Enhanced efficiency of MoS2/SnO2 nanocomposite as a catalyst for the photodegradation of methylene blue

IF 2.7 4区 材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Journal of Materials Research Pub Date : 2024-09-09 DOI:10.1557/s43578-024-01426-1
Asad Naseem, Yasir A. Haleem, Sheheera Irfan, Muhammad Usman, Naseeb Ahmad, Muhammad Arshad, Muhammad Imran Irshad, Muhammad Farooq Saleem, Rashid Khan
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Abstract

In this work, the characteristics of MoS2 and its nanocomposite with SnO2 for photocatalytic degradation of methylene blue have been investigated. The MoS2 and MoS2/SnO2 nanocomposites were synthesized by the hydrothermal method. SEM analysis shows the flower-like structure of MoS2 while MoS2/SnO2 nanocomposites shows grain-like structure. The EDX analysis of the MoS2 and MoS2/SnO2 nanocomposites confirm the samples were mainly composed of Mo, S, Sn, and O atoms and the XRD patterns confirm hexagonal and rhombohedral phases, respectively. The FTIR spectra indicate the presence of both hydroxyl and carboxyl functional groups at the sample's surface. The UV–Visible spectroscopy findings witness both samples are being active in the visible range. Further, the band gap estimation through Tauc plot supports the assertion that these materials could be an efficient catalyst for photodegradation. Furthermore, the photodegradation of methylene blue (used as a dye) findings declare the maximum efficiency of 93% by using MoS2/SnO2 nanocomposite as a catalyst.

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提高 MoS2/SnO2 纳米复合材料作为光降解亚甲基蓝催化剂的效率
本文研究了 MoS2 及其与 SnO2 的纳米复合材料在光催化降解亚甲基蓝方面的特性。MoS2 和 MoS2/SnO2 纳米复合材料是通过水热法合成的。扫描电镜分析表明,MoS2 呈花状结构,而 MoS2/SnO2 纳米复合材料呈粒状结构。MoS2 和 MoS2/SnO2 纳米复合材料的 EDX 分析表明,样品主要由 Mo、S、Sn 和 O 原子组成。傅立叶变换红外光谱显示样品表面存在羟基和羧基官能团。紫外-可见光谱分析结果表明,这两种样品在可见光范围内都具有活性。此外,通过陶克曲线图估算的带隙也证明了这些材料可以成为光降解的高效催化剂。此外,亚甲基蓝(用作染料)的光降解结果表明,使用 MoS2/SnO2 纳米复合材料作为催化剂,其光降解效率最高可达 93%。
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来源期刊
Journal of Materials Research
Journal of Materials Research 工程技术-材料科学:综合
CiteScore
4.50
自引率
3.70%
发文量
362
审稿时长
2.8 months
期刊介绍: Journal of Materials Research (JMR) publishes the latest advances about the creation of new materials and materials with novel functionalities, fundamental understanding of processes that control the response of materials, and development of materials with significant performance improvements relative to state of the art materials. JMR welcomes papers that highlight novel processing techniques, the application and development of new analytical tools, and interpretation of fundamental materials science to achieve enhanced materials properties and uses. Materials research papers in the following topical areas are welcome. • Novel materials discovery • Electronic, photonic and magnetic materials • Energy Conversion and storage materials • New thermal and structural materials • Soft materials • Biomaterials and related topics • Nanoscale science and technology • Advances in materials characterization methods and techniques • Computational materials science, modeling and theory
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