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Xiao L, Gao S, Liao R, Zhou Y, Kong Q, Hu G. C 3N 5-based nanomaterials and their applications in heterogeneous catalysts, energy harvesting, and environmental remediation. MATERIALS HORIZONS 2024; 11:2545-2571. [PMID: 38445393 DOI: 10.1039/d3mh02092d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/07/2024]
Abstract
Over the past few decades, the global reliance on fossil fuels and the exponential growth of human population have escalated global energy consumption and environmental issues. To tackle these dual challenges, metal catalysts, in particular precious metal ones, have emerged as pivotal players in the fields of environment and energy. Among the numerous metal-free and organic catalyst materials, C3N5-based materials have a major advantage over their carbon nitride (CxNy) counterparts owing to the abundant availability of raw materials, non-toxicity, non-hazardous nature, and exceptional performance. Although significant efforts have been dedicated to synthesising and optimising the applicable properties of C3N5-based materials in recent years, a comprehensive summary of the immediate parameters of this promising material is still lacking. Given the rapid development of C3N5-based materials, a timely review is essential for staying updated on their strengths and weaknesses across various applications, as well as providing guidance for designing efficient catalysts. In this study, we present an extensive overview of recent advancements in C3N5-based materials, encompassing their physicochemical properties, major synthetic methods, and applications in photocatalysis, electrocatalysis, and adsorption, among others. This systematic review effectively summarises both the advantages and shortcomings associated with C3N5-based materials for energy and environmental applications, thus offering researchers focussed on CxNy-materials an in-depth understanding of those based on C3N5. Finally, considering the limitations and deficiencies of C3N5-based materials, we have proposed enhancement schemes and strategies, while presenting personal perspectives on the challenges and future directions for C3N5. Our ultimate aim is to provide valuable insights for the research community in this field.
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Affiliation(s)
- Linfeng Xiao
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming 650504, China.
- School of Materials Science and Engineering, Jingdezhen Ceramic University, Jingdezhen 333403, China.
- Southwest United Graduate School, Kunming 650092, China
| | - Sanshuang Gao
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming 650504, China.
| | - Runhua Liao
- School of Materials Science and Engineering, Jingdezhen Ceramic University, Jingdezhen 333403, China.
| | - Yingtang Zhou
- Zhejiang Key Laboratory of Petrochemical Environmental Pollution Control, National Engineering Research Center for Marine Aquaculture, Marine Science and Technology College, Zhejiang Ocean University, Zhoushan 316022, China.
| | - Qingquan Kong
- School of Mechanical Engineering, Chengdu University, Chengdu 610106, China
| | - Guangzhi Hu
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming 650504, China.
- Southwest United Graduate School, Kunming 650092, China
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Fischer K, Abdul Latif A, Griebel J, Prager A, Shayestehpour O, Zahn S, Schulze A. Immobilization of Bi 2WO 6 on Polymer Membranes for Photocatalytic Removal of Micropollutants from Water - A Stable and Visible Light Active Alternative. GLOBAL CHALLENGES (HOBOKEN, NJ) 2024; 8:2300198. [PMID: 38486926 PMCID: PMC10935888 DOI: 10.1002/gch2.202300198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 01/26/2024] [Indexed: 03/17/2024]
Abstract
In this work, bismuth tungstate Bi2WO6 is immobilized on polymer membranes to photocatalytically remove micropollutants from water as an alternative to titanium dioxide TiO2. A synthesis method for Bi2WO6 preparation and its immobilization on a polymer membrane is developed. Bi2WO6 is characterized using X-ray diffraction and UV-vis reflectance spectroscopy, while the membrane undergoes analysis through scanning electron microscopy, X-ray photoelectron spectroscopy, and degradation experiments. The density of states calculations for TiO2 and Bi2WO6, along with PVDF reactions with potential reactive species, are investigated by density functional theory. The generation of hydroxyl radicals OH• is investigated via the reaction of coumarin to umbelliferone via fluorescence probe detection and electron paramagnetic resonance. Increasing reactant concentration enhances Bi2WO6 crystallinity. Under UV light at pH 7 and 11, the Bi2WO6 membrane completely degrades propranolol in 3 and 1 h, respectively, remaining stable and reusable for over 10 cycles (30 h). Active under visible light with a bandgap of 2.91 eV, the Bi2WO6 membrane demonstrates superior stability compared to a TiO2 membrane during a 7-day exposure to UV light as Bi2WO6 does not generate OH• radicals. The Bi2WO6 membrane is an alternative for water pollutant degradation due to its visible light activity and long-term stability.
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Affiliation(s)
- Kristina Fischer
- Leibniz Institute of Surface Engineering (IOM)Permoserstr. 1504318LeipzigGermany
| | - Amira Abdul Latif
- Leibniz Institute of Surface Engineering (IOM)Permoserstr. 1504318LeipzigGermany
| | - Jan Griebel
- Leibniz Institute of Surface Engineering (IOM)Permoserstr. 1504318LeipzigGermany
| | - Andrea Prager
- Leibniz Institute of Surface Engineering (IOM)Permoserstr. 1504318LeipzigGermany
| | - Omid Shayestehpour
- Leibniz Institute of Surface Engineering (IOM)Permoserstr. 1504318LeipzigGermany
| | - Stefan Zahn
- Leibniz Institute of Surface Engineering (IOM)Permoserstr. 1504318LeipzigGermany
| | - Agnes Schulze
- Leibniz Institute of Surface Engineering (IOM)Permoserstr. 1504318LeipzigGermany
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Zhang Y, Yu H, Zhai R, Zhang J, Gao C, Qi K, Yang L, Ma Q. Recent Progress in Photocatalytic Degradation of Water Pollution by Bismuth Tungstate. Molecules 2023; 28:8011. [PMID: 38138501 PMCID: PMC10745909 DOI: 10.3390/molecules28248011] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 12/06/2023] [Accepted: 12/07/2023] [Indexed: 12/24/2023] Open
Abstract
Photocatalysis has emerged as a highly promising, green, and efficient technology for degrading pollutants in wastewater. Among the various photocatalysts, Bismuth tungstate (Bi2WO6) has gained significant attention in the research community due to its potential in environmental remediation and photocatalytic energy conversion. However, the limited light absorption ability and rapid recombination of photogenerated carriers hinder the further improvement of Bi2WO6's photocatalytic performance. This review aims to present recent advancements in the development of Bi2WO6-based photocatalysts. It delves into the photocatalytic mechanism of Bi2WO6 and summarizes the achieved photocatalytic characteristics by controlling its morphology, employing metal and non-metal doping, constructing semiconductor heterojunctions, and implementing defective engineering. Additionally, this review explores the practical applications of these modified Bi2WO6 photocatalysts in wastewater purification. Furthermore, this review addresses existing challenges and suggests prospects for the development of efficient Bi2WO6 photocatalysts. It is hoped that this comprehensive review will serve as a valuable reference and guide for researchers seeking to advance the field of Bi2WO6 photocatalysis.
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Affiliation(s)
- Yingjie Zhang
- College of Agriculture and Biological Science, Dali University, Dali 671000, China; (Y.Z.); (H.Y.); (R.Z.); (J.Z.); (C.G.)
- Key Laboratory of Ecological Microbial Remediation Technology of Yunnan Higher Education Institutes, Dali University, Dali 671000, China
| | - Huijuan Yu
- College of Agriculture and Biological Science, Dali University, Dali 671000, China; (Y.Z.); (H.Y.); (R.Z.); (J.Z.); (C.G.)
| | - Ruiqi Zhai
- College of Agriculture and Biological Science, Dali University, Dali 671000, China; (Y.Z.); (H.Y.); (R.Z.); (J.Z.); (C.G.)
| | - Jing Zhang
- College of Agriculture and Biological Science, Dali University, Dali 671000, China; (Y.Z.); (H.Y.); (R.Z.); (J.Z.); (C.G.)
| | - Cuiping Gao
- College of Agriculture and Biological Science, Dali University, Dali 671000, China; (Y.Z.); (H.Y.); (R.Z.); (J.Z.); (C.G.)
| | - Kezhen Qi
- College of Pharmacy, Dali University, Dali 671000, China
| | - Li Yang
- College of International Education, Dali University, Dali 671000, China;
| | - Qiang Ma
- School of Architecture and Civil Engineering, Chengdu University, Chengdu 610106, China
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Wu G, Liu Q, Ma L, Tian L, Ran J, Pan Y, Han J, Xing W. The promoted organic pollutant and visible-light-driven photocatalytic degradation efficiency of MIL-101(Fe)/Bi2WO6 Z-scheme heterojunction assisting and mechanism. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2022.130413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Synthesis of Mo–doped symbiotic mixture of Bi2WO6 and Bi6O6(OH)3(NO3)3·1.5H2O nanosheets with enhanced photocatalytic degradation for mustard gas simulator 2-CEES. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04926-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Han Z, Zhang X, Zuo Y, Dong H, Ren H. Decorating 2D Ti3C2 on flower-like hierarchical Bi2WO6 for the 2D/2D heterojunction construction towards photodegradation of tetracycline antibiotics. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121715] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Wu G, Liu Q, Wang J, Xia S, Huang X, Han J, Xing W. Construction of hierarchical Bi2WO6/ZnIn2S4 heterojunction for boosting photocatalytic performance in degradation of organic compounds and reduction of hexavalent chromium. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Shukla BK, Gautam MK, Rawat S, Bhan C, Bhandari H, Singh J, Garg S. Statistical optimization of process conditions for photocatalytic degradation of phenol with bismuth molybdate photocatalyst. REACTION KINETICS MECHANISMS AND CATALYSIS 2022. [DOI: 10.1007/s11144-022-02236-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Synthesis and Characterization of Bi2WxMo1−xO6 Solid Solutions and Their Application in Photocatalytic Desulfurization under Visible Light. Processes (Basel) 2022. [DOI: 10.3390/pr10040789] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Photocatalytic oxidative desulfurization has attracted much attention in recent years due to the continuous tightening of the sulfur content requirements in motor fuels and the disadvantages of the industrial hydrodesulfurization process. This work is devoted to the investigation of the photocatalytic activity of Bi2WxMo1−xO6 solid solutions (x = 1, 0.75, 0.5, 0.25, 0) in the oxidative desulfurization of hydrocarbons under visible light irradiation using hydrogen peroxide as an oxidant. The synthesized photocatalysts were characterized in detail using XRD, SEM, EDS, low-temperature nitrogen adsorption–desorption, and DRS. It was shown that the use of solid solutions Bi2WxMo1−xO6 with x = 0.5–0.75 leads to the complete oxidation of organosulfur compounds to CO2 and H2O within 120 min. The high photocatalytic activity of solid solutions (x = 0.5–0.75) is attributed to their ability to absorb more visible light, the presence of the corner-shared [Mo/WO6] octahedral layers, which may promote the generation and separation of photogenerated charges, and the hierarchical 3D flower-like structure. The reaction mechanism of the desulfurization was also analyzed in this work.
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Yang Z, Luo Y, Yu H, Liang K, Wang M, Wang Q, Yin B, Chen H. Reshaping the Tumor Immune Microenvironment Based on a Light-Activated Nanoplatform for Efficient Cancer Therapy. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2108908. [PMID: 34965614 DOI: 10.1002/adma.202108908] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 12/03/2021] [Indexed: 06/14/2023]
Abstract
The immunosuppressive tumor microenvironment (TME) always causes poor antitumor immune efficacy, prone to relapse and metastasis. Herein, novel poly(vinylpyrrolidone) (PVP) modified BiFeO3 /Bi2 WO6 (BFO/BWO) with a p-n type heterojunction is constructed for reshaping the immunosuppressive TME. Reactive oxygen species can be generated under light activation by the well-separated hole (h+ )-electron (e- ) pairs owing to the heterojunction in BFO/BWO-PVP NPs. Interestingly, h+ can trigger the decomposition of H2 O2 to generate O2 for alleviating tumor hypoxia, which not only sensitizes photodynamic therapy (PDT) and radiotherapy (RT), but also promotes tumor-associated macrophages (TAMs) polarization from M2 to M1 phenotype, which is beneficial to decrease the expression of HIF-1α. Importantly, such a light-activated nanoplatform, combining with RT can efficiently activate and recruit cytotoxic T lymphocytes to infiltrate in tumor tissues, as well as stimulate TAMs to M1 phenotype, dramatically reverse the immunosuppressive TME into an immunoactive one, and further boost immune memory responses. Moreover, BFO/BWO-PVP NPs also present high performance for computed tomography imaging contrast. Taken together, this work offers a novel paradigm for achieving O2 self-supply of inorganic nanoagents and reshaping of the tumor immune microenvironment for effective inhibition of cancer as well as metastasis and recurrence.
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Affiliation(s)
- Zebin Yang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Dingxi Road 1295, Shanghai, 200050, P. R. China
- School of Chemical Science and Engineering, Tongji University, Siping Road 1239, Shanghai, 200092, P. R. China
| | - Yu Luo
- Shanghai Engineering Technology Research Center for Pharmaceutical Intelligent Equipment, Shanghai Frontiers Science Research Center for Druggability of Cardiovascular noncoding RNA, Institute for Frontier Medical Technology, College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Longteng Road 333, Shanghai, 201620, P. R. China
| | - Huizhu Yu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Dingxi Road 1295, Shanghai, 200050, P. R. China
| | - Kaicheng Liang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Dingxi Road 1295, Shanghai, 200050, P. R. China
| | - Miao Wang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Dingxi Road 1295, Shanghai, 200050, P. R. China
| | - Qigang Wang
- School of Chemical Science and Engineering, Tongji University, Siping Road 1239, Shanghai, 200092, P. R. China
| | - Bo Yin
- Department of Radiology, Huashan Hospital, Fudan University, Urumqi Middle Road 12, Shanghai, 200040, P. R. China
| | - Hangrong Chen
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Dingxi Road 1295, Shanghai, 200050, P. R. China
- School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Sub-lane Xiangshan Road 1, Hangzhou, 310024, P. R. China
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Karaman C, Yola BB, Karaman O, Atar N, Polat İ, Yola ML. Sensitive sandwich-type electrochemical SARS-CoV‑2 nucleocapsid protein immunosensor. Mikrochim Acta 2021; 188:425. [PMID: 34812927 PMCID: PMC8609265 DOI: 10.1007/s00604-021-05092-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 11/07/2021] [Indexed: 12/12/2022]
Abstract
A sensitive and fast sandwich-type electrochemical SARS-CoV‑2 (COVID-19) nucleocapsid protein immunosensor was prepared based on bismuth tungstate/bismuth sulfide composite (Bi2WO6/Bi2S3) as electrode platform and graphitic carbon nitride sheet decorated with gold nanoparticles (Au NPs) and tungsten trioxide sphere composite (g-C3N4/Au/WO3) as signal amplification. The electrostatic interactions between capture antibody and Bi2WO6/Bi2S3 led to immobilization of the capture nucleocapsid antibody. The detection antibody was then conjugated to g-C3N4/Au/WO3 via the affinity of amino-gold. After physicochemically characterization via transmission electron microscopy (TEM), scanning electron microscopy (SEM), x-ray diffraction (XRD), and x-ray photoelectron spectroscopy (XPS), cyclic voltammetry (CV), differential pulse voltammetry (DPV), and electrochemical impedance spectroscopy (EIS) analysis were implemented to evaluate the electrochemical performance of the prepared immunosensor. The detection of SARS-CoV-2 nucleocapsid protein (SARS-CoV-2 NP) in a small saliva sample (100.0 µL) took just 30 min and yielded a detection limit (LOD) of 3.00 fg mL-1, making it an effective tool for point-of-care COVID-19 testing.
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Affiliation(s)
- Ceren Karaman
- Department of Electricity and Energy, Vocational School of Technical Sciences, Akdeniz University, Antalya, Turkey
| | - Bahar Bankoğlu Yola
- Science and Technology Application and Research Laboratory, Iskenderun Technical University, Hatay, Turkey
| | - Onur Karaman
- Department of Medical Imaging Techniques, Vocational School of Health Services, Akdeniz University, Antalya, Turkey
| | - Necip Atar
- Department of Chemical Engineering, Faculty of Engineering, Pamukkale University, Denizli, Turkey
| | - İlknur Polat
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Hasan Kalyoncu University, Gaziantep, Turkey
| | - Mehmet Lütfi Yola
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Hasan Kalyoncu University, Gaziantep, Turkey.
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Wang L, Guo C, Chen F, Ning J, Zhong Y, Hu Y. pH-induced hydrothermal synthesis of Bi 2WO 6 nanoplates with controlled crystal facets for switching bifunctional photocatalytic water oxidation/reduction activity. J Colloid Interface Sci 2021; 602:868-879. [PMID: 34175635 DOI: 10.1016/j.jcis.2021.06.044] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 06/07/2021] [Accepted: 06/07/2021] [Indexed: 01/01/2023]
Abstract
Bifunctional photocatalysts for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) have attracted growing interest to understand the mechanisms governing different evolution reactions, and the bifunctional activity of a single type of crystalline photocatalyst has gained especial attention. We herein report the high photocatalytic OER and HER activities of Bi2WO6 nanoplates (BWO NPs) which are synthesized by a simple hydrothermal method, and the switchable OER and HER performances controlled by the pH value of the precursor solvent. In the pH range from 4 to 9, the thickness of BWO NPs along the [001] direction exhibits interesting dependence on the pH value, which decreases as the pH value increases. Correspondingly, the BWO NPs obtained at the pH value of 7 (BWO-7) show the highest photocatalytic OER activity, while the BWO NPs synthesized at the pH value of 9 (BWO-9) exhibit the highest photoactivity towards HER. The electronic band structure analysis indicates that the highest photocatalytic OER activity is related to the band alignment of the valence band maximum of Bi2WO6, which determines the efficient separation of photogenerated electrons and holes as well as the fast charge transfer kinetics. The crystal facet evolution resulting from thickness reduction promotes the exposure of {001} facets for HER and decreases the exposure of {100} and {010} facets for OER. This work provides new insights into the combined effects of crystal facets and electronic band structures on photocatalysis.
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Affiliation(s)
- Li Wang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, Jinhua 321004, China
| | - Changfa Guo
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, Jinhua 321004, China.
| | - Fang Chen
- Hangzhou Institute of Advanced Studies, Zhejiang Normal University, Hangzhou 311231, China
| | - Jiqiang Ning
- Vacuum Interconnected Nanotech Workstation, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Yijun Zhong
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, Jinhua 321004, China
| | - Yong Hu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, Jinhua 321004, China; Hangzhou Institute of Advanced Studies, Zhejiang Normal University, Hangzhou 311231, China.
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Hu J, Zhan Y, Zhang G, Feng Q, Yang W, Chiao YH, Zhang S, Sun A. Durable and super-hydrophilic/underwater super-oleophobic two-dimensional MXene composite lamellar membrane with photocatalytic self-cleaning property for efficient oil/water separation in harsh environments. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119627] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Liu D, Song X, Yi W, Li Y, Kong Q, Bai H, Zou M, Xi G. General Microwave Route to Single-Crystal Porous Transition Metal Nitrides for Highly Sensitive and Stable Raman Scattering Substrates. NANO LETTERS 2021; 21:7724-7731. [PMID: 34477392 DOI: 10.1021/acs.nanolett.1c02541] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The synthesis of metallic transition metal nitrides (TMNs) has traditionally been performed under harsh conditions, which makes it difficult to prepare TMNs with high surface area and porosity due to the grain sintering. Herein, we report a general and rapid (30 s) microwave synthesis method for preparing TMNs with high specific surface area (122.6-141.7 m2 g-1) and porosity (0.29-0.34 cm3 g-1). Novel single-crystal porous WN, Mo2N, and V2N are first prepared by this method, which exhibits strong surface plasmon resonance, photothermal conversion, and surface-enhanced Raman scattering effects. Different from the conventional low-temperature microwave absorbing media such as water and polymers, as new concept absorbing media, hydrated metal oxides and metallic metal oxides are found to have a remarkable high-temperature microwave heating effect and play key roles in the formation of TMNs. The current research results provide a new-concept microwave method for preparing high lattice energy compounds with high specific surface.
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Affiliation(s)
- Damin Liu
- Institute of Industrial and Consumer Product Safety, Chinese Academy of Inspection and Quarantine, Beijing 100176, P. R. China
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, P. R. China
| | - Xiaoyu Song
- Institute of Industrial and Consumer Product Safety, Chinese Academy of Inspection and Quarantine, Beijing 100176, P. R. China
| | - Wencai Yi
- School of Physics and Physical Engineering, Qufu Normal University, Qufu 273165, P. R. China
| | - Yahui Li
- Institute of Industrial and Consumer Product Safety, Chinese Academy of Inspection and Quarantine, Beijing 100176, P. R. China
| | - Qinghong Kong
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, P. R. China
| | - Hua Bai
- Institute of Industrial and Consumer Product Safety, Chinese Academy of Inspection and Quarantine, Beijing 100176, P. R. China
| | - Mingqiang Zou
- Institute of Industrial and Consumer Product Safety, Chinese Academy of Inspection and Quarantine, Beijing 100176, P. R. China
| | - Guangcheng Xi
- Institute of Industrial and Consumer Product Safety, Chinese Academy of Inspection and Quarantine, Beijing 100176, P. R. China
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Recent advances on Bi2WO6-based photocatalysts for environmental and energy applications. CHINESE JOURNAL OF CATALYSIS 2021. [DOI: 10.1016/s1872-2067(20)63769-x] [Citation(s) in RCA: 95] [Impact Index Per Article: 31.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Humayun M, Ullah H, Tahir AA, Bin Mohd Yusoff AR, Mat Teridi MA, Nazeeruddin MK, Luo W. An Overview of the Recent Progress in Polymeric Carbon Nitride Based Photocatalysis. CHEM REC 2021; 21:1811-1844. [PMID: 33887089 DOI: 10.1002/tcr.202100067] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Revised: 04/09/2021] [Accepted: 04/12/2021] [Indexed: 01/07/2023]
Abstract
Recently, polymeric carbon nitride (g-C3 N4 ) as a proficient photo-catalyst has been effectively employed in photocatalysis for energy conversion, storage, and pollutants degradation due to its low cost, robustness, and environmentally friendly nature. The critical review summarized the recent development, fundamentals, nanostructures design, advantages, and challenges of g-C3 N4 (CN), as potential future photoactive material. The review also discusses the latest information on the improvement of CN-based heterojunctions including Type-II, Z-scheme, metal/CN Schottky junctions, noble metal@CN, graphene@CN, carbon nanotubes (CNTs)@CN, metal-organic frameworks (MOFs)/CN, layered double hydroxides (LDH)/CN heterojunctions and CN-based heterostructures for H2 production from H2 O, CO2 conversion and pollutants degradation in detail. The optical absorption, electronic behavior, charge separation and transfer, and bandgap alignment of CN-based heterojunctions are discussed elaborately. The correlations between CN-based heterostructures and photocatalytic activities are described excessively. Besides, the prospects of CN-based heterostructures for energy production, storage, and pollutants degradation are discussed.
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Affiliation(s)
- Muhammad Humayun
- Engineering Research Center for Functional Ceramics of the Ministry of Education, School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, 430074, PR, China.,Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, PR, China
| | - Habib Ullah
- Environment and Sustainability Institute, University of Exeter, Penryn, TR10 9FE, Cornwall, United Kingdom
| | - Asif Ali Tahir
- Environment and Sustainability Institute, University of Exeter, Penryn, TR10 9FE, Cornwall, United Kingdom
| | - Abd Rashid Bin Mohd Yusoff
- Department of Physics, Swansea University, Vivian Tower, Singleton Park, SA2 8PP, Swansea, United Kingdom
| | - Mohd Asri Mat Teridi
- Solar Energy Research Institute (SERI), Universiti Kebangsaan Malaysia, 43600, UKM Bangi, Selangor, Malaysia
| | - Mohammad Khaja Nazeeruddin
- Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Rue de l'Industrie 17, CH-1951, Sion, Switzerland
| | - Wei Luo
- Engineering Research Center for Functional Ceramics of the Ministry of Education, School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, 430074, PR, China.,Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, PR, China
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Arif M, Zhang M, Mao Y, Bu Q, Ali A, Qin Z, Muhmood T, Shahnoor, Liu X, Zhou B, Chen SM. Oxygen vacancy mediated single unit cell Bi2WO6 by Ti doping for ameliorated photocatalytic performance. J Colloid Interface Sci 2021; 581:276-291. [DOI: 10.1016/j.jcis.2020.07.113] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 07/20/2020] [Accepted: 07/23/2020] [Indexed: 11/30/2022]
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18
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Chankhanittha T, Nanan S. Visible-light-driven photocatalytic degradation of ofloxacin (OFL) antibiotic and Rhodamine B (RhB) dye by solvothermally grown ZnO/Bi2MoO6 heterojunction. J Colloid Interface Sci 2021; 582:412-427. [DOI: 10.1016/j.jcis.2020.08.061] [Citation(s) in RCA: 75] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 08/11/2020] [Accepted: 08/16/2020] [Indexed: 12/21/2022]
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19
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Zhang J, Deng P, Deng M, Shen H, Feng Z, Li H. Hybrid Density Functional Theory Study of Native Defects and Nonmetal (C, N, S, and P) Doping in a Bi 2WO 6 Photocatalyst. ACS OMEGA 2020; 5:29081-29091. [PMID: 33225139 PMCID: PMC7675596 DOI: 10.1021/acsomega.0c03685] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 10/26/2020] [Indexed: 06/11/2023]
Abstract
Native defects and nonmetal doping have been shown to be an effective way to optimize the photocatalytic properties of Bi2WO6. However, a detailed understanding of defect physics in Bi2WO6 has been lacking. Here, using the Heyd-Scuseria-Ernzerhof hybrid functional defect calculations, we study the formation energies, electronic structures, and optical properties of native defects and nonmetal element (C, N, S, and P) doping into Bi2WO6. We find that the Bi vacancy (Bivac), O vacancy (Ovac), S doping on the O site (SO), and N doping on the O site (NO) defects in the Bi2WO6 can be stable depending on the Fermi level and chemical potentials. By contrast, the substitution of an O atom by a C or P atom (CO, PO) has high formation energy and is unlikely to form. The calculated electronic structures of the Bivac, Ovac, SO, and NO defects indicate that the band-gap reduction of Ovac 2+, Bivac 3-, and SO defects is mainly due to forming shallow impurity levels within the band gap. The calculated absorption coefficients of Ovac 2+, Bivac 3-, and SO show strong absorption in the visible light region, which is in good agreement with the experimental results. Hence, Ovac 2+, Bivac 3-, and SO defects can improve the adsorption capacity of Bi2WO6, which helps enhance its photocatalytic performance. Our results provide insights into how to enhance the photocatalytic activity of Bi2WO6 for energy and environmental applications through the rational design of defect-controlled synthesis conditions.
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Affiliation(s)
- Jihua Zhang
- Guizhou Provincial
Key Laboratory of Computational Nano-Material Science, Guizhou Education University, Guiyang 550018, China
| | - Panluo Deng
- Institute for Computational Materials Science, School
of Physics and Electronics, Henan University, Kaifeng 475004, China
| | - Mingsen Deng
- Guizhou Provincial
Key Laboratory of Computational Nano-Material Science, Guizhou Education University, Guiyang 550018, China
| | - Hujun Shen
- Guizhou Provincial
Key Laboratory of Computational Nano-Material Science, Guizhou Education University, Guiyang 550018, China
| | - Zhenzhen Feng
- Institute for Computational Materials Science, School
of Physics and Electronics, Henan University, Kaifeng 475004, China
| | - Hang Li
- Institute for Computational Materials Science, School
of Physics and Electronics, Henan University, Kaifeng 475004, China
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20
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Li Z, Meng X. New insight into reactive oxidation species (ROS) for bismuth-based photocatalysis in phenol removal. JOURNAL OF HAZARDOUS MATERIALS 2020; 399:122939. [PMID: 32937699 DOI: 10.1016/j.jhazmat.2020.122939] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 04/22/2020] [Accepted: 05/08/2020] [Indexed: 06/11/2023]
Abstract
Bismuth-based semiconductors (BBS) are a group of promising candidates applied to visible light-induced photocatalysis. With deep positions of valence bands (2.34-4.04 eV), BBS exhibited excellent activity in oxidation processes. Fundamental studies on the reactive oxidation species primarily focused on TiO2 under ultraviolet, and it was recognized that OH radicals were effective reactive oxidative species in photocatalytic oxidation processes. This verdict may not be applicable for all other photocatalytic systems. In this study, the reactive oxidation species for BBS in the photocatalytic decomposition of phenol were explored. BBS were prepared with Hierarchical structures and high crystallinity. It was found that OH radicals and superoxide radicals were negligibly produced in most BBS photocatalytic systems. Instead, separated holes on the valence band may directly react with adsorbed species including organics, and acted as the primary ROS. One of the possible explanations of this phenomenon may be due to the shorter lifetime of photogenerated charge carriers on most BBS (212.3-415.7 ms) compared to that of TiO2 (1193.8 ms). Photocatalytic reaction pathways of degradation of phenol were also different between BBS and TiO2, which were proposed. This work shed light on the significance of addressing and clarifying the reactive oxidation species in BBS photocatalysis.
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Affiliation(s)
- Zizhen Li
- Key Laboratory of Marine Chemistry Theory and Technology (Ministry of Education), College of Chemistry & Chemical Engineering, Ocean University of China, Qingdao, Shandong, 266100, China
| | - Xiangchao Meng
- Key Laboratory of Marine Chemistry Theory and Technology (Ministry of Education), College of Chemistry & Chemical Engineering, Ocean University of China, Qingdao, Shandong, 266100, China.
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21
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Wang J, Wang J, Li N, Du X, Ma J, He C, Li Z. Direct Z-Scheme 0D/2D Heterojunction of CsPbBr 3 Quantum Dots/Bi 2WO 6 Nanosheets for Efficient Photocatalytic CO 2 Reduction. ACS APPLIED MATERIALS & INTERFACES 2020; 12:31477-31485. [PMID: 32568504 DOI: 10.1021/acsami.0c08152] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Photocatalytic CO2 reduction is an appealing approach to convert solar energy into high value-added chemicals. All-inorganic CsPbBr3 quantum dots (QDs) have emerged as a promising photocatalyst for reducing CO2. However, pristine CsPbBr3 has a low catalytic performance, mainly due to severe charge recombination. Herein, a 0D/2D heterojunction of CsPbBr3 QDs/Bi2WO6 nanosheet (CPB/BWO) photocatalysts is fabricated for photocatalytic CO2 reduction. The CPB/BWO photocatalyst achieves excellent photocatalytic performance: the total yield of CH4/CO is 503 μmol g-1, nearly 9.5 times higher than the pristine CsPbBr3. The CPB/BWO heterojunction also exhibits much-improved stability during photocatalytic reactions. On the basis of various characterization techniques, our investigations verified a direct Z-scheme charge migration mechanism between CsPbBr3 QDs and Bi2WO6 nanosheets. The improved photocatalytic performance is originated from the high spatial separation of photoexcited charge carriers in CPB/BWO, which can also preserve strong individual redox abilities of two components. This work reports an efficient direct Z-scheme heterojunction photocatalytic system based on metal halide perovskites. The novel strategy we proposed may bring up new opportunities for the development of metal halide perovskite photocatalysts with greatly enhanced activities.
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Affiliation(s)
- Jichong Wang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua, Zhejiang 321004, P. R. China
| | - Jin Wang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua, Zhejiang 321004, P. R. China
| | - Nuoya Li
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua, Zhejiang 321004, P. R. China
| | - Xinyi Du
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua, Zhejiang 321004, P. R. China
| | - Jun Ma
- Hefei National Laboratory for Physical Sciences at the Microscale, National Synchrotron Radiation Laboratory, iChEM, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Chaohua He
- Hefei National Laboratory for Physical Sciences at the Microscale, National Synchrotron Radiation Laboratory, iChEM, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Zhengquan Li
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua, Zhejiang 321004, P. R. China
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22
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Discrete heterojunction nanofibers of BiFeO3/Bi2WO6: Novel architecture for effective charge separation and enhanced photocatalytic performance. J Colloid Interface Sci 2020; 572:257-268. [DOI: 10.1016/j.jcis.2020.03.096] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 03/25/2020] [Accepted: 03/26/2020] [Indexed: 01/06/2023]
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23
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Insights into the Photocatalytic Bacterial Inactivation by Flower-Like Bi2WO6 under Solar or Visible Light, Through in Situ Monitoring and Determination of Reactive Oxygen Species (ROS). WATER 2020. [DOI: 10.3390/w12041099] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
This study addresses the visible light-induced bacterial inactivation kinetics over a Bi2WO6 synthesized catalyst. The systematic investigation was undertaken with Bi2WO6 prepared by the complexation of Bi with acetic acid (carboxylate) leading to a flower-like morphology. The characterization of the as-prepared Bi2WO6 was carried out by X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), specific surface area (SSA), and photoluminescence (PL). Under low intensity solar light (<48 mW/cm2), complete bacterial inactivation was achieved within two hours in the presence of the flower-like Bi2WO6, while under visible light, the synthesized catalyst performed better than commercial TiO2. The in situ interfacial charge transfer and local pH changes between Bi2WO6 and bacteria were monitored during the bacterial inactivation. Furthermore, the reactive oxygen species (ROS) were identified during Escherichia coli inactivation mediated by appropriate scavengers. The ROS tests alongside the morphological characteristics allowed the proposition of the mechanism for bacterial inactivation. Finally, recycling of the catalyst confirmed the stable nature of the catalyst presented in this study.
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Hayat A, Shaishta N, Mane SKB, Khan J, Hayat A. Rational Ionothermal Copolymerization of TCNQ with PCN Semiconductor for Enhanced Photocatalytic Full Water Splitting. ACS APPLIED MATERIALS & INTERFACES 2019; 11:46756-46766. [PMID: 31762261 DOI: 10.1021/acsami.9b15537] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Photocatalytic full water splitting remains the perfect way to generate oxygen (O2) and hydrogen (H2) gases driven by sunlight to address the future environmental issues as well as energy demands. Owing to its exceptional properties, polymeric carbon nitride (PCN) has been one of the most widely investigated semiconductor photocatalysts. Nevertheless, blank PCN characteristically displays restrained photocatalytic performance due to high-density defects in its framework that may perhaps perform the part of the recombination midpoint for photoproduced electron-hole pairs. Therefore, to overcome this problem, a simple approach to introduce 7,7,8,8-tetracyanoquinodimethane (TCNQ) with an electron-withdrawing characteristic modifier into the pristine PCN framework by the ionothermal method to enhance its optical, conductive, and photocatalytic properties has been undertaken. Results show that such integration of TCNQ results in the delocalization of the π-conjugated structure; significant changes in its chemical electronic configuration, band gap, and surface area; and enhanced production of electrons under visible light. As a result of this facile integration, our best sample (CNU-TCNQ9.0) produced a hydrogen evolution rate (HER) of 164.6 μmol h-1 for H2 and an oxygen evolution rate (OER) of 14.8 μmol h-1 for O2, which were found to be 2.4- and 2.6-fold greater than those produced with pure carbon nitride (CNU) sample, respectively. Hence, this work provides a reasonable alternative method to synthesize and design novel CNU-TCNQ backbone photocatalyst for organic photosynthesis, CO2 reduction, hydrogen evolution, etc.
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Affiliation(s)
- Asif Hayat
- College of Chemistry , Fuzhou University , Fuzhou 350 002 , P. R. China
| | - Naghma Shaishta
- Department of Post-Graduate Studies and Research in Chemistry , Gulbarga University , Gulbarga 585106 , India
| | - Sunil Kumar Baburao Mane
- Department of Post-Graduate Studies and Research in Chemistry , Gulbarga University , Gulbarga 585106 , India
- School of Chemistry , Sun Yat-sen University , Guangzhou 510 275 , P. R. China
| | - Javid Khan
- School of Chemistry , Sun Yat-sen University , Guangzhou 510 275 , P. R. China
| | - Ashiq Hayat
- Department of Physics , Quaid Azam University , Islamabad 45320 , Pakistan
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25
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Zhu J, Zhou Y, Wu W, Deng Y, Xiang Y. A Novel Rose‐Like CuS/Bi
2
WO
6
Composite for Rhodamine B Degradation. ChemistrySelect 2019. [DOI: 10.1002/slct.201903344] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jie Zhu
- Department of Chemistry and Food EngineeringChangsha University of Science and Technology Changsha 410114 China
| | - Yi Zhou
- Department of Chemistry and Food EngineeringChangsha University of Science and Technology Changsha 410114 China
| | - Wan Wu
- Department of Chemistry and Food EngineeringChangsha University of Science and Technology Changsha 410114 China
| | - Yuehong Deng
- Department of Chemistry and Food EngineeringChangsha University of Science and Technology Changsha 410114 China
| | - Ye Xiang
- Department of Chemistry and Food EngineeringChangsha University of Science and Technology Changsha 410114 China
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26
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Shi HL, Zou B, Li ZA, Luo MT, Wang WZ. Direct observation of oxygen-vacancy formation and structural changes in Bi 2WO 6 nanoflakes induced by electron irradiation. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2019; 10:1434-1442. [PMID: 31431855 PMCID: PMC6664412 DOI: 10.3762/bjnano.10.141] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Accepted: 07/01/2019] [Indexed: 05/31/2023]
Abstract
The prominent role of oxygen vacancies in the photocatalytic performance of bismuth tungsten oxides is well recognized, while the underlying formation mechanisms remain poorly understood. Here, we use the transmission electron microscopy to investigate the formation of oxygen vacancies and the structural evolution of Bi2WO6 under in situ electron irradiation. Our experimental results reveal that under 200 keV electron irradiation, the breaking of relatively weak Bi-O bonds leads to the formation of oxygen vacancies in Bi2WO6. With prolonged electron irradiation, the reduced Bi cations tend to form Bi clusters on the nanoflake surfaces, and the oxygen atoms are released from the nanoflakes, while the W-O networks reconstruct to form WO3. A possible mechanism that accounts for the observed processes of Bi cluster formation and oxygen release under energetic electron irradiation is also discussed.
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Affiliation(s)
- Hong-long Shi
- School of Science, Minzu University of China, Beijing 100081, People’s Republic of China, Tel. +861068930809
| | - Bin Zou
- School of Science, Minzu University of China, Beijing 100081, People’s Republic of China, Tel. +861068930809
| | - Zi-an Li
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China, Tel. +861082648001
| | - Min-ting Luo
- The National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China, Tel. +861082544809
| | - Wen-zhong Wang
- School of Science, Minzu University of China, Beijing 100081, People’s Republic of China, Tel. +861068930809
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27
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Precursor-reforming strategy induced g-C3N4 microtubes with spatial anisotropic charge separation established by conquering hydrogen bond for enhanced photocatalytic H2-production performance. J Colloid Interface Sci 2019; 547:224-233. [DOI: 10.1016/j.jcis.2019.03.106] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 03/29/2019] [Accepted: 03/30/2019] [Indexed: 11/20/2022]
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28
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Ma C, Gao X, Wang T, Chen R, Zhu Z, Huo P, Liu Y, Yan Y. Construction of a novel ternary composite of Co-doped CdSe loaded on biomass carbon spheres as visible light photocatalysts for efficient photocatalytic applications. Dalton Trans 2019; 48:6824-6833. [PMID: 31017140 DOI: 10.1039/c8dt04143a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The cobalt doped cadmium selenide/biomass carbon spheres (Co-CdSe/BCS) photocatalyst is easily prepared using a transitory hydrothermal reaction lasting 40 min. The Co-CdSe/BCS photocatalyst is constructed using the in situ growth of Co-CdSe nanodots on the surfaces of the BCS. Doped Co2+ generates an electron trap, which can capture the photoinduced electrons, resulting in the efficient separation of the photoinduced electron-hole pairs. Furthermore, the introduction of carbon spheres enhances the optical absorption property and the ability for electron transport. Results of electrochemical characterization and photoluminescence spectra demonstrate that the Co-CdSe/BCS is able to efficiently separate electron-hole pairs and inhibit their recombination. The as-synthesized samples display high efficiency for the photodegradation of methylene blue dye under visible light. This study offers a new strategy to promote photocatalytic performance of the CdSe photocatalyst.
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Affiliation(s)
- Changchang Ma
- Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang 212013, China
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29
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Kong J, Yang T, Rui Z, Ji H. Perovskite-based photocatalysts for organic contaminants removal: Current status and future perspectives. Catal Today 2019. [DOI: 10.1016/j.cattod.2018.06.045] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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30
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Heterojunction photocatalyst fabricated by deposition Co3O4 nanoparticles on MoS2 nanosheets with enhancing photocatalytic performance and mechanism insight. J Taiwan Inst Chem Eng 2019. [DOI: 10.1016/j.jtice.2019.01.011] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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31
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Li C, Yu S, Zhang X, Wang Y, Liu C, Chen G, Dong H. Insight into photocatalytic activity, universality and mechanism of copper/chlorine surface dual-doped graphitic carbon nitride for degrading various organic pollutants in water. J Colloid Interface Sci 2019; 538:462-473. [DOI: 10.1016/j.jcis.2018.12.009] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 11/26/2018] [Accepted: 12/01/2018] [Indexed: 12/27/2022]
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32
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Li B, Lai C, Zeng G, Huang D, Qin L, Zhang M, Cheng M, Liu X, Yi H, Zhou C, Huang F, Liu S, Fu Y. Black Phosphorus, a Rising Star 2D Nanomaterial in the Post-Graphene Era: Synthesis, Properties, Modifications, and Photocatalysis Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1804565. [PMID: 30680952 DOI: 10.1002/smll.201804565] [Citation(s) in RCA: 115] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 12/18/2018] [Indexed: 06/09/2023]
Abstract
Semiconductor photocatalysis, a sustainable and renewable technology, is deemed to be a new path to resolve environmental pollution and energy shortage. The development of effective photocatalysts, especially the metal-free photocatalysts, is a critical determinant of this technique. The recently emerged 2D material of black phosphorus with distinctive properties of tunable direct bandgap, ultrahigh charge mobility, fortified optical absorption, large specific surface area, and anisotropic structure has captured enormous attention since the first exfoliation of bulk black phosphorus into mono- or few layered phosphorene in 2014. In this article, the state-of-the-art preparation methods are first summarized for bulk black phosphorus, phosphorene, and black phosphorus quantum dot and then the fundamental structure and electronic and optical properties are analyzed to evaluate its feasibility as a metal-free photocatalyst. Various modifications on black phosphorus are also summarized to enhance its photocatalytic performance. Furthermore, the multifarious applications such as solar to energy conversion, organic removal, disinfection, nitrogen fixation, and photodynamic therapy are discussed and some of the future challenges and opportunities for black phosphorus research are proposed. This review reveals that the rising star of black phosphorus will be a multifunctional material in the postgraphene era.
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Affiliation(s)
- Bisheng Li
- College of Environmental Science and Engineering, Hunan University, Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, LuShan South Road, Changsha, 410082, Hunan, P. R. China
| | - Cui Lai
- College of Environmental Science and Engineering, Hunan University, Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, LuShan South Road, Changsha, 410082, Hunan, P. R. China
| | - Guangming Zeng
- College of Environmental Science and Engineering, Hunan University, Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, LuShan South Road, Changsha, 410082, Hunan, P. R. China
| | - Danlian Huang
- College of Environmental Science and Engineering, Hunan University, Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, LuShan South Road, Changsha, 410082, Hunan, P. R. China
| | - Lei Qin
- College of Environmental Science and Engineering, Hunan University, Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, LuShan South Road, Changsha, 410082, Hunan, P. R. China
| | - Mingming Zhang
- College of Environmental Science and Engineering, Hunan University, Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, LuShan South Road, Changsha, 410082, Hunan, P. R. China
| | - Min Cheng
- College of Environmental Science and Engineering, Hunan University, Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, LuShan South Road, Changsha, 410082, Hunan, P. R. China
| | - Xigui Liu
- College of Environmental Science and Engineering, Hunan University, Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, LuShan South Road, Changsha, 410082, Hunan, P. R. China
| | - Huan Yi
- College of Environmental Science and Engineering, Hunan University, Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, LuShan South Road, Changsha, 410082, Hunan, P. R. China
| | - Chengyun Zhou
- College of Environmental Science and Engineering, Hunan University, Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, LuShan South Road, Changsha, 410082, Hunan, P. R. China
| | - Fanglong Huang
- College of Environmental Science and Engineering, Hunan University, Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, LuShan South Road, Changsha, 410082, Hunan, P. R. China
| | - Shiyu Liu
- College of Environmental Science and Engineering, Hunan University, Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, LuShan South Road, Changsha, 410082, Hunan, P. R. China
| | - Yukui Fu
- College of Environmental Science and Engineering, Hunan University, Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, LuShan South Road, Changsha, 410082, Hunan, P. R. China
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Sung MC, Lee GH, Kim DW. Single and polycrystalline CeO 2 nanorods as oxygen-electrode materials for lithium-oxygen batteries. NANOSCALE 2018; 10:21292-21297. [PMID: 30422146 DOI: 10.1039/c8nr06600k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Single and polycrystalline CeO2 nanorods (NRs) were prepared for application as oxygen-electrode electrocatalysts for lithium-oxygen batteries. The CeO2 NRs were prepared via a time-controlled hydrothermal process. At a high current rate of 1000 mA g-1, the single crystalline CeO2 NRs exhibited a higher reversibility and a lower voltage gap than polycrystalline CeO2 NRs. We compared the oxygen reduction and evolution kinetics of single and polycrystalline CeO2 NRs using electrochemical impedance spectroscopy.
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Affiliation(s)
- Myeong-Chang Sung
- School of Civil, Environmental and Architectural Engineering, Korea University, Seoul 136-713, Korea.
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34
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Li C, Yu S, Dong H, Wang Y, Wu H, Zhang X, Chen G, Liu C. Mesoporous ferriferrous oxide nanoreactors modified on graphitic carbon nitride towards improvement of physical, photoelectrochemical properties and photocatalytic performance. J Colloid Interface Sci 2018; 531:331-342. [DOI: 10.1016/j.jcis.2018.07.083] [Citation(s) in RCA: 103] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 07/14/2018] [Accepted: 07/20/2018] [Indexed: 01/04/2023]
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35
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36
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Li M, Huang H, Yu S, Tian N, Zhang Y. Facet, Junction and Electric Field Engineering of Bismuth-Based Materials for Photocatalysis. ChemCatChem 2018. [DOI: 10.1002/cctc.201800859] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Min Li
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes National Laboratory of Mineral Materials School of Materials Science and Technology; China University of Geosciences, Beijing; Beijing 100083 P.R. China
| | - Hongwei Huang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes National Laboratory of Mineral Materials School of Materials Science and Technology; China University of Geosciences, Beijing; Beijing 100083 P.R. China
| | - Shixin Yu
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes National Laboratory of Mineral Materials School of Materials Science and Technology; China University of Geosciences, Beijing; Beijing 100083 P.R. China
| | - Na Tian
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes National Laboratory of Mineral Materials School of Materials Science and Technology; China University of Geosciences, Beijing; Beijing 100083 P.R. China
| | - Yihe Zhang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes National Laboratory of Mineral Materials School of Materials Science and Technology; China University of Geosciences, Beijing; Beijing 100083 P.R. China
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A novel hollow-hierarchical structured Bi2WO6 with enhanced photocatalytic activity for CO2 photoreduction. J Colloid Interface Sci 2018; 523:151-158. [DOI: 10.1016/j.jcis.2018.03.064] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Revised: 03/05/2018] [Accepted: 03/19/2018] [Indexed: 11/20/2022]
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38
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Li B, Lai C, Zeng G, Qin L, Yi H, Huang D, Zhou C, Liu X, Cheng M, Xu P, Zhang C, Huang F, Liu S. Facile Hydrothermal Synthesis of Z-Scheme Bi 2Fe 4O 9/Bi 2WO 6 Heterojunction Photocatalyst with Enhanced Visible Light Photocatalytic Activity. ACS APPLIED MATERIALS & INTERFACES 2018; 10:18824-18836. [PMID: 29746099 DOI: 10.1021/acsami.8b06128] [Citation(s) in RCA: 170] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
An efficient binary Bi2Fe4O9/Bi2WO6 Z-scheme heterojunction was fabricated through a facile hydrothermal route. The obtained Bi2Fe4O9/Bi2WO6 displays high catalytic activity for rhodamine B (RhB) photodegradation, and 100% of RhB was photodegraded by Bi2Fe4O9 (7%)/Bi2WO6 within 90 min, which is much better than that by pure Bi2Fe4O9 and Bi2WO6. The effective photoinduced carrier separation, the broadened photoabsorption range, high oxidation capacity of hole, and the high reduction power of electron are in charge of the elevated catalytic activity because of the formed Z-scheme system. In addition, the effects such as pollutant concentration, pH, inorganic anions, and water sources exerted on photocatalytic performance were also investigated, and the results suggest that Bi2Fe4O9/Bi2WO6 still possesses a high photocatalytic performance. The free-radical trapping experiments and electron spin resonance spin-trapping technology disclose that hole (h+), hydroxy radical (•OH), and superoxide radical (•O2-) are cardinal active radicals in the catalytic system. In terms of the above experimental analysis, a possible photodegradation mechanism of the as-fabricated photocatalyst is thoroughly elucidated. In addition, the possible RhB photodegradation pathway is also raised in the light of the analysis of liquid chromatography-mass/mass spectrometry. In addition, Bi2Fe4O9/Bi2WO6 composite does not display dramatic reduction of the catalytic performance after five recycles. Thus, this study reveals that the as-obtained Bi2Fe4O9/Bi2WO6 catalyst has a great prospect for the environmental purification.
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Affiliation(s)
- Bisheng Li
- College of Environmental Science and Engineering , Hunan University , Changsha 410082 , Hunan , PR China
- Key Laboratory of Environmental Biology and Pollution Control , Hunan University, Ministry of Education , Changsha 410082 Hunan , PR China
| | - Cui Lai
- College of Environmental Science and Engineering , Hunan University , Changsha 410082 , Hunan , PR China
- Key Laboratory of Environmental Biology and Pollution Control , Hunan University, Ministry of Education , Changsha 410082 Hunan , PR China
| | - Guangming Zeng
- College of Environmental Science and Engineering , Hunan University , Changsha 410082 , Hunan , PR China
- Key Laboratory of Environmental Biology and Pollution Control , Hunan University, Ministry of Education , Changsha 410082 Hunan , PR China
| | - Lei Qin
- College of Environmental Science and Engineering , Hunan University , Changsha 410082 , Hunan , PR China
- Key Laboratory of Environmental Biology and Pollution Control , Hunan University, Ministry of Education , Changsha 410082 Hunan , PR China
| | - Huan Yi
- College of Environmental Science and Engineering , Hunan University , Changsha 410082 , Hunan , PR China
- Key Laboratory of Environmental Biology and Pollution Control , Hunan University, Ministry of Education , Changsha 410082 Hunan , PR China
| | - Danlian Huang
- College of Environmental Science and Engineering , Hunan University , Changsha 410082 , Hunan , PR China
- Key Laboratory of Environmental Biology and Pollution Control , Hunan University, Ministry of Education , Changsha 410082 Hunan , PR China
| | - Chengyun Zhou
- College of Environmental Science and Engineering , Hunan University , Changsha 410082 , Hunan , PR China
- Key Laboratory of Environmental Biology and Pollution Control , Hunan University, Ministry of Education , Changsha 410082 Hunan , PR China
| | - Xigui Liu
- College of Environmental Science and Engineering , Hunan University , Changsha 410082 , Hunan , PR China
- Key Laboratory of Environmental Biology and Pollution Control , Hunan University, Ministry of Education , Changsha 410082 Hunan , PR China
| | - Min Cheng
- College of Environmental Science and Engineering , Hunan University , Changsha 410082 , Hunan , PR China
- Key Laboratory of Environmental Biology and Pollution Control , Hunan University, Ministry of Education , Changsha 410082 Hunan , PR China
| | - Piao Xu
- College of Environmental Science and Engineering , Hunan University , Changsha 410082 , Hunan , PR China
- Key Laboratory of Environmental Biology and Pollution Control , Hunan University, Ministry of Education , Changsha 410082 Hunan , PR China
| | - Chen Zhang
- College of Environmental Science and Engineering , Hunan University , Changsha 410082 , Hunan , PR China
- Key Laboratory of Environmental Biology and Pollution Control , Hunan University, Ministry of Education , Changsha 410082 Hunan , PR China
| | - Fanglong Huang
- College of Environmental Science and Engineering , Hunan University , Changsha 410082 , Hunan , PR China
- Key Laboratory of Environmental Biology and Pollution Control , Hunan University, Ministry of Education , Changsha 410082 Hunan , PR China
| | - Shiyu Liu
- College of Environmental Science and Engineering , Hunan University , Changsha 410082 , Hunan , PR China
- Key Laboratory of Environmental Biology and Pollution Control , Hunan University, Ministry of Education , Changsha 410082 Hunan , PR China
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39
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Adsorption of pollutant cations from their aqueous solutions on graphitic carbon nitride explored by density functional theory. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.03.114] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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40
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Fabrication, physicochemical properties and photocatalytic activity of Ag 0.68 V 2 O 5 hierarchical architecture assembled by ultrathin nanosheets. J Taiwan Inst Chem Eng 2018. [DOI: 10.1016/j.jtice.2018.03.055] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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Rauf A, Ma M, Kim S, Sher Shah MSA, Chung CH, Park JH, Yoo PJ. Mediator- and co-catalyst-free direct Z-scheme composites of Bi 2WO 6-Cu 3P for solar-water splitting. NANOSCALE 2018; 10:3026-3036. [PMID: 29376177 DOI: 10.1039/c7nr07952d] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Exploring new single, active photocatalysts for solar-water splitting is highly desirable to expedite current research on solar-chemical energy conversion. In particular, Z-scheme-based composites (ZBCs) have attracted extensive attention due to their unique charge transfer pathway, broader redox range, and stronger redox power compared to conventional heterostructures. In the present report, we have for the first time explored Cu3P, a new, single photocatalyst for solar-water splitting applications. Moreover, a novel ZBC system composed of Bi2WO6-Cu3P was designed employing a simple method of ball-milling complexation. The synthesized materials were examined and further investigated through various microscopic, spectroscopic, and surface area characterization methods, which have confirmed the successful hybridization between Bi2WO6 and Cu3P and the formation of a ZBC system that shows the ideal position of energy levels for solar-water splitting. Notably, the ZBC composed of Bi2WO6-Cu3P is a mediator- and co-catalyst-free photocatalyst system. The improved photocatalytic efficiency obtained with this system compared to other ZBC systems assisted by mediators and co-catalysts establishes the critical importance of interfacial solid-solid contact and the well-balanced position of energy levels for solar-water splitting. The promising solar-water splitting under optimum composition conditions highlighted the relationship between effective charge separation and composition.
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Affiliation(s)
- Ali Rauf
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea.
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42
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Yan P, Li D, Ma X, Xue J, Zhang Y, Liu M. Hydrothermal synthesis of Bi2WO6 with a new tungsten source and enhanced photocatalytic activity of Bi2WO6 hybridized with C3N4. Photochem Photobiol Sci 2018; 17:1084-1090. [DOI: 10.1039/c8pp00078f] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Photogenerated holes of Bi2WO6 transfer to the highest occupied molecular orbital of C3N4, causing a reduction of e−/h+ recombination.
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Affiliation(s)
- Peipei Yan
- School of Metallurgical Engineering
- Xi'an University of Architecture and Technology
- Xi'an
- China
| | - Di Li
- School of Metallurgical Engineering
- Xi'an University of Architecture and Technology
- Xi'an
- China
| | - Xinguo Ma
- School of Science
- Hubei University of Technology
- Wuhan
- China
| | - Juanqin Xue
- School of Metallurgical Engineering
- Xi'an University of Architecture and Technology
- Xi'an
- China
| | - Yujie Zhang
- School of Metallurgical Engineering
- Xi'an University of Architecture and Technology
- Xi'an
- China
| | - Manbo Liu
- School of Metallurgical Engineering
- Xi'an University of Architecture and Technology
- Xi'an
- China
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43
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Obregón S, Ruíz-Gómez M, Hernández-Uresti D. Direct evidence of the photocatalytic generation of reactive oxygen species (ROS) in a Bi2W2O9 layered-structure. J Colloid Interface Sci 2017; 506:111-119. [DOI: 10.1016/j.jcis.2017.07.026] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 07/07/2017] [Accepted: 07/07/2017] [Indexed: 10/19/2022]
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44
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Lou Z, Wang P, Huang B, Dai Y, Qin X, Zhang X, Wang Z, Liu Y. Enhancing Charge Separation in Photocatalysts with Internal Polar Electric Fields. CHEMPHOTOCHEM 2017. [DOI: 10.1002/cptc.201600057] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Zaizhu Lou
- State Key Lab of Crystal Materials; Shandong University; Jinan 250100 China
| | - Peng Wang
- State Key Lab of Crystal Materials; Shandong University; Jinan 250100 China
| | - Baibiao Huang
- State Key Lab of Crystal Materials; Shandong University; Jinan 250100 China
| | - Ying Dai
- School of Physics; Shandong University; Jinan 250100 China
| | - Xiaoyan Qin
- State Key Lab of Crystal Materials; Shandong University; Jinan 250100 China
| | - Xiaoyang Zhang
- State Key Lab of Crystal Materials; Shandong University; Jinan 250100 China
| | - Zeyan Wang
- State Key Lab of Crystal Materials; Shandong University; Jinan 250100 China
| | - Yuanyuan Liu
- State Key Lab of Crystal Materials; Shandong University; Jinan 250100 China
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45
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Photoresponsive colorimetric immunoassay based on chitosan modified AgI/TiO2 heterojunction for highly sensitive chloramphenicol detection. Biosens Bioelectron 2017; 87:579-586. [DOI: 10.1016/j.bios.2016.09.002] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 08/30/2016] [Accepted: 09/01/2016] [Indexed: 01/05/2023]
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46
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Liu Z, Wang H, Pan G, Niu J, Feng P. Facile synthesis, structure and enhanced photocatalytic activity of novel BiOBr/Bi(C2O4)OH composite photocatalysts. J Colloid Interface Sci 2017; 486:8-15. [DOI: 10.1016/j.jcis.2016.09.052] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Revised: 09/11/2016] [Accepted: 09/23/2016] [Indexed: 10/20/2022]
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47
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Xing W, Chen G, Li C, Sun J, Han Z, Zhou Y, Hu Y, Meng Q. Construction of Large-Scale Ultrathin Graphitic Carbon Nitride Nanosheets by a Hydrogen-Bond-Assisted Strategy for Improved Photocatalytic Hydrogen Production and Ciprofloxacin Degradation Activity. ChemCatChem 2016. [DOI: 10.1002/cctc.201600397] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Weinan Xing
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage; School of Chemistry and Chemical Engineering; Harbin Institute of Technology; 92 West Dazhi Street, Nan Gang District Harbin P.R. China
| | - Gang Chen
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage; School of Chemistry and Chemical Engineering; Harbin Institute of Technology; 92 West Dazhi Street, Nan Gang District Harbin P.R. China
| | - Chunmei Li
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage; School of Chemistry and Chemical Engineering; Harbin Institute of Technology; 92 West Dazhi Street, Nan Gang District Harbin P.R. China
| | - Jingxue Sun
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage; School of Chemistry and Chemical Engineering; Harbin Institute of Technology; 92 West Dazhi Street, Nan Gang District Harbin P.R. China
| | - Zhonghui Han
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage; School of Chemistry and Chemical Engineering; Harbin Institute of Technology; 92 West Dazhi Street, Nan Gang District Harbin P.R. China
| | - Yansong Zhou
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage; School of Chemistry and Chemical Engineering; Harbin Institute of Technology; 92 West Dazhi Street, Nan Gang District Harbin P.R. China
| | - Yidong Hu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage; School of Chemistry and Chemical Engineering; Harbin Institute of Technology; 92 West Dazhi Street, Nan Gang District Harbin P.R. China
| | - Qingqiang Meng
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage; School of Chemistry and Chemical Engineering; Harbin Institute of Technology; 92 West Dazhi Street, Nan Gang District Harbin P.R. China
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48
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Jia BR, Qin ML, Li SM, Zhang ZL, Lu HF, Chen PQ, Wu HY, Lu X, Zhang L, Qu XH. Synthesis of Mesoporous Single Crystal Co(OH)2 Nanoplate and Its Topotactic Conversion to Dual-Pore Mesoporous Single Crystal Co3O4. ACS APPLIED MATERIALS & INTERFACES 2016; 8:15582-90. [PMID: 27250515 DOI: 10.1021/acsami.6b02768] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
A new class of mesoporous single crystalline (MSC) material, Co(OH)2 nanoplates, is synthesized by a soft template method, and it is topotactically converted to dual-pore MSC Co3O4. Most mesoporous materials derived from the soft template method are reported to be amorphous or polycrystallined; however, in our synthesis, Co(OH)2 seeds grow to form single crystals, with amphiphilic block copolymer F127 colloids as the pore producer. The single-crystalline nature of material can be kept during the conversion from Co(OH)2 to Co3O4, and special dual-pore MSC Co3O4 nanoplates can be obtained. As the anode of lithium-ion batteries, such dual-pore MSC Co3O4 nanoplates possess exceedingly high capacity as well as long cyclic performance (730 mAh g(-1) at 1 A g(-1) after the 350th cycle). The superior performance is because of the unique hierarchical mesoporous structure, which could significantly improve Li(+) diffusion kinetics, and the exposed highly active (111) crystal planes are in favor of the conversion reaction in the charge/discharge cycles.
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Affiliation(s)
- Bao-Rui Jia
- Institute for Advanced Materials and Technology, University of Science and Technology Beijing , 30 Xueyuan Road, Haidian District, 100083, Beijing, P.R. China
| | - Ming-Li Qin
- Institute for Advanced Materials and Technology, University of Science and Technology Beijing , 30 Xueyuan Road, Haidian District, 100083, Beijing, P.R. China
| | - Shu-Mei Li
- Institute for Advanced Materials and Technology, University of Science and Technology Beijing , 30 Xueyuan Road, Haidian District, 100083, Beijing, P.R. China
| | - Zi-Li Zhang
- Institute for Advanced Materials and Technology, University of Science and Technology Beijing , 30 Xueyuan Road, Haidian District, 100083, Beijing, P.R. China
| | - Hui-Feng Lu
- Institute for Advanced Materials and Technology, University of Science and Technology Beijing , 30 Xueyuan Road, Haidian District, 100083, Beijing, P.R. China
| | - Peng-Qi Chen
- Institute for Advanced Materials and Technology, University of Science and Technology Beijing , 30 Xueyuan Road, Haidian District, 100083, Beijing, P.R. China
| | - Hao-Yang Wu
- Institute for Advanced Materials and Technology, University of Science and Technology Beijing , 30 Xueyuan Road, Haidian District, 100083, Beijing, P.R. China
| | - Xin Lu
- Institute for Advanced Materials and Technology, University of Science and Technology Beijing , 30 Xueyuan Road, Haidian District, 100083, Beijing, P.R. China
| | - Lin Zhang
- Institute for Advanced Materials and Technology, University of Science and Technology Beijing , 30 Xueyuan Road, Haidian District, 100083, Beijing, P.R. China
| | - Xuan-Hui Qu
- Institute for Advanced Materials and Technology, University of Science and Technology Beijing , 30 Xueyuan Road, Haidian District, 100083, Beijing, P.R. China
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49
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Ong WJ, Tan LL, Ng YH, Yong ST, Chai SP. Graphitic Carbon Nitride (g-C3N4)-Based Photocatalysts for Artificial Photosynthesis and Environmental Remediation: Are We a Step Closer To Achieving Sustainability? Chem Rev 2016; 116:7159-329. [DOI: 10.1021/acs.chemrev.6b00075] [Citation(s) in RCA: 4328] [Impact Index Per Article: 541.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Wee-Jun Ong
- Multidisciplinary
Platform of Advanced Engineering, Chemical Engineering Discipline,
School of Engineering, Monash University, Jalan Lagoon Selatan, Bandar Sunway, 47500 Selangor, Malaysia
| | - Lling-Lling Tan
- Multidisciplinary
Platform of Advanced Engineering, Chemical Engineering Discipline,
School of Engineering, Monash University, Jalan Lagoon Selatan, Bandar Sunway, 47500 Selangor, Malaysia
| | - Yun Hau Ng
- Particles
and Catalysis Research Group (PARTCAT), School of Chemical Engineering, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Siek-Ting Yong
- Multidisciplinary
Platform of Advanced Engineering, Chemical Engineering Discipline,
School of Engineering, Monash University, Jalan Lagoon Selatan, Bandar Sunway, 47500 Selangor, Malaysia
| | - Siang-Piao Chai
- Multidisciplinary
Platform of Advanced Engineering, Chemical Engineering Discipline,
School of Engineering, Monash University, Jalan Lagoon Selatan, Bandar Sunway, 47500 Selangor, Malaysia
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50
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Ju P, Wang Y, Sun Y, Zhang D. Controllable one-pot synthesis of a nest-like Bi2WO6/BiVO4 composite with enhanced photocatalytic antifouling performance under visible light irradiation. Dalton Trans 2016; 45:4588-602. [PMID: 26846790 DOI: 10.1039/c6dt00118a] [Citation(s) in RCA: 100] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
In this study, a novel visible-light-sensitive Bi2WO6/BiVO4 composite photocatalyst was controllably synthesized through a facile one-pot hydrothermal method. The Bi2WO6/BiVO4 composite exhibited a perfect nest-like hierarchical microsphere structure, which was constructed by the self-assembly of nanoplates with the assistance of polyvinylpyrrolidone (PVP). The growth mechanism of the Bi2WO6/BiVO4 composite and the effect of its structure on its photocatalytic performance was investigated and proposed. Experimental results showed that the Bi2WO6/BiVO4 composites displayed enhanced photocatalytic antifouling activities under visible light irradiation compared to pure Bi2WO6 and BiVO4. Bi2WO6/BiVO4-1 exhibited the best photocatalytic antifouling performance, and almost all (99.99%) Pseudomonas aeruginosa (P. aeruginosa), Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) bacteria were killed within 30 min. Moreover, the Bi2WO6/BiVO4-1 composite exhibited excellent stability and reusability in the cycled experiments. The photocatalytic antifouling mechanism was proposed based on the active species trapping experiments, revealing that the photo-induced holes (h(+)) and hydroxyl radicals (˙OH) could attack the cell wall and cytoplasmic membrane directly and lead to the death of bacteria. The obviously enhanced photocatalytic activity of the Bi2WO6/BiVO4-1 composite could be mainly attributed to the formation of heterojunctions, accelerating the separation of photo-induced electrons and holes. Furthermore, the large BET surface area combined with the wide photoabsorption region further improved the photocatalytic performance of the Bi2WO6/BiVO4-1 composite. This study provides a new strategy to develop novel composite photocatalysts with enhanced photocatalytic performance for marine antifouling and water purification.
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Affiliation(s)
- Peng Ju
- Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, PR China.
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