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Liu Y, Xu L, Xie C, Ye Q, Han Z, Zhang B, Capron M, Ordomsky V. Construction of Au quantum dots/nitrogen-defect-enriched graphite carbon nitride heterostructure via photo-deposition towards enhanced nitric oxide photooxidation. J Colloid Interface Sci 2024; 670:635-646. [PMID: 38781654 DOI: 10.1016/j.jcis.2024.05.103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 05/07/2024] [Accepted: 05/14/2024] [Indexed: 05/25/2024]
Abstract
The challenge of mitigating pollution stemming from industrial exhaust emissions is a pressing issue in both academia and industry. This study presents the successful synthesis of nitrogen-defect-enriched graphite carbon nitride (g-C3N4) using a two-step calcination technique. Furthermore, a g-C3N4-Au heterostructure was fabricated through the photo-deposited Au quantum dots (QDs). When subjected to visible light irradiation, this heterostructure exhibited robust nitric oxide (NO) photooxidation activity and stability. With its fluffy, porous structure and large surface area, the nitrogen-defect-enriched g-C3N4 provides more active sites for photooxidation processes. The ability of g-C3N4 to absorb visible light is enhanced by the local surface plasmon resonance (LSPR) effect of Au QDs. Additionally, the lifetime of photogenerated charge carriers is extended by the presence of N defects and Au, which effectively prevent photogenerated electron-hole pairs from recombining during the photooxidation process. Moreover, the oxidation pathway of NO was analyzed through In-situ Fourier transform infrared (FT-IR) spectroscopy and Density Functional Theory (DFT) calculation. Computational findings revealed that the introduction of Au QDs decreases the activation energy of the oxidation reaction, thereby facilitating its occurrence while diminishing the formation of intermediate products. As a result, NO is predominantly converted to nitrate (NO3-). This work unveils a novel approach to constructing semiconductor-cocatalyst heterostructures and elucidates their role in NO photooxidation.
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Affiliation(s)
- Yanzhi Liu
- National Local Joint Laboratory of Engineering Application of Microwave Energy and Equipment Technology, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, PR China; The Key Laboratory of Unconventional Metallurgy, Ministry of Education, Kunming 650093, PR China
| | - Lei Xu
- National Local Joint Laboratory of Engineering Application of Microwave Energy and Equipment Technology, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, PR China; The Key Laboratory of Unconventional Metallurgy, Ministry of Education, Kunming 650093, PR China.
| | - Cheng Xie
- National Local Joint Laboratory of Engineering Application of Microwave Energy and Equipment Technology, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, PR China; The Key Laboratory of Unconventional Metallurgy, Ministry of Education, Kunming 650093, PR China
| | - Qianjun Ye
- National Local Joint Laboratory of Engineering Application of Microwave Energy and Equipment Technology, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, PR China; The Key Laboratory of Unconventional Metallurgy, Ministry of Education, Kunming 650093, PR China
| | - Zhaohui Han
- National Local Joint Laboratory of Engineering Application of Microwave Energy and Equipment Technology, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, PR China; The Key Laboratory of Unconventional Metallurgy, Ministry of Education, Kunming 650093, PR China
| | - Bochuan Zhang
- National Local Joint Laboratory of Engineering Application of Microwave Energy and Equipment Technology, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, PR China; The Key Laboratory of Unconventional Metallurgy, Ministry of Education, Kunming 650093, PR China
| | - Mickael Capron
- Unité de Catalyse et Chimie du Solide, UMR CNRS 8181, Université de Lille, F-59000 Lille, France
| | - Vitaly Ordomsky
- Unité de Catalyse et Chimie du Solide, UMR CNRS 8181, Université de Lille, F-59000 Lille, France.
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2
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Wang J, Chu Q, Xu M, Gong Y, Feng Y, Meng M, Gao M. Construction of a BiOCl/Bi 2O 2CO 3 S-Scheme Heterojunction Photocatalyst via Sharing [Bi 2O 2] 2+ Slabs with Enhanced Photocatalytic H 2O 2 Production Performance. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024. [PMID: 39034622 DOI: 10.1021/acs.langmuir.4c00960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/23/2024]
Abstract
The construction of a close contact interface is key to enhancing the photocatalytic activity in heterojunctions. In the work, the BiOCl/Bi2O2CO3 of sharing [Bi2O2]2+ slabs S-scheme heterojunction was prepared by a HCl in situ etching method. The optimal composite photocatalyst could accomplish sizable productivity of H2O2 to 2562.95 μmol g-1 h-1 under simulated solar irradiation, higher than that of primitive Bi2O2CO3 and BiOCl. Moreover, the synthesized catalysts showed good stability. The band structures of BiOCl and Bi2O2CO3 were determined, confirming the formation of BiOCl/Bi2O2CO3 S-scheme heterojunction The BiOCl/Bi2O2CO3, which obviously improved the separation efficiency of photoinduced carriers and effectively enhanced the redox ability of the photocatalyst. In addition, density functional theory (DFT) calculations were utilized to analyze the electron transfer properties and the constitution of the built-in electric field at the interface of BiOCl and Bi2O2CO3. The photocatalytic reaction process was further researched by electron paramagnetic resonance (EPR), indicating the active species in the photocatalytic production of hydrogen peroxide. Eventually, a feasible S-scheme electron transfer mechanism on the BiOCl/Bi2O2CO3 heterojunction during the photocatalytic H2O2 production process was proposed and discussed. This work provides a reliable strategy for the fine design of the S-scheme heterojunction.
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Affiliation(s)
- Jianting Wang
- Key Laboratory of Catalytic Conversion and Clean Energy in Universities of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, People's Republic of China
| | - Qian Chu
- Key Laboratory of Catalytic Conversion and Clean Energy in Universities of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, People's Republic of China
| | - Meiyu Xu
- Key Laboratory of Catalytic Conversion and Clean Energy in Universities of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, People's Republic of China
| | - Yunyun Gong
- Key Laboratory of Catalytic Conversion and Clean Energy in Universities of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, People's Republic of China
| | - Yuanyuan Feng
- Key Laboratory of Catalytic Conversion and Clean Energy in Universities of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, People's Republic of China
| | - Mingyang Meng
- Key Laboratory of Catalytic Conversion and Clean Energy in Universities of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, People's Republic of China
| | - Meichao Gao
- Key Laboratory of Catalytic Conversion and Clean Energy in Universities of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, People's Republic of China
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Liu Z, Li G, Zhang M, Zhang C, Zheng W, You X, Zhang S, Zhong Q. Epitaxial growth of Bi 4Ti 3O 12-BiPO 4 Z-scheme heterojunction to promote carrier transfer for photocatalytic oxidation of NO. J Colloid Interface Sci 2024; 675:721-730. [PMID: 38996702 DOI: 10.1016/j.jcis.2024.07.069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 06/27/2024] [Accepted: 07/08/2024] [Indexed: 07/14/2024]
Abstract
The lack of compactness in heterojunction interfaces and poor charge separation is a great challenge in developing high-efficiency heterojunction photocatalysts. Herein, a novel Bi4Ti3O12-BiPO4 heterojunction was successfully prepared for the first time by epitaxial growth of BiPO4 on the surface of Bi4Ti3O12 nanosheets. The optimized Bi4Ti3O12-BiPO4-0.5 increased the NO oxidation efficiency to 73.05%, surpassing pure Bi4Ti3O12 (63.45%) and BiPO4 (8.35%). Experiments and theoretical calculations indicated that the closely contacted heterointerface between BTO and BPO promoted the generation of the built-in electric field, which led to the formation of the Z- scheme transfer pathway for the photogenerated carriers. Therefore, the separation of photogenerated carriers was facilitated while retaining high redox potential, generating more ·O2- and ·OH to participate in NO oxidation. Furthermore, the adsorption of NO and O2 was enhanced by introducing BiPO4, further improving the photocatalytic NO oxidation performance. This work emphasizes the critical role of heterointerface in accelerating charge transfer, providing a basis for the design and construction of tightly contacted heterojunction photocatalysts.
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Affiliation(s)
- Zhinian Liu
- School of Chemistry and Chemical Engineering, Nanjing University of Science & Technology, Nanjing, Jiangsu 210094, PR China
| | - Guojun Li
- School of Chemistry and Chemical Engineering, Nanjing University of Science & Technology, Nanjing, Jiangsu 210094, PR China
| | - Mingjia Zhang
- School of Chemistry and Chemical Engineering, Nanjing University of Science & Technology, Nanjing, Jiangsu 210094, PR China
| | - Chen Zhang
- Shandong Aluminum Industry Corporation Limited, Zibo, Shandong 255086, PR China
| | - Wangsheng Zheng
- Shandong Aluminum Industry Corporation Limited, Zibo, Shandong 255086, PR China
| | - Xiangting You
- Shandong Aluminum Industry Corporation Limited, Zibo, Shandong 255086, PR China
| | - Shule Zhang
- School of Chemistry and Chemical Engineering, Nanjing University of Science & Technology, Nanjing, Jiangsu 210094, PR China.
| | - Qin Zhong
- School of Chemistry and Chemical Engineering, Nanjing University of Science & Technology, Nanjing, Jiangsu 210094, PR China.
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4
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Pham VV, Nguyen TQ, Le HV, Cao TM. Visible light photocatalytic NO x removal with suppressed poisonous NO 2 byproduct generation over simply synthesized triangular silver nanoparticles coupled with tin dioxide. NANOSCALE ADVANCES 2024; 6:2380-2389. [PMID: 38694464 PMCID: PMC11059515 DOI: 10.1039/d4na00035h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Accepted: 03/20/2024] [Indexed: 05/04/2024]
Abstract
The treatment or conversion of air pollutants with a low generation of secondary toxic substances has become a hot topic in indoor air pollution abatement. Herein, we used triangle-shaped Ag nanoparticles coupled with SnO2 for efficient photocatalytic NO removal. Ag triangular nanoparticles (TNPs) were synthesized by the photoreduction method and SnO2 was coupled by a simple chemical impregnation process. The photocatalytic NO removal activity results show that the modification with Ag TNPs significantly boosted the removal performance up to 3.4 times higher than pristine SnO2. The underlying roles of Ag TNPs in NO removal activity improvement are due to some advantages of Ag TNPs. Moreover, the Ag TNPs contributed photogenerated holes as the main active species toward enhancing the NO oxidation reaction. In particular, the selectivity toward green products significantly improved from 52.78% (SnO2) to 86.99% (Ag TNPs/SnO2). The formation of reactive radicals under light irradiation was also verified by DMPO spin-trapping experiments. This work provides a potential candidate for visible-light photocatalytic NO removal with low toxic byproduct generation.
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Affiliation(s)
| | | | - Hai Viet Le
- VNUHCM, University of Science Ho Chi Minh City Viet Nam
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Nie Q, Jia L, Zhang G, Xie J, Liu J. Micro-Spherical BiOI Photocatalysts for Efficient Degradation of Residual Xanthate and Gaseous Nitric Oxide. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:576. [PMID: 38607111 PMCID: PMC11013789 DOI: 10.3390/nano14070576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 01/31/2024] [Accepted: 02/06/2024] [Indexed: 04/13/2024]
Abstract
BiOI microspheres were synthesized using the solvothermal method for the degradation of residual xanthate and gaseous nitric oxide (NO) under visible light irradiation. The as-prepared BiOI nanomaterials were then characterized using various technologies, including XRD, FE-SEM, TEM, UV-Vis DRS, and XPS. The photodegradation results show that the removal efficiency of isobutyl sodium xanthate can reach 98.08% at an initial xanthate concentration of 120 mg/L; that of NO is as high as 96.36% at an inlet NO concentration of 11 ppm. Moreover, the effects of operational parameters such as catalyst dosage, initial xanthate concentration, and pH value of wastewater on the removal of xanthate were investigated. The results of scavenging tests and full-spectrum scanning indicate that ·O2- radicals are the main active species in xanthate degradation, and peroxide xanthate is an intermediate. The reusability of BiOI was explored through cyclic experiments. Furthermore, the reaction path and the mechanism of NO removal using BiOI were analyzed, and the main active species was also ·O2-. It is concluded that BiOI photocatalysts have high potential for wastewater treatment and waste gas clean-up in the mineral industry.
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Affiliation(s)
- Qianqian Nie
- Key Laboratory of Coal Processing and Efficient Utilization, Ministry of Education, Xuzhou 221116, China; (Q.N.); (L.J.); (G.Z.); (J.X.)
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, China
| | - Liuhu Jia
- Key Laboratory of Coal Processing and Efficient Utilization, Ministry of Education, Xuzhou 221116, China; (Q.N.); (L.J.); (G.Z.); (J.X.)
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, China
| | - Guoqing Zhang
- Key Laboratory of Coal Processing and Efficient Utilization, Ministry of Education, Xuzhou 221116, China; (Q.N.); (L.J.); (G.Z.); (J.X.)
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, China
| | - Jiewei Xie
- Key Laboratory of Coal Processing and Efficient Utilization, Ministry of Education, Xuzhou 221116, China; (Q.N.); (L.J.); (G.Z.); (J.X.)
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, China
| | - Jiayou Liu
- Key Laboratory of Coal Processing and Efficient Utilization, Ministry of Education, Xuzhou 221116, China; (Q.N.); (L.J.); (G.Z.); (J.X.)
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, China
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Chang J, Ma L, Liang W, Xu F, Wu D, Jiang K, Guo Y, Gao Z. Hierarchical bismuthyl bromide microspheres assembled by laminas as efficient negative material for aqueous alkali battery. J Colloid Interface Sci 2023; 649:761-771. [PMID: 37385041 DOI: 10.1016/j.jcis.2023.06.150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 06/01/2023] [Accepted: 06/09/2023] [Indexed: 07/01/2023]
Abstract
Bismuth (Bi) based compounds are promising negative materials in aqueous alkali batteries (AABs) for the 3-electron redox chemistry of Bi element within low potentials, the exploration of new Bi-based negative materials is still a meaningful work in this field. Herein, a hierarchical bismuthyl bromide (BiOBr) microspheres material assembled by laminas was prepared via solvothermal reaction and attempted as negative battery material for AAB. The pronounced redox reactions of Bi species in low potential enable high battery capacity, and the porous texture with high hydrophilicity facilitates diffusion of OH- and participation in faradaic reactions. When used as negative battery electrode, the BiOBr could offer decent specific capacity (Cs, 190 mAh g-1 at 1 A g-1), rate capability (Cs remained to 163 mAh g-1 at 8 A g-1) and cycleability (85% Cs retention after 1000 charge-discharge cycles). The AAB based on BiOBr negative electrode could export an energy density (Ecell) of 61.5 Wh kg-1 at power density (Pcell) of 558 W kg-1 and good cycleability. The current work showcases valuable application expansion of a traditional BiOBr photocatalyst in battery typed charge storage.
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Affiliation(s)
- Jiuli Chang
- School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Normal University, Henan Xinxiang 453007, PR China.
| | - Luyao Ma
- School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Normal University, Henan Xinxiang 453007, PR China
| | - Wenfang Liang
- School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Normal University, Henan Xinxiang 453007, PR China
| | - Fang Xu
- School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Normal University, Henan Xinxiang 453007, PR China
| | - Dapeng Wu
- Key Laboratory of Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory for Environment Pollution Control, International Joint Laboratory on Key Techniques in Water Treatment, Henan Province, School of Environment, Henan Normal University, Henan Xinxiang 453007, PR China
| | - Kai Jiang
- Key Laboratory of Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory for Environment Pollution Control, International Joint Laboratory on Key Techniques in Water Treatment, Henan Province, School of Environment, Henan Normal University, Henan Xinxiang 453007, PR China.
| | - Yuming Guo
- School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Normal University, Henan Xinxiang 453007, PR China.
| | - Zhiyong Gao
- School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Normal University, Henan Xinxiang 453007, PR China.
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7
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Ma H, Yang W, Tang H, Pan Y, Li W, Fang R, Shen Y, Dong F. Enhance the stability of oxygen vacancies in SrTiO 3 via metallic Ag modification for efficient and durable photocatalytic NO abatement. JOURNAL OF HAZARDOUS MATERIALS 2023; 452:131269. [PMID: 36989778 DOI: 10.1016/j.jhazmat.2023.131269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 03/14/2023] [Accepted: 03/21/2023] [Indexed: 06/19/2023]
Abstract
Oxygen vacancy engineering is an appealing strategy in the direction of photocatalytic pollutant purification. Unfortunately, the short lifetime of oxygen vacancies significantly limits photocatalytic efficiencies and their application. Herein, we report that such a scenario can be resolved via plasmonic silver metal modification SrTiO3 containing oxygen vacancies, which can achieve a high NO removal rate of 70.0% and long stability. This outstanding photocatalytic activity can be attributed to the increased optical response range and carrier separation by metallic Ag with the unique character of localized surface plasmonic resonance (LSPR) effect. Moreover, the intrinsic mechanism of how the plasmonic metal could enhance the stability of oxygen vacancies is proposed. The plasmon-driven hot carriers inject SrTiO3 support that promotes the regeneration of oxygen vacancies around the interface, meanwhile, the introduction of Ag nanoparticles prevents the oxygen vacancies from being filled by the reactant. This work elucidates the unique role of plasmonic metal in photocatalysis, providing an innovative idea for improving catalytic stability.
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Affiliation(s)
- Hao Ma
- National Research Base of Intelligent Manufacturing Service, Chongqing Technology and Business University, Chongqing 400067, China.
| | - Wenjia Yang
- National Research Base of Intelligent Manufacturing Service, Chongqing Technology and Business University, Chongqing 400067, China; Chongqing Energy Utilization Monitoring Center, Chongqing Energy Saving Technology Service Center, Chongqing 400000, China
| | - Hongyi Tang
- National Research Base of Intelligent Manufacturing Service, Chongqing Technology and Business University, Chongqing 400067, China
| | - Yue Pan
- National Research Base of Intelligent Manufacturing Service, Chongqing Technology and Business University, Chongqing 400067, China
| | - Wenting Li
- National Research Base of Intelligent Manufacturing Service, Chongqing Technology and Business University, Chongqing 400067, China
| | - Ruimei Fang
- National Research Base of Intelligent Manufacturing Service, Chongqing Technology and Business University, Chongqing 400067, China
| | - Yu Shen
- National Research Base of Intelligent Manufacturing Service, Chongqing Technology and Business University, Chongqing 400067, China
| | - Fan Dong
- National Research Base of Intelligent Manufacturing Service, Chongqing Technology and Business University, Chongqing 400067, China; Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313000, 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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Wu C, Tang Q, Zhang S, Lv K, Fuku X, Wang J. Surface Modification of TiO 2 by Hyper-Cross-Linked Polymers for Efficient Visible-Light-Driven Photocatalytic NO Oxidation. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37307316 DOI: 10.1021/acsami.3c03156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Solar-driven photocatalysis offers an environmentally friendly and sustainable approach for the removal of air pollutants such as nitric oxides without chemical addition. However, the low specific surface area and adsorption capacity of common photocatalysts restrict the surface reactions with NO at the ppb-level. In this study, imidazolium-based hyper-cross-linked polymer (IHP) was introduced to modify the surface of TiO2 to construct a porous TiO2/IHP composite photocatalyst. The as-prepared composite with hierarchical porous structure achieves a larger specific surface area as 309 m2/g than that of TiO2 (119 m2/g). Meanwhile, the wide light absorption range of the polymer has brought about the strong visible-light absorption of the TiO2/IHP composite. In consequence, the composite photocatalyst exhibits excellent performance toward NO oxidation at a low concentration of 600 ppb under visible-light irradiation, reaching a removal efficiency of 51.7%, while the generation of the toxic NO2 intermediate was suppressed to less than 1 ppb. The enhanced NO adsorption and the suppressed NO2 generation on the TiO2/IHP surface were confirmed by in situ monitoring technology. This work demonstrates that the construction of a porous structure is an effective approach for efficient NO adsorption and photocatalytic oxidation.
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Affiliation(s)
- Can Wu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education), Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Qian Tang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education), Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Sushu Zhang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education), Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Kangle Lv
- Key Laboratory of Resources Conversion and Pollution Control of the State Ethnic Affairs Commission, College of Resources and Environment, South-Central Minzu University, Wuhan 430074, P.R. China
| | - Xolile Fuku
- College of Science, Engineering and Technology, University of South Africa, Pretoria 1710, South Africa
| | - Jingyu Wang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education), Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
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Qi Y, Zhao J, Wang H, Zhang A, Li J, Yan M, Guo T. Shaddock peel-derived N-doped carbon quantum dots coupled with ultrathin BiOBr square nanosheets with boosted visible light response for high-efficiency photodegradation of RhB. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 325:121424. [PMID: 36906054 DOI: 10.1016/j.envpol.2023.121424] [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: 12/06/2022] [Revised: 03/03/2023] [Accepted: 03/08/2023] [Indexed: 06/18/2023]
Abstract
In the present work, we constructed a serials of novel shaddock peel-derived N-doped carbon quantum dots (NCQDs) coupled with BiOBr composites. The result showed that the as-synthesized BiOBr (BOB) was composed of ultrathin square nanosheets and flower-like structure, and NCQDs were uniformly dispersed on the surface of BiOBr. Furthermore, the BOB@NCQDs-5 with optimal NCQDs content displayed the top-flight photodegradation efficiency with ca. 99% of removal rate within 20 min under visible light and possessed excellent recyclability and photostability after 5 cycles. The reason was attributed to relatively large BET surface area, the narrow energy gap, inhibited recombination of charge carriers and excellent photoelectrochemical performances. Meanwhile, the improved photodegradation mechanism and possible reaction pathways were also elucidated in detail. On this basis, the study opens a novel perspective to obtain a highly efficient photocatalyst for practical environment remediation.
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Affiliation(s)
- Yu Qi
- College of Environment Science and Engineering, Taiyuan University of Technology, No. 209 University Street, Jinzhong 030600, Shanxi, PR China
| | - Jinjiang Zhao
- College of Environment Science and Engineering, Taiyuan University of Technology, No. 209 University Street, Jinzhong 030600, Shanxi, PR China
| | - Hongtao Wang
- College of Environment Science and Engineering, Taiyuan University of Technology, No. 209 University Street, Jinzhong 030600, Shanxi, PR China
| | - Aiming Zhang
- Department of Nuclear Environment Science, China Institute for Radiation Protection, No.102 Xuefu Street, Taiyuan 030006, Shanxi, PR China
| | - Jinping Li
- College of Chemistry and Chemical Engineering, Taiyuan University of Technology, 79 Yingze West Street, Taiyuan 030024, Shanxi, PR China; Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization, No.79 Yingze west street, Taiyuan 030024, Shanxi, PR China
| | - Meifang Yan
- College of Environment Science and Engineering, Taiyuan University of Technology, No. 209 University Street, Jinzhong 030600, Shanxi, PR China
| | - Tianyu Guo
- College of Environment Science and Engineering, Taiyuan University of Technology, No. 209 University Street, Jinzhong 030600, Shanxi, PR China; Department of Nuclear Environment Science, China Institute for Radiation Protection, No.102 Xuefu Street, Taiyuan 030006, Shanxi, PR China; Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization, No.79 Yingze west street, Taiyuan 030024, Shanxi, PR China.
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10
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Liu J, Huang X, Jia L, Liu L, Nie Q, Tan Z, Yu H. Microwave-Assisted Rapid Substitution of Ti for Zr to Produce Bimetallic (Zr/Ti)UiO-66-NH 2 with Congenetic "Shell-Core" Structure for Enhancing Photocatalytic Removal of Nitric Oxide. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2207198. [PMID: 36799195 DOI: 10.1002/smll.202207198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 01/18/2023] [Indexed: 05/18/2023]
Abstract
Efficient nitric oxide (NO) removal without nitrogen dioxide (NO2 ) emission is desired for the control of air pollution. Herein, a series of (Zr/Ti)UiO-66-NH2 with congenetic shell-core structure, denoted as Ti-UION, are rapidly synthesized by microwave-assisted post-synthetic modification for NO removal. The optimal Ti-UION (i.e., 2.5Ti-UION) exhibits the highest activity of 80.74% without NO2 emission with moisture, which is 21.65% greater than that of the UiO-66-NH2 . The NO removal efficiency of 2.5Ti-UION further increases to 95.92% without photocatalyst deactivation under an anhydrous condition. This is because selectively produced NO2 in photocatalysis is completely adsorbed into micropores, refreshing active sites for subsequent reaction. In addition, the enhanced photocatalytic activity after Ti substitution is due to the presence of Ti electron acceptor, the potential difference between the shell and core of Ti-UION crystal, and the high conductivity of TiO units. Additionally, the improved adsorption of gas molecules not only favors NO oxidation, but also avoids the emission of NO2 . This work provides a feasible strategy for rapid metal substitution in metal-organic frameworks and insights into enhanced NO photodegradation.
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Affiliation(s)
- Jiayou Liu
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou, Jiangsu, 221116, P. R. China
| | - Xiaoxiang Huang
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou, Jiangsu, 221116, P. R. China
| | - Liuhu Jia
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou, Jiangsu, 221116, P. R. China
| | - Linfeng Liu
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou, Jiangsu, 221116, P. R. China
| | - Qianqian Nie
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou, Jiangsu, 221116, P. R. China
- Department of Mechanical & Mechatronics Engineering, University of Waterloo, Waterloo, ON, N2L 3G1, Canada
| | - Zhongchao Tan
- Department of Mechanical & Mechatronics Engineering, University of Waterloo, Waterloo, ON, N2L 3G1, Canada
- Department of Energy and Power Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Hesheng Yu
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou, Jiangsu, 221116, P. R. China
- Department of Mechanical & Mechatronics Engineering, University of Waterloo, Waterloo, ON, N2L 3G1, Canada
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11
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Xie K, Xu S, Xu K, Hao W, Wang J, Wei Z. BiOCl Heterojunction photocatalyst: Construction, photocatalytic performance, and applications. CHEMOSPHERE 2023; 317:137823. [PMID: 36649899 DOI: 10.1016/j.chemosphere.2023.137823] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 12/14/2022] [Accepted: 01/10/2023] [Indexed: 06/17/2023]
Abstract
BiOCl semiconductors have attracted extensive amounts of attention and have substantial potential in alleviating energy shortages, improving sterilization performance, and solving environmental issues. To improve the optical quantum efficiency of layered BiOCl, the lifetimes of photogenerated electron-hole pairs, and BiOCl reduction capacity. During the past decade, researchers have designed many effective methods to weaken the effects of these limitations, and heterojunction construction is regarded as one of the most promising strategies. In this paper, BiOCl heterojunction photocatalysts designed and synthesized by various research groups in recent years were reviewed, and their photocatalytic properties were tested. Among them, direct Z-scheme and S-scheme photocatalysts have high redox potentials and intense redox capabilities. Hence, they exhibit excellent photocatalytic activity. Furthermore, the applications of BiOCl heterojunctions for pollutant degradation, CO2 reduction, water splitting, N2 fixation, organic synthesis, and tumor ablation are also reviewed. Finally, we summarize research on the BiOCl heterojunctions and put forth new insights on overcoming their present limitations.
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Affiliation(s)
- Kefeng Xie
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, 730070, China.
| | - Shengyuan Xu
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, 730070, China
| | - Kai Xu
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, 730070, China
| | - Wei Hao
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, 730070, China
| | - Jie Wang
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, 730070, China
| | - Zheng Wei
- Cancer Research Institute, Henan Academy Institute of Chinese Medicine, Zhengzhou 450000, Henan, China; School of Basic Medicine Sciences, Henan University of Chinese Medicine; Zhengzhou 450004, China.
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12
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Chen H, Hu Y, Ying Z, Xia Y, Ye J, Zhao J, Zhang S. BiOI-SnO 2 Heterojunction Design to Boost Visible-Light-Driven Photocatalytic NO Purification. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:4009. [PMID: 36901018 PMCID: PMC10001884 DOI: 10.3390/ijerph20054009] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 02/20/2023] [Accepted: 02/22/2023] [Indexed: 05/28/2023]
Abstract
The efficient, stable, and selective photocatalytic conversion of nitric oxide (NO) into harmless products such as nitrate (NO3-) is greatly desired but remains an enormous challenge. In this work, a series of BiOI/SnO2 heterojunctions (denoted as X%B-S, where X% is the mass portion of BiOI compared with the mass of SnO2) were synthesized for the efficient transformation of NO into harmless NO3-. The best performance was achieved by the 30%B-S catalyst, whose NO removal efficiency was 96.3% and 47.2% higher than that of 15%B-S and 75%B-S, respectively. Moreover, 30%B-S also exhibited good stability and recyclability. This enhanced performance was mainly caused by the heterojunction structure, which facilitated charge transport and electron-hole separation. Under visible light irradiation, the electrons gathered in SnO2 transformed O2 to ·O2- and ·OH, while the holes generated in BiOI oxidized H2O to produce ·OH. The abundantly generated ·OH, ·O2-, and 1O2 species effectively converted NO to NO- and NO2-, thus promoting the oxidation of NO to NO3-. Overall, the heterojunction formation between p-type BiOI and n-type SnO2 significantly reduced the recombination of photo-induced electron-hole pairs and promoted the photocatalytic activity. This work reveals the critical role of heterojunctions during photocatalytic degradation and provides some insight into NO removal.
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Affiliation(s)
- Han Chen
- Key Laboratory for Technology in Rural Water Management of Zhejiang Province, Zhejiang University of Water Resources and Electric Power, Hangzhou 310018, China
| | - Yutao Hu
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310014, China
| | - Zanyun Ying
- College of Science & Technology, Ningbo University, Ningbo 315212, China
| | - Yinfeng Xia
- Key Laboratory for Technology in Rural Water Management of Zhejiang Province, Zhejiang University of Water Resources and Electric Power, Hangzhou 310018, China
| | - Jiexu Ye
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310014, China
| | - Jingkai Zhao
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310014, China
| | - Shihan Zhang
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310014, China
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Haldar R, Ghosh A, Maji TK. Charge transfer in metal-organic frameworks. Chem Commun (Camb) 2023; 59:1569-1588. [PMID: 36655919 DOI: 10.1039/d2cc05522h] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Metal-organic frameworks (MOFs, also known as porous coordination polymers or PCPs) are a novel class of crystalline porous material. The tailorable porous structure, in terms of size, geometry and function, has attracted the attention of researchers across all disciplines of materials science. One of the many exciting aspects of MOFs is that through directional and reversible coordination bonding, organic linkers (chromophores with metal-coordinating functional groups) and metal ions (and clusters) can be spatially organized in a preconceived geometry. The well-defined spatial geometry of the metals and linkers is very advantageous for optoelectronic functions (solar cells, light-emitting diodes, photocatalysts) of the materials. This feature article evaluates the scope of charge transfer (CT) interactions in MOFs, involving the organic linkers and metal ion or cluster components. Irrespective of the type (size, shape, electronic property) of organic chromophores involved, MOFs provide an insightful path to design and make the CT process efficient. The selected examples of MOFs with CT characteristics do not only illustrate the design principles but render a pathway towards understanding the complex photophysical processes and implementing those for future optoelectronic and catalytic applications.
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Affiliation(s)
- Ritesh Haldar
- Tata Institute of Fundamental Research (TIFR) Hyderabad, Hyderabad 500046, India.
| | - Adrija Ghosh
- New Chemistry Unit (NCU), Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore-560064, India.
| | - Tapas Kumar Maji
- New Chemistry Unit (NCU), Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore-560064, India. .,Chemistry and Physics of Materials Unit (CPMU), School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore-560064, India
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14
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Newly constructed Z-scheme Cu2ZnSnS4/BiOBr heterostructure for high-efficient photocatalytic applications. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2023.131123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
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15
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Xie Z, Xiao G, Zeng X, Yang M, Yao J. Ion-exchange synthesis Ag@Bi2WO6/FeWO4 nanosheet with white-LED-light-driven for efficient activation of peroxymonosulfate: synthesis, characterization, and mechanism. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2023]
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16
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Xia X, Xie C, Che Q, Yang P. Potassium-Derived Charge Channels in Boron-Doped g-C 3N 4 Nanosheets for Photocatalytic NO Oxidation and Hydrogen Evolution. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:1250-1261. [PMID: 36623173 DOI: 10.1021/acs.langmuir.2c03035] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
The application of graphitic carbon nitride (g-C3N4) in photocatalytic NO oxidation was limited due to severe recombination of photogenerated carriers and low concentration of oxidizing species. In this work, K and B were introduced into the interlayer and in-plane framework of g-C3N4 to address this challenge through the thermal polymerization process. The synthesized K-doped B-g-C3N4 nanosheets exhibited expanded light absorption and low charge recombination efficiency. In addition, the doping of K and B reduced the band gap of g-C3N4, which corresponded to enhanced light absorption. B was introduced into the in-plane structure by replacing C atoms, which adjusted the in-plane electron distribution. K was inserted into the interlayer by binding to the N and C atoms of adjacent layers. K-derived electron transfer channels were constructed, which increased electron delocalization and expanded the π-conjugate system. More electrons were transferred through the interlayer channels and were involved in the reaction process. The severe carrier recombination and weak transfer were improved due to the synergistic effect of K and B doping. K-doped B-g-C3N4 nanosheets exhibited enhanced generation of superoxide radicals and hydroxyl radicals, which played a key role during NO oxidation. The photocatalytic NO oxidation efficiency of codoped g-C3N4 nanosheets reached 61%, which was 2.1 and 1.2 times of that of pristine g-C3N4 and B-doped g-C3N4, respectively. The codoped g-C3N4 sample still exhibited stable photocatalytic NO oxidation efficiency after five cycles. This result provided a potential idea for improving the charge distribution and transfer of layered materials by codoping metallic and nonmetallic elements and for photocatalytic NO oxidation.
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Affiliation(s)
- Xiang Xia
- School of Material Science and Engineering, University of Jinan, Jinan250022, P. R. China
| | - Cong Xie
- School of Material Science and Engineering, University of Jinan, Jinan250022, P. R. China
| | - Quande Che
- School of Material Science and Engineering, University of Jinan, Jinan250022, P. R. China
| | - Ping Yang
- School of Material Science and Engineering, University of Jinan, Jinan250022, P. R. China
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17
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He R, Wang Z, Deng F, Li X, Peng Y, Deng Y, Zou J, Luo X, Liu X. Tunable Bi-bridge S-scheme Bi2S3/BiOBr heterojunction with oxygen vacancy and SPR effect for efficient photocatalytic reduction of Cr(VI) and industrial electroplating wastewater treatment. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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18
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Construction of hierarchical FeIn2S4/BiOBr S-scheme heterojunction with enhanced visible-light photocatalytic performance for antibiotics degradation. ADV POWDER TECHNOL 2022. [DOI: 10.1016/j.apt.2022.103859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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19
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Pan L, Zhang M, Mei H, Yao L, Jin Z, Liu H, Zhou S, Yao Z, Zhu G, Cheng L, Zhang L. 3D bionic reactor optimizes photon and mass transfer by expanding reaction space to enhance photocatalytic CO2 reduction. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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20
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Jian L, Li S, Sun H, He Q, Chen J, Zhao Y, Li Y. Structure-induced highly selective adsorption and photocatalytic pollutant degradation performance of BiOBr. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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21
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Ren Q, He Y, Wang H, Sun Y, Dong F. Photo-Switchable Oxygen Vacancy as the Dynamic Active Site in the Photocatalytic NO Oxidation Reaction. ACS Catal 2022. [DOI: 10.1021/acscatal.2c03353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Qin Ren
- Research Center for Environmental and Energy Catalysis, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, Sichuan611731, China
| | - Ye He
- School of Resources and Environment, University of Electronic Science and Technology of China, Chengdu, Sichuan611731, China
| | - Hong Wang
- Research Center for Environmental and Energy Catalysis, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, Sichuan611731, China
| | - Yanjuan Sun
- School of Resources and Environment, University of Electronic Science and Technology of China, Chengdu, Sichuan611731, China
| | - Fan Dong
- Research Center for Environmental and Energy Catalysis, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, Sichuan611731, China
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22
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Cui Z, Zhao M, Li S, Wang J, Xu Y, Ghazzal MN, Colbeau-Justin C, Pan D, Wu W. Facile Vacuum Annealing of TiO 2 with Ethanol-Induced Enhancement of Its Photocatalytic Performance under Visible Light. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c01842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhenpeng Cui
- Frontiers Science Center for Rare Isotopes, Lanzhou University, Lanzhou 730000, China
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - Min Zhao
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - Shuyang Li
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - Jingjing Wang
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - Yang Xu
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - Mohamed Nawfal Ghazzal
- Institue de Chimie Physique, UMR 8000 CNRS, Université Paris-Saclay, Orsay 91405, France
| | | | - Duoqiang Pan
- Frontiers Science Center for Rare Isotopes, Lanzhou University, Lanzhou 730000, China
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - Wangsuo Wu
- Frontiers Science Center for Rare Isotopes, Lanzhou University, Lanzhou 730000, China
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
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23
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Zhong F, Yuan C, He Y, Sun Y, Sheng J, Dong F. Dual-quantum-dots heterostructure with confined active interface for promoted photocatalytic NO abatement. JOURNAL OF HAZARDOUS MATERIALS 2022; 438:129463. [PMID: 35780741 DOI: 10.1016/j.jhazmat.2022.129463] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 06/14/2022] [Accepted: 06/23/2022] [Indexed: 06/15/2023]
Abstract
Constructing heterostructure is an effective way to fabricate advanced photocatalysts. However, the catalytic performance of typical common multi-dimensional bulk heterostructure still suffers from the limited active interface and inefficient carrier migration. Herein, we successfully synthesize the SnO2/Cs3Bi2I9 dual-quantum-dots nanoheterostructure (labeled as SCX, X = 1, 2, 3) for efficiently and stably photocatalytic NO removal under visible light irradiation. The NO removal rate of SC2 is almost 8 and 17 times higher than that of the single SnO2 and Cs3Bi2I9, respectively. Moreover, the SC2 photocatalyst shows only 3 % attenuation after five consecutive cycles, demonstrating good photocatalytic stability. Systematic experimental characterization and theoretical density functional theory calculations revealed that the high activity and stability of SCX originated from the efficient charge transfer at the confined interface between SnO2 and Cs3Bi2I9 quantum dots. This work provides a new perspective for constructing innovative dual-quantum-dots nanoheterostructure and assesses their potential in photocatalytic environmental applications.
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Affiliation(s)
- Fengyi Zhong
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, Zhejiang, China; College of Environment and Resources & Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Chaowei Yuan
- College of Environment and Ecology, Chongqing University, Chongqing 400044, China
| | - Ye He
- College of Environment and Resources & Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Yanjuan Sun
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, Zhejiang, China; College of Environment and Resources & Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Jianping Sheng
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, Zhejiang, China; College of Environment and Resources & Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China.
| | - Fan Dong
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, Zhejiang, China; College of Environment and Resources & Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China
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24
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Lei J, Gu X, Xiao P, Ding G, Yang Y, Fu X, Long B, Chen S, Meng S. Fabrication of 2D/2D BiOBr/g-C 3N 4 with efficient photocatalytic activity and clarification of its mechanism. Phys Chem Chem Phys 2022; 24:19806-19816. [PMID: 35946338 DOI: 10.1039/d2cp02381d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Precise regulation of photoexcited charge carriers for separation and transportation is a core requirement for practical application in the photocatalysis field. Herein, a 2D/2D BiOBr/g-C3N4 heterojunction is prepared by a self-assembly method and exhibits enhanced and stable activity for photocatalytic degradation of bisphenol A (BPA) and norfloxacin (NFA) under visible light. Compared to pure g-C3N4, the kinetic constants of BPA and NFA degradation over BiOBr/g-C3N4 are enhanced by about 14.74 and 4.01 times, respectively. The separation and transportation mechanism for the photoexcited charge carriers is clarified by electron paramagnetic resonance (EPR), in situ X-ray photoelectron spectroscopy (in situ XPS), and theoretical calculations. The results show that BiOBr/g-C3N4 exhibits the feature of a relative p-n junction, in which the charges photoexcited on BiOBr/g-C3N4 with high redox potentials can be kept and spatially separated. Moreover, the built-in electric field with the direction of g-C3N4 → BiOBr and the opportune band curvature provide the driving force for charge separation and transportation. Additionally, BPA and NFA degradation intermediates are also detected by liquid chromatography-mass spectrometry. It is of great significance to fabricate efficient photocatalysts for environmental purification and other targeted reactions.
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Affiliation(s)
- Jian Lei
- Key Laboratory of Green and Precise Synthetic Chemistry and applications, Ministry of Education, College of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China.
| | - Xiaomeng Gu
- Key Laboratory of Green and Precise Synthetic Chemistry and applications, Ministry of Education, College of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China.
| | - Peipei Xiao
- Key Laboratory of Green and Precise Synthetic Chemistry and applications, Ministry of Education, College of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China. .,School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, China.
| | - Guangzhu Ding
- Key Laboratory of Green and Precise Synthetic Chemistry and applications, Ministry of Education, College of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China.
| | - Yang Yang
- Key Laboratory of Green and Precise Synthetic Chemistry and applications, Ministry of Education, College of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China.
| | - Xianliang Fu
- Key Laboratory of Green and Precise Synthetic Chemistry and applications, Ministry of Education, College of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China.
| | - Baihua Long
- College of Material and Chemical Engineering, Pingxiang University, Pingxiang, 337055, P. R. China.
| | - Shifu Chen
- Key Laboratory of Green and Precise Synthetic Chemistry and applications, Ministry of Education, College of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China.
| | - Sugang Meng
- Key Laboratory of Green and Precise Synthetic Chemistry and applications, Ministry of Education, College of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China. .,School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, China.
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25
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Zhang J, Cheng D, Sheng Q, Feng C, Wang F, Wu H. Detection of Cr(VI) in agricultural products by photoelectrochemical sensor based on SnS/Bi2MoO6. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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26
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Yu F, Jin M, Zhang Y, Lei C, Zhou L, Zhu H, Yu B. Visible-Light-Driven Zr-MOF/BiOBr Heterojunction for the Efficient Synchronous Removal of Hexavalent Chromium and Rhodamine B from Wastewater. ACS OMEGA 2022; 7:25066-25077. [PMID: 35910172 PMCID: PMC9330233 DOI: 10.1021/acsomega.2c01298] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
With the rapid industrial development, the coexistence of multiple pollutants in wastewater has become a common phenomenon. Thus, developing highly efficient decontamination methods is imperative. In this work, a string of UiO-66-NH2/BiOBr heterojunctions with varying ratios of BiOBr were prepared and applied to remove hexavalent chromium Cr(VI) and rhodamine B (RhB). The possible growth process of BiOBr nanosheets on UiO-66-NH2, removal activity of contaminants, and photocatalysis mechanism were investigated. When the mass ratio of UiO-66-NH2 to BiOBr reaches 1:0.75, the heterojunction (NB-75) shows optimal photocatalytic activity. After 30 min of adsorption, the total removal rates of Cr(VI) (50 mg/L) and RhB (10 mg/L) over NB-75 (0.25 g/L) reaches 96.7% within 120 min of illumination and 98.9% within 80 min of illumination, respectively. For the removal process, there are two factors. The first is the high adsorption capacity for RhB and Cr(VI) owing to the high porosity of UiO-66-NH2 and interlayer surface positive charge of BiOBr. The second is the improved visible-light photocatalytic performance of the UiO-66-NH2/BiOBr heterojunction via rapid separation of photoinduced carriers. In addition, the active species capture study reveals that the electrons (e-) and the superoxide radicals (•O2 -) play key roles in Cr(VI) reduction, while the holes (h+) are major reactive groups participating in the degradation of RhB. This work demonstrated a kind of promising MOF-based photocatalysis material for eliminating Cr(VI) and RhB simultaneously.
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Affiliation(s)
- Fan Yu
- Zhejiang
Provincial Key Laboratory of Fiber Materials and Manufacturing Technology, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Mengting Jin
- Zhejiang
Provincial Key Laboratory of Fiber Materials and Manufacturing Technology, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Yunxiao Zhang
- Zhejiang
Provincial Key Laboratory of Fiber Materials and Manufacturing Technology, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Caihong Lei
- Zhejiang
Provincial Key Laboratory of Fiber Materials and Manufacturing Technology, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Lan Zhou
- Engineering
Research Center for Eco-Dyeing and Finishing of Textiles, Ministry
of Education, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Hailin Zhu
- Zhejiang
Provincial Key Laboratory of Fiber Materials and Manufacturing Technology, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Bin Yu
- Zhejiang
Provincial Key Laboratory of Fiber Materials and Manufacturing Technology, Zhejiang Sci-Tech University, Hangzhou 310018, China
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27
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Photocatalytic Conversion of Fructose to Lactic Acid by BiOBr/Zn@SnO2 Material. Catalysts 2022. [DOI: 10.3390/catal12070719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Photocatalysis provides a prospective approach for achieving high-value products under mild conditions. To realize this, constructing a selective, low-cost and environmentally friendly photocatalyst is the most critical factor. In this study, BiOBr/Zn@SnO2 is fabricated by a one-pot hydrothermal synthesis method and BiOBr: SnO2 ratio is 3:1; this material is applied as photocatalyst in fructose selective conversion to lactic acid. The bandgap structure can be regulated via two-step modification, which includes Zn doping SnO2 and Zn@SnO2 coupling BiOBr. The photocatalyst shows excellent conversion efficiency in fructose and high selectivity in lactic acid generation under alkaline conditions. The conversion rate is almost 100%, and the lactic acid yield is 79.6% under optimal reaction conditions. The catalyst is highly sustainable in reusability; the lactic acid yield can reach 67.4% after five runs. The possible reaction mechanism is also proposed to disclose the photocatalysis processes.
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28
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Self-doped Br in Bi5O7Br ultrathin nanotubes: Efficient photocatalytic NO purification and mechanism investigation. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.10.082] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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29
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Li Q, Zhao J, Shang H, Ma Z, Cao H, Zhou Y, Li G, Zhang D, Li H. Singlet Oxygen and Mobile Hydroxyl Radicals Co-operating on Gas-Solid Catalytic Reaction Interfaces for Deeply Oxidizing NO x. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:5830-5839. [PMID: 35404578 DOI: 10.1021/acs.est.2c00622] [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] [Indexed: 06/14/2023]
Abstract
Learning from the important role of porphyrin-based chromophores in natural photosynthesis, a bionic photocatalytic system based on tetrakis (4-carboxyphenyl) porphyrin-coupled TiO2 was designed for photo-induced treating low-concentration NOx indoor gas (550 parts per billion), achieving a high NO removal rate of 91% and a long stability under visible-light (λ ≥ 420 nm) irradiation. Besides the great contribution of the conventional •O2- reactive species, a synergic effect between a singlet oxygen (1O2) and mobile hydroxyl radicals (•OHf) was first illustrated for removing NOx indoor gas (1O2 + 2NO → 2NO2, NO2 + •OHf → HNO3), inhibiting the production of the byproducts of NO2. This work is helpful for understanding the surface mechanism of photocatalytic NOx oxidation and provides a new perspective for the development of highly efficient air purification systems.
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Affiliation(s)
- Qian Li
- The Education Ministry Key Lab of Resource Chemistry, Joint International Research Laboratory of Resource Chemistry, Ministry of Education, and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Frontiers Science Center of Biomimetic Catalysis, Shanghai Normal University, Shanghai 200234, P. R. China
| | - Jingjing Zhao
- The Education Ministry Key Lab of Resource Chemistry, Joint International Research Laboratory of Resource Chemistry, Ministry of Education, and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Frontiers Science Center of Biomimetic Catalysis, Shanghai Normal University, Shanghai 200234, P. R. China
| | - Huan Shang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental & Applied Chemistry, College of Chemistry,Central China Normal University, Wuhan 430079, P. R. China
| | - Zhong Ma
- Department of Chemical Engineering and Waterloo Institute for Nanotechnology (WIN), University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Haiyan Cao
- The Education Ministry Key Lab of Resource Chemistry, Joint International Research Laboratory of Resource Chemistry, Ministry of Education, and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Frontiers Science Center of Biomimetic Catalysis, Shanghai Normal University, Shanghai 200234, P. R. China
| | - Yue Zhou
- The Education Ministry Key Lab of Resource Chemistry, Joint International Research Laboratory of Resource Chemistry, Ministry of Education, and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Frontiers Science Center of Biomimetic Catalysis, Shanghai Normal University, Shanghai 200234, P. R. China
| | - Guisheng Li
- The Education Ministry Key Lab of Resource Chemistry, Joint International Research Laboratory of Resource Chemistry, Ministry of Education, and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Frontiers Science Center of Biomimetic Catalysis, Shanghai Normal University, Shanghai 200234, P. R. China
| | - Dieqing Zhang
- The Education Ministry Key Lab of Resource Chemistry, Joint International Research Laboratory of Resource Chemistry, Ministry of Education, and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Frontiers Science Center of Biomimetic Catalysis, Shanghai Normal University, Shanghai 200234, P. R. China
| | - Hexing Li
- The Education Ministry Key Lab of Resource Chemistry, Joint International Research Laboratory of Resource Chemistry, Ministry of Education, and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Frontiers Science Center of Biomimetic Catalysis, Shanghai Normal University, Shanghai 200234, P. R. China
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30
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Wang Y, Chang F, Wei Z, Yang C, Liu DG, Yan T, Pang Q, Chen S. Photocatalytic NO removal by WO 3 samples prepared via a ball milling treatment under different parameters. INORG NANO-MET CHEM 2022. [DOI: 10.1080/24701556.2022.2068586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Yuqing Wang
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai, P.R. China
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, P.R. China
| | - Fei Chang
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, P.R. China
| | - Zhixun Wei
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, P.R. China
| | - Cheng Yang
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, P.R. China
| | - Deng-guo Liu
- Shanghai Environmental Monitoring Center, Shanghai, P.R. China
| | - Tianyi Yan
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, P.R. China
| | - Qingyun Pang
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, P.R. China
| | - Shengwen Chen
- School of Environmental and Materials Engineering, Shanghai Polytechnic University, Shanghai, P.R. China
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31
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Electron-Level Mechanistic Insights into Ce Doping for Enhanced Efficiency Degradation of Bisphenol A under Visible Light Irradiation. NANOMATERIALS 2022; 12:nano12081382. [PMID: 35458090 PMCID: PMC9027963 DOI: 10.3390/nano12081382] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 04/09/2022] [Accepted: 04/15/2022] [Indexed: 02/01/2023]
Abstract
Bismuth oxybromide (BiOBr), with its special layered structure, is known to have potential as a visible-light-driven photocatalyst. However, the rapid recombination and short lifetime of the photogenerated carriers of BiOBr restrict its photocatalytic efficiency for the degradation of organic pollutants. Given the similar ionic size of Ce and Bi, Ce atoms might be easily introduced into the crystal of BiOBr to tailor its band structure. In this study, Ce doped BiOBr (Ce-BiOBr) samples with different percentages of Ce contents were prepared via a hydrothermal method. The intrinsic photocatalytic efficiency of Ce0.2-BiOBr for the degradation of bisphenol A (BPA) was 3.66 times higher than that of pristine BiOBr under visible light irradiation. The mechanism of Ce-doping modification for the enhanced photocatalytic performance was demonstrated based on a series of experiments and DFT calculation. The narrowed bandgap, the enhanced charge separation efficiency and Ce-doping energy level contributed to the remarkable photocatalytic performance of Ce-BiOBr.
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32
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Chang F, Wang X, Zhao S, Zhang X, Hu X. Fabrication of Bi12GeO20/Bi2S3 hybrids with surface oxygen vacancies by a facile CS2-mediated manner and enhanced photocatalytic performance in water and saline water. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120532] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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33
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Jia T, Luo F, Wu J, Chu F, Xiao Y, Liu Q, Pan W, Li F. Nanosized Zn-In spinel-type sulfides loaded on facet-oriented CeO 2 nanorods heterostructures as Z-scheme photocatalysts for efficient elemental mercury removal. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 813:151865. [PMID: 34813819 DOI: 10.1016/j.scitotenv.2021.151865] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 11/17/2021] [Accepted: 11/17/2021] [Indexed: 06/13/2023]
Abstract
Developing of effective photocatalysts is of great significance for realizing photocatalytic environment purification. Herein, an interfacial bent bands and internal electric field modulated CeO2/ZnIn2S4 Z-scheme heterojunction for photocatalytic Hg0 oxidation. It is found that the charge transfer mechanism of Z-scheme was driven by the interfacial bent bands and internal electric field, which was confirmed by electrochemical measurements, electron spin paramagnetic resonance spectroscopy and density functional theory calculations. Moreover, the (110) dominant CeO2 nanorods partially converted Ce4+ to Ce3+ and formed oxygen vacancies, and as an electron mediator in Z-scheme systems to further facilitate charge transfer process and molecular oxygen activation. Under the strong synergistic effect between the large specific surface area, Z-scheme heterojunction and oxygen vacancies, the optimized photocatalyst exhibits 86.7% of photocatalytic removal efficiency. This work provides Z-scheme heterojunction photocatalyst design perspective for photocatalytic air purification.
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Affiliation(s)
- Tao Jia
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
| | - Fei Luo
- China-UK Low Carbon College, Shanghai Jiao Tong University, Shanghai 201306, China
| | - Jiang Wu
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, China.
| | - Fenghong Chu
- College of Electronics and Information Engineering, Shanghai University of Electric Power, Shanghai 200090, China
| | - Yixuan Xiao
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
| | - Qizhen Liu
- Shanghai Environment Monitoring Center, Shanghai 200030, China
| | - Weiguo Pan
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
| | - Fengting Li
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
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34
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Co3O4 modified Mn0.2Cd0.8S with different shells forms p-n heterojunction to optimize energy/mass transfer for efficient photocatalytic hydrogen evolution. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120318] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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35
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Zhang X, Han L, Chen H, Wang S. Direct catalytic nitrogen oxide removal using thermal, electrical or solar energy. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.07.034] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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36
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Van Pham V, Tran HH, Truong TK, Cao TM. Tin dioxide nanomaterial-based photocatalysts for nitrogen oxide oxidation: a review. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2022; 13:96-113. [PMID: 35116216 PMCID: PMC8790863 DOI: 10.3762/bjnano.13.7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 12/30/2021] [Indexed: 05/05/2023]
Abstract
Semiconducting SnO2 photocatalyst nanomaterials are extensively used in energy and environmental research because of their outstanding physical and chemical properties. In recent years, nitrogen oxide (NO x ) pollutants have received particular attention from the scientific community. The photocatalytic NO x oxidation will be an important contribution to mitigate climate change in the future. Existing review papers mainly focus on applying SnO2 materials for photocatalytic oxidation of pollutants in the water, while studies on the decomposition of gas pollutants are still being developed. In addition, previous studies have shown that the photocatalytic activity regarding NO x decomposition of SnO2 and other materials depends on many factors, such as physical structure and band energies, surface and defect states, and morphology. Recent studies have been focused on the modification of properties of SnO2 to increase the photocatalytic efficiency of SnO2, including bandgap engineering, defect regulation, surface engineering, heterojunction construction, and using co-catalysts, which will be thoroughly highlighted in this review.
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Affiliation(s)
- Viet Van Pham
- Photocatalysis Research Group (PRG), Faculty of Materials Science and Technology, University of Science, VNU–HCM, 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, 700000, Viet Nam
| | - Hong-Huy Tran
- Photocatalysis Research Group (PRG), Faculty of Materials Science and Technology, University of Science, VNU–HCM, 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, 700000, Viet Nam
| | - Thao Kim Truong
- Photocatalysis Research Group (PRG), Faculty of Materials Science and Technology, University of Science, VNU–HCM, 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, 700000, Viet Nam
| | - Thi Minh Cao
- HUTECH University, 475A Dien Bien Phu Street, Binh Thanh District, Ho Chi Minh City, 700000, Viet Nam
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37
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Qi Y, Zhao J, Wang H, Yan M, Guo T. Structural engineering of BiOBr nanosheets for boosted photodegradation performance toward rhodamine B. RSC Adv 2022; 12:8908-8917. [PMID: 35424843 PMCID: PMC8985173 DOI: 10.1039/d2ra00375a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 03/11/2022] [Indexed: 11/21/2022] Open
Abstract
A series of BiOBr nanosheets were synthesized through a facile solvothermal method, whose structures were adjusted by changing solvent ratios. Their photodegradation properties toward rhodamine B (RhB) were further investigated under visible light irradiation. The photocatalytic results indicated that the B-1:3 sample showed superior photoactivity and the RhB removal efficiency attained 97% within 30 min. The outstanding photodegradation activity can be ascribed to the small particle size and thickness, suppressed e−–h+ pair recombination and more active electrons and holes. Moreover, free radical quenching experiments suggest that ·O2− and h+ play a crucial role in improving photoactivity. This work opens a new avenue to boost the removal rate of organic pollutants by engineering the solvent ratios of photocatalysts in the wastewater treatment field. A series of BiOBr nanosheets were synthesized through a facile solvothermal method, whose structures were adjusted by changing solvent ratios.![]()
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Affiliation(s)
- Yu Qi
- College of Environment Science and Engineering, Taiyuan University of Technology, No. 209 University Street, Jinzhong 030600, Shanxi, PR China
| | - Jinjiang Zhao
- College of Environment Science and Engineering, Taiyuan University of Technology, No. 209 University Street, Jinzhong 030600, Shanxi, PR China
| | - Hongtao Wang
- College of Environment Science and Engineering, Taiyuan University of Technology, No. 209 University Street, Jinzhong 030600, Shanxi, PR China
| | - Meifang Yan
- College of Environment Science and Engineering, Taiyuan University of Technology, No. 209 University Street, Jinzhong 030600, Shanxi, PR China
| | - Tianyu Guo
- College of Environment Science and Engineering, Taiyuan University of Technology, No. 209 University Street, Jinzhong 030600, Shanxi, PR China
- Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization, No. 79 Yingze West Street, Taiyuan 030024, Shanxi, PR China
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38
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Yang W, Ren Q, Zhong F, Wang Y, Wang J, Chen R, Li J, Dong F. Promotion mechanism of -OH group intercalation for NOx purification on BiOI photocatalyst. NANOSCALE 2021; 13:20601-20608. [PMID: 34874391 DOI: 10.1039/d1nr05363a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Bismuth oxyiodide (BiOI) is a traditional layered oxide photocatalyst that performs in a wide visible-light absorption band, owing to its appropriate band structure. Nevertheless, its photocatalytic efficiency is immensely inhibited due to the serious recombination of photogenerated charge carriers. Herein, this great challenge is addressed via a new strategy of intralayer modification by -OH groups in BiOI, which leads to enhancement of the reactants' activation capacity to promote photocatalytic activity and generate more active species. Furthermore, analysis via a combination of experimental and theoretical methods revealed that the -OH group-functionalized samples reduce the energy barriers for conversion of the main intermediate (NO2), which is easily transformed to NO2-, thus accelerating the oxidation of NO to the final product (NO3-). This study gives insight into NO oxidation, improving the photocatalytic efficiency, and mastering the photocatalysis reaction mechanism to curb air pollution.
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Affiliation(s)
- Weiping Yang
- Research Center for Environmental and Energy Catalysis, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China.
| | - Qin Ren
- Research Center for Environmental and Energy Catalysis, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China.
| | - Fengyi Zhong
- Research Center for Environmental and Energy Catalysis, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China.
| | - Yanxia Wang
- Research Center for Environmental and Energy Catalysis, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China.
| | - Jielin Wang
- Research Center for Environmental and Energy Catalysis, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China.
| | - Ruimin Chen
- Research Center for Environmental and Energy Catalysis, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China.
| | - Jieyuan Li
- Research Center for Environmental and Energy Catalysis, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China.
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313000, China
| | - Fan Dong
- Research Center for Environmental and Energy Catalysis, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China.
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313000, China
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39
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Meng L, Qu Y, Jing L. Recent advances in BiOBr-based photocatalysts for environmental remediation. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.03.083] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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40
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Liu C, Mao S, Shi M, Wang F, Xia M, Chen Q, Ju X. Peroxymonosulfate activation through 2D/2D Z-scheme CoAl-LDH/BiOBr photocatalyst under visible light for ciprofloxacin degradation. JOURNAL OF HAZARDOUS MATERIALS 2021; 420:126613. [PMID: 34273881 DOI: 10.1016/j.jhazmat.2021.126613] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 07/06/2021] [Accepted: 07/07/2021] [Indexed: 06/13/2023]
Abstract
The synergistic effect between photocatalytic and peroxymonosulfate (PMS) activation has been widely applied in the field of sewage treatment. In this work, we synthesized a two-dimensional/two-dimensional (2D/2D) CoAl-LDH/BiOBr Z-scheme photocatalyst via a simple method. Then, multiple detection results demonstrated that CoAl-LDH was successfully anchored onto BiOBr, as well as formed an intimate interaction. Moreover, the photocatalytic degradation performance of the catalysts/PMS/vis system had been explored under several conditions (e.g., different catalyst doses, PMS doses, anions and pollutants). The 8 wt% CoAl-LDH/BiOBr composite exhibited the highest degradation efficiency (96%) of ciprofloxacin (CIP). In addition, radicals quenching experiments and electron paramagnetic resonance (EPR) indicated that •O2- and 1O2 were the primary radicals for CIP degradation. The photoelectrochemical measurement and photoluminescence (PL) confirmed that 8 wt% CoAl-LDH/BiOBr exhibited the highest separation and transfer rate of charge carriers. The liquid chromatography-mass spectrometer (LC-MS) analysis revealed that oxidation of the piperazine ring and defluorination were the main CIP degradation pathways. Density functional theory (DFT) calculation, including the laplacian bond order (LBO) and Fukui index, which was consistent with the results of LC-MS. This study explained the superiority of the synergistic effect between photocatalysis and PMS activation on the degradation of pollutants.
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Affiliation(s)
- Chun Liu
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Shuai Mao
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Mingxing Shi
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Fengyun Wang
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Mingzhu Xia
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Qun Chen
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou 213164, China.
| | - Xuehai Ju
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
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41
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Shi H, Zheng T, Zuo Y, Wu Q, Zhang Y, Fan Y, Tontiwachwuthikul P. Synthesis of Cu 3P/SnO 2 composites for degradation of tetracycline hydrochloride in wastewater. RSC Adv 2021; 11:33471-33480. [PMID: 35497533 PMCID: PMC9042268 DOI: 10.1039/d1ra05905j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 10/04/2021] [Indexed: 01/22/2023] Open
Abstract
Antibiotic drugs have become dominating organic pollutants in water resources, and efficient removal of antibiotic drugs is the priority task to protect the water environment. Cu3P/SnO2 photocatalysts of various Cu3P loadings (10-40 wt% Cu3P) were synthesized using a combination of hydrothermal synthesis and a partial annealing method. Their photocatalytic activity was tested for tetracycline hydrochloride (TC-HCl) degradation under visible light irradiation. Cu3P/SnO2 samples were characterized by X-ray diffraction (XRD), N2-adsorption, ultraviolet-visible diffuse reflectance spectra (UV-vis DRS), scanning electron microscopy (SEM) and electrochemical impedance spectroscopy (EIS). The results showed that the p-n type heterostructure between Cu3P and SnO2 was successfully constructed, and addition of Cu3P to SnO2 could improve its photocatalytic activity at an optimized loading of 30 wt% Cu3P. In photocatalytic degradation studies, removal rates of around 80% were found in 30 minutes of dark reaction and 140 min of photodegradation. The removal rate was superior to that of Cu3P and SnO2 alone under the same experimental conditions. According to trapping experiments and electron spin resonance (ESR) measurements, photogenerated holes (h+) and superoxide radicals ˙O2 - were considered as the main oxidation species in the present system. Finally, the reuse experiments showed high stability of Cu3P/SnO2. This study reports Cu3P as a cocatalyst combined with semiconductor SnO2 to form a highly efficient heterogeneous photocatalyst for the degradation of tetracycline hydrochloride for the first time.
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Affiliation(s)
- Huancong Shi
- Department of Environmental Science and Engineering, University of Shanghai for Science and Technology Shanghai 200093 P. R. China .,Huzhou Institute of Zhejiang University Huzhou Zhejiang 313000 P. R. China .,Clean Energy Technology Research Institute (CETRI), Faculty of Engineering and Applied Science, University of Regina 3737 Wascana Parkway Regina Saskatchewan S4S 0A2 Canada
| | - Tao Zheng
- Department of Environmental Science and Engineering, University of Shanghai for Science and Technology Shanghai 200093 P. R. China
| | - Yuanhui Zuo
- Huzhou Institute of Zhejiang University Huzhou Zhejiang 313000 P. R. China .,College of Environmental Science and Engineering, Tongji University Shanghai 200092 China
| | - Qiming Wu
- Department of Environmental Science and Engineering, University of Shanghai for Science and Technology Shanghai 200093 P. R. China
| | - Yun Zhang
- Department of Environmental Science and Engineering, University of Shanghai for Science and Technology Shanghai 200093 P. R. China
| | - Yi Fan
- Department of Environmental Science and Engineering, University of Shanghai for Science and Technology Shanghai 200093 P. R. China
| | - Paitoon Tontiwachwuthikul
- Clean Energy Technology Research Institute (CETRI), Faculty of Engineering and Applied Science, University of Regina 3737 Wascana Parkway Regina Saskatchewan S4S 0A2 Canada
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42
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Long D, Tu Y, Chai Y, Yuan R. Photoelectrochemical Assay Based on SnO 2/BiOBr p-n Heterojunction for Ultrasensitive DNA Detection. Anal Chem 2021; 93:12995-13000. [PMID: 34524810 DOI: 10.1021/acs.analchem.1c02745] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Herein, a photoelectrochemical (PEC) assay was designed for a highly sensitive DNA determination relying upon the SnO2/BiOBr p-n heterojunction as a photoactive material and SiO2 as a signal quencher. Compared with most traditional heterojunctions, the SnO2/BiOBr p-n heterostructure not only lessened the recombination of the photogenerated electron-hole pairs but also promoted the light-harvesting in the ultraviolet-visible (UV-vis) region, leading to further enhanced photoelectric conversion efficiency and photocurrent, which demonstrated 12.1-fold and 6.4-fold increments versus those of pure SnO2 and BiOBr, respectively. Additionally, the limited quantity of target DNA (a fragment of p53 gene) could be transformed into abundant output DNA-SiO2 by employing the Nt·BstNBI enzyme-assisted signal amplification procedure, leading to a highly improved detection sensitivity of the biosensor. Then, output DNA-SiO2 hybridized with the capture DNA anchored on the modified electrode surface, remarkably diminishing the PEC signal and thus achieving sensitive DNA determination. The elaborated PEC biosensor demonstrated outstanding performance within the linear range between 0.5 fM and 5 nM and a low limit of detection down to 0.18 fM, paving a new way for fabricating heterojunction with exceptional photoactive performance and demonstrating the enormous potential for detecting multitudinous biomarkers in bioanalysis and clinical therapy.
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Affiliation(s)
- Dan Long
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Yupeng Tu
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Yaqin Chai
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Ruo Yuan
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
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Fragoso J, Oliva MA, Camacho L, Cruz-Yusta M, de Miguel G, Martin F, Pastor A, Pavlovic I, Sánchez L. Insight into the role of copper in the promoted photocatalytic removal of NO using Zn 2-xCu xCr-CO 3 layered double hydroxide. CHEMOSPHERE 2021; 275:130030. [PMID: 33662730 DOI: 10.1016/j.chemosphere.2021.130030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 02/16/2021] [Accepted: 02/17/2021] [Indexed: 06/12/2023]
Abstract
In this work the ability of Zn2-xCuxCr-CO3 layered double hydroxides (LDHs) as highly efficient DeNOx photocatalysts was studied. LDHs with x = 0, 0.2 and 0.4 were prepared using a coprecipitation method. The samples were characterized by different techniques such as XRD, XPS, FT-IR, ICP-MS, TG, SBET, SEM and Diffuse reflectance (DR). The increased amount of copper ions in the LDH layers gave rise to slight changes in the structure and morphology and an important variation of the optical properties of the LDHs. The prepared ZnCuCr-CO3 photocatalysts exhibited favourable conversion efficiency (51%) and an extraordinary selectivity (97%) for the photochemical NO abatement. The photochemical mechanism was elucidated from DOS, EPR, Femtosecond transient absorption and in-situ DRIFTS studies. The results suggested that the presence of Cu2+ ions in the LDH framework introduced new states in the valence band states, thus favouring the production and mobility of e-/h+ charge carriers and a greater production of ⋅O2- and ⋅OH.
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Affiliation(s)
- J Fragoso
- Departamento de Química Inorgánica e Ingeniería Química, Instituto Universitario de Nanoquímica IUNAN, Universidad de Córdoba, Campus de Rabanales, E-14014, Córdoba, Spain
| | - M A Oliva
- Departamento de Química Inorgánica e Ingeniería Química, Instituto Universitario de Nanoquímica IUNAN, Universidad de Córdoba, Campus de Rabanales, E-14014, Córdoba, Spain
| | - L Camacho
- Departamento de Química Física y Termodinámica Aplicada, Instituto Universitario de Nanoquímica IUNAN, Universidad de Córdoba, Campus de Rabanales, E-14014, Córdoba, Spain
| | - M Cruz-Yusta
- Departamento de Química Inorgánica e Ingeniería Química, Instituto Universitario de Nanoquímica IUNAN, Universidad de Córdoba, Campus de Rabanales, E-14014, Córdoba, Spain
| | - G de Miguel
- Departamento de Química Física y Termodinámica Aplicada, Instituto Universitario de Nanoquímica IUNAN, Universidad de Córdoba, Campus de Rabanales, E-14014, Córdoba, Spain
| | - F Martin
- Departamento de Ingeniería Química, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos, E-29071, Málaga, Spain
| | - A Pastor
- Departamento de Química Inorgánica e Ingeniería Química, Instituto Universitario de Nanoquímica IUNAN, Universidad de Córdoba, Campus de Rabanales, E-14014, Córdoba, Spain
| | - I Pavlovic
- Departamento de Química Inorgánica e Ingeniería Química, Instituto Universitario de Nanoquímica IUNAN, Universidad de Córdoba, Campus de Rabanales, E-14014, Córdoba, Spain.
| | - L Sánchez
- Departamento de Química Inorgánica e Ingeniería Química, Instituto Universitario de Nanoquímica IUNAN, Universidad de Córdoba, Campus de Rabanales, E-14014, Córdoba, Spain.
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Velmurugan S, Zhi-Xiang L, C-K Yang T, Juan JC. Rational design of built-in stannic oxide-copper manganate microrods p-n heterojunction for photoelectrochemical sensing of tetracycline. CHEMOSPHERE 2021; 271:129788. [PMID: 33556631 DOI: 10.1016/j.chemosphere.2021.129788] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 01/12/2021] [Accepted: 01/23/2021] [Indexed: 06/12/2023]
Abstract
Tetracycline (TC), a popularly found drug pollutant, can be contaminated in food and aquatic regions and causes a severe impact on human health. In this research, a visible light active p-stannic oxide/n-copper manganate (p-SnO2/n-CuMnO2) heterojunction was synthesized and has been applied for a signal on photoelectrochemical sensing of antibiotic TC. Firstly, the n-SnO2 microrods were synthesized via a simple and efficient homogeneous precipitation method and the p-CuMnO2 nanoparticles were synthesized by a facile ultrasound-assisted hydrothermal method. The SnO2/CuMnO2 microrods p-n heterojunction was prepared through a simple impregnation method and physicochemical properties of the microrods are characterized by using X-ray diffraction (XRD), Raman, Brunauer-Emmett-Teller (BET), Fourier-transform infrared (FTIR), UV-Vis diffuse reflectance spectroscopy (UVDRS), X-ray photoelectron spectroscopy (XPS), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), and Mott-Schottky analyses. The photoelectrochemical sensing performance of SnO2/CuMnO2 microrods was 2.7 times higher than that of as-synthesized pure SnO2 microrods is due to the more visible light absorption ability and p-n heterojunction (synergy). The designed SnO2/CuMnO2/ITO sensor gives photocurrent signals for the detection of TC in the range of 0.01-1000 μM with the detection limit (LOD) of 5.6 nM. The practical applicability of the sensor was monitored in cow milk and the Taipei River water sample.
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Affiliation(s)
- Sethupathi Velmurugan
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei, Taiwan
| | - Liu Zhi-Xiang
- Precision and Materials Research Centre, National Taipei University of Technology, Taipei, Taiwan
| | - Thomas C-K Yang
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei, Taiwan; Precision and Materials Research Centre, National Taipei University of Technology, Taipei, Taiwan.
| | - Joon Ching Juan
- Nanotechnology and Catalysis Research Center (NANOCAT), University of Malaya, Kuala Lumpur-50603, Malaysia
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Yue J, Wen G, Ren G, Tang S, Ge B, Zhao L, Shao X. Superhydrophobic Self-Supporting BiOBr Aerogel for Wastewater Purification. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:406-416. [PMID: 33356320 DOI: 10.1021/acs.langmuir.0c03053] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
This research was focused on the raw material level construction of bismuth oxybromide (BiOBr) catalysis-loaded 3D cross-linked network polyurethane (PU) foam via the in situ polymerization method. After modification of superhydrophobic polydivinylbenzene nanoparticles, the PU foam possessed excellent superhydrophobic stability. The larger selective absorption oil phase capacity depended on its macroporous structure, and the existence of catalyst BiOBr (the band gap energy was about 2.57 eV) among the PU foam played a crucial role in degrading water-soluble contaminants under visible light irradiation. In this article, the photocatalytic experiment results verify that it has remarkable recycle degradation ability (the degradation efficiency can reach ∼97%) and the capture experiments indicate that the uppermost active species is h+.
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Affiliation(s)
- Jie Yue
- School of Materials Science and Engineering, Liaocheng University, Liaocheng 252000, China
| | - Guochang Wen
- School of Materials Science and Engineering, Liaocheng University, Liaocheng 252000, China
| | - Guina Ren
- School of Environmental and Material Engineering, Yantai University, Yantai 264405, China
| | - Shaowang Tang
- School of Materials Science and Engineering, Liaocheng University, Liaocheng 252000, China
| | - Bo Ge
- School of Materials Science and Engineering, Liaocheng University, Liaocheng 252000, China
| | - Limin Zhao
- School of Materials Science and Engineering, Liaocheng University, Liaocheng 252000, China
| | - Xin Shao
- School of Physics Science and Information Technology, Liaocheng University, Liaocheng 252000, China
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