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    Novel and potential chemical sensors for Au(III) ion detection and recovery in electric waste samples

    Access Status
    Fulltext not available
    Authors
    Shahat, A.
    Mohamed, M.H.
    Awual, Rabiul
    Mohamed, S.K.
    Date
    2020
    Type
    Journal Article
    
    Metadata
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    Citation
    Shahat, A. and Mohamed, M.H. and Awual, M.R. and Mohamed, S.K. 2020. Novel and potential chemical sensors for Au(III) ion detection and recovery in electric waste samples. Microchemical Journal. 158: Article No. 105312.
    Source Title
    Microchemical Journal
    DOI
    10.1016/j.microc.2020.105312
    ISSN
    0026-265X
    Faculty
    Faculty of Science and Engineering
    School
    WASM: Minerals, Energy and Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/88607
    Collection
    • Curtin Research Publications
    Abstract

    In this study, we described the development of new-developed chemical sensors to detect ultra-trace level of gold (Au(III)) ions in waste electric samples. The structured sensors were constructed using highly porous nanosphere as a carrier afterwards the decorating in the effective way with organic ligand particles of 2,5 dimercapto-1,3,4 thiadiazole (DMcT) to produce DMcT sensor and with 2-amino-5-mercapto-1,3,4-thiadiazole (AMTD) to fabricate AMDT sensor. The ability of the sensors toward the recognition of Au(III) ions was enhanced by the using of nanoparticles with their unique characters as a carrier in the sensors, hence increased the sensors capacities to sense the Au(III) ions (and thus recovering from electronic wastes) with extra sensitivity, selectivity, and a lower detection limit was achieved. Moreover, the developed chemical sensors have the ability for detecting Au(III) ions spectrophotometry even at trace concentration level of Au(III) ions (~0.22 μg/L) in rapid, straightforward procedure and fast process. The sensors were tested for detection of Au(III) ions in electronic waste samples.

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