Photoanodic H2O2 synthesis and in-situ tetracycline degradation using transition-metal phosphide co-catalysts

被引：30

作者：

Xu, Yuntao ^{[1
]}

Pan, Yongxin ^{[1
]}

Yahan, Wu ^{[1
]}

Fang, Yuanxing ^{[1
]}

Anpo, Masakazu ^{[1
]}

Yoshida, Hisao ^{[3
,4
]}

Wang, Xinchen ^{[1
,2
]}

机构：

[1] Fuzhou Univ, Coll Chem, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350116, Peoples R China

[2] Fujian Sci & Technol Innovat Lab Chem Engn China, Quanzhou 362114, Peoples R China

[3] Kyoto Univ, Elements Strategy Initiat Catalysts & Batteries ES, Kyoto 6158245, Japan

[4] Kyoto Univ, Dept Interdisciplinary Environm, Grad Sch Human & Environm Studies, Kyoto 6068501, Japan

来源：

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY | 2023年 / 331卷

基金：

中国国家自然科学基金;

关键词：

Hydrogen Peroxide; Transition metal phosphide; Photoanode; Water Disinfectant; BiVO4; EFFICIENT; OXIDATION; CATALYSTS; BIVO4;

D O I：

10.1016/j.apcatb.2023.122701

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

H2O2 as an essential chemical can be produced by photoanodic water oxidation reaction but is restricted by low production rate and poor selectivity. Herein, three kinds of transition metal phosphide, namely Fe2P, Co2P, and Ni5P4, have been loaded on Mo doped BiVO4 (MB) photoanodes to promote H2O2 production. Among them, the optimal performance has been achieved by Ni5P4/MB photoanode with the yield of 20.8 & mu;mol h-1 cm-2 and the selectivity of 41.9 % at the applied voltage of 1.7 V (vs. RHE) under AM 1.5 G illumination. By loading Ni5P4 on MB, the production rate of OH & BULL; radicals and the desorption of the as-formed H2O2 have been promoted. The intermediates, OH & BULL; radicals, have been in-situ applied for tetracycline degradation, and Ni5P4/MB photoanode presents the best performance. This work has demonstrated the developments of metal phosphide as co-catalysts for photoanodic H2O2 production from water and meanwhile paved the pathway for its in-situ use in water disinfectant.

引用

页数：9

共 50 条

[1] Aqueous Au-Pd colloids catalyze selective CH4 oxidation to CH3OH with O2 under mild conditions [J].