TY - JOUR
T1 - Exploratory Synthesis of Low-Silica Nanozeolites through Geopolymer Chemistry
AU - Chen, Shaojiang
AU - Zhang, Wenwen
AU - Sorge, Lukas P.
AU - Seo, Dong Kyun
N1 - Funding Information:
This research was supported by Public Health Service Grant AI121733 awarded to S.E.H. and D.-K.S. from the NIH National Institute of Allergy and Infectious Diseases. We gratefully acknowledge the use of facilities within the LeRoy Eyring Center for Solid State Science at Arizona State University as well as BASF for their donation of metakaolin.
PY - 2019/2/6
Y1 - 2019/2/6
N2 - Nanozeolites are of great interest with the premise of their efficiency in traditional applications such as catalysis and separation, as well as their emerging applications including chemical sensors, medicine, and food industry. We report a new geopolymerization route for the synthesis of nanozeolites with different crystal structures by exploring the Na-Al-Si-H 2 O quaternary phase space under a mild hydrothermal condition. Nanostructured faujasite (FAU), cancrinite (CAN), and sodalite (SOD) zeolites with a crystallite size smaller than 40 nm were successfully produced from our exploration, as well as a submicron-sized Linde-Type A (LTA) zeolite. The transmission electron microscopy and nitrogen sorption analysis on representative zeolite samples showed that FAU and SOD zeolites exhibit textural mesopores, while CAN products have a more open aggregate structure. Our findings establish the geopolymerization as a convenient route for production of low-silica nanozeolites.
AB - Nanozeolites are of great interest with the premise of their efficiency in traditional applications such as catalysis and separation, as well as their emerging applications including chemical sensors, medicine, and food industry. We report a new geopolymerization route for the synthesis of nanozeolites with different crystal structures by exploring the Na-Al-Si-H 2 O quaternary phase space under a mild hydrothermal condition. Nanostructured faujasite (FAU), cancrinite (CAN), and sodalite (SOD) zeolites with a crystallite size smaller than 40 nm were successfully produced from our exploration, as well as a submicron-sized Linde-Type A (LTA) zeolite. The transmission electron microscopy and nitrogen sorption analysis on representative zeolite samples showed that FAU and SOD zeolites exhibit textural mesopores, while CAN products have a more open aggregate structure. Our findings establish the geopolymerization as a convenient route for production of low-silica nanozeolites.
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U2 - 10.1021/acs.cgd.8b01636
DO - 10.1021/acs.cgd.8b01636
M3 - Article
AN - SCOPUS:85061262862
VL - 19
SP - 1167
EP - 1171
JO - Crystal Growth and Design
JF - Crystal Growth and Design
SN - 1528-7483
IS - 2
ER -