四苯基甲烷球磨法合成多孔碘蒸气吸附材料  

Ball⁃milling synthesis of organic porous materials with tetraphenylmethane for iodine vapor adsorption

作　　者：张承昕 王余莲[1] 苏峻樟 董春阳 王浩然 肖坤富 袁志刚[1] 苏德生 ZHANG Chengxin;WANG Yulian;SU Junzhang;DONG Chunyang;WANG Haoran;XIAO Kunfu;YUAN Zhigang;SU Desheng(School of Materials Science and Engineering,Shenyang Ligong University,Shenyang 110159,China;Liaoning Dan Carbon Group Corporation Limited,Dandong 118100,China;Liaoning Province Ultra-high Power Graphite Electrode Material Professional Technology Innovation Center,Dandong 118100,China)

机构地区：[1]沈阳理工大学材料科学与工程学院,辽宁沈阳110159 [2]辽宁丹炭科技集团有限公司,辽宁丹东118100 [3]辽宁省超高功率石墨电极材料专业技术创新中心,辽宁丹东118100

出　　处：《中国粉体技术》2024年第3期158-169,共12页China Powder Science and Technology

基　　金：国家自然科学基金项目,编号:52374271;辽宁省教育厅科学研究青年人才项目,编号:LJKZ0246;辽宁省重点研发计划-应用基础研究项目,编号:2022JH2/101300111;沈阳市科技局项目,编号:22-322-3-03;沈阳市中青年科技创新人才支持计划项目,编号:RC220104;辽宁省教育厅重点项目,编号:LJKMZ20220588;辽宁省大学生创新创业训练项目,编号:S202210144002、S202110144057;沈阳理工大学2021年引进高层次人才科研支持经费项目,编号:1010147001011。

摘　　要：【目的】避免在核能利用过程中产生的常见放射性污染核素129I和131I等碘蒸气泄漏对环境和生物产生危害,制备并探讨具有丰富孔道的有机多孔聚合物对碘蒸气的吸附性能。【方法】采用简便快捷的机械合成法,以具有正四面体结构的四苯基甲烷为单体,利用高能行星式球磨机球磨2 h制备3种具有较大比表面积和丰富孔道的有机多孔聚合物T-FDA、T-DCM和T-DCE,并利用碘单质在温度为75℃的密闭体系内升华模仿放射性碘蒸气,分别测试3种多孔材料的碘蒸气吸附性能。【结果】T-FDA、T-DCM、T-DCE的碘蒸气吸附质量分数分别可达461%、486%、444%,达到饱和吸附量的时间分别为5、8、6 h,且多孔材料在循环使用5次后碘吸附性能仅有轻微下降(≤6.8%)。【结论】以四苯基甲烷为单体,通过快速球磨法合成的多孔材料具有良好的碘蒸气吸附性能,有望在放射性碘蒸气吸附领域发挥重要作用。Objective Radioactive isotopes of iodine,such as iodine-129 and iodine-131,are prevalent contaminants during nuclear energy utilization.Managing radioactive iodine is a critical concern for researchers and the use of porous materials for iodine vapor adsorption presents a promising solution.However,traditional porous iodine adsorbents,including activated carbon and porous zeolite,exhibit drawbacks such as high density,limited structural versatility,low specific surface area,large pore size,low adsorption capacity,and inadequate cycling performance,significantly impeding their industrial applicability.Given these chal⁃lenges,it is necessary to develop novel porous materials for efficient iodine vapor adsorption.Porous Organic Polymers(POPs)emerge as a potential solution,characterized by high physical and chemical stability,low density,high porosity,large specific surface area,outstanding adsorption performance,and recyclability,offering a promising prospects in radioactive iodine treat⁃ment.Ball mills,as common crushing equipment,find widespread application in industries such as mineral processing,build⁃ing materials,and chemical industry.Furthermore,researchers use ball mills for chemical synthesis due to their advantages such as brief reaction times,high efficiency,simplicity,and potential for low-cost,straightforward,large-scale industrial pro⁃duction.In this study,tetraphenylmethane,featuring a three-dimensional structure served as the monomer,while a high-energy planetary ball mill functioned as a reactor,enabling swift and efficient construction of three POPs materials.These materi⁃als were evaluated for their adsorption performance and recycling ability in a simulated radioactive iodine vapor environment.Our research offers a viable solution for large-scale production of POPs materials and their practical application in iodine vapor adsorption.Methods In this study,we successfully synthesized three distinct porous organic polymers(POPs),namely T-FDA,T-DCM,and T-DCE,utilizing a rapid and efficient

关 键 词：四苯基甲烷 球磨法 有机多孔材料 碘蒸气吸附 

分 类 号：O64[理学—物理化学] TB4[理学—化学]