Poster OER - Ngành Công nghệ kỹ thuật hóa học

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https://oerrepository.ntt.edu.vn/handle/298300331/416

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Đang duyệt Poster OER - Ngành Công nghệ kỹ thuật hóa học theo Tác giả

Đang hiển thị 1 - 2 trong tổng số 2
  • Hình ảnh thu nhỏ
    Tài liệu
    Synthesis Of Silver Nanoparticles Using Essential Oils And Preliminrary Examination Of Its Antibacterial Acitivity
    (Nguyen Tat Thanh University, Faculty Of Enviromental And Food Engineering, 2024) Phan, Nguyen Yen Nhi; Trieu, Quoc An
    In this study, silver nanoparticles (AgNPs) were synthesized green chemically from diluted acetone essential oil. The influencing parameters when synthesizing such as the effect of essential oils, the effect of pH, the effect of the concentration of the essential oil, the effect of the concentration of silver nitrate, the effect of temperature, the antibacterial ability. Structural features of biosynthesized AgNPs were determined by color observation, methods such as UV-Vis absorption spectroscopy, Dynamic Light Scattering and Transmission Electron Microscopy, which showed the spherical shape of AgNPs with the size of 28 – 80 nm. In addition, there is antibacterial activity of the suspension system of AgNPs as against gram-negative and gram-positive bacteria such as Staphylococcus Aureus (S.aureus), E.coli, Bacillus cereus.
  • Hình ảnh thu nhỏ
    Tài liệu
    The Adsorptive Treatment Of Methylene Blue From Aqueous Solution By Spent Coffee Grounds
    (Faculty Of Environmental And Food Engineering, Nguyen Tat Thanh University, 2024) Nguyen, Dinh Huy; Trieu, Quoc An
    The results obtained from using SCG as an adsorbent for the methylene blue (MB) adsorption were evaluated through the following investigations. The experiment investigating the stirring time found that the stirring time for adsorption to equilibrium was 150 min. Maximum adsorption capacity was 63.29 mg/g. The adsorption process followed the Langmuir isothermal adsorption. MB could be desorbed by adjusting the pH to 2.