化工环保2024，Vol.44Issue(2)：188-195,8.DOI:10.3969/j.issn.1006-1878.2024.02.005
生物炭负载FeOOH活化过硫酸盐降解水中盐酸金霉素
Degradation of chlortetracycline hydrochloride in water using persulfate activated by FeOOH-loaded biochar
摘要
Abstract
The cocoanut shell biochar(CBC)was prepared by anaerobic calcination using discarded coconut shells and loaded with FeOOH to obtain a new composite material FeOOH/CBC,which was used to activate persulfate(PS)to degrade chlortetracycline hydrochloride(CTC)in water.The characterization results show that FeOOH/CBC has a rough surface with a large number of activation sites and is rich in oxygen-containing functional groups.The experimental results show that:Under the optimal conditions of mass ratio of FeOOH to CBC 1∶2,initial CTC concentration 200 mg/L,solution pH 3,FeOOH/CBC amount 1.0 g/L,PS amount 1.0 mmol/L and reaction time 90 min,the CTC removal rate can reach 97.7%;H2PO4-,HCO3-and Cl-with high concentration have a certain inhibitory effect on the degradation of CTC,while CO32-with a concentration over 10 mmol/L has a strong inhibitory effect.The mechanism analysis show that SO4-·is the main free radical for CTC removal,and·OH and O2-·also play a certain role in the removal of CTC.关键词
生物炭/FeOOH/过硫酸盐/盐酸金霉素Key words
biochar/FeOOH/persulfate/chlortetracycline hydrochloride分类
资源环境引用本文复制引用
苏久阳,王泽南,张晟,周飞艳..生物炭负载FeOOH活化过硫酸盐降解水中盐酸金霉素[J].化工环保,2024,44(2):188-195,8.基金项目
江苏省研究生科研与实践创新计划项目(SJCX23-1556,SJCX23-1561). （SJCX23-1556,SJCX23-1561）
