International Science Community Association Research Journal of Chemical Sciences 2231 - 606X 3 5 2013 May 18 Effects of Activating Agents on the Activated Carbons Prepared from Lapsi Seed Stone 19 24 EN Markmanuel D. 1 Department of Chemistry, Bayelsa State College of Education, Okpoma, Brass Island, Bayelsa State, NIGERIA TarawouT. 2 Department of Chemical Sciences, Niger Delta University, Wilberforce Island, PMB 071, Yenagoa, Bayelsa State, NIGERIA HorsfallM. jnr. 3 Department of Pure and Industrial Chemistry, University of Port-Harcourt, P.O. Box 402, Choba, Port- Harcourt, NIGERIA Das Bakul 1 Satish Dhawan Space Centre, Sriharikota, Nellore, AP, INDIA Reddy T.V.Ramana 2 Vikrama Simhapuri University, Nellore, AP, INDIA Balaji MTK 3 Reddy T.Veera 4 Yehouenou E.A.P. 1 Laboratoire de Recherche en Biologie Appliquée (LARBA) Adamou R. 2 Département de Génie de l’Environnement, Ecole Polytechnique d’Abomey-Calavi (EPAC), Université d’Abomey-Calavi (UAC), 01 BP 526, Cotonou, BENIN Département de Génie de l’Environnement, Ecole Polytechnique d’Abomey-Calavi (EPAC), Université d’Abomey-Calavi (UAC), 01 BP 2009, Cotonou, BENIN Azehoun P.J. 3 Institut National de recherches Agricoles du Bénin, 07 BP 265 Cotonou, BENIN Edorh P.A. 4 Département de Biochimie et de Biologie Cellulaire, Faculté des Sciences et Technique (FAST) Université d’Abomey-Calavi, 01 BP 526 Cotonou, BENIN Ahoyo T. 5 Joshi Sahira 1 Institute of Engineering, Tribhuvan University, Lalitpur, NEPAL Adhikari Mandira 2 Department of Chemistry, Bhaktapur Multiple College Tribhuvan University, Bhaktapur, NEPAL Central Pokharel BhadraPrasad 3 Department of Chemistry, Tribhuvan University, Kathmandu, NEPAL Pradhananga RajaRam 4 > Research Paper 2013 3 11 2013 May 18 Activated carbon has been known as an excellent adsorbent and is widely used due to its large adsorption capacity. Activating agents influence surface area and porosity of the activated carbon produced. In this study,a series ofactivated carbons were prepared from Lapsi seed stone by chemical activation using different activating agents KOH, HSO, FeCl, MgCl, and CaCl. The Iodine number and maximum adsorption capacity (q) for methylene blue were determined. Surface functional groups were analyzed by Fourier Transform Infra Red Spectroscopy (FT-IR).Surface morphology was characterized by scanning electron microscope (SEM). The SEM micrographs revealed that the activated carbons were found to be mainly microporous and mesoporous. Among the different activated carbons, the one prepared by using KOH shows highest adsorption capacity for methylene blue and high Iodine. Copyright@ International Science Community Association