天津科技大学学报2025，Vol.40Issue(6)：53-59,7.DOI:10.13364/j.issn.1672-6510.20240070
改性生物炭负载纳米零价铁去除水中1,2-二氯乙烷
Removal of 1,2-Dichloroethane from Water Using Boric Acid-Modified Biochar-Supported Nanoscale Zero-Valent Iron
摘要
Abstract
As an organochlorine compound,1,2-dichloroethane(1,2-DCA)is potentially toxic and hazardous to the envir-onment.In order to remove 1,2-DCA more efficiently,in this study,boron doped modified biochar from acacia branches was used as a raw material to prepare boron doped modified biochar-loaded nano-zero-valent iron composites(BBC-nZVI).Scanning electron microscopy(SEM),X-ray diffraction(XRD),and infrared spectroscopy(FTIR)were used to characterize and analyze the BBC-nZVI to investigate its removal performance for 1,2-DCA.The results showed that the composites prepared with biochar at a pyrolysis temperature of 700℃showed the best removal of 1,2-DCA,and the removal rate could reach 63.74%;the removal rate of 1,2-DCA increased with the increase of the initial pH of the solution on the whole;in the SO42-and a high concentration of K+significantly inhibited the removal of 1,2-4coexisting ionic system,the addition of DCA,while the addition of HPO 2-and Mg2+could promote the removal of 1,2-DCA.关键词
硼酸改性/生物炭/纳米零价铁/1,2-二氯乙烷Key words
boric acid modified/biochar/nanoscale zero-valent iron/1,2-dichloroethane分类
资源环境引用本文复制引用
杨宗政,刘翙羽,唐立娜,吴志国..改性生物炭负载纳米零价铁去除水中1,2-二氯乙烷[J].天津科技大学学报,2025,40(6):53-59,7.基金项目
技术开发横向项目(2023120021000787) （2023120021000787）
