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Sustainable Synthesis of Pure Silica Zeolites from a Combined Strategy of Zeolite Seeding and Alcohol Filling.
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2019-07-30 , DOI: 10.1002/anie.201906559
Qinming Wu 1 , Longfeng Zhu 1, 2 , Yueying Chu 3 , Xiaolong Liu 3 , Changsheng Zhang 1 , Juan Zhang 1 , Hao Xu 1 , Jun Xu 3 , Feng Deng 3 , Zhaochi Feng 4 , Xiangju Meng 1 , Feng-Shou Xiao 1
Affiliation  

Currently, the synthesis of pure silica zeolites always requires the presence of organic structure-directing agents (OSDAs), which direct the assembly pathway and ultimately fill the pore space. A sustainable route is now reported for synthesizing pure silica zeolites in the absence of OSDAs from a combined strategy of zeolite seeding and alcohol filling, where the zeolite seeds direct crystallization of zeolite crystals from amorphous silica, while the alcohol is served as pore filling in the zeolites. Very importantly, the alcohol could be fully washed out from zeolite pores by water at room temperature, which completely avoids calcination at high temperature for removal of OSDAs in the synthesis of pure silica zeolites.

中文翻译:

通过沸石接种和酒精填充的联合策略可持续合成纯硅沸石。

当前,纯二氧化硅沸石的合成总是需要有机结构导向剂(OSDA)的存在,其引导组装路径并最终填充孔空间。现在已经报道了一种在没有OSDA的情况下通过沸石播种和酒精填充相结合的策略合成纯二氧化硅沸石的可持续途径,其中沸石种子直接从无定形二氧化硅中结晶出沸石晶体,而酒精则用作填充沸石的孔。沸石。非常重要的是,可以在室温下用水将醇从沸石孔中完全洗掉,这完全避免了在高温下进行煅烧以除去合成纯二氧化硅沸石中的OSDA。
更新日期:2019-07-30
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