Facile formation of hierarchical magnesium silicate hydrate microspheres as an adsorbent for the textile dyes

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外文摘要：Hierarchical porous magnesium silicate hydrate(MSH)microspheres composed of sheets are successfully developed under facile conditions using a hard template.The role of hexadecyltrimethylammonium bromide(CTAB)on the formation and adsorption behavior was also observed for the methyl orange and methylene blue.The formed MSH possesses a surface area of 453.24 m2/g,an average pore size of 6.38 nm,and a pore volume of 0.75 cm3/g without CTAB.Based on the role of CTAB and the change in the ratio of Mg/Si,the MSH retained its sphere-like structure with a variation in pore parameters.The formed MSH was used as an adsorbent to remove methylene blue and methyl orange.The pseudo-second-order kinetic and Langmuir Isotherm models are well-fitted,with a 256.4 mg/g removal capacity and 84.2 mg/g for methylene blue and methyl orange,respectively.The modified MSH with CTAB played a positive role for the methyl orange and a negative role for the methylene blue regarding removal performance.

外文关键词：

AdsorptionHierarchical microspheresMagnesium silicateMethyl orangeMethylene blueSurface modification

作者：

Tin Kyawoo、Naveed Karim、Chao Jiang、Saeed Ahmed、Weiliang Tian、Huiyu Li、Yongjun Feng

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作者单位：

State Key Laboratory of Chemical Resource Engineering,Beijing Engineering Center for Hierarchical Catalysts,Beijing University of Chemical Technology,Beijing,100029,China

Department of Chemistry,The University of Chakwal,Chakwal,48800,Pakistan

College of Chemistry and Chemical Engineering,Tarim University,Alar 843300,China

基金：

Beijing Engineering Center for Hierarchical Catalysts,Nanjiang Technology ProjectOpen Laboratory of State Key Laboratory of Organic and Inorganic CompositesCSC scholarship programdistinguished professor of Kunlun Scholars in Tarim University

项目编号：

2023AB028oic-2023010062018GXZ021558

出版年：

2024

DOI：

10.1016/j.partic.2024.06.005

颗粒学报(英文版)

中国颗粒学会　中国科学院过程工程研究所

颗粒学报(英文版)

CSTPCD

影响因子：0.632

ISSN：1674-2001

年,卷(期)：2024.93(10)