沸石分子筛绿色高效合成的研究进展  被引量:6

Research Progress of Green and Efficient Synthesis of Zeolite

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作  者:吴春洋 王知微 赵莹 张红丹 程鹏 WU Chun-yang;WANG Zhi-wei;ZHAO Ying;ZHANG Hong-dan;CHENG Peng(Institute of Catalysis for Energy and Environment,College of Chemistry and Chemical Engineering,Shenyang Normal University,Shenyang 110034,China)

机构地区:[1]沈阳师范大学化学化工学院能源与环境催化研究所,辽宁沈阳110034

出  处:《化学试剂》2022年第11期1543-1550,共8页Chemical Reagents

基  金:国家自然科学基金项目(21701117,22172102);辽宁省“兴辽英才计划”项目(XLYC2007190);辽宁省自然基金指导计划项目(2019-ZD-0486);沈阳市中青年科技创新人才支持计划项目(RC210044)。

摘  要:沸石分子筛是一类多孔材料,因其具有有序的孔道结构、高的水热稳定性以及独特的催化活性,作为一种优异的固体催化剂广泛应用于化学工业中。沸石分子筛在制备过程需要使用含硅、铝的化工原料以及价格昂贵且有毒害的有机模板剂。投入使用前需要通过煅烧去除有机模板剂,不但会产生污染环境的NO_(x)化合物与温室气体CO_(2),而且会提高分子筛的合成成本。此外,沸石分子筛的晶化时间长达数天,造成极大能源损耗。因此,如何绿色高效地合成沸石分子筛材料意义重大。主要从合成原料和合成方法两方面阐述沸石分子筛的绿色高效合成,就其存在问题进行讨论,并对其未来发展进行展望。Zeolite is a kind of porous material, which is widely used in chemical industry as an excellent solid catalyst due to its ordered pore structure, high hydrothermal stability and unique catalytic activity.Expensive and toxic organic templates as well as chemical raw materials containing silicon and aluminum are necessary in the synthesis of zeolite.Before usage, the organic templates need to be removed by calcination, which will not only produce NO_(x)and greenhouse gas CO_(2),but also increase the synthesis cost of zeolite.In addition, the crystallization time of zeolite is up to several days, resulting in great loss of energy.Therefore, it is significant to synthesize zeolite via a green and efficient method.From two aspects of synthetic raw materials and synthetic methods expounded the green and efficient synthesis of zeolite, discussing its existing problems and prospecting its future development.

关 键 词:沸石分子筛 晶化 合成原料 羟基自由基辅助合成 微波辅助合成 无有机模板剂合成 无溶剂合成 

分 类 号:TQ424.25[化学工程]

 

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