MXene-Ti3C2 assisted one-step synthesis of carbon-supported TiO2/Bi4NbO8Cl heterostructures for enhanced photocatalytic water decontamination
Author:
Jiang Daixun1, Sun Xun1, Wu Xilu1, Zhang Shuai1, Qu Xiaofei1, Shi Liang1ORCID, Zhang Yelong2, Du Fanglin1
Affiliation:
1. College of Materials Science and Engineering , Qingdao University of Science and Technology , Zhengzhou Road 53 , Qingdao , 266042 , Shandong Province , PR China 2. School of Applied Physics and Materials , Wuyi University , 22 Dongcheng Village , Jiangmen , 529020 , Guangdong Province , PR China
Abstract
Abstract
The strategy to improve the photocatalytic removal efficiencies towards organic pollutants is still a challenge for the novel Sillen–Aurivillius perovskite type Bi4NbO8Cl. Herein, we report carbon-supported TiO2/Bi4NbO8Cl (C-TiO2/Bi4NbO8Cl) heterostructures with enhanced charge separation efficiency, which were fabricated via molten-salt flux process. The carbon-supported TiO2 particles were derived from MXene Ti3C2 precursors, and attached on plate-like Bi4NbO8Cl, acting as electron-traps to achieve supressed recombination of photo-induced charges. The improved charge separation confers C-TiO2/Bi4NbO8Cl heterostructures superior photocatalytic performance with 53% higher than pristine Bi4NbO8Cl, towards rhodamine B removal with the help of photo-induced holes. Moreover, the C-TiO2/Bi4NbO8Cl heterostructures can be expanded to deal with other water contaminants, such as methyl orange, ciprofloxacin and 2,4-dichlorophenol with 44, 25 and 13% promotion, respectively, and thus the study offers a series of efficient photocatalysts for water purification.
Funder
A project of Shandong Province Higher Educational Science and Technology Program Shandong Provincial Key Research and Development Program the Science Foundation for High-level Talents of Wuyi University
Publisher
Walter de Gruyter GmbH
Subject
Electrical and Electronic Engineering,Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials,Biotechnology
Reference56 articles.
1. P. C. Nagajyothi, S. V. Prabhakar Vattikuti, K. C. Devarayapalli, K. Yoo, J. Shim, and T. V. M. Sreekanth, “Green synthesis: photocatalytic degradation of textile dyes using metal and metal oxide nanoparticles-latest trends and advancements,” Crit. Rev. Env. Sci. Tech., pp. 1–107, 2019, https://doi.org/10.1080/10643389.2019.1705103. 2. J. Brooks, C. Warkentin, D. Saha, E. Keller, and R. Frontiera, “ Toward a mechanistic understanding of plasmon-mediated photocatalysis,” Nanophotonics, vol. 7, pp. 1697–1724, 2018, https://doi.org/10.1515/nanoph-2018-0073. 3. S. Jorfi, S. Pourfadakari, and B. Kakavandi,“ A new approach in sono-photocatalytic degradation of recalcitrant textile wastewater using MgO@Zeolite nanostructure under UVA irradiation,” Chem. Eng. J., vol. 343, pp. 95–107, 2018, https://doi.org/10.1016/j.cej.2018.02.067. 4. L. Suhadolnik, A. Pohar, U. Novak, B. Likozar, A. Mihelič, and M. Čeh,“ Continuous photocatalytic, electrocatalytic and photo-electrocatalytic degradation of a reactive textile dye for wastewater-treatment processes: batch, microreactor and scaled-up operation,” J. Ind. Eng. Chem., vol. 72, pp. 178–188, 2019, https://doi.org/10.1016/j.jiec.2018.12.017. 5. A. Naldoni, F. Riboni, U. Guler, A. Boltasseva, V. M. Shalaev, and A. V. Kildishev,“ Solar-powered plasmon-enhanced heterogeneous catalysis,” Nanophotonics, vol. 5, pp. 112–33, 2016, https://doi.org/10.1515/nanoph-2016-0018.
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