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  • Open Access

    ARTICLE

    Characterization of undoped and doped CdS nano-thin films by ZnO for photocatalytic application

    A. Thamera, S. Mohamedb,*

    Chalcogenide Letters, Vol.20, No.12, pp. 847-856, 2023, DOI:10.15251/CL.2023.2012.847

    Abstract Using Sol-gel technology, nanocomposite CdS: ZnO thin films with an equal molar ratio of 0.5 M on a glass substrate for water decontamination purposes. The ZnO doping ratios were (0, 1, 3, 5) vol. The ultrastructural, morphological, and optical properties of the prepared thin films were studied using X-ray diffraction (XRD), atomic force microscopy (AFM), and UV-vis spectra. The results indicated that the prepared nanostructured CdS: ZnO thin films contain uniformly spaced crystalline grains of both CdS and ZnO. The ZnO-doped selection ratio and uniform grain distribution produced outstanding photocatalytic and photocatalytic performance. With a More >

  • Open Access

    ARTICLE

    Analysis of the Performances of a New Type of Alumina Nanocomposite Structural Material Designed for the Thermal Insulation of High-Rise Buildings

    Yue Yu*

    FDMP-Fluid Dynamics & Materials Processing, Vol.19, No.3, pp. 697-709, 2023, DOI:10.32604/fdmp.2022.021482 - 29 September 2022

    Abstract The sol-gel method is used to prepare a new nano-alumina aerogel structure and the thermal properties of this nanomaterial are investigated comprehensively using electron microscope scanning, thermal analysis, X-ray and infrared spectrometer analysis methods. It is found that the composite aerogel alumina material has a multi-level porous nano-network structure. When employed for the thermal insulation of high-rise buildings, the alumina nanocomposite aerogel material can lead to effective energy savings in winter. However, it has almost no energy-saving effect on buildings where energy is consumed for cooling in summer. More >

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