Tran Huynh Gia Huy1,2, Nguyen Thi Truc Phuong1,2, Ho Gia Quynh1,2, Nguyen Van Dung1,2, Ngo Tran Hoang Duong1,2, Nguyen Quang Long1,2This email address is being protected from spambots. You need JavaScript enabled to view it.
1Faculty of Chemical Engineering, Ho Chi Minh University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City, Vietnam
2Vietnam National University Ho Chi Minh City, Linh Trung Ward, Ho Chi Minh City, Vietnam
Received: March 5, 2023 Accepted: July 18, 2023 Publication Date: October 5, 2023
Copyright The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.
Nowadays “green” processes such as room temperature processes are interested in new researches for production of practical-important solid materials. Zeolitic LTA materials are commonly prepared by hydrothermal transformation using sodium hydroxide (NaOH), sodium aluminate (NaAlO2), and sodium metasilicate (Na2SiO3) at high temperatures (95 – 100 ◦C). In this study, sub-micron zeolite LTA was prepared at ambient temperature from metakaolin which is easily obtained from kaolin mineral. The prepared materials were characterized using various methods, including XRD to identify their structure, SEM and EDX to analyze the shape and proportional components of the elements, and the N2 adsorption–desorption method to determine the surface area and pore volume. Regarding the Cu2+ ion adsorption capability of the synthetic zeolite, the experimental results revealed that the sub-micron zeolite LTA has potential applications in practice because its adsorption rate exceeds that of the commercial zeolite and the rate constant of the second–order kinetics model of the prepared zeolite was 1.7 times higher than that of the commercial zeolite.
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