Complexes of cupric ion and tartaric acid enhanced calcium peroxide Fenton-like reaction for metronidazole degradation

作     者：Shiyu Pan Bo Cao Deling Yuan Tifeng Jiao Qingrui Zhang Shoufeng Tang Shiyu Pan;Bo Cao;Deling Yuan;Tifeng Jiao;Qingrui Zhang;Shoufeng Tang

作者机构：State Key Laboratory of Metastable Materials Science and TechnologyHebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource ReuseSchool of Environmental and Chemical EngineeringYanshan UniversityQinhuangdao 066004China 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2024年第35卷第7期

页      面：183-187页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070305[理学-高分子化学与物理] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

基　　金：the supports from the National Natural Science Foundation of China(No.51908485) the Central Guidance on Local Science and Technology Development Fund of Hebei Province(No.226Z3603G) Hebei Province Foundation for Returnees(No.C20210502) 

主　　题：Cupric ion Tartaric acid Complexation Calcium peroxide Metronidazole removal 

摘      要：To surmount the obstacles of traditional Fenton method and synchronously utilize Cu^(2+)and polyphenol in water,an improved Fenton-like reaction applying calcium peroxide(CaO_(2))as H_(2)O_(2)source and regulating by the complex of Cu^(2+)-tartaric acid(TA,a representative of polyphenol)was constructed.A typical antibiotic,metronidazole(MTZ)could be effectively eliminated by the Cu^(2+)/TA/CaO_(2)system,and the optimized parameters were as follows:0.1 mmol/L Cu^(2+),2 mmol/L TA,2 mmol/L CaO_(2),and initial *** spectrum confirmed the formation of Cu^(2+)-TA complex,which promoted the Cu^(2+)/Cu+circulation through decreasing the Cu^(2+)/Cu^(+) couple redox potential,which further enhanced the H_(2)O_(2)decomposition and the formation of reactive *** radical was dominant for MTZ degradation,followed by oxygen and superoxide *** degradation intermediates of MTZ were detected and their evolution way was ***,the ternary process showed a wide p H tolerance(3–8)for removing MTZ and broad applicability for eliminating other dyes and *** work provided a reference for Cu-based Fenton-like strategy for organic wastewater settlement.