用于增强光催化降解四环素的核壳结构MoS@ZIF-67纳米复合材料的合理设计
Rational Design of Core-Shell MoS@ZIF-67 Nanocomposites for Enhanced Photocatalytic Degradation of Tetracycline.
作者信息
Pannerselvam Maruthasalam, Siva Vadivel, Murugan Anbazhagan, Shameem Abdul Samad, Bavani Thirugnanam, Jhelai Sahadevan, Shanmugan Sengottaiyan, Ali Imran Hussain Showkath, Kannan Karthik
机构信息
Department of Physics, Karpagam Academy of Higher Education, Coimbatore 641021, Tamil Nadu, India.
Centre for Energy and Environment, Karpagam Academy of Higher Education, Coimbatore 641021, Tamil Nadu, India.
出版信息
Nanomaterials (Basel). 2025 Apr 3;15(7):545. doi: 10.3390/nano15070545.
Zeolitic imidazolate frameworks (ZIFs) and their composites are attractive materials for photocatalytic applications due to their distinct characteristics. Core-shell ZIFs have lately emerged as a particularly appealing type of metal-organic frameworks, with improved light-absorption and charge-separation capabilities. In this study, hybrid nanocomposite materials comprising a zeolitic imidazolate framework-67 and molybdenum disulfide (MoS) were fabricated with a core-shell structure. The prepared core-shell MoS@ZIF-67 nanocomposites were studied using XRD, FTIR, XPS, and HR-TEM techniques. The crystalline nature and the presence of characteristic functional groups of the composites were analyzed using XRD and FTIR, respectively. The photocatalytic degradation of antibiotic tetracycline (TC) was measured using visible light irradiation. Compared to pristine MoS (12%) and ZIF-67 (34%), the most active MoS@ZIF-67 nanocomposite (72%) exhibited a greater tetracycline degradation efficacy.
沸石咪唑酯骨架材料（ZIFs）及其复合材料因其独特的特性而成为光催化应用中具有吸引力的材料。核壳结构的ZIFs最近已成为一种特别有吸引力的金属有机骨架材料，具有改善的光吸收和电荷分离能力。在本研究中，制备了具有核壳结构的、由沸石咪唑酯骨架-67和二硫化钼（MoS）组成的混合纳米复合材料。使用X射线衍射（XRD）、傅里叶变换红外光谱（FTIR）、X射线光电子能谱（XPS）和高分辨率透射电子显微镜（HR-TEM）技术对制备的核壳结构MoS@ZIF-67纳米复合材料进行了研究。分别使用XRD和FTIR分析了复合材料的晶体性质和特征官能团的存在情况。使用可见光照射测量了抗生素四环素（TC）的光催化降解情况。与原始的MoS（12%）和ZIF-67（34%）相比，活性最高的MoS@ZIF-67纳米复合材料（72%）表现出更高的四环素降解效率。
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