光催化
可见光谱
光降解
材料科学
兴奋剂
半导体
纳米技术
吸收(声学)
锐钛矿
化学工程
光化学
光电子学
催化作用
化学
复合材料
有机化学
工程类
作者
Xin Yu,Jielin Huang,Jiawei Zhao,Chao Zhou,Changhui Xin,Quanhui Guo
标识
DOI:10.1016/j.jenvman.2021.114289
摘要
Poriferous monocrystal-like nanostructures are contributing to fabricate long-distance charge transfer pathways and rapid diffusions of the degraded products, and attracts wide attentions. In this work, layered and poriferous (Al,C)-Ta2O5 mesocrystals were fabricated by topotactic transformation strategy with Ta4AlC3 MAX as starting materials for visible-light photocatalytic antibiotic degradation. The prepared sample exhibited enhanced visible-light absorption and visible-light photocatalytic performance, far superior to those of commercial Ta2O5 and Ta4AlC3 MAX, which was mainly because of the elemental doping in the samples. The experimental results also indicated that continuous attacks of the photo-generated holes and ·O2- species efficiently induced efficient visible-light photodegradation of tetracycline. Current work also indicates a new and potential tantalum-based semiconductors for high-performance environmental photocatalysis.
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