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Hu X, Xu Y, Tang S, Shi W, Wang X, Yu YX, Zhang WD. Photoreduction of Aqueous Protons Coupling with Alcohol Oxidation on a S-Scheme Heterojunction Photocatalyst MnO/Carbon Nitride. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2306563. [PMID: 37929642 DOI: 10.1002/smll.202306563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 10/04/2023] [Indexed: 11/07/2023]
Abstract
Crystalline carbon nitride (CCN), derived from amorphous polymeric CN, is considered as a new generation of metal-free photocatalyst because of its high crystallinity. In order to further promote the photocatalytic performance of CCN, p-type MnO nanoparticles are in situ synthesized and merged with n-type CCN through a one-pot process to form p-n heterojunction. The formed interfacial electric field between the semiconductors with different work functions efficiently breaks the coulomb interaction between MnO and CCN. The prepared catalysts exhibit drastically increased photocatalytic hydrogen evolution (PHE) activity integrated with oxidation of alkyl and aryl alcohols under irradiation of visible light. In the aqueous solution of benzyl alcohol (BzOH), the hydrogen generation rate over MnO/CCN (39.58 µmol h-1) is nearly 7 times and 37 times that of pure CCN (5.76 µmol h-1) and CN (1.06 µmol h-1), respectively, combining with oxidation of BzOH to benzaldehyde. This work proposes an avenue for in situ construction of a novel 2D material-based S-scheme heterojunction and extends its application in solar energy conservation and utilization.
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Affiliation(s)
- Xuelian Hu
- School of Chemistry and Chemical Engineering, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, P. R. China
| | - Yangsen Xu
- Institute of Information Technology, Shenzhen Institute of Information Technology, Shenzhen, 518172, P. R. China
| | - Shuang Tang
- School of Chemistry and Chemical Engineering, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, P. R. China
| | - Wenwu Shi
- Institute of Information Technology, Shenzhen Institute of Information Technology, Shenzhen, 518172, P. R. China
| | - Xinzhong Wang
- Institute of Information Technology, Shenzhen Institute of Information Technology, Shenzhen, 518172, P. R. China
| | - Yu-Xiang Yu
- School of Chemistry and Chemical Engineering, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, P. R. China
| | - Wei-De Zhang
- School of Chemistry and Chemical Engineering, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, P. R. China
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Hayat A, Sohail M, Anwar U, Taha TA, Qazi HIA, Amina, Ajmal Z, Al-Sehemi AG, Algarni H, Al-Ghamdi AA, Amin MA, Palamanit A, Nawawi WI, Newair EF, Orooji Y. A Targeted Review of Current Progress, Challenges and Future Perspective of g-C 3 N 4 based Hybrid Photocatalyst Toward Multidimensional Applications. CHEM REC 2023; 23:e202200143. [PMID: 36285706 DOI: 10.1002/tcr.202200143] [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: 05/19/2022] [Revised: 09/12/2022] [Indexed: 01/21/2023]
Abstract
The increasing demand for searching highly efficient and robust technologies in the context of sustainable energy production totally rely onto the cost-effective energy efficient production technologies. Solar power technology in this regard will perceived to be extensively employed in a variety of ways in the future ahead, in terms of the combustion of petroleum-based pollutants, CO2 reduction, heterogeneous photocatalysis, as well as the formation of unlimited and sustainable hydrogen gas production. Semiconductor-based photocatalysis is regarded as potentially sustainable solution in this context. g-C3 N4 is classified as non-metallic semiconductor to overcome this energy demand and enviromental challenges, because of its superior electronic configuration, which has a median band energy of around 2.7 eV, strong photocatalytic stability, and higher light performance. The photocatalytic performance of g-C3 N4 is perceived to be inadequate, owing to its small surface area along with high rate of charge recombination. However, various synthetic strategies were applied in order to incorporate g-C3 N4 with different guest materials to increase photocatalytic performance. After these fabrication approaches, the photocatalytic activity was enhanced owing to generation of photoinduced electrons and holes, by improving light absorption ability, and boosting surface area, which provides more space for photocatalytic reaction. In this review, various metals, non-metals, metals oxide, sulfides, and ferrites have been integrated with g-C3 N4 to form mono, bimetallic, heterojunction, Z-scheme, and S-scheme-based materials for boosting performance. Also, different varieties of g-C3 N4 were utilized for different aspects of photocatalytic application i. e., water reduction, water oxidation, CO2 reduction, and photodegradation of dye pollutants, etc. As a consequence, we have assembled a summary of the latest g-C3 N4 based materials, their uses in solar energy adaption, and proper management of the environment. This research will further well explain the detail of the mechanism of all these photocatalytic processes for the next steps, as well as the age number of new insights in order to overcome the current challenges.
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Affiliation(s)
- Asif Hayat
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, 321004, Zhejiang, PR, China.,College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
| | - Muhammad Sohail
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou, 313001, P.R. China
| | - Usama Anwar
- Soochow Institute for Energy and Materials Innovations, College of Energy, Soochow University, Suzhou, 215006, China
| | - T A Taha
- Physics Department, College of Science, Jouf University, P.O. Box 2014, Sakaka, Saudi Arabia.,Physics and Engineering Mathematics Department, Faculty of Electronic Engineering, Menoufia University, Menouf, 32952, Egypt
| | - H I A Qazi
- College of Optoelectronic Engineering, Chongqing University of Posts and Telecommunications, Chongqing, 400065, China
| | - Amina
- Department of Physics, Bacha Khan University Charsadda, Pakistan
| | - Zeeshan Ajmal
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, 710072, Xian, PR China
| | - Abdullah G Al-Sehemi
- Research Center for Adv. Mater. Science (RCAMS), King Khalid University, P.O. Box 9004, Abha, 61413, Saudi Arabia.,Department of Chemistry, College of Science, King Khalid University, P.O. Box 9004, Abha, 61413, Saudi Arabia
| | - Hamed Algarni
- Research Center for Adv. Mater. Science (RCAMS), King Khalid University, P.O. Box 9004, Abha, 61413, Saudi Arabia.,Department of Physics, Faculty of Science, King Khalid University, P.O. Box 9004, Abha, 61413, Saudi Arabia
| | - Ahmed A Al-Ghamdi
- Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Mohammed A Amin
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif, 21944, Saudi Arabia
| | - Arkom Palamanit
- Energy Technol. Program, Department of Specialized Engineering, Faculty of Engineering, Prince of Songkla University, 15 Karnjanavanich Rd., Hat Yai, Songkhla 90110, Thailand
| | - W I Nawawi
- Faculty of Applied Sciences, Universiti Teknologi MARA, Cawangan Perlis, 02600, Arau Perlis, Malaysia
| | - Emad F Newair
- Chemistry Department, Faculty of Science, Sohag University, Sohag, 82524, Egypt
| | - Yasin Orooji
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
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Zhang G, Xu Y, Rauf M, Zhu J, Li Y, He C, Ren X, Zhang P, Mi H. Breaking the Limitation of Elevated Coulomb Interaction in Crystalline Carbon Nitride for Visible and Near-Infrared Light Photoactivity. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2201677. [PMID: 35652268 PMCID: PMC9313543 DOI: 10.1002/advs.202201677] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 05/08/2022] [Indexed: 06/15/2023]
Abstract
Most near-infrared (NIR) light-responsive photocatalysts inevitably suffer from low charge separation due to the elevated Coulomb interaction between electrons and holes. Here, an n-type doping strategy of alkaline earth metal ions is proposed in crystalline K+ implanted polymeric carbon nitride (KCN) for visible and NIR photoactivity. The n-type doping significantly increases the electron densities and activates the n→π* electron transitions, producing NIR light absorption. In addition, the more localized valence band (VB) and the regulation of carrier effective mass and band decomposed charge density, as well as the improved conductivity by 1-2 orders of magnitude facilitate the charge transfer and separation. The proposed n-type doping strategy improves the carrier mobility and conductivity, activates the n→π* electron transitions for NIR light absorption, and breaks the limitation of poor charge separation caused by the elevated Coulomb interaction.
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Affiliation(s)
- Guoqiang Zhang
- College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhenGuangdong518060P. R. China
| | - Yangsen Xu
- Institute of Information TechnologyShenzhen Institute of Information TechnologyShenzhenGuangdong518172P. R. China
| | - Muhammad Rauf
- College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhenGuangdong518060P. R. China
| | - Jinyu Zhu
- College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhenGuangdong518060P. R. China
| | - Yongliang Li
- College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhenGuangdong518060P. R. China
| | - Chuanxin He
- College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhenGuangdong518060P. R. China
| | - Xiangzhong Ren
- College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhenGuangdong518060P. R. China
| | - Peixin Zhang
- College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhenGuangdong518060P. R. China
| | - Hongwei Mi
- College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhenGuangdong518060P. R. China
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Zhang G, Zhu J, Xu Y, Yang C, He C, Zhang P, Li Y, Ren X, Mi H. In-Plane Charge Transport Dominates the Overall Charge Separation and Photocatalytic Activity in Crystalline Carbon Nitride. ACS Catal 2022. [DOI: 10.1021/acscatal.2c00233] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Guoqiang Zhang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518060, PR China
| | - Jinyu Zhu
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518060, PR China
| | - Yangsen Xu
- Institute of Information Technology, Shenzhen Institute of Information Technology, Shenzhen, Guangdong 518172, PR China
| | - Chen Yang
- School of Environmental Science and Engineering, Qingdao University, Qingdao 266071, China
| | - Chuanxin He
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518060, PR China
| | - Peixin Zhang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518060, PR China
| | - Yongliang Li
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518060, PR China
| | - Xiangzhong Ren
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518060, PR China
| | - Hongwei Mi
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518060, PR China
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