Confinement Synthesis of 1T Molybdenum Disulfide at the Interlayer of Montmorillonite and the Adsorption Properties of Heavy Metal Ions

WU Peng; HUANG Cong; LIU Xiaoyi; CHEN Qingze; JIANG Haodong; XIA Kaisheng; LI Zhen; WANG Yang

doi:10.13779/j.cnki.issn1001-0076.2024.08.010

2025 Vol. 45, No. 1

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Article navigation > Conservation and Utilization of Mineral Resources > 2025 > 45(1): 60-69

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WU Peng, HUANG Cong, LIU Xiaoyi, CHEN Qingze, JIANG Haodong, XIA Kaisheng, LI Zhen, WANG Yang. Confinement Synthesis of 1T Molybdenum Disulfide at the Interlayer of Montmorillonite and the Adsorption Properties of Heavy Metal Ions[J]. Conservation and Utilization of Mineral Resources, 2025, 45(1): 60-69. doi: 10.13779/j.cnki.issn1001-0076.2024.08.010

Citation:

WU Peng, HUANG Cong, LIU Xiaoyi, CHEN Qingze, JIANG Haodong, XIA Kaisheng, LI Zhen, WANG Yang. Confinement Synthesis of 1T Molybdenum Disulfide at the Interlayer of Montmorillonite and the Adsorption Properties of Heavy Metal Ions[J]. Conservation and Utilization of Mineral Resources, 2025, 45(1): 60-69. doi: 10.13779/j.cnki.issn1001-0076.2024.08.010

Confinement Synthesis of 1T Molybdenum Disulfide at the Interlayer of Montmorillonite and the Adsorption Properties of Heavy Metal Ions

1.
Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, Hubei, China
2.
Northwest of China Metallurgical Geology Bureau of Geological Prospecting Institute Jiuquan Testing Center, Jiuquan 735009, Gansu, China
3.
Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Chinese Academy of Science, Guangzhou 510640, Guangdong, China

More Information

Corresponding author: WANG Yang, wyisian@cug.edu.cn

Received Date: 27 March 2024

Publish Date: 15 February 2025

Abstract

Abstract

1T molybdenum disulfide (MoS₂) has great potential for heavy metal adsorption in sewage. However, due to the difficulty of synthesis and poor stability, the research and application of 1T MoS₂ adsorption materials are difficult to achieve breakthroughs. In this paper, the direct synthesis of 1T MoS₂ in the interlayer of the rich and cheap natural layered mineral montmorillonite is realized by nano confinement effect, and the adsorbent of montmorillite−1T MoS₂ interlayer composite material (M−S) is constructed. By means of scanning electron microscopy (SEM), transmission electron microscopy (TEM), X−ray diffractometer (XRD), Raman spectroscopy, X−ray photoelectron spectroscopy (XPS), the successful synthesis of 1T MoS₂ in M−S has been proved, and the content of 1T phase is up to 92.5%. The prepared adsorbent materials were utilized for the efficient removal of Cd²⁺ from aqueous solutions, and the impacts of pH value, adsorption time, and initial Cd²⁺ concentration on the adsorption process were systematically investigated. The findings revealed that optimal adsorption performance was achieved at a pH value of 5.0, an adsorption time of 5 minutes, and an initial Cd²⁺ concentration of 250 mg/L. In conjunction with theoretical simulation, the optimal adsorption capacity was determined to be 43.9 mg/g, in accordance with the quasi−second−order kinetic equation and Langmuir isothermal adsorption model. This study presents a novel approach for synthesizing 1T phase molybdenum disulfide, and also offers valuable insights for the development of efficient heavy metal adsorbents.
- molybdenum disulfide /
- montmorillonite /
- confinement effect /
- crystal structure /
- heavy metal /
- adsorption

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References

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