Preparation of sodium alginate-gangue composite molecular sieves and  their methylene blue adsorption properties

Chen Guohao; Li Jiyang; Liu Gang; Lang Daning; Guo Jia; Wu Ronglan

doi:10.19817/j.cnki.issn1006-3536.2025.05.026

New Chemical Materials >

2025 , Vol. 53 >Issue 5: 202 - 210

DOI: https://doi.org/10.19817/j.cnki.issn1006-3536.2025.05.026

Preparation of sodium alginate-gangue composite molecular sieves and their methylene blue adsorption properties

Chen Guohao ,
Li Jiyang ,
Liu Gang ,
Lang Daning ,
Guo Jia ,
Wu Ronglan

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1. Key Laboratory of petroleum and Natural Gas Fine Chemicals of Ministry of Education and Xinjaing Uyghur Autonomous Region,School of Chemical Engineering and Technology, Xinjiang University,Urumqi 830046;
2. Xinjiang Energy Group Co.,Ltd.,Urumqi 830000

Received date: 2024-03-25

Revised date: 2024-11-26

Online published: 2025-05-21

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Abstract

Sodium alginate-gangue-based molecular sieve composites (SA-CGMS) were prepared by composite calcination using gangue and sodium alginate (SA) as raw materials.The composites were used for the adsorption of methylene blue (MB).The structure was characterized by SEM.The results showed that the prepared composite molecular sieves had an orthotetrahedral structure with smooth surface and sharp corners,and the SA was uniformly attached on the gangue molecular sieves (CGMS).The adsorption experiments revealed that the maximum adsorption capacity of SA-CGMS for MB was 99.824mg/g and the adsorption conformed to the Langmuir model and quasi-secondary kinetic model,which indicated that the adsorption was a monolayer chemisorption.The adsorption process was characterized by interaction forces such as hydrogen bonding and electrostatic interaction.

Key words： gangue-based molecular sieve; sodium alginate; composite material; MB

Cite this article

Chen Guohao , Li Jiyang , Liu Gang , Lang Daning , Guo Jia , Wu Ronglan . Preparation of sodium alginate-gangue composite molecular sieves and their methylene blue adsorption properties[J]. New Chemical Materials, 2025 , 53(5) : 202 -210 . DOI: 10.19817/j.cnki.issn1006-3536.2025.05.026

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