Barium calcium titanate @carbon hybrid materials for high-efficiency room-temperature pyrocatalysis. Issue 8 (15th April 2022)

• Record Type: Journal Article
• Authors: Wang, Huiying; Jia, Yanmin; Xu, Taosheng; Shu, Xiaoxin; He, Yiming; Huang, Shihua; Yuan, Guoliang; Cui, Xiangzhi; Li, Guorong; Wu, Zheng
• Is Part Of: Ceramics international. Volume 48:Issue 8(2022)
• Page Start: 10498
• Page End: 10505
• Publication Date: 2022-04-15
• Subjects: Pyrocatalysis -- Dye decomposition -- Ba0.8Ca0.2TiO3@C hybrid nanofibers -- Pyroelectric materials; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2021.12.259
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: In this work, a significant enhancement of pyrocatalysis is found in barium calcium titanate @carbon (Ba0.8 Ca0.2 TiO3 @C) hybrid nanofibers hydrothermally synthesized and designed to decompose rhodamine B (RhB) dye. The pure Ba0.8 Ca0.2 TiO3 can decompose the RhB dye at 30–60 °C cold-hot cycles with a final decomposition ratio of 31.3%. As the content of C mixed in Ba0.8 Ca0.2 TiO3 gradually increases from 0 to 5 wt%, the decomposition ratio of RhB first increases and then decreases, with the highest decomposition ratio of 76.6%, when the content of C is 3 wt%. The enhancement of pyrocatalytic activity could be attributed to the fact that the presence of C accelerates the carrier mobility and impedes the free charges recombination in the pyrocatalysis process. With the enhanced pyrocatalytic performance, Ba0.8 Ca0.2 TiO3 @C hybrid nanofibers have tremendous potential for the alleviation of dye wastewater pollution through utilizing alternative cold-hot energy variation.