Journal of Thermodynamics & Catalysis
Open Access

Department of Chemistry, Addis Ababa University, Addis Ababa, Ethiopia

Publications

• Research Article   
  Water Hyacinth Leaf Protein Concentrate Composites for Removal of Hexavalent Chromium
  Author(s): Asmamaw Taye*, Alemayehu Yifru, Solomon Mehretie, Negash Getachew and Shimelis Admassie
  
  Water Hyacinth Leaf Protein Concentrate/Graphene Oxide/Chitosan/Polyvinyl Alcohol (WHLPC/GO/CS/PVA) composite was synthesized for the removal of Cr (VI) from wastewater. About 80% of the prepared composite material constitutes WHLPC which is extracted from water hyacinth plant leaf. The prepared material was characterized by FT-IR and XRD. The process variables such as pH, contact time, dosage, initial Cr (VI) concentration and temperature were optimized using a batch mode experiment. Kinetic studies were conducted using pseudo-first-order and pseudo-second-order models and it was observed that the chemosorptive pseudo-second-order model described the adsorption system in a better way, with a high value of R2. The highest adsorption capacity of 171.22 mg/g was achieved at pH 1.0 and equilibrium was achieved within 330 min. Langmuir and Freundlich isotherm models were analyz.. View More»
  DOI: 10.32548/2157-7544.23.14.337

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