American Journal of Physical Chemistry

Volume 9, Issue 3, September 2020

  • Study of the Adsorption of Methylene Blue and Tartrazine in Aqueous Solution by Local Materials of Cameroonian Origin

    Djakba Raphaël, Harouna Massaï, Wangmene Bagamla, Bouba Talami

    Issue: Volume 9, Issue 3, September 2020
    Pages: 45-51
    Received: Jul. 12, 2020
    Accepted: Jul. 27, 2020
    Published: Aug. 17, 2020
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    Abstract: The present work concerns the study of the adsorption of methylene blue (MB) and tartrazine (TAR) in aqueous solution by the raw clay (AB) and bridged clay (AP) of "Boboyo". Studies show that the adsorption of these two dyes on both adsorbents is very fast. The adsorption equilibrium time is 25 minutes for AB for both adsorbates and 15 and 30 minut... Show More
  • Dynamics of Different Sulfur Forms in Natural Waters and Their Influence on the Redox State

    Gheorghe Duca, Vladislav Blonschi, Viorica Gladchi, Sergey Travin

    Issue: Volume 9, Issue 3, September 2020
    Pages: 52-61
    Received: Jul. 16, 2020
    Accepted: Jul. 31, 2020
    Published: Aug. 19, 2020
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    Abstract: Sulfur-containing substances with reducing properties in natural water bodies are partners in the reactions with active oxygen forms (ROS) and so are their specific antipodes. The ratio of counterflows of an oxidizer and a reducing agent sets the redox potential of the aquatic environment, is responsible for its self-purification and ultimately for... Show More
  • The Photochemistry of Gas Molecules in Earth’s Atmosphere Determines the Structure of the Atmosphere and the Average Temperature at Earth’s Surface

    Peter Langdon Ward

    Issue: Volume 9, Issue 3, September 2020
    Pages: 62-85
    Received: Jul. 23, 2020
    Accepted: Aug. 03, 2020
    Published: Aug. 19, 2020
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    Abstract: A molecule of oxygen absorbing solar ultraviolet-C radiation is photo-dissociated into two atoms of oxygen that fly apart at high velocity, converting kinetic energy of oscillation of the molecular bond directly and completely into kinetic energy of linear motion of the oxygen atoms. This increases air temperature. Two oxygen atoms can then collide... Show More