Inner Mongolia Key Laboratory of Chemistry and Physics of Rare Earth Materials, School of Chemistry and Chemical Engineering, Inner Mongolia University, 010021, Hohhot, China.
Photochem Photobiol Sci. 2020 Aug 1;19(8):1042-1053. doi: 10.1039/d0pp00056f. Epub 2020 Jul 1.
This work reports on the simple fabrication of a silver loaded and carbon doped zinc tantalate (Ag/C-ZnTaO) photocatalyst with visible light photocatalytic activity toward broad wastewater remediation, including high photo-reduction of Cr(vi) (98.4% in 210 min), excellent photo-oxidation of tetracycline hydrochloride (94.7% in 210 min), and superior photo-degradation of multiple dyes (>99.0% within 210 min). The optimal photocatalytic performance of Ag/C-ZnTaO is mainly due to the excellent visible light absorption capacity and superior electron-hole separation efficiency, which is ascribed to the complementary behavior between carbon doping and silver loading. Particularly, the generation of defects due to C-doping is greatly inhibited by Ag-loading, and the SPR effect of Ag nanoparticles is enhanced due to the obstruction of Ag by C doping.
这项工作报道了一种简单的制备方法，即用银负载和碳掺杂的锌钽酸盐（Ag/C-ZnTaO）作为光催化剂，具有可见光光催化活性，可广泛用于废水修复，包括高效还原六价铬（98.4%，210 分钟内），高效氧化盐酸四环素（94.7%，210 分钟内），以及高效降解多种染料（210 分钟内>99.0%）。Ag/C-ZnTaO 的最佳光催化性能主要归因于其优异的可见光吸收能力和卓越的电子-空穴分离效率，这归因于碳掺杂和银负载之间的互补作用。特别是，由于 C 掺杂导致的缺陷生成被 Ag 负载大大抑制，而 Ag 纳米粒子的 SPR 效应则由于 C 掺杂对 Ag 的阻碍而增强。
