Open AccessPreparation and characterization of mesoporous zeolite from solid waste
Author(s) -
Hao Nguyen Truong Gia,
Huy Tran Huynh Gia,
Phuong Nguyen Thi Truc,
Tu Le Nguyen Quang,
Dung Nguyen Van,
An Ngo Thanh,
Long Nguyen Quang
Publication year - 2020
Publication title -
xúc tác và hấp phụ
Language(s) - English
Resource type - Journals
ISSN - 0866-7411
DOI - 10.51316/jca.2020.071
Subject(s) - zeolite , mesoporous material , husk , materials science , chemical engineering , mesoporous organosilica , chemistry , organic chemistry , catalysis , mesoporous silica , botany , engineering , biology
In this study, experimental results on mesoporous zeolite preparation from a common solid waste, the rice husk ash by a top-down and bottom-up approach were reported. In top-down method, the consecutive treatments of zeolite by acid and alkaline in the presence of a cationic surfactant (CTAB) successfully generated mesopores in the zeolite. In bottom-up method, the sufficient added amount of CTAB in the gel composition could form mesopores in the zeolite. The obtained mesoporous zeolite possessed mesopore with a size of around 3-6 nm in both top-down and bottom-up approaches. As a result, the pore volume of the mesoporous zeolite was significantly increased by more than 60% when comparing to the “parent” rice-husk-ash derived zeolite. Significantly, the mesopore surface area of the mesoporous zeolite could be 2.4 times higher than that of the parent zeolite.