摘要
以黄麻作为碳源,通过硝酸铁改性一步制备了Fe_(3)O_(4)生物质碳材料。利用SEM、XRD和SQUID技术手段对其进行测试,并研究磁性多孔炭对水中Cr(Ⅵ)的吸附性能。2 h内水中六价铬离子的去除率可达97%以上。黄麻廉价易得,磁性多孔碳制备方法简便,对Cr(Ⅵ)吸附效果良好,且有较高饱和磁化强度(41.00 emu/g),便于后续在外加磁场下分离以便重复利用和减少二次污染,吸附脱附后吸附率仍在90%以上。
The reuse of resources and renewable energy is the inevitable choice to solve the global resource shortage.Using chestnut shell as carbon source,biomass carbon material was prepared by one-step modification of biochar with ferric nitrate.The adsorption of Cr(VI)by magnetic porous carbon was studied by SEM,XRD and SQUID techniques.The removal rate of hexavalent chromium ion in water can reach more than 97%within_(2) hours.Because of the high saturation magnetization(41.00 emu/g),it is convenient to separate the magnetic carbon material for reuse,the adsorption rate is still above 90%after adsorption and desorption.
作者
王莉红
吕怡萍
邹浩波
郑良定
彭亦然
Wang Lihong;Lyu Yiping;Zou Haobo;Zheng Liangding;Peng Yiran(School of Materials and Energy,Yunnan University,Kunming 650091,China)
出处
《山东化工》
CAS
2023年第5期31-35,39,共6页
Shandong Chemical Industry
基金
云南省科技厅面上项目(202001BB050055)
云南大学国家级大学生创新创业训练项目(202110673067)。
关键词
黄麻
孔结构
磁性炭材料
六价铬
吸附
jute
pore structure
magnetic carbon material
Cr(Ⅵ)
adsorption
