Abstract
Nanoporous activated carbon materials were prepared from abundantly available Ipomoea Carnea stem waste. A series of five Nanoporous carbon samples were prepared by subjecting the carbon material to various chemical processes. The physico-chemical properties and adsorption capacities were compared. The adsorption capacity of selected derived carbon sample using Ipomoea Carnea stem waste prepared by Dolomite process was much greater than the capacities of the other carbons prepared by various processes viz., Acid process, ZnCl 2 process, Sulphate process and Carbonate process. The influence of surface area and porosity of the carbon samples on dye removal was analysed. The effects and influence of pKa values of dyes and isoelectricpoint (pH zpc ) of Nanoporous carbon materials were broadly studied and interpreted with dye adsorption onto Nanoporous carbon material. The results reveal that the prepared activated carbon could be employed as a lowcost alternative for removing toxic and carcinogenic dyes from the textile industrial waste water.
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