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Gawal PM, Golder AK. Plant-Based Phytochemicals for Synthesis of Z-Scheme In 2O 3/CdS Heterostructures: DFT Analysis and Photocatalytic CO 2 Reduction to HCOOH and CO. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:13538-13549. [PMID: 38885968 DOI: 10.1021/acs.langmuir.4c01015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/20/2024]
Abstract
Photocatalytic CO2 reduction shows potential for mitigating industrial emissions. Z-scheme In2O3/CdS(bio) heterostructures (25 nm, 217.0 m2 g-1 surface area) with a more negative conduction band synthesized using phytochemicals present in Aegle marmelos with short microwave irradiation inhibit CdS(bio) photocorrosion forming SO42-. In2O3/CdS(bio) increased the photocurrent density (0.82 μA cm-2) and CO2 adsorption (0.431 mmol g-1) significantly compared to CdS(bio) and In2O3(bio) NPs. Heterostructures increased decay time and reduced PL intensity by 46.28 and 61.80% over those of CdS(bio) and In2O3(bio) NPs. Density functional theory (DFT)-optimized geometry, band structure analysis, and density of states (DOS) studies indicate that the DOS of CdS is modified with In2O3 incorporation, enhancing charge separation. Optimal 0.4In2O3/CdS(bio) heterostructures exhibit remarkable CO2 conversion to HCOOH/CO production of 514.4/162 μmol g-1 h-1 (AQY 4.44/2.45%), surpassing CdS(bio) and In2O3(bio) by 9 and 6.5 times, and retain their morphological and structural stability. This study provides valuable insight for developing bio-based CdS heterostructures for photocatalytic CO2 reduction.
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Affiliation(s)
- Pramod Madhukar Gawal
- Department of Chemical Engineering Indian Institute of Technology Guwahati, Assam 781039, India
| | - Animes Kumar Golder
- Department of Chemical Engineering Indian Institute of Technology Guwahati, Assam 781039, India
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2
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Wu X, Zhou J, Tan Q, Li K, Li Q, Correia Carabineiro SA, Lv K. Remarkable Enhancement of Photocatalytic Activity of High-Energy TiO 2 Nanocrystals for NO Oxidation through Surface Defluorination. ACS APPLIED MATERIALS & INTERFACES 2024; 16:11479-11488. [PMID: 38386611 DOI: 10.1021/acsami.3c16994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/24/2024]
Abstract
The superior photocatalytic activity of TiO2 nanocrystals with exposed high-energy (001) facets, achieved through the use of hydrofluoric acid as a shape-directing reagent, is widely reported. However, in this study, we report for the first time the detrimental effect of surface fluorination on the photoreactivity of high-energy faceted TiO2 nanocrystals towards NO oxidation (resulting in a NO removal rate of only 5.9%). This study aims to overcome this limitation by exploring surface defluorination as an effective strategy to enhance the photocatalytic oxidation of NO on TiO2 nanocrystals enclosed with (001) facets. We found that surface defluorination, achieved through either NaOH washing (resulting in an improved NO removal rate of 23.2%) or calcination (yielding an enhanced NO removal rate of 52%), leads to a large increase in the photocatalytic oxidation of NO on TiO2 nanocrystals with enclosed (001) facets. Defluorination processes stimulate charge separation, effectively retarding recombination and significantly promoting the production of reactive oxygen species, including superoxide radicals (·O2-), singlet oxygen (1O2), and hydroxyl radicals (·OH). Both in situ diffuse reflectance infrared Fourier-transform spectroscopy and density functional theory calculations confirm the higher adsorption of NO after defluorination, thus facilitating the oxidation of NO on TiO2 nanocrystals.
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Affiliation(s)
- Xiaofeng Wu
- Key Laboratory of Resources Conversion and Pollution Control of the State Ethnic Affairs Commission, College of Resources and Environment, South-Central Minzu University, Wuhan, Hubei Province 430074, China
- Surface Science Laboratory, Department of Materials and Earth Sciences, Technische Universitat Darmstadt, Otto-Berndt-Strasse 3, Darmstadt 64287, Germany
| | - Jie Zhou
- Key Laboratory of Resources Conversion and Pollution Control of the State Ethnic Affairs Commission, College of Resources and Environment, South-Central Minzu University, Wuhan, Hubei Province 430074, China
- Department of Urology, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan, Hubei 430061, China
| | - Qiuyan Tan
- Key Laboratory of Resources Conversion and Pollution Control of the State Ethnic Affairs Commission, College of Resources and Environment, South-Central Minzu University, Wuhan, Hubei Province 430074, China
| | - Kaining Li
- Key Laboratory of Resources Conversion and Pollution Control of the State Ethnic Affairs Commission, College of Resources and Environment, South-Central Minzu University, Wuhan, Hubei Province 430074, China
| | - Qin Li
- Key Laboratory of Resources Conversion and Pollution Control of the State Ethnic Affairs Commission, College of Resources and Environment, South-Central Minzu University, Wuhan, Hubei Province 430074, China
| | - Sónia A Correia Carabineiro
- LAQV-REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, Universidade NOVA de Lisboa, Caparica 2829-516, Portugal
| | - 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, Hubei Province 430074, China
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Song Y, Bao Z, Gu Y. Photocatalytic Enhancement Strategy with the Introduction of Metallic Bi: A Review on Bi/Semiconductor Photocatalysts. CHEM REC 2024; 24:e202300307. [PMID: 38084448 DOI: 10.1002/tcr.202300307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 11/17/2023] [Indexed: 03/10/2024]
Abstract
Semiconductor photocatalysis has great potential in the fields of solar fuel production and environmental remediation. Nevertheless, the photocatalytic efficiency still constrains its practical production applications. The development of new semiconductor materials is essential to enhance the solar energy conversion efficiency of photocatalytic systems. Recently, the research on enhancing the photocatalytic performance of semiconductors by introducing bismuth (Bi) has attracted widespread attention. In this review, we briefly overview the main synthesis methods of Bi/semiconductor photocatalysts and summarize the control of the micromorphology of Bi in Bi/semiconductors and the key role of Bi in the catalytic system. In addition, the promising applications of Bi/semiconductors in photocatalysis, such as pollutant degradation, sterilization, water separation, CO2 reduction, and N2 fixation, are outlined. Finally, an outlook on the challenges and future research directions of Bi/semiconductor photocatalysts is given. We aim to offer guidance for the rational design and synthesis of high-efficiency Bi/semiconductor photocatalysts for energy and environmental applications.
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Affiliation(s)
- Yankai Song
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Zongqi Bao
- Foreign Language Department, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Yingying Gu
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai, 200093, China
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Qi Z, Chen J, Li Q, Wang N, Carabineiro SAC, Lv K. Increasing the Photocatalytic Hydrogen Generation Activity of CdS Nanorods by Introducing Interfacial and Polarization Electric Fields. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2303318. [PMID: 37475483 DOI: 10.1002/smll.202303318] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 06/27/2023] [Indexed: 07/22/2023]
Abstract
Cadmium sulfide (CdS) is a photocatalyst widely used for efficient H2 production under visible light irradiation, due to its narrow bandgap and suitable conduction band position. However, the fast recombination of carriers results in their low utilization. In order to improve photocatalytic hydrogen production, it reports the successful introduction of metallic Cd and S vacancies on CdS nanorods (CdS NRs) by a facile in situ chemical reduction method, using a thermal treatment process. This procedure generates interfacial and polarization electric fields, that significantly improve the photocatalytic hydrogen production performance of CdS NRs in sodium sulfide and sodium sulfite aqueous solutions, under visible light irradiation (λ >420 nm). The introduction of these electric fields is believed to improve charge separation and facilitate faster interfacial charge migration, resulting in a significantly optimized catalyst, with a photocatalytic hydrogen evolution rate of up to 10.6 mmol-1 g-1 h-1 with apparent quantum efficiency (AQE) of 12.1% (420 nm), which is 8.5 times higher than that of CdS. This work provides a useful method to introduce metallic and S vacancies on metal sulfide photocatalysts to build local polarization and interfacial electric fields for high-performance photocatalytic H2 production.
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Affiliation(s)
- Zheng Qi
- College of Resources and Environment, South-Central Minzu University, Wuhan, 430074, P. R. China
| | - Jinbao Chen
- College of Resources and Environment, South-Central Minzu University, Wuhan, 430074, P. R. China
| | - Qin Li
- College of Resources and Environment, South-Central Minzu University, Wuhan, 430074, P. R. China
| | - Ning Wang
- Faculty of Environment and Life, Beijing University of Technology, Beijing, 100124, P. R. China
| | - Sónia A C Carabineiro
- Department of Chemistry, NOVA School of Science and Technology, Universidade NOVA de Lisboa, Caparica, 2829-516, Portugal
| | - Kangle Lv
- College of Resources and Environment, South-Central Minzu University, Wuhan, 430074, P. R. China
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Surface Acidification of BiOI/TiO2 Composite Enhanced Efficient Photocatalytic Degradation of Benzene. SEPARATIONS 2022. [DOI: 10.3390/separations9100315] [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
A novel BiOI/TiO2 nano-heterojunction was prepared using hydrothermal and sol-gel methods. The composite material was characterized by X-ray diffraction, ultraviolet-visible diffuse reflection spectroscopy, scanning electron microscopy, and transmission electron microscopy. The crystallinity and response to light of BiOI/TiO2 were controlled by preparation conditions such as the optimal solvent condition and heat treatment temperature. The photocatalytic activity of the BiOI/TiO2 catalyst was examined using benzene as a test molecule. The benzene degradation rate of the composite catalyst under visible light was enhanced compared to pure TiO2, thus reaching 40% of the original benzene concentration, which increased further to >60% after surface acidification. The fluorescence spectra, light current, and electron paramagnetic resonance confirmed that the enhanced activity was attributed to carrier separation by the heterojunction. The acid sites and active chlorine of hydrochloric acidification offer a novel mechanism for photocatalytic reactions.
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Recent Progress of Natural Mineral Materials in Environmental Remediation. Catalysts 2022. [DOI: 10.3390/catal12090996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Organic contaminants, volatile organic compounds (VOCs), and heavy metals have posed long-term threats to the ecosystem and human health. Natural minerals have aroused widespread interest in the field of environmental remediation due to their unique characteristics such as rich resources, environmentally benign, and excellent photoelectric properties. This review briefly introduced the contributions of natural minerals such as sulfide minerals, oxide minerals, and oxysalt minerals in pollution control, which include organic pollution degradation, sterilization, air purification (NO VOCs oxidation), and heavy metal treatment by means of photocatalysis, Fenton catalysis, persulfate activation, and adsorption process. At last, the future challenges of natural mineral materials in pollution control are also outlooked.
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Zhang S, Ou X, Xiang Q, Carabineiro SAC, Fan J, Lv K. Research progress in metal sulfides for photocatalysis: From activity to stability. CHEMOSPHERE 2022; 303:135085. [PMID: 35618060 DOI: 10.1016/j.chemosphere.2022.135085] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 05/15/2022] [Accepted: 05/20/2022] [Indexed: 06/15/2023]
Abstract
Metal sulfides are a type of reduction semiconductor photocatalysts with narrow bandgap and negative conduction band potential, which make them have unique photocatalytic performance in solar-to-fuel conversion and environmental purification. However, metal sulfides also suffer from low quantum efficiency and photocorrosion. In this review, the strategies to improve the photocatalytic activity of metal sulfide photocatalysts by stimulating the charge separation and improving light-harvesting ability are introduced, including morphology control, semiconductor coupling and surface modification. In addition, the recent research progress aiming at improving their photostability is also illustrated, such as, construction of hole transfer heterojunctions and deposition of hole transfer cocatalysts. Based on the electronic band structures, the applications of metal sulfides in photocatalysis, namely, hydrogen production, degradation of organic pollutants and reduction of CO2, are summarized. Finally, the perspectives of the promising future of metal-sulfide based photocatalysts and the challenges remaining to overcome are also presented.
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Affiliation(s)
- Sushu Zhang
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education, College of Resources and Environmental Science, South-Central Minzu University, Wuhan, 430074, PR China
| | - Xiaoyu Ou
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education, College of Resources and Environmental Science, South-Central Minzu University, Wuhan, 430074, PR China
| | - Qian Xiang
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education, College of Resources and Environmental Science, South-Central Minzu University, Wuhan, 430074, PR China
| | - Sónia A C Carabineiro
- LAQV-REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, Universidade NOVA de Lisboa, Caparica, 2829-516, Portugal.
| | - Jiajie Fan
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, PR China
| | - Kangle Lv
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education, College of Resources and Environmental Science, South-Central Minzu University, Wuhan, 430074, PR China.
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Facile synthesis of VS2/CdS/NaYF4: Yb, Er ternary heterojunctions for the visible-near-infrared-light driven photocatalysis. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Wan Y, Li J, Ni J, Wang C, Ni C, Chen H. Crystal-facet and microstructure engineering in ZnO for photocatalytic NO oxidation. JOURNAL OF HAZARDOUS MATERIALS 2022; 435:129073. [PMID: 35650731 DOI: 10.1016/j.jhazmat.2022.129073] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 04/22/2022] [Accepted: 05/02/2022] [Indexed: 06/15/2023]
Abstract
Photocatalysis is believed to be an important way of reducing NO pollutant in air and the facet engineering of semiconducting oxides could enhance the efficiency of the photocatalysis. ZnO nanoparticles with different exposed crystalline facets were successfully synthesized using a hydrothermal method and their photocatalytic degradation towards NO was investigated. The crystals from ZnCl2 precursor were hexagonal mesoporous ones with exposed (0002) facet, while those from zinc acetate were in the form of flakes or wheat ears with enhanced exposure of (101(-)1) facet. Calcination in air imparted an enhanced the textural coefficient of the orientated facets as well as the oxygen defects. The nanocrystals with enhanced (0002) facet and lower flat-band energy did better in photoelectrochemical water-oxidation than those with exposed (101(-)1) facet that showed superior photocatalytic activity (approaching 76.7 ± 0.6% under 365 nm photons) for NO oxidation. According to theoretical calculations, (101(-)1) facet with O termination showed much higher affinity to NO molecules than other configurations, and the oxygen vacancy in ZnO played an minor role in the photocatalytic oxidation of NO. A high quantum efficiency approaching 97.5 ± 1.4% under 275 nm photons was obtained for the ZnO crystals from zinc acetate with mixed (0002) and (101(-)1) facets. This research explores the special characteristics of ZnO with different exposed facets and is important for the future design of highly efficient photocatalyst for hazardous material removal.
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Affiliation(s)
- Yanshan Wan
- College of Resources and Environment, Southwest University, Chongqing 400715, China
| | - Jibiao Li
- Center for Materials and Energy (CME) and Chongqing Key Laboratory of Extraordinary Bond Engineering and Advanced Materials Technology (EBEAM), Yangtze Normal University, Chongqing 408100, China
| | - Jiupai Ni
- College of Resources and Environment, Southwest University, Chongqing 400715, China; National Base of International S&T Collaboration on Water Environmental Monitoring and Simulation in Three Gorges Reservoir Region, Chongqing 400716, China
| | - Chong Wang
- College of Resources and Environment, Southwest University, Chongqing 400715, China; National Base of International S&T Collaboration on Water Environmental Monitoring and Simulation in Three Gorges Reservoir Region, Chongqing 400716, China.
| | - Chengsheng Ni
- College of Resources and Environment, Southwest University, Chongqing 400715, China; National Base of International S&T Collaboration on Water Environmental Monitoring and Simulation in Three Gorges Reservoir Region, Chongqing 400716, China.
| | - Hong Chen
- College of Resources and Environment, Southwest University, Chongqing 400715, China.
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Tao S, Zhong W, Chen F, Wang P, Yu H. Dispersible CdS 1-xSe x solid-solution nanocrystal photocatalysts: Photoinduced self-transformation synthesis and enhanced hydrogen-evolution activity. J Colloid Interface Sci 2022; 627:320-331. [PMID: 35863191 DOI: 10.1016/j.jcis.2022.07.072] [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: 05/17/2022] [Revised: 06/28/2022] [Accepted: 07/12/2022] [Indexed: 10/17/2022]
Abstract
Modulating the electronic structure of Cadmium sulfide (CdS) by non-metallic elements to produce solid-solution photocatalysts serves as a potential route to improve its performance of photocatalytic hydrogen (H2) evolution. However, exploring an effective synthetic route of CdS-based solid solution is still a great challenge. Herein, the CdS1-xSex solid-solution nanocrystals were successfully synthesized by an accessible photoinduced self-transformation route, including the direct formation of dispersible CdS1-x(SeS)x and the in situ self-transformation of selenosulfide ((SeS)2-) to Se2- by photoexcited electrons. The prepared CdS1-xSex solid-solution photocatalysts possess a small crystallite size of ca. 5 nm and their bandgaps can be easily tuned in a wide range of 1.84-2.28 eV by tailoring the mole ratio of Se/S. The resultant CdS0.90Se0.10 solid-solution photocatalyst realizes the highest H2-production tempo of 94.6 μmol·h-1, which is 1.6 folds higher than that of CdS. The experimental and theoretical studies supported that the incorporation of Se atoms could not only narrow the bandgap value to reinforce visible-light absorption, but also tune its electronic structure to optimize interfacial H2-evolution dynamics, thus achieving an efficient photocatalytic H2-production rate of the dispersible CdS1-xSex solid solution. This study may deliver advanced inspirations for optimizing the electronic structure of photocatalysts towards sustainable H2 production.
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Affiliation(s)
- Siqin Tao
- School of Chemistry, Chemical Engineering and Life Sciences, and State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, PR China
| | - Wei Zhong
- School of Chemistry, Chemical Engineering and Life Sciences, and State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, PR China
| | - Feng Chen
- School of Chemistry, Chemical Engineering and Life Sciences, and State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, PR China
| | - Ping Wang
- School of Chemistry, Chemical Engineering and Life Sciences, and State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, PR China
| | - Huogen Yu
- School of Chemistry, Chemical Engineering and Life Sciences, and State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, PR China; Laboratory of Solar Fuel, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430070, PR China.
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11
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Yang Y, Wei C, Wang W, Noreldeen HAA, Huang Z, Deng H, Peng H, Xia X, Chen W. 6-Aza-2-thio-thymine-gold nanoclusters: an excellent candidate in the photoelectrochemical field. Chem Commun (Camb) 2022; 58:6219-6222. [PMID: 35510418 DOI: 10.1039/d2cc00291d] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The high performance of the photoelectrochemical (PEC) properties of AuNCs can be achieved with 6-aza-2-thio-thymine-AuNCs (ATT-AuNCs) as a photoactive material. The ATT-AuNCs yielded a cathodic photocurrent density as high as 88 μA cm-2 with O2 as electron acceptor, which is three orders of magnitude higher than those of other AuNCs in aqueous solutions. Moreover, ATT-AuNCs also show a higher carrier density, shorter Debye length, and smaller depletion layer width than those of reported AuNCs. This work not only reveals the PEC performance and mechanism of ATT-AuNCs, but also establishes a framework for in-depth design and studying the PEC performance of AuNCs.
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Affiliation(s)
- Yu Yang
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis, Faculty of Pharmacy, Fujian Medical University, Fuzhou 350004, China.
| | - Chaoguo Wei
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis, Faculty of Pharmacy, Fujian Medical University, Fuzhou 350004, China.
| | - Wenjun Wang
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis, Faculty of Pharmacy, Fujian Medical University, Fuzhou 350004, China.
| | - Hamada A A Noreldeen
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis, Faculty of Pharmacy, Fujian Medical University, Fuzhou 350004, China.
| | - Zhongnan Huang
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis, Faculty of Pharmacy, Fujian Medical University, Fuzhou 350004, China.
| | - Haohua Deng
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis, Faculty of Pharmacy, Fujian Medical University, Fuzhou 350004, China.
| | - Huaping Peng
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis, Faculty of Pharmacy, Fujian Medical University, Fuzhou 350004, China.
| | - Xinghua Xia
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Wei Chen
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis, Faculty of Pharmacy, Fujian Medical University, Fuzhou 350004, China.
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Wang T, Chang L, Wu H, Yang W, Cao J, Fan H, Wang J, Liu H, Hou Y, Jiang Y, Zhu H. Fabrication of three-dimensional hierarchical porous 2D/0D/2D g-C 3N 4 modified MXene-derived TiO 2@C: Synergy effect of photocatalysis and H 2O 2 oxidation in NO removal. J Colloid Interface Sci 2022; 612:434-444. [PMID: 34999548 DOI: 10.1016/j.jcis.2021.12.120] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 12/17/2021] [Accepted: 12/20/2021] [Indexed: 10/19/2022]
Abstract
A novel three-dimensional multi-level porous g-C3N4 modified MXene-derived TiO2@C aerogel (g-C3N4/TiO2@C aerogel) was synthesized for NO removal. Through SEM analysis, 2D g-C3N4 and 2D Ti3C2 nanosheets were constructed into an interconnected macroscopic framework with continuous macropores via ice template. OD TiO2 nanoparticles uniformly covered 2D C nanosheets with irregular mesopores and macropores in in-situ oxidation of Ti3C2 nanosheets by calcination via TEM analysis. g-C3N4/TiO2@C aerogel for photocatalytic activation of hydrogen peroxide (H2O2) had an excellent efficiency of 90.7% for NO removal at parts per million level. This efficiency was 4.9 times and 7.8 times that of g-C3N4/TiO2@C aerogel and H2O2 individually, due to the synergy between photocatalysis and H2O2 oxidation. Meantime, g-C3N4/TiO2@C aerogel exhibited an enhanced performance compared with g-C3N4 nanosheet (55.7%) and TiO2@C aerogel (38.5%). It was attributed to the large specific surface area (93.82 m2/g) with hierarchical mesoporous and macroporous structure and the 2D/OD/2D heterojunction of g-C3N4/TiO2@C aerogel, further enhancing electron-hole separation. The mechanism was hypothesized that g-C3N4/TiO2@C aerogel activated H2O2 to generate hydroxyl radicals (·OH) and superoxide radicals (·O2-) for oxidation of NO.
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Affiliation(s)
- Tong Wang
- Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Engineering Research Center of Fine Particles Pollution Control Technology and Equipment, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, PR China
| | - Lu Chang
- Gansu Environmental Monitoring Center, Lanzhou 730000, PR China
| | - Huan Wu
- Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Engineering Research Center of Fine Particles Pollution Control Technology and Equipment, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, PR China
| | - Wenhan Yang
- Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Engineering Research Center of Fine Particles Pollution Control Technology and Equipment, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, PR China
| | - Jinrong Cao
- Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Engineering Research Center of Fine Particles Pollution Control Technology and Equipment, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, PR China
| | - Hua Fan
- Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Engineering Research Center of Fine Particles Pollution Control Technology and Equipment, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, PR China
| | - Jingquan Wang
- Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Engineering Research Center of Fine Particles Pollution Control Technology and Equipment, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, PR China
| | - Haitao Liu
- Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Engineering Research Center of Fine Particles Pollution Control Technology and Equipment, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, PR China
| | - Yunhu Hou
- Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Engineering Research Center of Fine Particles Pollution Control Technology and Equipment, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, PR China
| | - Yunchao Jiang
- Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Engineering Research Center of Fine Particles Pollution Control Technology and Equipment, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, PR China.
| | - Hao Zhu
- Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Engineering Research Center of Fine Particles Pollution Control Technology and Equipment, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, PR China.
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Cui Y, Li Y, Liu Y, Shang D, Liu Y, Xie L, Zhan S, Hu W. High-efficiency photocatalytic degradation of rhodamine 6G by organic semiconductor tetrathiafulvalene in weak acid-base environment. Chem Commun (Camb) 2022; 58:4251-4254. [PMID: 35289822 DOI: 10.1039/d2cc01087a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Tetrathiafulvalene (TTF) was successfully applied to degrade rhodamine 6G (Rh6G) in photocatalytic system. The results exhibited that TTF had excellent suitability in the range of weak acid to weak base (pH = 5-9). Multiple reactive oxygen species (˙OH, 1O2, H2O2 and ˙O2-) as well as h+ and e- were generated in photocatalytic process, causing the rapid degradation of Rh6G. This study provides new ideas for the development of catalysts in photocatalytic system and the broader applications of organic semiconductor materials.
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Affiliation(s)
- Yukun Cui
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University & Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China.
| | - Yi Li
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University & Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China. .,Joint School of National University of Singapore and Tianjin University, Fuzhou International Campus, Tianjin University, Binhai New City, Fuzhou 350207, China
| | - Yaru Liu
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University & Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China.
| | - Denghui Shang
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University & Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China.
| | - Yu Liu
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University & Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China.
| | - Liangbo Xie
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University & Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China.
| | - Sihui Zhan
- College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China.
| | - Wenping Hu
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University & Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China. .,Joint School of National University of Singapore and Tianjin University, Fuzhou International Campus, Tianjin University, Binhai New City, Fuzhou 350207, China
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A novel S-scheme 3D ZnIn2S4/WO3 heterostructure for improved hydrogen production under visible light irradiation. CHINESE JOURNAL OF CATALYSIS 2022. [DOI: 10.1016/s1872-2067(22)64134-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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15
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Photocatalytic CO2 conversion of W18O49/CdSe-Diethylenetriamine with high charge transfer efficiency: Synergistic effect of LSPR effect and S-scheme heterojunction. CHINESE JOURNAL OF CATALYSIS 2022. [DOI: 10.1016/s1872-2067(21)64024-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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16
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Wang K, Tian J, Yu W, Lin L, Qi Z, Wang C. Preparation and characterization of a self-dispersed and reactive TiO 2/BiOBr photocatalyst for self-cleaning and ultraviolet resistant cotton fabrics. NEW J CHEM 2022. [DOI: 10.1039/d2nj03910a] [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
A novel and efficient approach is presented herein to develop self-cleaning and ultraviolet resistant cotton fabrics loaded with a self-dispersed and reactive TiO2/BiOBr photocatalyst.
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Affiliation(s)
- Kuang Wang
- College of Textile and Clothing, Yancheng Institute of Technology, Yancheng, 224051, Jiangsu Province, China
- School of Textile and Clothing, Nantong University, Nantong, 226019, Jiangsu Province, China
- Key Laboratory of Eco-textiles, Ministry of Education, Jiangnan University, Wuxi, 214122, Jiangsu Province, China
| | - Jialong Tian
- College of Textile and Clothing, Yancheng Institute of Technology, Yancheng, 224051, Jiangsu Province, China
| | - Wenhui Yu
- College of Textile and Clothing, Yancheng Institute of Technology, Yancheng, 224051, Jiangsu Province, China
- School of Textile and Clothing, Nantong University, Nantong, 226019, Jiangsu Province, China
| | - Ling Lin
- College of Textile and Clothing, Yancheng Institute of Technology, Yancheng, 224051, Jiangsu Province, China
| | - Zhenming Qi
- College of Textile and Clothing, Yancheng Institute of Technology, Yancheng, 224051, Jiangsu Province, China
| | - Chunxia Wang
- College of Textile and Clothing, Yancheng Institute of Technology, Yancheng, 224051, Jiangsu Province, China
- School of Textile and Clothing, Nantong University, Nantong, 226019, Jiangsu Province, China
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