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  • Open Access

    ARTICLE

    Harnessing the sunlight to degrade dye using polythiophene-based silver dopped ZnS composite

    A. Fatimaa, N. Nadeema, Bahaa Salehb, Z. A. Rehanc, S. Noreena, Hafiz T. Alib, M. Zahida,*

    Chalcogenide Letters, Vol.21, No.11, pp. 895-915, 2024, DOI:10.15251/CL.2024.2111.895

    Abstract The current research work investigated the photocatalytic degradation of dye using polythiophene-based silver-doped zinc sulfide (PT/Ag-ZnS). The ternary composite was synthesized by in-situ chemical oxidation polymerization approach and thoroughly characterized. Maximum photocatalytic activity depicted > 80% for Ag-ZnS and > 94% for PT/Ag-ZnS at pH 7 and 4 respectively at 10 mM oxidant and 30 mg/100 mL catalyst dose, 10 ppm IDC under 90 min. DMSO serves as an effective radical scavenger. The novel polymeric composite exhibits efficient reusability upto five cycles. Pseudo 1st -order kinetic model was best fitted for PT/Ag-ZnS. Toxicity analysis gave a More >

  • Open Access

    ARTICLE

    Analysis of Eigenvalues for Molecular Structures

    Muhammad Haroon Aftab1, Kamel Jebreen2,*, Mohammad Issa Sowaity3, Muhammad Hussain4

    CMC-Computers, Materials & Continua, Vol.73, No.1, pp. 1225-1236, 2022, DOI:10.32604/cmc.2022.029009 - 18 May 2022

    Abstract In this article, we study different molecular structures such as Polythiophene network, for and , Orthosilicate (Nesosilicate) , Pyrosilicates (Sorosilicates) , Chain silicates (Pyroxenes), and Cyclic silicates (Ring Silicates) for their cardinalities, chromatic numbers, graph variations, eigenvalues obtained from the adjacency matrices which are square matrices in order and their corresponding characteristics polynomials. We convert the general structures of these chemical networks in to mathematical graphical structures. We transform the molecular structures of these chemical networks which are mentioned above, into a simple and undirected planar graph and sketch them with various techniques of mathematics.… More >

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