碳化
煅烧
催化作用
激进的
钴
化学
电子顺磁共振
碳纤维
热解
降级(电信)
化学工程
热处理
无机化学
核化学
材料科学
有机化学
吸附
复合材料
复合数
电信
物理
核磁共振
计算机科学
工程类
作者
Wenjia Mao,Dongsheng Wang,Xinting Wang,Xiaoli Hu,Feng‐Wei Gao,Zhong‐Min Su
标识
DOI:10.1016/j.colsurfa.2022.129234
摘要
A magnetic carbon material [email protected] was fabricated by the in situ thermal conversion of a precursor metal organic frameworks (CUST-563) with structure for peroxymonosulfate (PMS) activation. The composition of the material changes regularly by carbonizing the precursor at different temperatures. The Cobalt-based carbon materials with well dispersibility were obtained by carbonizing MOF, which avoided aggregation and exposed more active sites. The reaction parameters (catalyst content, PMS dosage, temperature, pH value, etc.) in the oxytetracycline (OTC) degradation process had been investigated. The degradation rate of OTC (20 mg/L) in 15 min reached more than 89%. According to the electron paramagnetic resonance (EPR) test results, the degradation process was carried out by the synergistic effect of two degradation mechanisms: free radicals (SO4·-,·OH) and non-radicals (1O2) process, and Co0 acts as the initiator of the free radical reaction. It proved that the synthesized efficient nanocarbon-based [email protected] was equipped with highly stability and reusability after 10 cycles experiments. This work studied the difference in the crystal at composition after calcining crystal at various temperatures and the mechanism of activation of PMS, which provided a design idea about the preparation of high-efficiency catalytic materials.
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