环境工程学报2024，Vol.18Issue(4)：1161-1171,11.DOI:10.12030/j.cjee.202312066
废弃聚氯乙烯塑料衍生的氮掺杂碳纳米片活化过一硫酸盐去除水中四环素
Nitrogen doped carbon nanosheet derived from waste PVC plastic activated peroxymonosulfate for tetracycline removal
摘要
Abstract
In this work,nitrogen doped carbon nanosheet catalyst was synthesized via a thermal treatment method by employing waste polyvinyl chloride(PVC)plastic as carbon source and melamine as nitrogen source.The performance of tetracycline(TC)removal from water by the catalyst activated peroxymonosulfate(PMS)was evaluated.The effects of the operational parameters including PMS concentration,catalyst dosage,pH and different inorganic ions on TC degradation were studied.The results of various characterizations revealed that the prepared catalyst had a thin nanosheet structure and consisted of carbon,nitrogen and oxygen elements.Moreover,the catalyst displayed an excellent PMS activation ability for TC degradation.The optimum TC removal happened at the catalyst dosage of 0.1 g·L-1 and PMS content of 1 mmol·L-1,98％of TC could be removed after 30 min reaction.As confirmed by results of the radical trapping experiments and EPR tests,the formed singlet oxygen and superoxide radicals played a vital role during TC degradation by catalyst/PMS.The result of cycling tests revealed that the catalyst had a relatively robust stability.This work paves the way for the rational design of a novel carbon-based catalytic system with high-efficiency PMS activation and application in the field of environmental pollution control.关键词
过一硫酸盐/氮改性碳/聚氯乙烯/四环素Key words
peroxymonosulfate/nitrogen doped carbon/PVC/tetracycline分类
资源环境引用本文复制引用
龚焱,汤琪,白纯,曹鹤龄,廉菲,王骏,赵旭..废弃聚氯乙烯塑料衍生的氮掺杂碳纳米片活化过一硫酸盐去除水中四环素[J].环境工程学报,2024,18(4):1161-1171,11.基金项目
工业生态与环境工程教育部重点实验室开放基金项目(KLIEEE-21-04) （KLIEEE-21-04）
环境友好能源材料国家重点实验室开放基金项目(22kfhg06) （22kfhg06）
