化工进展2023，Vol.42Issue(11)：6076-6085,10.DOI:10.16085/j.issn.1000-6613.2022-2371
离子改性的CON材料用于吸附分离NF3
Adsorptive separation of NF3 using ion-modified CON material
摘要
Abstract
Adsorptive separation of NF3 from semiconductor exhaust gases has become an increasingly important topic in industrial applications.By introducing iodine ions into cage-like organic network(CON),quaternized I-CON material was prepared.The DFT calculation revealed that the electric field was formed on the pore surface by introducing iodide ions,which enhanced the inducing force between NF3 molecule and I-CON framework.Compared with CON,the NF3 adsorption capacity of I-CON increased from 30.49mL/g to 45.13mL/g and the IAST selectivity increased from 10.59-15.49 to 15.01-19.47 according to the single-component gas adsorption results.Moreover,the dynamic adsorption selectivity of I-CON was also higher than that of CON in the breakthrough tests.Thus,separation ability of CON could be effectively improved by ion modification,showing its potential for the real-world NF3 capture and enrichment.关键词
多孔有机材料/离子型吸附剂/吸附分离/三氟化氮/含氟电子气体Key words
porous organic material/ionic adsorbent/adsorptive separation/nitrogen trifluoride/fluorinated greenhouse gases分类
化学化工引用本文复制引用
伍岳,李晓宇,陶春珲,张莹,李印辉,张文祥,杨伯伦,马和平..离子改性的CON材料用于吸附分离NF3[J].化工进展,2023,42(11):6076-6085,10.基金项目
国家自然科学基金(22178280) （22178280）
核数据基础重点实验室项目(JCKY2021201C151) （JCKY2021201C151）
西安交通大学"青年拔尖人才"项目(HG6J001). （HG6J001）
