Sustainable Synthesis of Pure Silica Zeolites from a Combined Strategy of Zeolite Seeding and Alcohol Filling

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...

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Vydané v:Angewandte Chemie International Edition Ročník 58; číslo 35; s. 12138 - 12142
Hlavní autori: Wu, Qinming, Zhu, Longfeng, Chu, Yueying, Liu, Xiaolong, Zhang, Changsheng, Zhang, Juan, Xu, Hao, Xu, Jun, Deng, Feng, Feng, Zhaochi, Meng, Xiangju, Xiao, Feng‐Shou
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: Germany Wiley Subscription Services, Inc 26.08.2019
Vydanie:International ed. in English
Predmet:
Alcohol
Alcohols
Crystallization
Crystals
High temperature
seeding
Seeds
Silica
Silicon dioxide
sustainable synthesis
Synthesis
Zeolites
sustainable synthesis
zeolites
seeding
silica
ISSN:1433-7851, 1521-3773, 1521-3773
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Popis
Shrnutí: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. A sustainable route for synthesizing pure silica zeolites in the absence of organic structure‐directing agents from a combined strategy of zeolite seeding and alcohol filling is presented. The zeolite seeds direct crystallization of zeolite crystals from amorphous silica, while the alcohol is served as pore filling in the zeolite.
Bibliografia:These authors contributed equally to this work.
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ISSN:1433-7851
1521-3773
1521-3773
DOI:10.1002/anie.201906559