Der Pharma Chemica
Journal for Medicinal Chemistry, Pharmaceutical Chemistry, Pharmaceutical Sciences and Computational Chemistry
ISSN: 0975-413X
Eze S. Ifeanyi
Department of Pure and Industrial Chemistry, University of Nigeria, Nsukka, NigeriaPublications
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Research Article
Chromium Adsorption Using Modified Locust Bean and Maize Husk
Author(s): Ugwoke O. Chijioke, Dauda Benjamin, Ezugwu A. James, Abugu H. Onyeka*, Alum L. Ogechi, Eze S. Ifeanyi and Odewole O. Abiola
Carbon-based adsorbent from the hardwood of locust bean and maize husks were assessed for their potential in reducing Cr6+ ions in contaminated industrial effluent waters. Two samples of activated carbon (AC) were successfully prepared by a simultaneous two step carbonization and activation processes using maize husk (Zea mays) and locust bean (Entada africana). Chemical activation was achieved by first impregnating the prepared raw materials with 60 %(v/v) and 80 %(v/v) H3PO4 acid and thereafter subjected to carbonization at 550 oC and 950 oC for a period of 1½ hr and 4 hr, respectively. The ACs were characterized and isotherm plot was produced for the adsorption of methylene blue (MB) from which the adsorption capacity was calculated. The effect of pH, adsorbent dosage and time were studied. The results showed large surface area (115.69 to 143.74 m2/g), as suggested by the SE.. Read More»
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