Ayanfejesu Heritage Odebunmi , Misbaudeen Abdul-Hammed , Olugbenga Solomon Bello
{"title":"Amodiaquine sequestration using cocoa pod based activated carbon","authors":"Ayanfejesu Heritage Odebunmi , Misbaudeen Abdul-Hammed , Olugbenga Solomon Bello","doi":"10.1016/j.cdc.2024.101178","DOIUrl":null,"url":null,"abstract":"<div><div>Cocoa pod-activated carbon (CPAC) was used as adsorbent for the removal of amodiaquine from aqueous solution in this study. Orthophosphoric acid (H<sub>3</sub>PO<sub>4</sub>) was used to modify the raw cocoa pod (RCP) to enhance its adsorptive properties. It was observed that the adsorption data was best described by the Langmuir isotherm having a q<sub>m</sub> value of 321.33 mgg<sup>-1</sup>. Pseudo Second Order (PSO) best fitted the adsorption data with R<sup>2</sup> tending towards 1, with a low SSE value and high agreement between q<sub>e, cal</sub> and q<sub>e, exp</sub> values. Thermodynamic study gave negative value of ΔG<sup>o,</sup> positive value of ΔH<sup>o</sup> and E<sub>a</sub> value which is greater than 80 kJ mol<sup>−1</sup> , this confirms that the interaction is chemisorption in nature. Cost analysis shows that CPAC was about eight times cheaper than the commercial activated carbon (CAC). CPAC is a viable and affordable option for AMO removal from the wastewater</div></div>","PeriodicalId":269,"journal":{"name":"Chemical Data Collections","volume":"55 ","pages":"Article 101178"},"PeriodicalIF":2.2180,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemical Data Collections","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2405830024000661","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"Chemistry","Score":null,"Total":0}
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Abstract
Cocoa pod-activated carbon (CPAC) was used as adsorbent for the removal of amodiaquine from aqueous solution in this study. Orthophosphoric acid (H3PO4) was used to modify the raw cocoa pod (RCP) to enhance its adsorptive properties. It was observed that the adsorption data was best described by the Langmuir isotherm having a qm value of 321.33 mgg-1. Pseudo Second Order (PSO) best fitted the adsorption data with R2 tending towards 1, with a low SSE value and high agreement between qe, cal and qe, exp values. Thermodynamic study gave negative value of ΔGo, positive value of ΔHo and Ea value which is greater than 80 kJ mol−1 , this confirms that the interaction is chemisorption in nature. Cost analysis shows that CPAC was about eight times cheaper than the commercial activated carbon (CAC). CPAC is a viable and affordable option for AMO removal from the wastewater
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