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Language: English

Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received October 18, 2023
Accepted January 3, 2024

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Controllable Preparation of Zeolite-P/Calcined Diatomite with MgCl 2

Zhengzheng Guo Zijie Ren¹ Huimin Gao¹ Junfang Guan¹ Peiyue Li² Renji Zheng³ Hang Yin⁴ Zhijie Chen⁵

School of Resources and Environment Engineering , Wuhan University of Technology ¹Key Laboratory of Green Utilization of Critical Non-metallic Mineral Resources, Ministry of Education ²CNBM Research Institute for Advanced Glass Materials Group ³School of Minerals Processing and Bioengineering , Central South University ⁴hina Energy Green Building Material CO. ⁵Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering , University of Technology Sydney ,

Korean Journal of Chemical Engineering, June 2024, 41(6), 1851-1859(9), https://doi.org/10.1007/s11814-024-00013-8

Abstract

Developing highly effi cient calcined diatomite (C-D)-based fi lter aids with excellent adsorption performance is of great

signifi cance. Herein, Zeolite-P was successfully synthesized on the surface of C-D through hydrothermal modifi cation with

NaOH and MgCl 2 as effi cient morphology control agents. The optimal Zeolite-P/C-D material perfectly retained the diatomite

structure and showed a whiteness of 83.36% and a high specifi c surface area of 237.47 m 2 /g, leading to an excellent

adsorption capacity for methylene blue trihydrate (MB) of 125.46 mg/g and a good permeability of 0.43 darcy. The porous

fi brous microspheres Zeolite-P was synthesized on the surface of C-D under controlled conditions to improve the adsorption

performance of Zeolite-P/C-D material. By developing diatomite-based composites for fi lter aids applications, this study

paves the way for the comprehensive and effi cient utilization of low-cost diatomite resources.

Keywords

Calcined diatomite · Controllable preparation · Modifi cation · Adsorption capacity · Permeability