Influence of silica precursors on octahedron shaped nano NaY zeolite crystal synthesis
作者： Pankaj Sharma , Su-Jung Jeong , Moon-Hee Han , Churl-Hee Cho
DOI: 10.1016/J.JTICE.2014.12.025
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摘要: Abstract The present work reports the synthesis of nanosized NaY zeolite crystals from clear solution using different silica sources, i.e., tetramethylammonium silicate (TMAS), colloidal suspension (CSS) and tetraethylorthosilicate (TEOS). examination phase purity by X-ray diffraction (XRD), morphological studies scanning electron microscopy (SEM), evaluation particle nature entities light scattering analysis (LSA) reveals that use sources significantly influenced properties final product. obtained TEOS have high narrow size distribution. SEM LSA results reveal as source produces average 85 nm whereas TMAS yields around 50 but in aggregated form. Furthermore, prolonged hydrothermal treatment case containing precursor solutions leads to transformation NaA aggregation growth process.
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sci-hub.se 参考文章(15)
Reda M. Mohamed, Hisham M. Aly, Mohamed F. El-Shahat, Ibrahim A. Ibrahim, Effect of the silica sources on the crystallinity of nanosized ZSM-5 zeolite Microporous and Mesoporous Materials. ,vol. 79, pp. 7- 12 ,(2005) , 10.1016/J.MICROMESO.2004.10.031
Sherrie Elzey, Anamika Mubayi, Sarah C. Larsen, Vicki H. Grassian, FTIR study of the selective catalytic reduction of NO2 with ammonia on nanocrystalline NaY and CuY Journal of Molecular Catalysis A-chemical. ,vol. 285, pp. 48- 57 ,(2008) , 10.1016/J.MOLCATA.2007.12.032
S Mintova, V Valtchev, Effect of the silica source on the formation of nanosized silicalite-1: an in situ dynamic light scattering study Microporous and Mesoporous Materials. ,vol. 55, pp. 171- 179 ,(2002) , 10.1016/S1387-1811(02)00401-8
N. Viswanadham, Raviraj Kamble, Madhulika Singh, Manoj Kumar, G. Murali Dhar, Catalytic properties of nano-sized ZSM-5 aggregates Catalysis Today. ,vol. 141, pp. 182- 186 ,(2009) , 10.1016/J.CATTOD.2008.03.026
Lubomira Tosheva, Valentin P. Valtchev, Nanozeolites: Synthesis, Crystallization Mechanism, and Applications Chemistry of Materials. ,vol. 17, pp. 2494- 2513 ,(2005) , 10.1021/CM047908Z
P. Morales-Pacheco, F. Alvarez, L. Bucio, J. M. Domínguez, Synthesis and Structural Properties of Zeolitic Nanocrystals II: FAU-Type Zeolites Journal of Physical Chemistry C. ,vol. 113, pp. 2247- 2255 ,(2009) , 10.1021/JP8070713
Qinghua Li, Boriana Mihailova, Derek Creaser, Johan Sterte, Aging effects on the nucleation and crystallization kinetics of colloidal TPA-silicalite-1 Microporous and Mesoporous Materials. ,vol. 43, pp. 51- 59 ,(2001) , 10.1016/S1387-1811(00)00346-2
Xu Zhang, Dingxing Tang, Guojun Jiang, Synthesis of zeolite NaA at room temperature: The effect of synthesis parameters on crystal size and its size distribution Advanced Powder Technology. ,vol. 24, pp. 689- 696 ,(2013) , 10.1016/J.APT.2012.12.010
Mary L Lind, Asim K Ghosh, Anna Jawor, Xiaofei Huang, William Hou, Yang Yang, Eric MV Hoek, None, Influence of Zeolite Crystal Size on Zeolite-Polyamide Thin Film Nanocomposite Membranes Langmuir. ,vol. 25, pp. 10139- 10145 ,(2009) , 10.1021/LA900938X
Bi-Zeng Zhan, Mary Anne White, Tsun-Kong Sham, James A. Pincock, René J. Doucet, K. V. Ramana Rao, Katherine N. Robertson, T. Stanley Cameron, Zeolite-Confined Nano-RuO2: A Green, Selective, and Efficient Catalyst for Aerobic Alcohol Oxidation Journal of the American Chemical Society. ,vol. 125, pp. 2195- 2199 ,(2003) , 10.1021/JA0282691