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Research Paper | Chemistry | Malaysia | Volume 4 Issue 5, May 2015 | Popularity: 6.2 / 10
Adsorption of 4-Chlorophenol onto Optimum Activated Carbon from An Agricultural Waste
Zaharaddeen N. Garba, Afidah Abdul Rahim
Abstract: Potentials of Prosopis africana seed hulls (PASH) were explored by preparing optimal activated carbon (PASH-AC) using sodium acetate as chemical activating agent in order to remove 4-chlorophenol (4CP) from aqueous solution. The isotherm parameters of the process were determined by using Langmuir, Freundlich and Temkin isotherm equations. The kinetic parameters were predicted with Lagergren-s pseudo- rst order and pseudo- second order equations. The PASH-AC was mesoporous with surface area of 1085.92 m2. Langmuir isotherm model was the best fit for the equilibrium data with monolayer adsorption capacity of 347.47 mg/g while pseudo-second-order was the best kinetic model that described the adsorption process. PASH-AC was established to be a good precursor for producing activated carbon that is capable of removing high percentage of 4CP from aqueous solution
Keywords: Prosopis africana seed hulls, optimal activated carbon, Linearized Langmuir equations, 4-chlorophenol, Adsorption
Edition: Volume 4 Issue 5, May 2015
Pages: 1931 - 1936
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