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Effects of Cetyltrimethylammonium Bromide and Heptane on the Surface Properties and CO 2 Adsorption of Zeolite NaX
Author(s) -
Krachuamram Somkiat,
Danvirutai Chanaiporn,
Youngme Sujittra,
Chanapattharapol Kingkaew Chayakul
Publication year - 2017
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.201700021
Subject(s) - zeolite , chemistry , heptane , aluminosilicate , adsorption , bromide , micelle , inorganic chemistry , nucleation , sodium aluminosilicate , sodium silicate , chemical engineering , organic chemistry , aqueous solution , catalysis , engineering
Zeolite X was synthesized by the gelation method for use as a CO 2 adsorbent. The zeolite was prepared from a sodium silicate solution and Al( OH ) 3 as silicon and aluminum source, respectively. The effects of cetyltrimethylammonium bromide ( CTAB ) and heptane addition on surface properties, morphology, and CO 2 adsorption capacities were investigated. The CO 2 adsorption capacity of the synthesized zeolite with the addition of CTAB and heptane increased as demonstrated by the higher CO 2 uptake (3.00 mmol/g), which was due to the higher surface area and pore volume. Interaction between CTAB micelles and sodium cations with aluminosilicate anions led to an increase in the nucleation rate and smaller crystalline sizes. The addition of heptane resulted in higher positively charged CTAB micelles and improved the affinity between the micelles and aluminosilicate anions.