American Journal of Physical Chemistry

Volume 10, Issue 2, June 2021

  • Differential Pulse Voltammetric Determination of Paracetamol Using Activated Glassy Carbon Electrode

    Meselu Eskezia Ayalew, Dereje Yenealem Ayitegeb

    Issue: Volume 10, Issue 2, June 2021
    Pages: 16-24
    Received: Apr. 05, 2021
    Accepted: May 11, 2021
    Published: May 20, 2021
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    Abstract: The electrochemical property of paracetamol was investigated at a glassy carbon electrode and activated glassy carbon electrode. Differential pulse voltammetry and cyclic voltammetry were used as diagnostic techniques in the determination of paracetamol. The activated glassy carbon electrode exhibited excellent electro-catalytic behaviour for the o... Show More
  • Production Entropy and Negentropy

    Mailybi Aldabergenov

    Issue: Volume 10, Issue 2, June 2021
    Pages: 25-30
    Received: Apr. 29, 2021
    Accepted: May 17, 2021
    Published: May 27, 2021
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    Abstract: Chemical reactions in an open system are accompanied by direct and reverse transformations of components. In this case, irreversible processes are characterized by production of entropy of both direct and reverse transformations. Negentropy is production of the entropy of the reverse transformation. According to the second law of thermodynamics, pr... Show More
  • Characterization of Ethyl Violet Adsorption on Used Black Tea Leaves from Aquatic Environment: Kinetic, Isotherm and Thermodynamic Studies

    Rasel Ahmed, Santa Islam, Mohammad Abul Hossain

    Issue: Volume 10, Issue 2, June 2021
    Pages: 31-40
    Received: May 28, 2021
    Accepted: Jun. 15, 2021
    Published: Jun. 23, 2021
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    Abstract: Ethyl violet (EV) is one of the common pollutants in industrial wastewaters. This study presents the kinetic, isotherm and thermodynamic characterization of the adsorptive removal of EV from aqueous solution by used black tea leaves (UBTL) as a low cost adsorbent. Batch adsorption experiments were performed to investigate the effects of initial dye... Show More