详细信息
分子筛疏水改性调控及吸附分离研究进展
Research progress on hydrophobic modification regulation and adsorption-separation of zeolites
文献类型:期刊文献
中文题名:分子筛疏水改性调控及吸附分离研究进展
英文题名:Research progress on hydrophobic modification regulation and adsorption-separation of zeolites
作者:李室庆 阮祥辉 王卓 鲁仰辉 张浩 张俊伟 庄姝娴 吕梦岚
第一作者:李室庆
机构:[1]贵州大学化学化工学院,贵州省能量转换与存储技术工程研究中心,贵阳550025;[2]贵州理工学院资源与环境工程学院,贵阳550003;[3]国家电投集团科学技术研究院有限公司碳中和研究中心,北京102200
第一机构:贵州大学化学化工学院,贵州省能量转换与存储技术工程研究中心,贵阳550025
年份:2026
卷号:35
期号:1
起止页码:81-100
中文期刊名:矿冶
外文期刊名:Mining And Metallurgy
基金:国家电投集团科学技术研究院有限公司技术委托项目(126001JX0120231006);机械互锁式多孔芳香骨架结构对锂离子传输性能研究项目(贵大人基合字(2023)33号(X2024017));基于酞菁类多孔有机框架的合成及其光伏性能研究项目(贵大基础(2023)18号(X2023335))。
语种:中文
中文关键词:分子筛;疏水改性;气体吸附;气体分离;污染性气体
外文关键词:molecular sieve;dewatering modification;gas adsorption;gas separation;polluting gases
摘要:多孔分子筛凭借可调控的孔道结构与表面活性位点在气体吸附分离中展现显著优势,但在实际工况中易因表面亲水性Si―OH基团优先吸附水分子,引发吸附活性位点失活及孔道堵塞,导致吸附分离性能衰减。针对这一问题,疏水改性调控策略可通过阻断水分子竞争吸附成为提升分子筛水热稳定性的关键策略。本文围绕分子筛的疏水改性方法,阐述不同改性机理,总结不同改性手段的理论依据。同时,基于疏水改性分子筛的研究,探讨其在湿润工况条件下对污染性气体的吸附分离应用研究进展,为相关领域的研究与实践提供参考。
Porous molecular sieves demonstrate remarkable advantages in adsorptive separation of pollutant gases due to their tunable pore architectures and surface-active sites.However,under high-humidity operating conditions,the inherent hydrophilic Si―OH groups on molecular sieve surfaces exhibit preferential water molecule adsorption.This phenomenon induces deactivation of adsorption-active sites and subsequent pore channel occlusion,ultimately resulting in severe degradation of separation efficiency.To address this bottleneck,hydrophobic modification has emerged as a critical strategy to enhance the hydrothermal stability of molecular sieves by suppressing competitive water molecule adsorption.Furthermore,building upon research progress in hydrophobically modified molecular sieves,we systematically discuss their application advancements in adsorptive separation of pollutant gases under moisture-saturated operating conditions,providing valuable references for both scientific research and practical implementation in related fields.
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