文献类型：期刊文献

英文题名：Fe0Ni0 bimetal co-immobilized horseradish peroxidase on ZIF-8@HMON for degradation of trichloroacetic acid

作者：Yang, Yuxiang[1];Huang, Xiaocui[1];Dong, Mengyang[1];Chang, Ziling[1];Yuan, Hongming[4];Huang, Yan[1];Liu, Xiangnong[5];Zhang, Jianbo[2];Dai, Anbang[3]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China;[2]Peking Univ, Coll Environm Sci & Engn, Beijing 100871, Peoples R China;[3]Nanjing Univ, Nanjing 210093, Peoples R China;[4]Jilin Univ, State Key Lab Inorgan Synth & Preparat Chem, Changchun 130012, Peoples R China;[5]Yangzhou Univ, Anal Test Ctr, Yangzhou 225009, Peoples R China

年份：2024

卷号：480

外文期刊名：CHEMICAL ENGINEERING JOURNAL

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001146166900001)】；

基金：This work was supported by the National Natural Science Foundation of China (20577010, 20971043) , and the Open Project Program of State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University.

语种：英文

外文关键词：Hollow mesoporous silicone nanoparticles; (HMONs); Horseradish peroxidase (HRP); TCA degradation; Advancedoxidation-reduction process (AORP); Zero-valent bimetal(Fe0Ni0)

摘要：As a common pollutant in the environment, trichloroacetic acid (TCA) is difficult to be completely degraded by common advanced oxidation processes (AOPs) due to its high C-Cl bond content. Advanced oxidation-reduction processes (AORPs) may improve the degradation performance of TCA. In this work, we use (FeNi0)-Ni-0 bimetal as reducing catalyst, hollow mesoporous silicone nanoparticles (HMONs) modified by ZIF-8 as immobilized carrier, horseradish peroxidase (HRP) and (FeNi0)-Ni-0 were fixed in the carrier to form a AORP system for degradation of TCA. The effects of temperature, pH, H2O2 concentration, doping ratio on the degradation performance of the catalyst and the degradation mechanism of the composite catalyst were investigated. Degradation experiments showed that H and OH were present in the dual system, dechlorination and decarboxylation exist at the same time. Under the condition of 55 degrees C and pH = 4, 30 mg (FeNi0)-Ni-0 and 20 mg immobilized enzyme shows the best degradation on TCA, and 81.48 % of 20 mgL-1 TCA could be degraded by 2 h.