矿产保护与利用2025，Vol.45Issue(1)：60-69,10.DOI:10.13779/j.cnki.issn1001-0076.2024.08.010
蒙脱石层间1T型MoS2的限域合成及重金属吸附性能
Confinement Synthesis of 1T Molybdenum Disulfide at the Interlayer of Montmorillonite and the Adsorption Properties of Heavy Metal Ions
摘要
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.关键词
二硫化钼/蒙脱石/限域效应/晶体结构/重金属/吸附Key words
molybdenum disulfide/montmorillonite/confinement effect/crystal structure/heavy metal/adsorption分类
矿山工程引用本文复制引用
吴鹏,黄聪,刘小艺,陈情泽,蒋浩东,夏开胜,李珍,王洋..蒙脱石层间1T型MoS2的限域合成及重金属吸附性能[J].矿产保护与利用,2025,45(1):60-69,10.基金项目
广东省科技计划项目(2023B1212060048) （2023B1212060048）
新疆维吾尔自治区重大科技专项(2022A03009) （2022A03009）
