Jingjing Zhang , Quanquan Shi , Qi Xiong , Guichen Ping , Qingyi Qian , Xiaolin Yan
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引用次数: 0
Abstract
Developing advanced photocatalysts for antibiotics degradation is utmost importance in wastewater purification. Herein, we designed to a unique 1D/2D TiO2/Bi2O2CO3 (TBC) S-scheme heterojunction photocatalysts via a facile hydrothermal method, in which K2Ti8O17-T nanowires are in situ transform into TiO2 nanorod and then loaded on surface of Bi2O2CO3 nanosheets. As-prepared TBC composites exhibited obviously enhanced photocatalytic removal activity for tetracycline (TC) degradation under visible-light irradiation, and the degradation efficiency achieved 86% after 60 min, which is significantly higher than pristine samples. This is because that the construction of 1D/2D heterojunction interface efficiently endowed the abundant surface oxygen vacancies and further boosted the separation and transfer of photoexcited carriers. Additionally, TBC composites maintained superior removal efficiency with continuous operation (600 min) in membrane reactor. The degradation pathway and toxicity estimation were also further investigated. In all, this work reported an integrated construction for 1D/2D S-scheme photocatalysts with efficient photocatalytic membrane removal for water purification.
期刊介绍:
Sustainable Materials and Technologies (SM&T), an international, cross-disciplinary, fully open access journal published by Elsevier, focuses on original full-length research articles and reviews. It covers applied or fundamental science of nano-, micro-, meso-, and macro-scale aspects of materials and technologies for sustainable development. SM&T gives special attention to contributions that bridge the knowledge gap between materials and system designs.