Science Journal of Chemistry

Volume 10, Issue 4, August 2022

  • Adsorptive Behaviour of a Nigerian Natural Clay for the Removal of Lead and Cadmium from Aqueous Solutions

    Aminu Koko Rabiu, Murtala Maidamma Ambursa, Yakubu Yahaya, Faruk Umar Maiahu, Farooq Abubakar Atiku

    Issue: Volume 10, Issue 4, August 2022
    Pages: 93-102
    Received: Jun. 13, 2022
    Accepted: Jun. 29, 2022
    Published: Jul. 12, 2022
    DOI: 10.11648/j.sjc.20221004.11
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    Abstract: The occurrence of heavy metals in water constitute a major threat to both humans and aquatic animals. The current research work investigated the adsorptive behavior of a natural clay obtained from Goronyo Local Government, Sokoto state, Nigeria for Pb(II) and Cd(II) ions removal from aqueous solution. The clay sample was characterized using differe... Show More
  • Stability and Absorption of Fourteen Manzamenones, Artemisinin and Quinine Isolated and Complexed with H2O, Alanine by ONIOM, DFT and TD-DFT Methods

    Atse Adepo Jacques, Diomande Sekou, Kone Soleymane, Bamba El-Hadji Sawaliho

    Issue: Volume 10, Issue 4, August 2022
    Pages: 103-115
    Received: Jun. 16, 2022
    Accepted: Jul. 01, 2022
    Published: Jul. 12, 2022
    DOI: 10.11648/j.sjc.20221004.12
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    Abstract: This work is carried out on fourteen Manzamenones and two antimalarials (Quinine and Artemisinin). It was undertaken to compare their reactivity parameters on one hand and on the other hand, the absorption properties in the UV range for the isolated molecules and two types of complexes studied. Manzamenones are an atypical class of fatty acids. The... Show More
  • Research Progress Trend of Water-Soluble Lubricating Additives

    Yifang Liu, Xinnan Zhao

    Issue: Volume 10, Issue 4, August 2022
    Pages: 116-119
    Received: Jul. 03, 2022
    Accepted: Jul. 18, 2022
    Published: Jul. 26, 2022
    DOI: 10.11648/j.sjc.20221004.13
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    Abstract: In the field of industrial lubrication, water-soluble lubricant additives determine the performance of water-based lubrication system. In recent years, some new water-based lubricant additives with special structure and composition show excellent performance and broad application prospects. Research and development of high-performance water-soluble... Show More
  • Assay of Total Polyphenols, Flavonoids, and Proanthocyanidins and Determination of the Antioxidant Activity of Different Extracts of Merremia tridentata Leaves

    Papa Biram Sy, Aissatou Alioune Gaye, Alioune Fall

    Issue: Volume 10, Issue 4, August 2022
    Pages: 120-125
    Received: Aug. 03, 2022
    Accepted: Aug. 18, 2022
    Published: Aug. 29, 2022
    DOI: 10.11648/j.sjc.20221004.14
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    Abstract: The aqueous and organic solvent extracts of Merremia tridentata leaves are studied. Extraction conditions are optimized: an extraction time of 20 minutes, a temperature of 80°C and a plant material/water mixture of 1% give the best yield of polyphenol. The amount of polyphenols, flavonoids, and proanthocyanins of each organic solvent extract was in... Show More
  • Ficus Sycomorus L. Extracts: Phytochemical Screening, Total Polyphenols and Flavonoids Contents, Antioxidant and Antibacterial Activity

    Abba Diarra Kone, Bedie Mbow, Aissatou Alioune Gaye, Samba Fama Ndoye, Mohamed Gaye

    Issue: Volume 10, Issue 4, August 2022
    Pages: 126-132
    Received: Aug. 10, 2022
    Accepted: Aug. 25, 2022
    Published: Aug. 31, 2022
    DOI: 10.11648/j.sjc.20221004.15
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    Abstract: Ficus Sycomorus L. is a plant widely used in Senegal by traditional healers for the management of certain pathologies such as stomach aches or skin rashes. The objective of our work is to determine the contents of total polyphenols and flavonoids of the methanolic extracts of the different organs of Ficus Sycomorus L. Subsequently, the antioxidant ... Show More