A general strategy to enhance hydrogen peroxide generation via two-electron water oxidation by antimony modification for removal of triethyl phosphate and hexavalent chromium

Zhou，Quan1; Yan，Zaoxue2; Lan，Yangchun3; Ou，Zheshun1; Hu，Ruiting1; Wang，Xiaoli1; Yang，Zexi4; Chen，Yilin4; Cai，Jun Jie5; Lu，Qihong1; Wang，Shanquan1; Yu，Jimmy C.6; Li，Lejing7; Hu，Zhuofeng1

2024-03-01

10.1016/j.apcatb.2023.123427

Applied Catalysis B: Environmental   影响因子和分区

0926-3373

Two-electron water oxidation has attracted more and more attention for HO production. This strategy mainly uses water and does not require bubbling of oxygen gas, which can be widely used in oxygen-deficient environments. Currently, the most important research for two-electron water oxidation is the design of high-efficiency anode materials. Herein, a general method is developed to enhance the activity of two-electron water oxidation for HO production via SbO modification. This strategy is suitable for a series of electrodes, including carbon fiber paper, graphite plate, WO, CuWO and WO&CuWO composite. The mechanism for SbO modification toward enhanced HO generation is clearly demonstrated. It should be due to three factors: 1) enhance the reaction kinetic, 2) enlarge the specific surface area and 3) suppress HO decomposition. According to density function calculation, it is firstly found that the Sb optimizes the Gibbs free energy of adsorbed *OH intermediate of its nearby atom, making its adjacent atom (such as W) the active site. Finally, these Sb-modified electrodes are firstly used to produce HO for high-efficiency removal of triethyl phosphate, an environmental pollutant that are difficult to be degraded. It can also be used for the removal of hexavalent chromium, one kind of heavy metal.

CuWO4 Electrocatalysis Hexavalent chromium (VI) reduction Hydrogen peroxide Water oxidation

SCI

英语

其他

CHEMISTRY

2-s2.0-85175728764

Scopus

1.School of Environmental Science and Engineering,Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology,Sun Yat-sen University,Guangzhou,510006,China
2.School of Chemistry and Chemical Engineering,Jiangsu University,Zhenjiang,212013,China
3.School of Microelectronics,Southern University of Science and Technology,Shenzhen,518055,China
4.School of Pharmaceutical Sciences,Sun Yat-sen University,Guangzhou,510006,China
5.School of Materials and Energy,Guangdong University of Technology,Guangzhou,510006,China
6.Department of Chemistry,The Chinese University of Hong Kong,New Territories,Shatin,Hong Kong,China
7.Analytical Chemistry - Center for Electrochemical Sciences (CES),Faculty of Chemistry and Biochemistry,Ruhr University Bochum,Bochum,Universitätsstr. 150,D-44780,Germany

Zhou，Quan,Yan，Zaoxue,Lan，Yangchun,et al. A general strategy to enhance hydrogen peroxide generation via two-electron water oxidation by antimony modification for removal of triethyl phosphate and hexavalent chromium[J]. Applied Catalysis B: Environmental,2024,342.

Zhou，Quan.,Yan，Zaoxue.,Lan，Yangchun.,Ou，Zheshun.,Hu，Ruiting.,...&Hu，Zhuofeng.(2024).A general strategy to enhance hydrogen peroxide generation via two-electron water oxidation by antimony modification for removal of triethyl phosphate and hexavalent chromium.Applied Catalysis B: Environmental,342.

Zhou，Quan,et al."A general strategy to enhance hydrogen peroxide generation via two-electron water oxidation by antimony modification for removal of triethyl phosphate and hexavalent chromium".Applied Catalysis B: Environmental 342(2024).