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dc.contributor.authorShikuku, Victor
dc.contributor.authorKimosop, Selly Jemutai
dc.date.accessioned2021-12-31T08:08:24Z
dc.date.available2021-12-31T08:08:24Z
dc.date.issued2020-08
dc.identifier.govdochttps://doi.org/10.17159/0379-4350/2020/v73a16
dc.identifier.ismnhttps://www.researchgate.net/publication/343995457_Efficient_Removal_of_Sulfamethoxazole_onto_Sugarcane_Bagasse-derived_Biochar_Two_and_Three-parameter_Isotherms_Kinetics_and_Thermodynamics
dc.identifier.urihttp://ir-library.mmust.ac.ke:8080/xmlui/handle/123456789/1920
dc.description.abstractIn this work, bagasse, an agricultural waste was used for the development of environmentally benign biochar (CBG) and the thermal pyrolysis product applied for adsorption of sulfamethoxazole (SMX) from water using a batch technique. The pseudo-first-order model best described the adsorption kinetics. Equilibrium adsorption data were modelled using six two-parameter and five three-parameter isotherm equations and the best-fitting models obtained using five error functions. The Sips isotherm best predicted the equilibrium data with an estimated adsorption capacity of 128.8 mg g-1. Error analysis showed that three-parameter isotherms best explained the experimental data. The thermodynamic functions, viz. enthalpy (ÄH =-24.72 kJ mol-1), Gibbs free energy (ÄG =-15.67 kJ mol-1), entropy (ÄS = 32.65 kJ mol-1), showed that the reaction is spontaneous and exothermic. The mechanism of adsorption involved charge-assisted hydrogen bonding (-)CAHB. The amount of CBG required for the removal of 99 % of SMX in a given volume of effluent was predicted. The results attest that CBG is an effective low-cost adsorbent for SMX adsorption.en_US
dc.language.isoenen_US
dc.publisherSouth African journal of chemistryen_US
dc.subjectEfficient, Removal,Sulfamethoxazole, Sugarcane, Bagasse-derived, Biochar, Two,Three-parameter, Isotherms, Kinetics, Thermodynamicsen_US
dc.titleEfficient Removal of Sulfamethoxazole onto Sugarcane Bagasse-derived Biochar: Two and Three-parameter Isotherms, Kinetics and Thermodynamicsen_US
dc.typeArticleen_US


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