Preparation and Modification of Magnetic LSX Type Molecular Sieve by Directing Agent Method

WANG Hongliang; ZHANG Zhen; ZHANG Yongping

doi:10.3969/j.issn.1000-6532.2024.05.021

2024 Vol. 45, No. 5

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Article navigation > Multipurpose Utilization of Mineral Resources > 2024 > 45(5): 148-152

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WANG Hongliang, ZHANG Zhen, ZHANG Yongping. Preparation and Modification of Magnetic LSX Type Molecular Sieve by Directing Agent Method[J]. Multipurpose Utilization of Mineral Resources, 2024, 45(5): 148-152. doi: 10.3969/j.issn.1000-6532.2024.05.021

Citation:

WANG Hongliang, ZHANG Zhen, ZHANG Yongping. Preparation and Modification of Magnetic LSX Type Molecular Sieve by Directing Agent Method[J]. Multipurpose Utilization of Mineral Resources, 2024, 45(5): 148-152. doi: 10.3969/j.issn.1000-6532.2024.05.021

Preparation and Modification of Magnetic LSX Type Molecular Sieve by Directing Agent Method

1.
Zhengzhou Institute of Multipurpose Utilization of Mineral Resources, CAGS, China National Engineering Research Center for Utilization of Industrial Minerals, Key Laboratory for Polymetallic Ores' Evaluation and Utilization, MNR, Key Laboratory of Comprehensive Utilization of Gold Resource in Henan Province, Zhengzhou 450006, Henan, China
2.
National Key Laboratory of Human Factors Engineering，China Astronaut Research and Training Center, Beijing 100094, China

Received Date: 21 November 2022

Publish Date: 25 October 2024

Abstract

Abstract

This is an article in the field of materials science. Magnetic LSX molecular sieves were prepared by colloidal directing agent and Fe₃O₄. After silver ion exchange and hydrazine hydrate reduction, magnetic LSX molecular sieves containing silver atoms were prepared, the surface morphology, magnetic properties, phase structure, elemental composition and specific surface area of the samples were characterized by scanning electron microscopy, vibrating sample magnetometer, X-ray diffraction analyzer, photoelectron spectroscopy and specific surface adsorption instrument. The results showed that magnetic LSX molecular sieve is the composite material of LSX molecular sieve and Fe₃O₄. The micropore specific surface area was 679.38 m²/g. The optimum dosage of colloidal guide agent was 0.5%. The magnetic properties increased with the increase of Fe₃O₄ content. The specific surface area of magnetic LSX molecular sieve reduced after silver exchange with hydrazine hydrate.
- Directing agent /
- Magnetic /
- LSX molecular sieve /
- Silver ion /
- Silver atom

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References

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