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Wu B, Wang C, Wang Z, Shen K, Wang K, Li G. Coupling Z-Scheme g-C 3N 4/rGO/MoS 2 Ternary Heterojunction as an Efficient Visible Light Photocatalyst for Hydrogen Evolution and RhB Degradation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:1931-1940. [PMID: 38214273 DOI: 10.1021/acs.langmuir.3c03685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2024]
Abstract
Coupling heterostructures to synergistically improve the light adsorption and promote the charge carrier separation has been regarded as an operative approach to advance the photocatalytic performances. However, it is still challenging to construct heterostructures with appropriate optical properties and interfacial energy structures at the same time. In this work, a Z-scheme g-C3N4/rGO/MoS2 ternary composite photocatalyst is successfully synthesized via an effective hydrothermal method. The as-synthesized g-C3N4/rGO/MoS2 composite photocatalyst exhibited significant improvement for visible light absorption and boosted the separation efficiency of photoinduced electron-hole pairs. The g-C3N4/rGO/MoS2 system exhibited optimum visible-light-induced photocatalytic activity in hydrogen (H2) from water splitting and degrading pollutant rhodamin B (RhB), which is 22 times and 5 times higher than that of pure g-C3N4, respectively. The excellent photocatalytic activities are attributed to the synergetic effects of coupling rGO, g-C3N4, and MoS2 ternary structures to the composite photocatalyst. These combinations of intimate two-dimensional nanoconjugations can effectively inhibit charge recombination and accelerate charge transfer kinetics, forming a Z-scheme-assisted photocatalytic mechanism, thereby exhibiting superior photocatalytic activity.
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Affiliation(s)
- Bo Wu
- Institute of Energy Innovation, Taiyuan University of Technology, Taiyuan 030024, China
| | - Congwei Wang
- CAS Key Laboratory of Carbon Materials, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
| | - Zheyan Wang
- Institute of Energy Innovation, Taiyuan University of Technology, Taiyuan 030024, China
| | - Kai Shen
- Institute of Energy Innovation, Taiyuan University of Technology, Taiyuan 030024, China
| | - Kaiying Wang
- Institute of Energy Innovation, Taiyuan University of Technology, Taiyuan 030024, China
- Department of Microsystems, University of South-Eastern Norway, Horten, 3184, Norway
| | - Gang Li
- Institute of Energy Innovation, Taiyuan University of Technology, Taiyuan 030024, China
- College of Physics and Information Engineering, Minnan Normal University, Zhangzhou 361000, China
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Khan J, Sun Y, Han L. A Comprehensive Review on Graphitic Carbon Nitride for Carbon Dioxide Photoreduction. SMALL METHODS 2022; 6:e2201013. [PMID: 36336653 DOI: 10.1002/smtd.202201013] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 09/10/2022] [Indexed: 06/16/2023]
Abstract
Inspired by natural photosynthesis, harnessing the wide range of natural solar energy and utilizing appropriate semiconductor-based catalysts to convert carbon dioxide into beneficial energy species, for example, CO, CH4 , HCOOH, and CH3 COH have been shown to be a sustainable and more environmentally friendly approach. Graphitic carbon nitride (g-C3 N4 ) has been regarded as a highly effective photocatalyst for the CO2 reduction reaction, owing to its cost-effectiveness, high thermal and chemical stability, visible light absorption capability, and low toxicity. However, weaker electrical conductivity, fast recombination rate, smaller visible light absorption window, and reduced surface area make this catalytic material unsuitable for commercial photocatalytic applications. Therefore, certain procedures, including elemental doping, structural modulation, functional group adjustment of g-C3 N4 , the addition of metal complex motif, and others, may be used to improve its photocatalytic activity towards effective CO2 reduction. This review has investigated the scientific community's perspectives on synthetic pathways and material optimization approaches used to increase the selectivity and efficiency of the g-C3 N4 -based hybrid structures, as well as their benefits and drawbacks on photocatalytic CO2 reduction. Finally, the review concludes a comparative discussion and presents a promising picture of the future scope of the improvements.
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Affiliation(s)
- Javid Khan
- College of Materials Science and Engineering, Hunan Joint International Laboratory of Adv. Mater. and Technology for Clean Energy, Hunan University, Changsha, 410082, China
| | - Yanyan Sun
- School of Materials Science and Engineering, Central South University, Changsha, Hunan, 410083, China
| | - Lei Han
- College of Materials Science and Engineering, Hunan Joint International Laboratory of Adv. Mater. and Technology for Clean Energy, Hunan University, Changsha, 410082, China
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Peng Q, Dai Y, Liu K, Tang X, Zhou M, Zhang Y, Xing J. Outstanding catalytic performance of metal-free peroxymonosulfate activator: Important role of chrysotile. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120526] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Dong J, Zhang Y, Hussain MI, Zhou W, Chen Y, Wang LN. g-C 3N 4: Properties, Pore Modifications, and Photocatalytic Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 12:121. [PMID: 35010072 PMCID: PMC8746910 DOI: 10.3390/nano12010121] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 12/23/2021] [Accepted: 12/24/2021] [Indexed: 11/17/2022]
Abstract
Graphitic carbon nitride (g-C3N4), as a polymeric semiconductor, is promising for ecological and economical photocatalytic applications because of its suitable electronic structures, together with the low cost, facile preparation, and metal-free feature. By modifying porous g-C3N4, its photoelectric behaviors could be facilitated with transport channels for photogenerated carriers, reactive substances, and abundant active sites for redox reactions, thus further improving photocatalytic performance. There are three types of methods to modify the pore structure of g-C3N4: hard-template method, soft-template method, and template-free method. Among them, the hard-template method may produce uniform and tunable pores, but requires toxic and environmentally hazardous chemicals to remove the template. In comparison, the soft templates could be removed at high temperatures during the preparation process without any additional steps. However, the soft-template method cannot strictly control the size and morphology of the pores, so prepared samples are not as orderly as the hard-template method. The template-free method does not involve any template, and the pore structure can be formed by designing precursors and exfoliation from bulk g-C3N4 (BCN). Without template support, there was no significant improvement in specific surface area (SSA). In this review, we first demonstrate the impact of pore structure on photoelectric performance. We then discuss pore modification methods, emphasizing comparison of their advantages and disadvantages. Each method's changing trend and development direction is also summarized in combination with the commonly used functional modification methods. Furthermore, we introduce the application prospects of porous g-C3N4 in the subsequent studies. Overall, porous g-C3N4 as an excellent photocatalyst has a huge development space in photocatalysis in the future.
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Affiliation(s)
- Jiaqi Dong
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China; (J.D.); (M.I.H.)
| | - Yue Zhang
- Shunde Graduate School, University of Science and Technology Beijing, Foshan 528399, China; (Y.Z.); (W.Z.)
| | - Muhammad Irfan Hussain
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China; (J.D.); (M.I.H.)
| | - Wenjie Zhou
- Shunde Graduate School, University of Science and Technology Beijing, Foshan 528399, China; (Y.Z.); (W.Z.)
| | - Yingzhi Chen
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China; (J.D.); (M.I.H.)
- Shunde Graduate School, University of Science and Technology Beijing, Foshan 528399, China; (Y.Z.); (W.Z.)
| | - Lu-Ning Wang
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China; (J.D.); (M.I.H.)
- Shunde Graduate School, University of Science and Technology Beijing, Foshan 528399, China; (Y.Z.); (W.Z.)
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Tang B, Yang Z, Song Z, Shi G, Fu D, Sun X, Zou J, Qi H. Self-built field induces surface electrons to reduce H+ to atomic H* for photocatalytic hydrodechlorination of 2-chlorophenols. CHEMICAL ENGINEERING JOURNAL ADVANCES 2021. [DOI: 10.1016/j.ceja.2021.100194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Preparation, Characterization of Graphitic Carbon Nitride Photo-Catalytic Nanocomposites and Their Application in Wastewater Remediation: A Review. CRYSTALS 2021. [DOI: 10.3390/cryst11070723] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Energy crisis and environmental pollution are the major problems of human survival and development. Photocatalytic technology can effectively use solar energy and is prospective to solve the above-mentioned problems. Carbon nitride is a two-dimensional polymer material with a graphite-like structure. It has good physical and chemical stabilities, unique chemical and electronic energy band structures, and is widely used in the field of photocatalysis. Graphitic carbon nitride has a conjugated large π bond structure, which is easier to be modified with other compounds. thereby the surface area and visible light absorption range of carbon nitride-based photocatalytic composites can be insignificantly increased, and interface electron transmission and corresponding photogenerated carriers separation of streams are simultaneously promoted. Therefore, the present study systematically introduced the basic catalytic principles, preparation and modification methods, characterization and calculation simulation of carbon nitride-based photocatalytic composite materials, and their application in wastewater treatment. We also summarized their application in wastewater treatment with the aid of artificial intelligence tools. This review summarized the frontier technology and future development prospects of graphite phase carbon nitride photocatalytic composites, which provide a theoretical reference for wastewater purification.
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Zhang M, Qin L, Feng X, Kang SZ, Li X. Facile construction of carbon nitride/cobalt ion/eosin Y nanohybrids for enhanced interaction and photocatalytic hydrogen production. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.126123] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Hong LF, Guo RT, Yuan Y, Ji XY, Lin ZD, Li ZS, Pan WG. Recent Progress of Transition Metal Phosphides for Photocatalytic Hydrogen Evolution. CHEMSUSCHEM 2021; 14:539-557. [PMID: 33216454 DOI: 10.1002/cssc.202002454] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 11/20/2020] [Indexed: 06/11/2023]
Abstract
Photocatalytic hydrogen evolution can effectively alleviate the troublesome global energy crisis by converting solar energy into the chemical energy of hydrogen. In order to realize efficient hydrogen generation, a variety of semiconductor materials have been extensively investigated, including TiO2 , CdS, g-C3 N4 , metal-organic frameworks (MOFs), and others. In recent years, to achieve higher photocatalytic performance and reach the level of large-scale industrial applications, photocatalysts decorated with transition metal phosphides (TMPs) have shone brightly because of their low cost, stable physical and chemical properties, and substitution for precious metals of TMPs. This Review highlights the preparation methods and properties associated with photocatalysis of TMPs. Moreover, the H2 generation efficiency of photocatalysts loaded with TMPs and the roles of TMPs in catalytic systems are also studied systematically. Apart from being co-catalysts, several TMPs can also serve as host catalysts to boost the activity of photocatalytic composites. Finally, the development prospects and challenges of TMPs are put forward, which is valuable for future researchers to expand the application of TMPs in photocatalytic directions and to develop more active photocatalytic systems.
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Affiliation(s)
- Long-Fei Hong
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, P. R. China
| | - Rui-Tang Guo
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, P. R. China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, P. R. China
- Shanghai Engineering Research Center of Power Generation Environment Protection, Shanghai, P. R. China
| | - Ye Yuan
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, P. R. China
| | - Xiang-Yin Ji
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, P. R. China
| | - Zhi-Dong Lin
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, P. R. China
| | - Zheng-Sheng Li
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, P. R. China
| | - Wei-Guo Pan
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, P. R. China
- Shanghai Engineering Research Center of Power Generation Environment Protection, Shanghai, P. R. China
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Enhanced corrosion resistance and adhesion of epoxy coating by two-dimensional graphite-like g-C3N4 nanosheets. J Colloid Interface Sci 2020; 579:152-161. [DOI: 10.1016/j.jcis.2020.06.027] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 06/01/2020] [Accepted: 06/06/2020] [Indexed: 12/30/2022]
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Meng F, Qin Y, Lu J, Lin X, Meng M, Sun G, Yan Y. Biomimetic design and synthesis of visible-light-driven g-C 3N 4 nanotube @polydopamine/NiCo-layered double hydroxides composite photocatalysts for improved photocatalytic hydrogen evolution activity. J Colloid Interface Sci 2020; 584:464-473. [PMID: 33096412 DOI: 10.1016/j.jcis.2020.10.007] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 09/23/2020] [Accepted: 10/04/2020] [Indexed: 02/06/2023]
Abstract
In the practical process of photocatalytic H2 evolution, optimizing the ability of light absorption and charge spatial separation is the top priority for improving the photocatalytic performance. In this study, we elaborately engineer neoteric g-C3N4 nanotube@polydopamine(pDA)/NiCo-LDH (LPC) composite photocatalyst by combining hydrothermal and calcination method. In the LPC composite system, the one-dimensional (1D) g-C3N4 nanotubes with larger specific surface area can afford more active sites and conduce to shorten the charge migration distance, as well as the high-speed mass transfer in the nanotube can accelerate the reaction course. The g-C3N4/NiCo-LDH type-II heterojunction can efficaciously stimulate the spatial separation of photo-produced charge. In addition, pDA as heterojunction metal-free interface mediums can provide multiple action (π-π* electron delocalization effect, adhesive action and photosensitization). The optimized LPC nanocomposite displays about 3.3-fold high photoactivity for H2 evolution compared with the g-C3N4 nanotube under solar light irradiation. In addition, the cycle experiment result shows that the LPC composite photocatalyst possesses superior stability and recyclability. The resultant g-C3N4@pDA/NiCo-LDH composite photocatalyst displays the potential practical application in the field of energy conversion.
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Affiliation(s)
- Fanying Meng
- College of Science, Beihua University, Jilin 132013, PR China; Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yingying Qin
- Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang 212013, PR China
| | - Jian Lu
- Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Xinyu Lin
- Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang 212013, PR China
| | - Minjia Meng
- Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Gang Sun
- College of Science, Beihua University, Jilin 132013, PR China.
| | - Yongsheng Yan
- Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China.
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