刚毛藻及其磁性水热炭对水中碘的吸附研究  

Study on Adsorption of Iodine in Aqueous Solution with Cladophora and Its Magnetic Hydrothermal Chars

作　　者：邵黎明 陈元涛 张炜 周昌友 王海洋 韩珊珊 肖榆 李川溪 SHAO Liming;CHEN Yuantao;ZHANG Wei;ZHOU Changyou;WANG Haiyang;HAN Shanshan;XIAO Yu;LI Chuanxi(School of Chemistry and Chemical Engineering,Qinghai Normal University,Xining 810016,China)

机构地区：[1]青海师范大学化学化工学院,青海西宁810016

出　　处：《环境科学与技术》2024年第4期34-43,共10页Environmental Science & Technology

基　　金：青海省科学技术厅重点研发与转化计划资助项目(2021-SF-139)。

摘　　要：有效捕获和回收放射性碘对核电站事故以及医疗产生的废水治理有重要意义。该文以刚毛藻为原料制备出刚毛藻磁性水热炭,采用傅里叶变换红外光谱仪(FI-IR)、X-射线粉末衍射仪(XRD)、场发射扫描电镜(SEM)对刚毛藻藻粉及刚毛藻磁性水热炭吸附碘前后结构和形貌进行表征,结果表明刚毛藻藻粉及其磁性水热炭对碘有较好的吸附效果,刚毛藻藻粉对碘的吸附量为593.82 mg/g,刚毛藻磁性水热炭吸附量为307.10 mg/g,制备出的刚毛藻磁性水热炭有良好的磁回收效果,该材料是从碘水中捕获碘的一种廉价、对环境友好的吸附剂。The effective capture and recycling of radioactive iodine is of great significance for the treatment of wastewater from nuclear power plant accidents and medical facilities.In this study,a green adsorbent material,i.e.,magnetic Cladophora hydrothermal chars were successfully prepared with the biomass of Cladophora as raw materials,and which were character-ized the structure and morphology by using Fourier transform infrared spectroscopy(FI-IR),X-ray powder diffraction(XRD),and field emission scanning electron microscopy(SEM)before and after adsorbing iodine.Consequently,it was showed that both Cladophora biomass and magnetic Cladophora hydrothermal chars were good at iodine adsorption perfor-mance,the iodine adsorption capacity of Cladophora biomass was 593.82 mg/g,while the adsorption capacity of magnetic Cladophora hydrothermal chars was 307.10 mg/g.In addition,the magnetic Cladophora hydrothermal chars thus prepared showed a good magnetic recovery performance,so it is a low-cost environmentally friendly adsorbent for capturing iodine from aqueous solution.

关 键 词：刚毛藻 磁性水热炭 碘吸附 吸附性能 

分 类 号：X131[环境科学与工程—环境科学]