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Browsing by Author Tuyet, Nhung Pham

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    • A hybrid design of Ag-decorated ZnO on layered nanomaterials (MgAC) with photocatalytic and antibacterial dual-functional abilities
    Authors: Tuyet, Nhung Pham; Nguyen, Thi Hue; Young,Chul Lee; Tran, Quang Huy; Nguyen, Thi Thu Thuy; Hoang, Van Tuan; Nguyen, Tien Khi; Vu, Ngoc Phan; Tran, Dang Thanh; Vu, Dinh Lam; Anh, Tuan Le;  Advisor: -;  Co-Author: - (2021)

    In this work, Ag@ZnO and Ag@ZnO/MgAC photocatalysts were synthesized using a simple two-step electrochemical method by the addition of magnesium aminoclay (MgAC) as a great stabilizer and a Lewis base, which could donate electrons for reduction of Ag+ and Zn2+ ions, facilitating uniform formation as well as effective inhibition of aggregation of Ag@ZnO nanoparticles (NPs) on the MgAC matrix. Ag@ZnO and Ag@ZnO/MgAC were investigated for photocatalytic degradation of MB and their antibacterial efficiencies. Ag@ZnO/MgAC showed excellent photocatalytic MB degradation with a performance of 98.56% after 80 min of visible-light irradiation and good antibacterial activity against Salmonella (...
    • Insight into the Influence of Analyte Molecular Structure Targeted on MoS2-GO-Coated Electrochemical Nanosensors
    Authors: Tuyet, Nhung Pham; Dinh, Ngo Xuan; Tuan, Hoang Van; Vinh Le Khanh; Tung Le Minh; Van Quy Nguyen; Dinh Lam Vu; Anh Tuan Le;  Advisor: -;  Co-Author: - (2021)

    MoS2-GO composites were fabricated by an ultrasonication method at room temperature. Raman spectra, emission scanning electron microscopy (SEM), and transmission electron microscopy (TEM) images were used to study the structural characteristics, morphologies, and sizes of the synthesized materials. An MoS2-GO/SPE (screen-printed electrode) was prepared by a facile dropping method and acted as an effective electrochemical sensor toward clenbuterol (CLB) and 4-nitrophenol (4-NP) detection. Based on the obtained results, the influence of analyte molecular structure on the adsorption ability and electronic interoperability between the targeted analyte and electrode surface were investigat...