三维有序大孔铜基吸附剂的制备及除碘性能  

Preparation and Performance of Three-dimensionally Ordered Macropores Copper-based Composites for Iodine Vapor Capture

作　　者：王龙江[1] 李永国[1] 俞杰[1] 樊惠玲[2] 吴波[1] 韩丽红[1] 李彦樟 乔太飞[1] WANG Longjiang;LI Yongguo;YU Jie;FAN Huiling;WU Bo;HAN Lihong;LI Yanzhang;QIAO Taifei(Institute of Environmental Engineering and Technology,China Institute for Radiation Protection,Taiyuan 030006;State Key Laboratory of Coal Science and Technology Co-founded by Shanxi Province and the Ministry of Science and Technology,Taiyuan University of Technology,Taiyuan 030024)

机构地区：[1]中国辐射防护研究院环境工程与技术研究所,太原030006 [2]太原理工大学煤科学与技术省部共建国家重点实验室,太原030024

出　　处：《材料导报》2019年第4期660-664,共5页Materials Reports

基　　金：国家自然科学基金(21576180)~~

摘　　要：分别采用胶晶模板法和溶胶-凝胶法制备了具有三维有序大孔(3DOM)结构和无3DOM结构的铜硅复合物。通过静态实验评价了复合物对气态碘的吸附性能。采用SEM、TEM、XRD、热重仪对吸附碘前后的样品进行了表征,并对其进行了N2等温吸附脱附测试。结果表明:所制备的3DOM铜硅复合物三维孔道结构规整;与无3DOM结构的铜硅复合物及商品纳米铜粉相比,3DOM铜硅复合物对气态碘的吸附性能明显提升,这主要归功于其发达的孔道结构、大的比表面积和纳米尺寸晶粒。这一研究为开发新型高效的碘吸附剂提供了很有价值的依据。Copper-silica composites with/without three-dimensionally ordered macropores(3DOM) structure were synthesized by colloidal crystal template method and sol-gel method respectively.The performance of prepared samples for iodine vapor adsorption was evaluated by static testing,the samples before and after adsorption were characterized through SEM,TEM,XRD,TG-DTG,and the N 2 isotherm adsorption desorption test was carried out.The results indicated that the structure of 3DOM copper-silica composites is intact,and the performance of 3DOM copper-si-lica composites was improved highly compared with copper-silica composites as well as the commercial nano-copper,this is mainly attributed to the unique structure of 3DOM: the develop pores,high surface areas and nano-sized crystal.This study provided significant results for development of new high performance iodine adsorbents.

关 键 词：三维有序大孔 铜硅复合物 气态碘 吸附 

分 类 号：TL941[核科学技术—辐射防护及环境保护]