guo M, Zhao Y, Su X, Zhang P, Zhang Y. Plasmon-induced broad spectrum photocatalytic overall water splitting: Through non-noble bimetal nanoparticles hybrid with reduced graphene oxide. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128962] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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12
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Li Y, Zhong J, Li J, Huang S, Zhang S, Yang H, Ma L. Enhanced visible light-driven photocatalytic destruction of decontaminants over Bi2O3/BiVO4 heterojunctions with rich oxygen vacancies. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2022.139722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Wei X, Xu X, Yang X, Liu Z, Naraginti S, Sen L, Weidi S, Buwei L. Novel assembly of BiVO 4@N-Biochar nanocomposite for efficient detoxification of triclosan. CHEMOSPHERE 2022; 298:134292. [PMID: 35283149 DOI: 10.1016/j.chemosphere.2022.134292] [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: 12/06/2021] [Revised: 02/15/2022] [Accepted: 03/08/2022] [Indexed: 06/14/2023]
Abstract
The wide spread of antibacterial and antifungal agents demands in growing multifunctional materials to completely eliminate these organic contaminants in water. BiVO4 (Bismuth vanadate) is a superior catalyst under visible light but suffers with high photoelectron-hole pair recombination rate and poor adsorption capacity which limits its efficiency. Addition of N-doped Biochar (N-Biochar) to BiVO4 with large specific surface area and high conductivity are anticipated to overcome the problem and promote the catalytic performance. Thus, the present study developed a simple hydrothermal method to prepare BiVO4@N-Biochar catalyst for efficient detoxification of Triclosan (TCS). The morphological analysis results suggested that BiVO4 particles were evenly distributed on carbon surface amongst the N-Biochar matrix. Within 60 min of visible light irradiation, nearly 94.6% TCS degradation efficiency was attained by BiVO4@N-Biochar (k = 0.02154 min-1) while only 56.7% was attained with pure BiVO4 (k = 0.00637 min-1). In addition, LC-MS/MS technique was utilized to determine the TCS degradation products generation in the photodegradation process and pathway was proposed. Furthermore, the E. coli (Escherichia coli) colony forming unit assay was used to determine the biotoxicity of the degradation products in which 72.3 ± 2.6% of detoxification efficiency was achieved and suggested a substantial reduction in biotoxicity during the photodegradation.
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Affiliation(s)
- Xueyu Wei
- School of Civil Engineering and Architecture, Anhui Polytechnic University, Wuhu, 241000, PR China.
| | - Xiaoping Xu
- School of Civil Engineering and Architecture, Anhui Polytechnic University, Wuhu, 241000, PR China.
| | - Xiaofan Yang
- School of Biological and Chemical Engineering, Anhui Polytechnic University, Wuhu, 241000, PR China
| | - Zhigang Liu
- School of Civil Engineering and Architecture, Anhui Polytechnic University, Wuhu, 241000, PR China; Ningbo Water Supply Co Ltd, Ningbo, 315041, PR China
| | - Saraschandra Naraginti
- School of Biological and Chemical Engineering, Anhui Polytechnic University, Wuhu, 241000, PR China
| | - Lin Sen
- Ningbo Donghai Group Corporation Ningbo, 315181, PR China
| | - Song Weidi
- School of Civil Engineering and Architecture, Anhui Polytechnic University, Wuhu, 241000, PR China
| | - Li Buwei
- School of Civil Engineering and Architecture, Anhui Polytechnic University, Wuhu, 241000, PR China
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Zheng ALT, Ohno T, Andou Y. Recent Progress in Photocatalytic Efficiency of Hybrid Three-Dimensional (3D) Graphene Architectures for Pollution Remediation. Top Catal 2022. [DOI: 10.1007/s11244-022-01610-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Wang L, Wang L, Shi Y, Zhu J, Zhao B, Zhang Z, Ding G, Zhang H. Fabrication of Co 3O 4-Bi 2O 3-Ti catalytic membrane for efficient degradation of organic pollutants in water by peroxymonosulfate activation. J Colloid Interface Sci 2021; 607:451-461. [PMID: 34509119 DOI: 10.1016/j.jcis.2021.08.086] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 07/29/2021] [Accepted: 08/09/2021] [Indexed: 10/20/2022]
Abstract
In this study, a functionalized Co3O4-Bi2O3-Ti catalytic membrane (CBO-Ti-M) was prepared and applied for removing organic pollutants via activating peroxymonosulfate (PMS) in the dead-end filtration mode. Characterizations including scanning electron microcopy (SEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) showed that the Co3O4-Bi2O3 catalyst was successfully supported on the Ti membrane. The CBO-Ti-M /PMS system could efficiently remove various organic pollutants such as sulfamethoxazole, methyl orange, bisphenol A and methylene blue, achieving removal efficiencies of 98.0%-99.5%. The effects of PMS concentration, flow rate and solution environment on degradation efficiency were investigated in detail. Furthermore, quenching experiments, electron spin resonance (ESR) and in-situ open circuit potential (OCP) tests collectively demonstrated that singlet oxygen as well as the non-radical electron transfer pathway mainly contributed in the reaction mechanism. The synergistic effect of Co and Bi was illustrated according to XPS results, and the possible degradation pathway of MB was proposed based on LC-MS analysis. Reusability test showed that pollutant removal efficiency with the CBO-Ti-M /PMS system remained stable in four runs and limited metal leaching was observed.
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Affiliation(s)
- Linlin Wang
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Environmental Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Liang Wang
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Environmental Science and Engineering, Tiangong University, Tianjin 300387, China.
| | - Yawei Shi
- College of Environmental Science and Engineering, Dalian Maritime University, Dalian 116026, China.
| | - Jiandong Zhu
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Environmental Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Bin Zhao
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Environmental Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Zhaohui Zhang
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Environmental Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Guanghui Ding
- College of Environmental Science and Engineering, Dalian Maritime University, Dalian 116026, China
| | - Hongwei Zhang
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Environmental Science and Engineering, Tiangong University, Tianjin 300387, China
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