%0 Journal Article
%T Hexavalent Chromium Cr (VI) Removal from Water by Mango Kernel Powder
%A Amadou Sarr Gning
%A Cheikh Gaye
%A Antoine Blaise Kama
%A Pape Abdoulaye Diaw
%A Di¨¨ne Di¨¦gane Thiare
%A Modou Fall
%J Journal of Materials Science and Chemical Engineering
%P 84-103
%@ 2327-6053
%D 2024
%I Scientific Research Publishing
%R 10.4236/msce.2024.121007
%X Metal trace elements (MTE) are among the most harmful micropollutants of natural waters. Eliminating them helps improve the quality and safety of drinking water and protect human health. In this work, we used mango kernel powder (MKP) as bioadsorbent material for removal of Cr (VI) from water. Uv-visible spectroscopy was used to monitor and quantify Cr (VI) during processing using the Beer-Lambert formula. Some parameters such as pH, mango powder, mass and contact time were optimized to determine adsorption capacity and chromium removal rate. Adsorption kinetics, equilibrium, isotherms and thermodynamic parameters such as ¦¤<em>G</em><span style=\"white-space:nowrap;\">&amp;#730;</span>, ¦¤<em>H</em><span style=\"white-space:nowrap;\">&amp;#730;</span>, and ¦¤<em>S</em><span style=\"white-space:nowrap;\">&amp;#730;</span>, as well as FTIR were studied to better understand the Cr (VI) removal process by MKP. The adsorption capacity reached 94.87 mg/g, for an optimal contact time of 30 min at 298 K. The obtained results are in accordance with a pseudo-second order Freundlich adsorption isotherm model. Finally FTIR was used to monitor the evolution of absorption bands, while <em>Scanning Electron Microscopy</em> (<em>SEM</em>) and Energy Dispersive X-ray Spectroscopy (EDS) were used to evaluate surface properties and morphology of the adsorbent.
%K Adsorption
%K Chromium
%K Mango Kernel Powder
%K Spectroscopy Analysis
%K Water Treatment
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=130898