Decontamination of Pb2+, Cd2+ and Ni2+ Polluted Water by Adsorption Unto Butterfly Pea (Centrosema pubescens) Seed Pod

Communication in Physical Sciences

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Title Decontamination of Pb2+, Cd2+ and Ni2+ Polluted Water by Adsorption Unto Butterfly Pea (Centrosema pubescens) Seed Pod
Creator Okoche K. Amadi
Uloma O. Akoh
Innocent A. Okoro
Egwuobasi Nwabuokechi
Subject Contamination
heavy metals
butterfly peas pod
Description Communication in Physical Sciences 2020, 6(1): 774-782
Authors: Okoche K. Amadi*, Uloma O. Akoh, Innocent A. Okoro & Egwuobasi Nwabuokechi
Received 18 November 2020/Accepted 26 November 2020
Heavy metal contaminations of water bodies by industrial and other wastes have been confirmed to exert a significant role in the environment because of expanding risk factor such contamination can cause. In this study, the batch adsorption method is adopted to removed Pb2+, Cd2+ and Ni2+ from an aqueous solution using a butterfly pea pod. The adsorption data reflected the strong dependency of the adsorption on temperature, adsorbent dosage, initial metal ion concentration, a period of contact, and other factors. The adsorption of the three metal ions proceeded through a similar mechanism (i.e. physical adsorption) and the trend was supported by maximum adsorption capacity values (which were Pb(II), Cd(II) and Ni(II) ions was 10.52, 18.32, and 13.18 mg/g),  free energy change data and sticking probability parameters. The adsorption was spontaneous and best fitted Langmuir, Flory Huggins, Freundlich, and Dubinin-radushkevich adsorption models. Results of the present investigation revealed that butterfly pea pot is an excellent adsorbent for lead, cadmium, and nickel ions.  
Publisher University Of Nigeria Nsukka
Date 2020-11-27
Type info:eu-repo/semantics/article
Format application/pdf
Source Communication in Physical Sciences; Vol. 6 No. 1 (2020): VOLUME 6(ISSUE 1)
Language eng
Rights Copyright (c) 2010 The Journal and the author

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