Seeded Synthesis of Siliceous Beta Zeolite Nanocrystals and Their Performance in Volatile-Organic-Compounds Adsorption
LIU Chuntong1, ZHAO Xiaohui2, CHEN Haijun1
1. College of Electronic Information and Optical Engineering, Nankai University, Tianjin 300350, China;
2. Semiconductor Manufacturing International Corporation (Tian Jin), Tianjin 300385, China
Abstract：High silica Beta zeolites are ideal materials for the adsorption of volatile organic compounds (VOCS) because of their fairly big pore size and excellent hydrophobicity. However, the synthesis of high silica Beta zeolite with excellent adsorption ability still remain challengeable without using fluoride. In this research, a conventional hydrothermal synthesis method was used to synthesize nano-sized high silica Beta zeolite in a fluoride-free system by adding the zeolite precursor sol as seed. The results showed that the synthesized high silica Beta zeolites exhibited good crystallinity, high surface area and regular uniform morphology. Beta zeolite crystallized from the precursor sol could be dissolved and transformed during the hydrothermal synthesis, which facilitated the crystallization of high silica Beta zeolite. The synthesized high silica Beta zeolites exhibited good hydrophobicity and adsorption performance for VOCs
LIU Chuntong,ZHAO Xiaohui,CHEN Haijun. Seeded Synthesis of Siliceous Beta Zeolite Nanocrystals and Their Performance in Volatile-Organic-Compounds Adsorption[J]. Chemical Reaction Engineering and Technology, 2022, 38(3): 201-209.
