降级(电信)
面(心理学)
催化作用
化学
抗生素
化学工程
计算机科学
心理学
工程类
有机化学
生物化学
社会心理学
电信
人格
五大性格特征
作者
Jiajia Luo,Jin Wang,Yifan Shao,Jialu Pan,Yudi Wang,Shuting Luan,Yanqing Cong,Songtao Lv
标识
DOI:10.1016/j.seppur.2024.128318
摘要
It was of great significance to improve the performance of catalysts in peroxymonosulfate (PMS) activation for water pollution control. Herein, Cu2O-based catalysts with different exposed facets were synthesized by a feasible method, and later employed for activating PMS to conduct the degradation tests of tetracycline (TC). With the increase of exposed (1 0 0) facet, the specific surface area of Cu2O was improved and the interface charge transfer resistance was reduced. More interestingly, benefiting from the exposure of (1 0 0) facet, the electron-donating ability of Cu2O was boosted, and the adsorption energy of PMS over Cu2O was also reduced, thereby creating favorable conditions for PMS activation. As guessed, Cu2O-1 with (1 0 0) facet can quickly activate PMS to achieve the effective degradation of TC, and the highest removal efficiency of TC over Cu2O-1 can be up to 97.56 % within 15 min. Furthermore, Cu2O-1 with good anti-interference showed satisfactory reusability, and the degradation intermediates of TC were the low toxic or nontoxic. In the Cu2O-1/PMS system, various reactive oxygen species were detected, including SO4•–, OH•, O2•– and 1O2, and wherein the contribution of 1O2 to TC degradation was the greatest. In short, current work shared some valuable insights into persulfate-based advanced oxidation processes.
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