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Ma S, Kong J, Luo X, Xie J, Zhou Z, Bai X. Recent progress on bismuth-based light-triggered antibacterial nanocomposites: Synthesis, characterization, optical properties and bactericidal applications. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 915:170125. [PMID: 38242469 DOI: 10.1016/j.scitotenv.2024.170125] [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: 12/12/2023] [Revised: 01/09/2024] [Accepted: 01/10/2024] [Indexed: 01/21/2024]
Abstract
Bacterial infections pose a seriously threat to the safety of the environment and human health. In particular, the emergence of drug-resistant pathogens as a result of antibiotic abuse and high trauma risk has rendered conventional therapeutic techniques insufficient for treating infections by these so-called "superbugs". Therefore, there is an urgent need to develop highly efficient and environmentally-friendly antimicrobial agents. Bismuth-based nanomaterials with unique structures and physicochemical characteristics have attracted considerable attention as promising antimicrobial candidates, with many demonstratingoutstanding antibacterial effects upon being triggered by broad-spectrum light. These nanomaterials have also exhibited satisfactory energy band gaps and electronic density distribution with improved photonic properties for extensive and comprehensive applications after being modified through various engineering methods. This review summarizes the latest research progress made on bismuth-based nanomaterials with different morphologies, structures and compositions as well as the different methods used for their synthesis to meet their rapidly increasing demand, especially for antibacterial applications. Moreover, the future prospects and challenges regarding the application of these nanomaterials are discussed. The aim of this review is to stimulate interest in the development and experimental transformation of novel bismuth-based nanomaterials to expand the arsenal of effective antimicrobials.
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Affiliation(s)
- Sihan Ma
- College of Big Data and Information Engineering, Guizhou University, Guiyang 550025, China.
| | - Jianglong Kong
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Xian Luo
- Cancer Research Center, School of Medicine, Xiamen University, Xiamen 361002, China
| | - Jun Xie
- Department of Respiratory and Critical Care Medicine, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu 322000, China
| | - Zonglang Zhou
- Department of Nephrology, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu 322000, China
| | - Xue Bai
- School of Biomedical Engineering, Capital Medical University, Beijing 100069, China.
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2
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Cao L, Huang J, Wu X, Ma B, Xu Q, Zhong Y, Wu Y, Sun M, Yu L. Active-site stabilized Bi metal-organic framework-based catalyst for highly active and selective electroreduction of CO 2 to formate over a wide potential window. NANOSCALE 2023. [PMID: 37991432 DOI: 10.1039/d3nr04962k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2023]
Abstract
Bismuth-based materials have been validated to be a kind of effective electrocatalyst for electrocatalytic CO2 reduction (ECR) to formate (HCOO-). However, the established studies still encounter the problems of low current density, low selectivity, narrow potential window, and poor catalyst stability. Herein, a bismuth-terephthalate framework (Bi-BDC MOF) material was successfully synthesized. The optimized Bi-BDC-120 °C exhibited excellent activity, selectivity, and durability for formate production. At an operating potential of -1.1 V vs. RHE in 0.1 mol L-1 KHCO3 electrolyte, the ECR catalyzed by Bi-BDC-120 °C achieved a Faraday efficiency (FE) of 97.2% towards formate generation, and the total current density reached about 30 mA cm-2. The operating potential window with FEformate values > 95% ranged in -0.9 to -1.5 V vs. RHE. The density-functional theory (DFT) calculation demonstrated that the (001) crystalline planes of Bi-BDC are preferable for the adsorption of CO2 and the conversion of *OCHO intermediates, thus ultimately promoting the electrocatalytic production of formate. Although the MOF structure of Bi-BDC-120 °C was insufficiently stabilized, the FEformate could be maintained at around 90% after 36 h of ECR operation. The long-term durability for formate production was attributed to the fact that the in situ reconstructed Bi2O2CO3 could retain the Bi-O active sites in the structure. These results offer an opportunity to design CO2 reduction electrocatalysts with high activity and selectivity for potential applications.
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Affiliation(s)
- Leliang Cao
- Key Laboratory of Clean Chemistry Technology of Guangdong Regular Higher Education Institutions, Guangdong Engineering Technology Research Center of Modern Fine Chemical Engineering, School of Chemical Engineering and Light Industry, Guangdong University of Technology, 510006 Guangzhou, P. R.China.
| | - Jie Huang
- Key Laboratory of Clean Chemistry Technology of Guangdong Regular Higher Education Institutions, Guangdong Engineering Technology Research Center of Modern Fine Chemical Engineering, School of Chemical Engineering and Light Industry, Guangdong University of Technology, 510006 Guangzhou, P. R.China.
| | - Xueying Wu
- Key Laboratory of Clean Chemistry Technology of Guangdong Regular Higher Education Institutions, Guangdong Engineering Technology Research Center of Modern Fine Chemical Engineering, School of Chemical Engineering and Light Industry, Guangdong University of Technology, 510006 Guangzhou, P. R.China.
| | - Ben Ma
- Key Laboratory of Clean Chemistry Technology of Guangdong Regular Higher Education Institutions, Guangdong Engineering Technology Research Center of Modern Fine Chemical Engineering, School of Chemical Engineering and Light Industry, Guangdong University of Technology, 510006 Guangzhou, P. R.China.
| | - Qingqing Xu
- Key Laboratory of Clean Chemistry Technology of Guangdong Regular Higher Education Institutions, Guangdong Engineering Technology Research Center of Modern Fine Chemical Engineering, School of Chemical Engineering and Light Industry, Guangdong University of Technology, 510006 Guangzhou, P. R.China.
| | - Yuanhong Zhong
- Key Laboratory of Clean Chemistry Technology of Guangdong Regular Higher Education Institutions, Guangdong Engineering Technology Research Center of Modern Fine Chemical Engineering, School of Chemical Engineering and Light Industry, Guangdong University of Technology, 510006 Guangzhou, P. R.China.
- Jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory (Rongjiang Laboratory), Jieyang 515200, P. R.China
| | - Ying Wu
- Key Laboratory of Clean Chemistry Technology of Guangdong Regular Higher Education Institutions, Guangdong Engineering Technology Research Center of Modern Fine Chemical Engineering, School of Chemical Engineering and Light Industry, Guangdong University of Technology, 510006 Guangzhou, P. R.China.
- Jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory (Rongjiang Laboratory), Jieyang 515200, P. R.China
| | - Ming Sun
- Key Laboratory of Clean Chemistry Technology of Guangdong Regular Higher Education Institutions, Guangdong Engineering Technology Research Center of Modern Fine Chemical Engineering, School of Chemical Engineering and Light Industry, Guangdong University of Technology, 510006 Guangzhou, P. R.China.
- Jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory (Rongjiang Laboratory), Jieyang 515200, P. R.China
| | - Lin Yu
- Key Laboratory of Clean Chemistry Technology of Guangdong Regular Higher Education Institutions, Guangdong Engineering Technology Research Center of Modern Fine Chemical Engineering, School of Chemical Engineering and Light Industry, Guangdong University of Technology, 510006 Guangzhou, P. R.China.
- Jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory (Rongjiang Laboratory), Jieyang 515200, P. R.China
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Li X, Li K, Ding D, Yan J, Wang C, Carabineiro SA, Liu Y, Lv K. Effect of oxygen vacancies on the photocatalytic activity of flower-like BiOBr microspheres towards NO oxidation and CO2 reduction. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.123054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Liu Y, Zhang A, Zhang Q, Mei Y, Wang C, Wang Y, Xiang J, Su S, Zhang X, Tan Z. Facile synthesis of ternary AgBr/BiOI/Bi2O2CO3 heterostructures via BiOI self-sacrifice for efficient photocatalytic removal of gaseous mercury. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121722] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Yang X, Ding X, Wang S, Mao J, Cheng L, Li P, Chen H. Superoxide anion and singlet oxygen dominated faster photocatalytic elimination of nitric oxide over defective bismuth molybdates heterojunctions. J Colloid Interface Sci 2022; 618:248-258. [PMID: 35339961 DOI: 10.1016/j.jcis.2022.03.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 03/04/2022] [Accepted: 03/05/2022] [Indexed: 11/24/2022]
Abstract
Establishing an ideal photocatalytic system with efficient reactive oxygen species (ROS) generation has been regarded as the linchpin for realizing efficient nitric oxide (NO) removal and unveiling the ROS-mediated mechanism. In this work, a novel oxygen-deficient 0D/1D Bi3.64Mo0.36O6.55/Bi2MoO6 heterojunctions (BMO-12-H) were successfully synthesized under the enlightenment of clarified crystal growth mechanism of bismuth molybdates. Because of the synergies between defect-engineering and heterojunction-construction, BMO-12-H demonstrated improved photoelectrochemical properties and O2 adsorption capacity, which in turn facilitated the ROS generation and conversion. The enhancement of •O2- and 1O2 endowed BMO-12-H with strengthened NO removal efficiency (59%) with a rate constant of 12.6*10-2 min-1. A conceivable NO removal mechanism dominated by •O2- and 1O2 was proposed and verified based on the theoretical calculations and in-situ infrared spectroscopy tests, where hazardous NO was oxidized following two different exothermic pathways: the •O2--induced NO → NO3- process and the 1O2-induced NO → NO2 → NO3- process. This work offers a basic guideline for accelerating ROS generation by integrating defect-engineering and heterojunction-construction, and provides new insights into the mechanism of efficient NO removal dominated by •O2- and 1O2.
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Affiliation(s)
- Xianglong Yang
- National Reference Laboratory for Agricultural Testing (Biotoxin), Laboratory of Quality and Safety Risk Assessment for Oilseed Products (Wuhan), Key Laboratory of Detection for Mycotoxins, Quality Inspection and Test Center for Oilseed Products, Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, PR China; College of Science, Key Laboratory of Environment Correlative Dietology of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Xing Ding
- College of Science, Key Laboratory of Environment Correlative Dietology of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, PR China.
| | - Shengyao Wang
- College of Science, Key Laboratory of Environment Correlative Dietology of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Jin Mao
- National Reference Laboratory for Agricultural Testing (Biotoxin), Laboratory of Quality and Safety Risk Assessment for Oilseed Products (Wuhan), Key Laboratory of Detection for Mycotoxins, Quality Inspection and Test Center for Oilseed Products, Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, PR China
| | - Ling Cheng
- National Reference Laboratory for Agricultural Testing (Biotoxin), Laboratory of Quality and Safety Risk Assessment for Oilseed Products (Wuhan), Key Laboratory of Detection for Mycotoxins, Quality Inspection and Test Center for Oilseed Products, Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, PR China
| | - Peiwu Li
- National Reference Laboratory for Agricultural Testing (Biotoxin), Laboratory of Quality and Safety Risk Assessment for Oilseed Products (Wuhan), Key Laboratory of Detection for Mycotoxins, Quality Inspection and Test Center for Oilseed Products, Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, PR China.
| | - Hao Chen
- College of Science, Key Laboratory of Environment Correlative Dietology of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, PR China.
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6
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7
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He Y, Tan Y, Song M, Tu Q, Fu M, Long L, Wu J, Xu M, Liu X. Switching on photocatalytic NO oxidation and proton reduction of NH 2-MIL-125(Ti) by convenient linker defect engineering. JOURNAL OF HAZARDOUS MATERIALS 2022; 430:128468. [PMID: 35180523 DOI: 10.1016/j.jhazmat.2022.128468] [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: 10/16/2021] [Revised: 02/08/2022] [Accepted: 02/08/2022] [Indexed: 06/14/2023]
Abstract
Photocatalysis technology has been widely adopted to abate typical air pollutants. Nevertheless, developing photocatalysts aimed at improving photocatalytic efficiency is a challenge. Herein, the linker-defect NH2-MIL-125(Ti) photocatalyst was synthesized through a convenient one-step heating-stirring method (just adjusting multiple temperatures) to firstly realize efficient photocatalytic performances of NO removal and hydrogen evolution. The optimal sample (named 65-NMIL) with a linker-defect content of 32.08% exhibited a NO removal ratio of 65.49%, which was 37.57% higher than that of pristine NH2-MIL-125(Ti), and displayed better H2-production activity. Through ESR, it was confirmed that 65-NMIL can generate more •O2- and •OH under visible light, and the radical trapping experiment further proved that •O2- played a more important role in photocatalytic activity. Moreover, the photocatalytic NO oxidation process was also monitored by in situ DRIFTS, it was found that the defective samples could promote the oxidation of NO and intermediates to the final product (NO3-). On the basis of the above-mentioned photocatalytic experimental results and characterization, a possible mechanism or pathway was proposed and illustrated. This work can provide a new strategy for the subsequent defect engineering for photocatalytic MOFs materials to further solve environmental and energy crises.
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Affiliation(s)
- Youzhou He
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China
| | - Yuwei Tan
- School of Chemistry and Chemical Engineering, Sichuan University of Arts and Science, Dazhou 635000, Sichuan, China.
| | - Mengyu Song
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China
| | - Qingli Tu
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China
| | - Min Fu
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China
| | - Liangjun Long
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China
| | - Jie Wu
- National-local Joint Engineering Laboratory for Road Engineering and Disaster Prevention and Mitigation Technology in Mountainous Areas, China Merchants Chongqing Communications Technology Research & Design Institute CO., LTD., Chongqing 400067, China.
| | - Mengmeng Xu
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China
| | - Xingyan Liu
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China.
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8
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Chen P, Dong X, Huang M, Li K, Xiao L, Sheng J, Chen S, Zhou Y, Dong F. Rapid Self-Decomposition of g-C 3N 4 During Gas–Solid Photocatalytic CO 2 Reduction and Its Effects on Performance Assessment. ACS Catal 2022. [DOI: 10.1021/acscatal.2c00815] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Peng Chen
- Yangtze Delta Region Institute (Huzhou) & Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Huzhou 313000, China
- The Center of New Energy Materials and Technology, School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, China
| | - Xing’an Dong
- Yangtze Delta Region Institute (Huzhou) & Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Huzhou 313000, China
| | - Ming Huang
- Yangtze Delta Region Institute (Huzhou) & Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Huzhou 313000, China
| | - Kanglu Li
- Yangtze Delta Region Institute (Huzhou) & Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Huzhou 313000, China
| | - Lei Xiao
- Yangtze Delta Region Institute (Huzhou) & Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Huzhou 313000, China
| | - Jianping Sheng
- Yangtze Delta Region Institute (Huzhou) & Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Huzhou 313000, China
| | - Si Chen
- Yangtze Delta Region Institute (Huzhou) & Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Huzhou 313000, China
| | - Ying Zhou
- The Center of New Energy Materials and Technology, School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, China
| | - Fan Dong
- Yangtze Delta Region Institute (Huzhou) & Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Huzhou 313000, China
- The Center of New Energy Materials and Technology, School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, China
- State Centre for International Cooperation on Designer Low-Carbon and Environmental Materials (CDLCEM), School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
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9
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Lin M, Li F, Cheng W, Rong X, Wang W. Facile preparation of a novel modified biochar-based supramolecular self-assembled g-C 3N 4 for enhanced visible light photocatalytic degradation of phenanthrene. CHEMOSPHERE 2022; 288:132620. [PMID: 34688717 DOI: 10.1016/j.chemosphere.2021.132620] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 10/15/2021] [Accepted: 10/18/2021] [Indexed: 06/13/2023]
Abstract
The rational design of a novel and environmentally friendly photocatalytic composite for persistent pollutant removal, energy production and catalytic applications have attracted widespread interest. In this study, the new composite composed of KOH-modified biochar and g-C3N4 with different morphologies was successfully prepared with facile supramolecular self-assembly and thermal poly-condensation method. The characterization results of the as-prepared composites suggested that KOH-modified biochar had been well combined with g-C3N4 with different morphologies. These synthesized catalysts were used to degrade phenanthrene under visible light radiation. A-BC/g-C3N4-D performed best and removed 76.72% phenanthrene. Its first-order reaction rate constant was 0.355 h-1, which was 3.7 times higher than that of g-C3N4. A-BC/g-C3N4-D still exhibited a high photocatalytic activity after four cycles. Radical quenching results showed that superoxide radical (·O2-), hydroxyl radical (·OH) and hole (h+) could be used as active species in the redox reaction with phenanthrene. Based on the exploration results of gas chromatography-mass spectrometer (GC-MS), a possible reaction pathway of phenanthrene degradation was also proposed. This study provides a novel strategy for fabricating various high-performance photocatalysts and the removal of persistent organic pollutants.
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Affiliation(s)
- Meixia Lin
- School of Ecological Technology and Engineering, Shanghai Institute of Technology, Shanghai, 210418, China; School of Resources and Environmental Science, Hunan Agricultural University, Changsha, 410128, China.
| | - Fayun Li
- School of Ecological Technology and Engineering, Shanghai Institute of Technology, Shanghai, 210418, China; School of Resources and Environmental Science, Hunan Agricultural University, Changsha, 410128, China.
| | - Wenyuan Cheng
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300401, China
| | - Xiangmin Rong
- School of Resources and Environmental Science, Hunan Agricultural University, Changsha, 410128, China
| | - Wei Wang
- School of Ecological Technology and Engineering, Shanghai Institute of Technology, Shanghai, 210418, China
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Ma S, Zhou Z, Ran G, Xie J, Luo X, Li Y, Wang X, Zhuo H, Yan J, Wang L. An outstanding role of novel virus-like heterojunction nanosphere BOCO@Ag as high performance antibacterial activity agent. JOURNAL OF HAZARDOUS MATERIALS 2022; 422:126785. [PMID: 34403941 DOI: 10.1016/j.jhazmat.2021.126785] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 07/27/2021] [Accepted: 07/28/2021] [Indexed: 06/13/2023]
Abstract
The development of highly efficient photonic nanomaterials with synergistic biological effects is critical and challenging task for public hygiene health well-being and has attracted extensive interest. In this study, a type of near-infrared (NIR) driven, virus-like heterojunction was first developed for synergistic biological application. The Ag-coated Bi2CO5 nanomaterial (BOCO@Ag) demonstrated good biocompatibility, low cytotoxicity, high antibacterial activity and excellent light utilization stability. The synthesized BOCO@Ag performed a potential high photothermal conversion (efficiency~46.81%) to generate high temperatures when irradiated with near-infrared light illumination. As expected, compared to single Ag+ disinfection, BOCO@Ag can exhibit better antibacterial performance when combined with photothermal energy and released Ag+ . These results suggest that BOCO@Ag can be a promising photo-activate antimicrobial candidate and provide security for humans health and the environment treatment.
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Affiliation(s)
- Sihan Ma
- College of energy, Xiamen University, Xiamen, Fujian 361002, China; Fujian Research Center for Nuclear Engineering, Xiamen, Fujian 361102, China
| | - Zonglang Zhou
- School of Medicine, Xiamen University, Xiamen, Fujian 361002, China; 174 Clinical College Affiliated to Anhui Medical University, Anhui Medical University, Hefei, Anhui 230032, China
| | - Guang Ran
- College of energy, Xiamen University, Xiamen, Fujian 361002, China; Fujian Research Center for Nuclear Engineering, Xiamen, Fujian 361102, China
| | - Jun Xie
- School of Medicine, Xiamen University, Xiamen, Fujian 361002, China
| | - Xian Luo
- School of Medicine, Xiamen University, Xiamen, Fujian 361002, China
| | - Yipeng Li
- College of energy, Xiamen University, Xiamen, Fujian 361002, China; Fujian Research Center for Nuclear Engineering, Xiamen, Fujian 361102, China
| | - Xin Wang
- School of Medicine, Xiamen University, Xiamen, Fujian 361002, China; Department of Oncology, The Affiliated Zhongshan Hospital, Xiamen University, Xiamen 361004, Fujian, China.
| | - Huiqing Zhuo
- School of Medicine, Xiamen University, Xiamen, Fujian 361002, China; Institute of Gastrointestinal Oncology, School of Medicine, Xiamen University, Xiamen 361004, Fujian, China; Xiamen Municipal Key Laboratory of Gastrointestinal Oncology, Xiamen 361004, Fujian, China.
| | - Jianghua Yan
- School of Medicine, Xiamen University, Xiamen, Fujian 361002, China; Cancer Research Center, School of Medicine, Xiamen University, Xiamen 361004, Fujian, China.
| | - Lin Wang
- School of Medicine, Xiamen University, Xiamen, Fujian 361002, China; Department of Oncology, The Affiliated Zhongshan Hospital, Xiamen University, Xiamen 361004, Fujian, China; Institute of Gastrointestinal Oncology, School of Medicine, Xiamen University, Xiamen 361004, Fujian, China; Xiamen Municipal Key Laboratory of Gastrointestinal Oncology, Xiamen 361004, Fujian, China.
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Wang Z, Bai Y, Li Y, Tao K, Simayi M, Li Y, Chen Z, Sun Y, Chen X, Pang X, Ma Y, Qi K. Bi 2O 2CO 3/red phosphorus S-scheme heterojunction for H 2 evolution and Cr(VI) reduction. J Colloid Interface Sci 2021; 609:320-329. [PMID: 34896832 DOI: 10.1016/j.jcis.2021.11.136] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 11/21/2021] [Accepted: 11/22/2021] [Indexed: 01/18/2023]
Abstract
Red phosphorus (RP) has a suitable energy band structure and excellent photocatalytic properties. However, there are some problems, such as low quantum efficiency and serious photogenerated electron-hole recombination. The S-scheme heterostructure shows great potential in facilitating the separation and transfer of photogenerated carriers and obtaining strong photo-redox ability. Herein, hydrothermally treated red phosphorus (HRP) was combined with Bi2O2CO3 to construct Bi2O2CO3/HRP S-scheme heterojunction composite. The Bi2O2CO3 content was optimized, and the 5 %Bi2O2CO3/HRP composite obtained at 5 %Bi2O2CO3 mass fraction exhibited the strongest photoreduction ability. The Cr(VI) photoreduction and photolytic hydrogen production rates were as high as 0.22 min-1 and 157.2 μmol •h-1, which were 7.3 and 3.0 times higher than those of HRP, respectively. The promoted photocatalytic activity could be attributed to the formation of S-scheme heterojunctions, which accelerated the separation and transfer of useful photogenerated electron-hole pairs, while enhancing the recombination of relatively useless photogenerated electron-hole pairs, thereby resulting in the highest photocurrent density (17.3 μA/cm2) of the 5 %Bi2O2CO3/HRP composite, which was 1.6 and 4.3 times higher than pure Bi2O2CO3 (10.5 μA/cm2) and pure HRP (4.0 μA/cm2), respectively. This work would provide an advanced approach to enhance the photocatalytic activity of RP.
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Affiliation(s)
- Zhuanhu Wang
- College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi 830054, China
| | - Yuexia Bai
- College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi 830054, China
| | - Yunpeng Li
- College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi 830054, China
| | - Kaixin Tao
- College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi 830054, China
| | - Mayire Simayi
- College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi 830054, China
| | - Yuchen Li
- College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi 830054, China
| | - Zhihao Chen
- College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi 830054, China
| | - Yunjie Sun
- College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi 830054, China
| | - Xi Chen
- College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi 830054, China
| | - Xiaolin Pang
- College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi 830054, China
| | - Yuhua Ma
- College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi 830054, China; Xinjiang Key Laboratory of Energy Storage and Photoelectrocatalytic Materials, Xinjiang Normal University, Urumqi 830054, China.
| | - Kezhen Qi
- Institute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang 110034, China.
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B doped Bi2O2CO3 hierarchical microspheres: Enhanced photocatalytic performance and reaction mechanism for NO removal. Catal Today 2021. [DOI: 10.1016/j.cattod.2020.11.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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13
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Insight on photocatalytic oxidation of high concentration NO over BiOCl/Bi2WO6 under visible light. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2021.07.045] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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14
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Ye H, Sun S, Chen J, Zhou W, Zhang M, Yuan Z. Optimized strategies for (BiO) 2CO 3 and its application in the environment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:56003-56031. [PMID: 34498190 DOI: 10.1007/s11356-021-16185-3] [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: 12/23/2020] [Accepted: 08/23/2021] [Indexed: 06/13/2023]
Abstract
Photocatalysis is a new type of technology, which has been developed rapidly for solving environmental problems such as wastewater or air pollutants in recent years. Also, the effective performance and non-secondary pollution of photocatalytic technology attract much attention from researchers. As a "sillén" phase oxide, the (BiO)2CO3 (BOC) is a great potential photocatalyst attributing to composed of alternate Bi2O22+ and CO32- layers, which is a benefit for transportation of electrons. Besides, BOC has attracted much attention from researchers because of its excellent characters of non-toxic, environmentally friendly, and low-cost. However, BOC has a defect on wide band gap, which is limited for the usage of visible light, so a great number of published papers focus on the modifications of BOC to improve its photocatalytic efficiency. This article mainly summarizes the modifications of BOC and its application in the environment, guiding for designing BOC-based materials with high photocatalytic activity driven by light. Moreover, the research trend and prospect of BOC photocatalyst were briefly summarized, which could lay the foundation for forming a green and efficient BOC-based photocatalytic reaction system. Importantly, this review might provide a theoretical basis and guidance for further research in this field.
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Affiliation(s)
- Huilan Ye
- College of Materials Engineering, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Shichang Sun
- College of Materials Engineering, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Jia Chen
- College of Materials Engineering, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Weiming Zhou
- College of Materials Engineering, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Mingxin Zhang
- College of Materials Engineering, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Zhanhui Yuan
- College of Materials Engineering, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
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15
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Amadu BD, Xu D, Zhang Q, Zhang Z, Wang Q, Dong Y, Zhang G, Ren Z, Wang P. Synthesis of ultrathin, porous and surface modified Bi2O2CO3 nanosheets by Ni doping for photocatalytic organic pollutants degradation. J Taiwan Inst Chem Eng 2021. [DOI: 10.1016/j.jtice.2021.05.046] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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16
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Ma H, He Y, Dong X, Sheng J, Chen S, Dong F, Xie G, Sun Y. Doping and facet effects synergistically mediated interfacial reaction mechanism and selectivity in photocatalytic NO abatement. J Colloid Interface Sci 2021; 604:624-634. [PMID: 34280760 DOI: 10.1016/j.jcis.2021.07.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 06/30/2021] [Accepted: 07/04/2021] [Indexed: 01/06/2023]
Abstract
The surface atomic coordination and arrangement largely determine photocatalytic properties. Whereas, the intrinsic impact of surface microstructures on the reaction mechanism and pathway is still unclear. Herein, via constructing N-doped Bi2O2CO3 photocatalysts with diverse exposed facets, (1 1 0) and (0 0 1) facet, we testify that the pivotal roles of crystal facet and doping effect on the intermediate production and reactivity for photocatalytic nitric oxide (NO) abatement. The photoreactivity of N-doped Bi2O2CO3 is documented to be higher than that of the pure samples because of the enhanced light absorption and charge transfer. Further in situ probing experiments and theoretical calculations verify that the unique adsorption patterns and activated intermediates on the (1 1 0) facet facilitate the formation of final products and inhibit the generation of toxic NO2 by-product in terms of thermodynamics. More importantly, we found that the selective and nonselective oxidation processes are emerged over (1 1 0) and (0 0 1) facets of Bi2O2CO3, respectively.
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Affiliation(s)
- Hao Ma
- College of Environment and Ecology, Chongqing University, Chongqing 400045, China; Yangtze Delta Region Institute (Huzhou) & School of Resources and Environment, University of Electronic Science and Technology of China, Huzhou 313001, China
| | - Ye He
- Yangtze Delta Region Institute (Huzhou) & School of Resources and Environment, University of Electronic Science and Technology of China, Huzhou 313001, China
| | - Xing'an Dong
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Huzhou 313001, China
| | - Jianping Sheng
- Yangtze Delta Region Institute (Huzhou) & School of Resources and Environment, University of Electronic Science and Technology of China, Huzhou 313001, China
| | - Si Chen
- Yangtze Delta Region Institute (Huzhou) & School of Resources and Environment, University of Electronic Science and Technology of China, Huzhou 313001, China
| | - Fan Dong
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Huzhou 313001, China; State Centre for International Cooperation on Designer Low Carbon and Environmental Materials (CDLCEM), School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Gengxin Xie
- College of Environment and Ecology, Chongqing University, Chongqing 400045, China.
| | - Yanjuan Sun
- Yangtze Delta Region Institute (Huzhou) & School of Resources and Environment, University of Electronic Science and Technology of China, Huzhou 313001, China.
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17
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Yang X, Wang S, Chen T, Yang N, Jiang K, Wang P, Li S, Ding X, Chen H. Chloridion-induced dual tunable fabrication of oxygen-deficient Bi2WO6 atomic layers for deep oxidation of NO. CHINESE JOURNAL OF CATALYSIS 2021. [DOI: 10.1016/s1872-2067(20)63708-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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18
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Song ZY, Li PH, Yang M, Chen SH, Xiao XY, Duan W, Lin CH, Huang XJ. Close band center and rapid adsorption kinetics facilitate selective electrochemical sensing of heavy metal ions. Chem Commun (Camb) 2021; 57:3820-3823. [PMID: 33876131 DOI: 10.1039/d1cc00735a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Combining density functional theory calculation with experiments and kinetics simulation, a multiscale framework describing the influence of reactant-substrate interaction on electrochemical performance was proposed. It was found that the close band center and the rapid adsorption kinetics facilitated the highly selective response of Ni(111) toward Cu(ii), providing a useful tactic to investigate the mechanism of electro-selectivity. This work not only verified that the interaction strength in the ex situ conditions, and kinetics rate could be applied to evaluate the electrochemical selectivity, but also contributed to the options and forecasting of selective electrode materials for heavy metal ions.
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Affiliation(s)
- Zong-Yin Song
- Key Laboratory of Environmental Optics and Technology, And Environmental Materials and Pollution Control Laboratory, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China
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19
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Hu X, Zhao H, Liang Y, Chen F, Li J, Chen R. Broad-spectrum response NCQDs/Bi 2O 2CO 3 heterojunction nanosheets for ciprofloxacin photodegradation: Unraveling the unique roles of NCQDs upon different light irradiation. CHEMOSPHERE 2021; 264:128434. [PMID: 33010628 DOI: 10.1016/j.chemosphere.2020.128434] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 08/31/2020] [Accepted: 09/23/2020] [Indexed: 06/11/2023]
Abstract
N-doped carbon quantum dots (NCQDs) decorated Bi2O2CO3 heterojunction nanosheets have been successfully constructed by a facile hydrothermal method. The obtained NCQDs/Bi2O2CO3 heterojunction exhibits a wide-spectrum absorption ability and remarkably enhanced photocatalytic activities for ciprofloxacin photodegradation from ultraviolet to near-infrared region. The critical roles of NCQDs and two different charge separation and transfer processes of NCQDs/Bi2O2CO3 heterojunction under different light irradiations have been elucidated. Upon UV light irradiation, NCQDs act as electron reservoirs and a Z-scheme charge transfer process between Bi2O2CO3 and NCQDs promotes electrons transfer and •O2- reactive species generation. Under visible and NIR light irradiation, NCQDs act as photosensitizer (hole reservoirs) to harvest solar light and a type-II heterojunction leads to an efficient charge carrier separation and thus high catalytic ability. The mechanisms and pathways of ciprofloxacin degradation driven by different lights are discussed accordingly. This work provides a versatile pathway to well design an efficient wide-spectrum response photocatalyst.
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Affiliation(s)
- Xin Hu
- School of Chemistry and Environmental Engineering, Hubei Key Laboratory of Novel Reactor and Green Chemistry Technology, Wuhan Institute of Technology, Donghu New & High Technology Development Zone, Wuhan, 430205, PR China
| | - Huiping Zhao
- School of Chemistry and Environmental Engineering, Hubei Key Laboratory of Novel Reactor and Green Chemistry Technology, Wuhan Institute of Technology, Donghu New & High Technology Development Zone, Wuhan, 430205, PR China
| | - Ying Liang
- School of Chemical Engineering, Hubei University of Arts and Science, Xiangyang, 441053, PR China
| | - Fengxi Chen
- School of Chemistry and Environmental Engineering, Hubei Key Laboratory of Novel Reactor and Green Chemistry Technology, Wuhan Institute of Technology, Donghu New & High Technology Development Zone, Wuhan, 430205, PR China
| | - Jun Li
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou, 450002, PR China
| | - Rong Chen
- School of Chemistry and Environmental Engineering, Hubei Key Laboratory of Novel Reactor and Green Chemistry Technology, Wuhan Institute of Technology, Donghu New & High Technology Development Zone, Wuhan, 430205, PR China; Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou, 450002, PR China.
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20
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Peng Y, Liu MQ, Zhao NN, Kan PF. Controlled synthesis of Bi 2O 2CO 3 nanorods with enhanced photocatalytic performance. CrystEngComm 2021. [DOI: 10.1039/d1ce00242b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Bi2O2CO3 nanorod is synthesized via solid–gas high temperature method and exhibits excellent photocatalytic activity for degrading salicylic acid.
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Affiliation(s)
- Yin Peng
- Key Laboratory of Electrochemical Clean Energy of Anhui Higher-Education Institutes
- The Key Laboratory of Functional Molecular Solids
- Ministry of Education
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Meng-Qi Liu
- Key Laboratory of Electrochemical Clean Energy of Anhui Higher-Education Institutes
- The Key Laboratory of Functional Molecular Solids
- Ministry of Education
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Nan-Nan Zhao
- Key Laboratory of Electrochemical Clean Energy of Anhui Higher-Education Institutes
- The Key Laboratory of Functional Molecular Solids
- Ministry of Education
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Peng-Fei Kan
- Key Laboratory of Electrochemical Clean Energy of Anhui Higher-Education Institutes
- The Key Laboratory of Functional Molecular Solids
- Ministry of Education
- College of Chemistry and Materials Science
- Anhui Normal University
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21
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Wu Y, Chen C, He S, Zhao X, Huang S, Zeng G, You Y, Cao Y, Niu L. In situ preparation of visible-light-driven carbon quantum dots/NaBiO 3 hybrid materials for the photoreduction of Cr(VI). J Environ Sci (China) 2021; 99:100-109. [PMID: 33183687 DOI: 10.1016/j.jes.2020.06.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 06/10/2020] [Accepted: 06/14/2020] [Indexed: 06/11/2023]
Abstract
In this study, different carbon quantum dots (CQDs)/NaBiO3 hybrid materials were synthesized as photocatalysts to effectively utilize visible light for the photocatalytic degradation of contaminants effectively. These hybrid materials exhibit an enhanced photocatalytic reduction of hexavalent chromium (Cr(VI)) in the aqueous medium. Zero-dimensional nanoparticles of CQDs were embedded within the two-dimensional NaBiO3 nanosheets by the hydrothermal process. Compared with that of the pure NaBiO3 nanosheets, the photocatalytic performance of the hybrid catalysts was significantly high and 6 wt.% CQDs/NaBiO3 catalyst exhibited better photocatalytic performance. We performed the first-principles density functional theory calculations to study the interfacial properties of pure NaBiO3 nanosheets and hybrid photocatalysts, and confirmed the CQDs played an important role in the CQDs/NaBiO3 composites. The experimental results indicated that the enhanced reduction of Cr(VI) was probably due to the high loading of CQDs (electron acceptor) on NaBiO3, which made NaBiO3 nanomaterials to respond in visible light and significantly improved their electron-hole separation efficiency.
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Affiliation(s)
- Yixiao Wu
- School of Environment and Energy, South China University of Technology, Higher Education Mega Center, Guangzhou 510006, China; Qiannan Normal University for Nationalities, Duyun 558000, China
| | - Chunlong Chen
- Physical Sciences Division, Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA; Department of Chemical Engineering, University of Washington, Seattle, WA 98101, USA
| | - Shu He
- School of Environment, Higher Education Mega Center, Harbin Institute of Technology, Harbin 150000, China
| | - Xuesong Zhao
- School of Environment and Energy, South China University of Technology, Higher Education Mega Center, Guangzhou 510006, China
| | - Shaobin Huang
- School of Environment and Energy, South China University of Technology, Higher Education Mega Center, Guangzhou 510006, China.
| | - Gongchang Zeng
- School of Environment and Energy, South China University of Technology, Higher Education Mega Center, Guangzhou 510006, China
| | - Yingying You
- School of Environment and Energy, South China University of Technology, Higher Education Mega Center, Guangzhou 510006, China
| | - Ying Cao
- School of Environment and Energy, South China University of Technology, Higher Education Mega Center, Guangzhou 510006, China
| | - Lishan Niu
- School of Environment and Energy, South China University of Technology, Higher Education Mega Center, Guangzhou 510006, China
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22
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Yuan C, Chen R, Wang J, Wu H, Sheng J, Dong F, Sun Y. La-doping induced localized excess electrons on (BiO) 2CO 3 for efficient photocatalytic NO removal and toxic intermediates suppression. JOURNAL OF HAZARDOUS MATERIALS 2020; 400:123174. [PMID: 32569988 DOI: 10.1016/j.jhazmat.2020.123174] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 06/05/2020] [Accepted: 06/06/2020] [Indexed: 06/11/2023]
Abstract
Photocatalysis technology has been extensively adopted to abate typical air pollutants. Nevertheless, it is a challenge to develop photocatalysts aiming to simultaneously improve photocatalytic selectivity and efficiency. In this study, to improve the photocatalytic selectivity and the performance of (BiO)2CO3 in the oxidation of NO to target products (NO2- /NO3-), we developed a novel method to construct La-doped (BiO)2CO3 (La-BOC) for forming localized excess electrons (Ex) on (BiO)2CO3 surface. The results indicate that the Ex could effectively accelerate the activation of reactants and promote charge separation and transfer. Under visible light, the gas molecules could capture the Ex and get activated to produce reactive oxygen species (ROS) with high oxidation ability, which enables complete oxidation of NO to target products instead of producing other toxic by-products. Due to the functionality of the Ex, the photocatalytic selectivity and efficiency of La-BOC have been synchronously improved. Combining experimental and theoretical methods, this work unravels the pathway of charge carriers transportation/transformation and elucidates the photocatalytic NO oxidation mechanism. The present work could provide a novel method to improve photocatalytic selectivity and activity for safe air pollutant abatement.
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Affiliation(s)
- Chaowei Yuan
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China; School of Resources and Environment, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Ruimin Chen
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China; School of Resources and Environment, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Jiaodong Wang
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China; School of Resources and Environment, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Huizhong Wu
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China; School of Resources and Environment, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Jianping Sheng
- School of Resources and Environment, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Fan Dong
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China; School of Resources and Environment, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Yanjuan Sun
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China; School of Resources and Environment, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China.
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23
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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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24
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Liao J, Li K, Ma H, Dong F, Zeng X, Sun Y. Oxygen vacancies on the BiOCl surface promoted photocatalytic complete NO oxidation via superoxide radicals. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2020.03.081] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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25
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26
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Sheng S, Jin S, Cui K. Thermal Decomposition of Nanostructured Bismuth Subcarbonate. MATERIALS 2020; 13:ma13194287. [PMID: 32992863 PMCID: PMC7579297 DOI: 10.3390/ma13194287] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 09/19/2020] [Accepted: 09/23/2020] [Indexed: 11/16/2022]
Abstract
Nanostructured (BiO)2CO3 samples were prepared, and their thermal decomposition behaviors were investigated by thermogravimetric analysis under atmospheric conditions. The method of preparation and Ca2+ doping could affect the morphologies of products and quantity of defects, resulting in different thermal decomposition mechanisms. The (BiO)2CO3 nanoplates decomposed at 300–500 °C with an activation energy of 160–170 kJ/mol. Two temperature zones existed in the thermal decomposition of (BiO)2CO3 and Ca-(BiO)2CO3 nanowires. The first one was caused by the decomposition of (BiO)4(OH)2CO3 impurities and (BiO)2CO3 with surface defects, with an activation energy of 118–223 kJ/mol, whereas the second one was attributed to the decomposition of (BiO)2CO3 in the core of nanowires, with an activation energy of 230–270 kJ/mol for the core of (BiO)2CO3 nanowires and 210–223 kJ/mol for the core of Ca-(BiO)2CO3 nanowires. Introducing Ca2+ ions into (BiO)2CO3 nanowires improved their thermal stability and accelerated the decomposition of (BiO)2CO3 in the decomposition zone.
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Affiliation(s)
- Su Sheng
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; (S.S.); (S.J.)
- Key Laboratory for Mineral Materials and Application of Hunan Province, Central South University, Changsha 410083, China
| | - Shengming Jin
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; (S.S.); (S.J.)
- Key Laboratory for Mineral Materials and Application of Hunan Province, Central South University, Changsha 410083, China
| | - Kuixin Cui
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; (S.S.); (S.J.)
- Key Laboratory for Mineral Materials and Application of Hunan Province, Central South University, Changsha 410083, China
- Correspondence:
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27
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Yang X, Wang Y, He N, Wan W, Zhang F, Zhai B, Zhang P. One-step hydrothermal synthesis of hierarchical nanosheet-assembled Bi 2O 2CO 3 microflowers with a {001} dominant facet and their superior photocatalytic performance. NANOTECHNOLOGY 2020; 31:375604. [PMID: 32454467 DOI: 10.1088/1361-6528/ab967a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Using citric acid (CA) and 1,5-naphthalenedisulfonic acid (NDSA) as the structure-directing agent, a hierarchical flower-like Bi2O2CO3 product is successfully prepared via a simple one-step hydrothermal synthesis, which is spirally assembled by the {001} facet-dominated nanosheets. It is testified that the additive CA plays an important inducing role in forming the chemical composition of Bi2O2CO3, the nanosized sheet-type subunits, and the exposure of the {001} facet, while the NDSA greatly improves the dispersity and porous structure of the Bi2O2CO3 microflower. Due to the nano-size effect and distortion of surface Bi-O bonds, the Bi2O2CO3 microflower could be excited by the visible light to exhibit a superior photocatalytic performance in the degradation of tetracycline (TC). Besides, it is found the exposed {001} facet of Bi2O2CO3 would preferentially generate holes during the illumination process, thus enhancing the photooxidative activity of the Bi2O2CO3 microflower. Finally, the structural and optical features of the Bi2O2CO3 microflower have been discussed in detail, and its photocatalytic mechanism has also been proposed in this work.
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Affiliation(s)
- Xiaoyan Yang
- School of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, People's Republic of China
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28
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Liu Z, Gu W, Teng F, Yang X, Jiang W. Facile synthesis and greatly improved photocatalytic activity of F-Bi2O2CO3 nanotubes with novel hierarchical wall. J Fluor Chem 2020. [DOI: 10.1016/j.jfluchem.2020.109557] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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29
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Tang X, Huang Z, Cao Y, Zhang R, Dong F, Zhou Y. Mo Promotes Interfacial Interaction and Induces Oxygen Vacancies in 2D/2D of Mo-g-C3N4 and Bi2O2CO3 Photocatalyst for Enhanced NO Oxidation. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c00777] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xiao Tang
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China
- The Center of New Energy Materials and Technology, School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, China
| | - Zeai Huang
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China
- The Center of New Energy Materials and Technology, School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, China
| | - Yuehan Cao
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China
- The Center of New Energy Materials and Technology, School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, China
| | - Ruiyang Zhang
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China
- The Center of New Energy Materials and Technology, School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, China
| | - Fan Dong
- The Center of New Energy Materials and Technology, School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, China
- Research Center for Environmental Science & Technology, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Ying Zhou
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China
- The Center of New Energy Materials and Technology, School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, China
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30
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Lei B, Cui W, Sheng J, Wang H, Chen P, Li J, Sun Y, Dong F. Synergistic effects of crystal structure and oxygen vacancy on Bi 2O 3 polymorphs: intermediates activation, photocatalytic reaction efficiency, and conversion pathway. Sci Bull (Beijing) 2020; 65:467-476. [PMID: 36747436 DOI: 10.1016/j.scib.2020.01.007] [Citation(s) in RCA: 79] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 12/04/2019] [Accepted: 12/09/2019] [Indexed: 02/08/2023]
Abstract
This work unraveled the synergistic effects of crystal structure and oxygen vacancy on the photocatalytic activity of Bi2O3 polymorphs at an atomic level for the first time. The artificial oxygen vacancy is introduced into α-Bi2O3 and β-Bi2O3 via a facile method to engineer the band structures and transportation of carriers and redox reaction for highly enhanced photocatalysis. After the optimization, the photocatalytic NO removal ratio on defective β-Bi2O3 was increased from 25.2% to 52.0% under visible light irradiation. On defective α-Bi2O3, the NO removal ratio is just increased from 7.3% to 20.1%. The difference in the activity enhancement is associated with the different structure of crystal phase and oxygen vacancy. The density functional theory (DFT) calculation and experimental results confirm that the oxygen vacancy in α-Bi2O3 and β-Bi2O3 could promote the activation of reactants and intermediate as active centers. The crystal structure and oxygen vacancy could synergistically regulate the electrons transfer pathway. On defective β-Bi2O3 with tunnel structure, the reactants activation and charge transfer were more efficient than that on α-Bi2O3 with zigzag-type configuration because the defect structures on the surface of α-Bi2O3 and β-Bi2O3 were different. Moreover, the in situ FT-IR revealed the mechanisms of photocatalytic NO oxidation. The photocatalytic NO conversion pathway on α-Bi2O3 and β-Bi2O3 can be tuned by the different surface defect structures. This work could provide a novel strategy to regulate the photocatalytic activity and conversion pathway via the synergistic effects of crystal structure and oxygen vacancy.
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Affiliation(s)
- Ben Lei
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China; Research Center for Environmental Science & Technology, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Wen Cui
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China; The Center of New Energy Materials and Technology, School of Materials Science and Engineering, Southwest Petroleum University, Chengdu 610500, China
| | - Jianping Sheng
- Research Center for Environmental Science & Technology, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Hong Wang
- Research Center for Environmental Science & Technology, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Peng Chen
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China; The Center of New Energy Materials and Technology, School of Materials Science and Engineering, Southwest Petroleum University, Chengdu 610500, China
| | - Jieyuan Li
- College of Architecture and Environment, Sichuan University, Chengdu 610065, China
| | - Yanjuan Sun
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China; Research Center for Environmental Science & Technology, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Fan Dong
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China; Research Center for Environmental Science & Technology, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China.
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31
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Lan Y, Li Z, Xie W, Li D, Yan G, Guo S, Pan C, Wu J. In situ fabrication of I-doped Bi 2O 2CO 3/g-C 3N 4 heterojunctions for enhanced photodegradation activity under visible light. JOURNAL OF HAZARDOUS MATERIALS 2020; 385:121622. [PMID: 31806444 DOI: 10.1016/j.jhazmat.2019.121622] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Revised: 10/30/2019] [Accepted: 11/05/2019] [Indexed: 06/10/2023]
Abstract
Iodine-doped Bi2O2CO3/g-C3N4 heterojunctions consisting of graphitic carbon nitride (g-C3N4) and iodine-doped bismutite (Bi2O2CO3) components were successfully in situ synthesized by a one-pot hydrothermal method. Characterizations such as X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and scanning electron microscope (SEM) demonstrated iodine was favorably doped into the Bi2O2CO3 component, of which the {001} facets grew in situ from {002} facets of g-C3N4 for the heterostructure construction of I-doped Bi2O2CO3/g-C3N4 (IB/CN). The photocatalytic activity of catalysts was evaluated by the degradation efficiency of 1,5-dihydroxynaphthalene under visible light. 1.5-IB/CN with a reasonable iodine doping amount (Bi: I molar ratio = 1.0: 1.5) exhibited the superior photodegradation performance compared to Bi2O2CO3, achieving an 85.5% removal ratio after 100 min illumination. The enhanced activity of 1.5-IB/CN was attributed to both of the heterostructure that promoted the separation of photoinduced carriers and iodine doping that tuned the bandgap for sufficient visible-light harvesting. The degradation intermediates of 1,5-dihydroxynaphthalene in the system were determined and its possible photodegradation pathway was proposed in detail. This study provides a rational approach for enhancing the visible-light catalytic activity of wide-bandgap Bi2O2CO3, and reveals a new perspective on the removal mechanism of organic pollutants.
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Affiliation(s)
- Yunlong Lan
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Process and Control, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, China; State Key Laboratory of Heavy Oil Processing, Beijing Key Laboratory of Oil and Gas Pollution Control, China University of Petroleum, Beijing 102249, China
| | - Zesheng Li
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Process and Control, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, China
| | - Wenyu Xie
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Process and Control, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, China
| | - Dehao Li
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Process and Control, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, China.
| | - Guangxu Yan
- State Key Laboratory of Heavy Oil Processing, Beijing Key Laboratory of Oil and Gas Pollution Control, China University of Petroleum, Beijing 102249, China
| | - Shaohui Guo
- State Key Laboratory of Heavy Oil Processing, Beijing Key Laboratory of Oil and Gas Pollution Control, China University of Petroleum, Beijing 102249, China.
| | - Chao Pan
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Process and Control, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, China
| | - Jingwei Wu
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Process and Control, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, China
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32
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Li JH, Ren J, Liu Y, Mu HY, Liu RH, Zhao J, Chen LJ, Li FT. In situ synthesis of Cl-doped Bi2O2CO3 and its enhancement of photocatalytic activity by inducing generation of oxygen vacancies. Inorg Chem Front 2020. [DOI: 10.1039/d0qi00673d] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cl-Doped Bi2O2CO3 is prepared using ionic liquids as dopants and the oxygen-vacancy-induced photocatalytic mechanism is revealed.
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Affiliation(s)
- Jie-hao Li
- College of Science
- Hebei University of Science and Technology
- Shijiazhuang 050018
- China
| | - Jie Ren
- College of Science
- Hebei University of Science and Technology
- Shijiazhuang 050018
- China
| | - Ying Liu
- College of Science
- Hebei University of Science and Technology
- Shijiazhuang 050018
- China
| | - Hui-ying Mu
- College of Science
- Hebei University of Science and Technology
- Shijiazhuang 050018
- China
| | - Rui-hong Liu
- College of Science
- Hebei University of Science and Technology
- Shijiazhuang 050018
- China
| | - Jun Zhao
- College of Science
- Hebei University of Science and Technology
- Shijiazhuang 050018
- China
| | - Lan-ju Chen
- College of Science
- Hebei University of Science and Technology
- Shijiazhuang 050018
- China
| | - Fa-tang Li
- College of Science
- Hebei University of Science and Technology
- Shijiazhuang 050018
- China
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33
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Wang J, Cui W, Chen R, He Y, Yuan C, Sheng J, Li J, Zhang Y, Dong F, Sun Y. OH/Na co-functionalized carbon nitride: directional charge transfer and enhanced photocatalytic oxidation ability. Catal Sci Technol 2020. [DOI: 10.1039/c9cy02048a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Graphitic carbon nitride (g-C3N4, CN for short) is a compelling visible-light responsive photocatalyst.
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34
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Ran M, Wang H, Cui W, Li J, Chen P, Sun Y, Sheng J, Zhou Y, Zhang Y, Dong F. Light-Induced Generation and Regeneration of Oxygen Vacancies in BiSbO 4 for Sustainable Visible Light Photocatalysis. ACS APPLIED MATERIALS & INTERFACES 2019; 11:47984-47991. [PMID: 31802653 DOI: 10.1021/acsami.9b18154] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Oxygen vacancy (OV)-containing semiconductor photocatalysts have been extensively studied and applied in environmental and energy fields, but there are a few studies concerning the mechanisms of inactivation and regeneration of OVs to prevent the catalysts from deactivation. In this paper, we put forward a novel in situ method to introduce the OVs into BiSbO4 (BiSbO4-OV) via UV-light-induced breaking down of Bi-O and Sb-O bonds. The formation of OVs could broaden the photoresponse range and improve the charge carrier separation as confirmed by density functional theory calculation and UV and photoluminescence spectroscopy. The unique electronic structure of OVs endowed BiSbO4 with high visible light photocatalytic NO activity. It was significant to reveal that oxygen in the air could fill the OV sites during the photocatalytic reaction and the consumption of the OVs led to the direct deactivation of BiSbO4-OV. By re-irradiation of the deactivated photocatalysts, BiSbO4-OV could get back to its initial state, realizing the refreshment of OVs for sustainable photocatalysis. Additionally, the visible light photocatalytic NO conversion pathway on BiSbO4-OV was uncovered via in situ diffuse reflectance infrared Fourier transform spectroscopy based on the identification of the reaction intermediates and products. The light-induced generation and regeneration of OVs could also be extended to other semiconductors for sustainable visible light photocatalysis.
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Affiliation(s)
- Maoxi Ran
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources , Chongqing Technology and Business University , Chongqing 400067 , China
- Research Center for Environmental Science & Technology, Institute of Fundamental and Frontier Sciences , University of Electronic Science and Technology of China , Chengdu 611731 , China
| | - Hong Wang
- Research Center for Environmental Science & Technology, Institute of Fundamental and Frontier Sciences , University of Electronic Science and Technology of China , Chengdu 611731 , China
| | - Wen Cui
- Research Center for Environmental Science & Technology, Institute of Fundamental and Frontier Sciences , University of Electronic Science and Technology of China , Chengdu 611731 , China
- The Center of New Energy Materials and Technology, School of Materials Science and Engineering , Southwest Petroleum University , Chengdu 610500 , China
| | - Jieyuan Li
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources , Chongqing Technology and Business University , Chongqing 400067 , China
| | - Peng Chen
- Research Center for Environmental Science & Technology, Institute of Fundamental and Frontier Sciences , University of Electronic Science and Technology of China , Chengdu 611731 , China
- The Center of New Energy Materials and Technology, School of Materials Science and Engineering , Southwest Petroleum University , Chengdu 610500 , China
| | - Yanjuan Sun
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources , Chongqing Technology and Business University , Chongqing 400067 , China
- Research Center for Environmental Science & Technology, Institute of Fundamental and Frontier Sciences , University of Electronic Science and Technology of China , Chengdu 611731 , China
| | - Jianping Sheng
- Research Center for Environmental Science & Technology, Institute of Fundamental and Frontier Sciences , University of Electronic Science and Technology of China , Chengdu 611731 , China
| | - Ying Zhou
- The Center of New Energy Materials and Technology, School of Materials Science and Engineering , Southwest Petroleum University , Chengdu 610500 , China
| | - Yuxin Zhang
- College of Materials Science and Engineering , Chongqing University , Chongqing 400044 , China
| | - Fan Dong
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources , Chongqing Technology and Business University , Chongqing 400067 , China
- Research Center for Environmental Science & Technology, Institute of Fundamental and Frontier Sciences , University of Electronic Science and Technology of China , Chengdu 611731 , China
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35
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Wei S, Wang F, Yan P, Dan M, Cen W, Yu S, Zhou Y. Interfacial coupling promoting hydrogen sulfide splitting on the staggered type II g-C3N4/r-TiO2 heterojunction. J Catal 2019. [DOI: 10.1016/j.jcat.2019.07.024] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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36
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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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37
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Ran M, Chen P, Li J, Cui W, Li J, He Y, Sheng J, Sun Y, Dong F. Promoted reactants activation and charge separation leading to efficient photocatalytic activity on phosphate/potassium co-functionalized carbon nitride. CHINESE CHEM LETT 2019. [DOI: 10.1016/j.cclet.2019.03.016] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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38
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Zhao Z, Cao Y, Dong F, Wu F, Li B, Zhang Q, Zhou Y. The activation of oxygen through oxygen vacancies in BiOCl/PPy to inhibit toxic intermediates and enhance the activity of photocatalytic nitric oxide removal. NANOSCALE 2019; 11:6360-6367. [PMID: 30888389 DOI: 10.1039/c8nr10356a] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Photocatalysis is regarded as a promising technology for indoor air purification. Despite much effort, the inhibition of toxic intermediates and the promotion of nitric oxide (NO) oxidation activity still limit real applications due to catalyst design constraints. In order to circumvent this issue, oxygen vacancies were fabricated through a strong interaction between BiOCl and polypyrrole (PPy) based on computational predictions. Oxygen vacancies worked as sites to activate O2 molecules, and the relative barrier energies of NO oxidation were significantly reduced due to the O2 activation process. With the oxygen vacancy modification, the oxidizability of BiOCl was improved, and the generation of the superoxide radical (˙O2-) was promoted on BiOCl/PPy, while the hydroxyl radical (˙OH) remained unchanged under visible light irradiation. As a result, the efficiency of NO oxidation increased from 12% to 28%, while the NO2 production was inhibited completely. Finally, in situ diffuse reflectance infrared Fourier-transform spectroscopy (DRIFTS) investigations were conducted to shed light on the mechanism of the NO oxidation process. This work provides an in-depth understanding of the interaction between oxygen vacancies and O2 during the NO oxidation process, which offers a scheme to control the oxidation reaction.
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Affiliation(s)
- Ziyan Zhao
- State Key Laboratory of Oil and Gas Reservoir and Exploitation, Southwest Petroleum University, Chengdu 610500, China.
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39
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Li J, Ran M, Chen P, Cui W, Li J, Sun Y, Jiang G, Zhou Y, Dong F. Controlling the secondary pollutant on B-doped g-C3N4 during photocatalytic NO removal: a combined DRIFTS and DFT investigation. Catal Sci Technol 2019. [DOI: 10.1039/c9cy01030k] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The mechanisms of enhanced photocatalysis efficiency and suppression of toxic intermediate production during photocatalytic NO oxidation on B-doped g-C3N4 were revealed.
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Affiliation(s)
- Jiarui Li
- Engineering Research Center for Waste Oil Recovery Technology and Equipment of Ministry of Education
- Chongqing Key Laboratory of Catalysis and New Environmental Materials
- College of Environment and Resources
- Chongqing Technology and Business University
- Chongqing 400067
| | - Maoxi Ran
- Engineering Research Center for Waste Oil Recovery Technology and Equipment of Ministry of Education
- Chongqing Key Laboratory of Catalysis and New Environmental Materials
- College of Environment and Resources
- Chongqing Technology and Business University
- Chongqing 400067
| | - Peng Chen
- Engineering Research Center for Waste Oil Recovery Technology and Equipment of Ministry of Education
- Chongqing Key Laboratory of Catalysis and New Environmental Materials
- College of Environment and Resources
- Chongqing Technology and Business University
- Chongqing 400067
| | - Wen Cui
- Research Center for Environmental Science & Technology
- Institute of Fundamental and Frontier Sciences
- University of Electronic Science and Technology of China
- Chengdu 611731
- China
| | - Jieyuan Li
- Research Center for Environmental Science & Technology
- Institute of Fundamental and Frontier Sciences
- University of Electronic Science and Technology of China
- Chengdu 611731
- China
| | - Yanjuan Sun
- Engineering Research Center for Waste Oil Recovery Technology and Equipment of Ministry of Education
- Chongqing Key Laboratory of Catalysis and New Environmental Materials
- College of Environment and Resources
- Chongqing Technology and Business University
- Chongqing 400067
| | - Guangming Jiang
- Engineering Research Center for Waste Oil Recovery Technology and Equipment of Ministry of Education
- Chongqing Key Laboratory of Catalysis and New Environmental Materials
- College of Environment and Resources
- Chongqing Technology and Business University
- Chongqing 400067
| | - Ying Zhou
- Research Center for Environmental Science & Technology
- Institute of Fundamental and Frontier Sciences
- University of Electronic Science and Technology of China
- Chengdu 611731
- China
| | - Fan Dong
- Engineering Research Center for Waste Oil Recovery Technology and Equipment of Ministry of Education
- Chongqing Key Laboratory of Catalysis and New Environmental Materials
- College of Environment and Resources
- Chongqing Technology and Business University
- Chongqing 400067
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40
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Li J, Yan P, Li K, Cen W, Yu X, Yuan S, Chu Y, Wang Z. Generation and transformation of ROS on g-C3N4 for efficient photocatalytic NO removal: A combined in situ DRIFTS and DFT investigation. CHINESE JOURNAL OF CATALYSIS 2018. [DOI: 10.1016/s1872-2067(18)63097-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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41
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Hu L, He H, Xia D, Huang Y, Xu J, Li H, He C, Yang W, Shu D, Wong PK. Highly Efficient Performance and Conversion Pathway of Photocatalytic CH 3SH Oxidation on Self-Stabilized Indirect Z-Scheme g-C 3N 4/I 3--BiOI. ACS APPLIED MATERIALS & INTERFACES 2018; 10:18693-18708. [PMID: 29732890 DOI: 10.1021/acsami.8b03250] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A self-stabilized Z-scheme porous g-C3N4/I3--containing BiOI ultrathin nanosheets (g-C3N4/I3--BiOI) heterojunction photocatalyst with I3-/I- redox mediator was successfully synthesized by a facile solvothermal method coupling with light illumination. The structure and optical properties of g-C3N4/I3--BiOI composites were systematically characterized by means of X-ray diffraction, scanning electron microscopy, transmission electron microscopy, Fourier transform infrared, X-ray photoelectron spectroscopy, N2 adsorption/desorption, UV-vis diffuse reflectance spectrum, and photoluminescence. The g-C3N4/I3--BiOI composites, with a heterojunction between porous g-C3N4 and BiOI ultrathin nanosheets, were first applied for the photocatalytic elimination of ppm-leveled CH3SH under light-emitting diode visible light illumination. The g-C3N4/I3--BiOI heterojunction with 10% g-C3N4 showed a dramatically enhanced photocatalytic activity in the removal of CH3SH compared with pure BiOI and g-C3N4 due to its effective interfacial charge transfer and separation. The adsorption and photocatalytic oxidation of CH3SH over g-C3N4/I3--BiOI were deeply explored by in situ diffuse reflectance infrared Fourier transform spectroscopy, and the intermediates and conversion pathways were elucidated and compared. Furthermore, on the basis of reactive species trapping, electron spin resonance and Mott-Schottky experiments, it was revealed that the responsible reactive species for catalytic CH3SH composition were h+, •O2-, and 1O2; thus, the g-C3N4/I3--BiOI heterojunction followed an indirect all-solid state Z-scheme charge-transfer mode with self-stabilized I3-/I- pairs as redox mediator, which could accelerate the separation of photogenerated charge and enhance the redox reaction power of charged carriers simultaneously.
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Affiliation(s)
- Lingling Hu
- School of Environmental Science and Engineering , Sun Yat-sen University , Guangzhou 510275 , China
| | - Huanjunwa He
- School of Environmental Science and Engineering , Sun Yat-sen University , Guangzhou 510275 , China
| | - Dehua Xia
- School of Environmental Science and Engineering , Sun Yat-sen University , Guangzhou 510275 , China
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology , Guangzhou 510275 , China
| | - Yajing Huang
- School of Environmental Science and Engineering , Sun Yat-sen University , Guangzhou 510275 , China
| | - Jiarong Xu
- School of Environmental Science and Engineering , Sun Yat-sen University , Guangzhou 510275 , China
| | - Haoyue Li
- School of Environmental Science and Engineering , Sun Yat-sen University , Guangzhou 510275 , China
| | - Chun He
- School of Environmental Science and Engineering , Sun Yat-sen University , Guangzhou 510275 , China
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology , Guangzhou 510275 , China
| | - Wenjing Yang
- School of Environmental Science and Engineering , Sun Yat-sen University , Guangzhou 510275 , China
| | - Dong Shu
- Key Laboratory of Technology on Electrochemical Energy Storage and Power Generation in Guangdong Universities, School of Chemistry and Environment , South China Normal University , Guangzhou 510006 , China
| | - Po Keung Wong
- School of Life Sciences , The Chinese University of Hong Kong , Shatin, NT , Hong Kong SAR 999077 , China
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42
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Li Y, Sun Y, Ho W, Zhang Y, Huang H, Cai Q, Dong F. Highly enhanced visible-light photocatalytic NO x purification and conversion pathway on self-structurally modified g-C 3N 4 nanosheets. Sci Bull (Beijing) 2018; 63:609-620. [PMID: 36658881 DOI: 10.1016/j.scib.2018.04.009] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Revised: 04/02/2018] [Accepted: 04/10/2018] [Indexed: 01/21/2023]
Abstract
The unmodified graphitic carbon nitride (g-C3N4) suffers from low photocatalytic activity because of the unfavourable structure. In the present work, we reported a simple self-structural modification strategy to optimize the microstructure of g-C3N4 and obtained graphene-like g-C3N4 nanosheets with porous structure. In contrast to traditional thermal pyrolysis preparation of g-C3N4, the present thermal condensation was improved via pyrolysis of thiourea in an alumina crucible without a cover, followed by secondary heat treatment. The popcorn-like formation and layer-by-layer thermal exfoliation of graphene-like porous g-C3N4 was proposed to explain the formation mechanism. The photocatalytic removal performance of both NO and NO2 with the graphene-like porous g-C3N4 for was significantly enhanced by self-structural modification. Trapping experiments and in-situ diffuse reflectance infrared fourier transform spectroscopy (DRIFTS) measurement were conducted to detect the active species during photocatalysis and the conversion pathway of g-C3N4 photocatalysis for NOx purification was revealed. The photocatalytic activity of graphene-like porous g-C3N4 was highly enhanced due to the improved charge separation and increased oxidation capacity of the O2- radicals and holes. This work could not only provide a novel self-structural modification for design of highly efficient photocatalysts, but also offer new insights into the mechanistic understanding of g-C3N4 photocatalysis.
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Affiliation(s)
- Yuhan Li
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, Engineering Research Center for Waste Oil Recovery Technology and Equipment, Ministry of Education, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China; Department of Science and Environmental Studies, The Center for Education in Environmental Sustainability, The Education University of Hong Kong, Hong Kong, China
| | - Yanjuan Sun
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, Engineering Research Center for Waste Oil Recovery Technology and Equipment, Ministry of Education, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China
| | - Wingkei Ho
- Department of Science and Environmental Studies, The Center for Education in Environmental Sustainability, The Education University of Hong Kong, Hong Kong, China
| | - Yuxin Zhang
- College of Materials Science and Engineering, National Key Laboratory of Fundamental Science of Micro/Nano-Devices and System Technology, Chongqing University, Chongqing 400044, China
| | - Hongwei Huang
- School of Materials Science and Technology, National Laboratory of Mineral Materials, China University of Geosciences, Beijing 100083, China
| | - Qiang Cai
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, Engineering Research Center for Waste Oil Recovery Technology and Equipment, Ministry of Education, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China
| | - Fan Dong
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, Engineering Research Center for Waste Oil Recovery Technology and Equipment, Ministry of Education, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China.
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43
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Yang Y, Zhang Q, Zhang R, Ran T, Wan W, Zhou Y. Compressible and Recyclable Monolithic g-C 3N 4/Melamine Sponge: A Facile Ultrasonic-Coating Approach and Enhanced Visible-Light Photocatalytic Activity. Front Chem 2018; 6:156. [PMID: 29868559 PMCID: PMC5968098 DOI: 10.3389/fchem.2018.00156] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 04/19/2018] [Indexed: 12/03/2022] Open
Abstract
Powdery photocatalysts seriously restrict their practical application due to the difficult recycle and low photocatalytic activity. In this work, a monolithic g-C3N4/melamine sponge (g-C3N4/MS) was successfully fabricated by a cost-effective ultrasonic-coating route, which is easy to achieve the uniform dispersion and firm loading of g-C3N4 on MS skeleton. The monolithic g-C3N4/MS entirely inherits the porous structure of MS and results in a larger specific surface area (SSA) than its powdery counterpart. Benefit from this monolithic structure, g-C3N4/MS gains more exposed active sites, enhanced visible-light absorption and separation of photogenerated carriers, thus achieving noticeable photocatalytic activity on nitric oxide (NO) removal and CO2 reduction. Specifically, NO removal ratio is as high as 78.6% which is 4.5 times higher than that of the powdery g-C3N4, and yield rate of CO and CH4 attains 7.48 and 3.93 μmol g−1 h−1. Importantly, the features of low-density, high porosity, good elasticity, and firmness, not only endow g-C3N4/MS with flexibility in various environmental applications, but also make it easy to recycle and stable for long-time application. Our work provides a feasible approach to fabricate novel monolithic photocatalysts with large-scale production and application.
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Affiliation(s)
- Ye Yang
- The Center of New Energy Materials and Technology, School of Materials Science and Engineering, Southwest Petroleum University, Chengdu, China.,State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, China
| | - Qian Zhang
- The Center of New Energy Materials and Technology, School of Materials Science and Engineering, Southwest Petroleum University, Chengdu, China
| | - Ruiyang Zhang
- The Center of New Energy Materials and Technology, School of Materials Science and Engineering, Southwest Petroleum University, Chengdu, China
| | - Tao Ran
- The Center of New Energy Materials and Technology, School of Materials Science and Engineering, Southwest Petroleum University, Chengdu, China
| | - Wenchao Wan
- The Center of New Energy Materials and Technology, School of Materials Science and Engineering, Southwest Petroleum University, Chengdu, China
| | - Ying Zhou
- The Center of New Energy Materials and Technology, School of Materials Science and Engineering, Southwest Petroleum University, Chengdu, China.,State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, China
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44
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Xiong T, Wang H, Zhou Y, Sun Y, Cen W, Huang H, Zhang Y, Dong F. KCl-mediated dual electronic channels in layered g-C 3N 4 for enhanced visible light photocatalytic NO removal. NANOSCALE 2018; 10:8066-8074. [PMID: 29671458 DOI: 10.1039/c8nr01433g] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Limited by relatively fast charge carrier recombination, the performance of g-C3N4 photocatalysts is still far below what is expected. Herein, we tackle this challenge by introducing K and Cl ions into the interlayer of graphitic carbon nitride (KCl-doped g-C3N4). It is found that K and Cl ions coexisting in g-C3N4 could function as a dual channel for electron and hole transfer, respectively. As-prepared KCl-doped g-C3N4 shows a narrow bandgap, positive-shifted valence band edge and lower barriers for charge transfer between layers. Under visible light irradiation, the electrons created in the g-C3N4 layer are transferred by K ions, while the holes are transferred via Cl ions to induce photocatalysis. As expected, the enhanced visible light absorption, strong oxidization ability of the valence band holes and the prolonged lifetime of the charge carriers benefiting from the dual electronic channel endow KCl-doped g-C3N4 with a superior photocatalytic performance for NOx removal, exceeding the performances of both bare g-C3N4 and K doped g-C3N4. An in situ DRIFTS investigation reveals the reaction mechanism of the photocatalytic NO oxidation. The perspective of the dual channel for charge transfer could present a new design concept to effectively steer the efficiency of photocatalysts.
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Affiliation(s)
- Ting Xiong
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China.
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Liao J, Chen L, Sun M, Lei B, Zeng X, Sun Y, Dong F. Improving visible-light-driven photocatalytic NO oxidation over BiOBr nanoplates through tunable oxygen vacancies. CHINESE JOURNAL OF CATALYSIS 2018. [DOI: 10.1016/s1872-2067(18)63056-6] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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46
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Huang Y, Li K, Lin Y, Tong Y, Liu H. Enhanced Efficiency of Electron-Hole Separation in Bi2
O2
CO3
for Photocatalysis via Acid Treatment. ChemCatChem 2018. [DOI: 10.1002/cctc.201800101] [Citation(s) in RCA: 99] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yongchao Huang
- Research Institute of Environmental Studies at Greater Bay, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou Higher Education Mega Center; Guangzhou University; Outer Ring Road No. 230 Guangzhou 510006 P.R. China
| | - Kunshan Li
- Research Institute of Environmental Studies at Greater Bay, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou Higher Education Mega Center; Guangzhou University; Outer Ring Road No. 230 Guangzhou 510006 P.R. China
| | - Ying Lin
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, the Key Lab of Low-Carbon Chemistry and Energy Conservation of Guangdong Province; School of Chemistry; Sun Yat-sen University; Guangzhou 510275 P.R. China
| | - Yexiang Tong
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, the Key Lab of Low-Carbon Chemistry and Energy Conservation of Guangdong Province; School of Chemistry; Sun Yat-sen University; Guangzhou 510275 P.R. China
| | - Hong Liu
- Research Institute of Environmental Studies at Greater Bay, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou Higher Education Mega Center; Guangzhou University; Outer Ring Road No. 230 Guangzhou 510006 P.R. China
- Chongqing Institute of Green and Intelligent Technology; Chinese Academy of Sciences; Chongqing 401122 P.R. China
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Enhanced photocatalytic degradation for organic pollutants by a novel m-Bi2O4/Bi2O2CO3 photocatalyst under visible light. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-018-3293-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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48
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Dong X, Zhang W, Sun Y, Li J, Cen W, Cui Z, Huang H, Dong F. Visible-light-induced charge transfer pathway and photocatalysis mechanism on Bi semimetal@defective BiOBr hierarchical microspheres. J Catal 2018. [DOI: 10.1016/j.jcat.2017.10.004] [Citation(s) in RCA: 181] [Impact Index Per Article: 30.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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49
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Cui W, Li J, Dong F, Sun Y, Jiang G, Cen W, Lee SC, Wu Z. Highly Efficient Performance and Conversion Pathway of Photocatalytic NO Oxidation on SrO-Clusters@Amorphous Carbon Nitride. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:10682-10690. [PMID: 28817265 DOI: 10.1021/acs.est.7b00974] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
This work demonstrates the first molecular-level conversion pathway of NO oxidation over a novel SrO-clusters@amorphous carbon nitride (SCO-ACN) photocatalyst, which is synthesized via copyrolysis of urea and SrCO3. The inclusion of SrCO3 is crucial in the formation of the amorphous carbon nitride (ACN) and SrO clusters by attacking the intralayer hydrogen bonds at the edge sites of graphitic carbon nitride (CN). The amorphous nature of ACN can promote the transportation, migration, and transformation of charge carriers on SCO-ACN. And the SrO clusters are identified as the newly formed active centers to facilitate the activation of NO via the formation of Sr-NOδ(+), which essentially promotes the conversion of NO to the final products. The combined effects of the amorphous structure and SrO clusters impart outstanding photocatalytic NO removal efficiency to the SCO-ACN under visible-light irradiation. To reveal the photocatalytic mechanism, the adsorption and photocatalytic oxidation of NO over CN and SCO-ACN are analyzed by in situ DRIFTS, and the intermediates and conversion pathways are elucidated and compared. This work presents a novel in situ DRIFTS-based strategy to explore the photocatalytic reaction pathway of NO oxidation, which is quite beneficial to understand the mechanism underlying the photocatalytic reaction and advance the development of photocatalytic technology for environmental remediation.
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Affiliation(s)
- Wen Cui
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University , Chongqing 400067, China
| | - Jieyuan Li
- College of Architecture and Environment, Institute of New Energy and Low Carbon Technology, Sichuan University , Sichuan 610065, China
| | - Fan Dong
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University , Chongqing 400067, China
| | - Yanjuan Sun
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University , Chongqing 400067, China
| | - Guangming Jiang
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University , Chongqing 400067, China
| | - Wanglai Cen
- College of Architecture and Environment, Institute of New Energy and Low Carbon Technology, Sichuan University , Sichuan 610065, China
| | - S C Lee
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University , Hong Kong, China
| | - Zhongbiao Wu
- Department of Environmental Engineering, Zhejiang University , Hangzhou 310027, China
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50
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Steering the interlayer energy barrier and charge flow via bioriented transportation channels in g-C3N4: Enhanced photocatalysis and reaction mechanism. J Catal 2017. [DOI: 10.1016/j.jcat.2017.05.017] [Citation(s) in RCA: 154] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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