57 cm g and 215 nm respectively the functional groups

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Unformatted text preview: therm, with a maximum monolayer adsorption capacity (q max) of 346.02 mg/g. The applicability of two kinetic models, the pseudo -first-order and pseudo-second-order models, for describing the data was studied and the adsorption kinetics were found to follow the pseudo -second2 order model with correlation coefficients (R ) equal to 0.999 for all concentrations of 2CP. Oil palm shell activated carbon was shown to be a capable adsorbent for removing 92.2 7 % of 30 mg/L of 2CP from aqueous solutions at 30 °C. 97 23rd-25th June 2010 3rd ICYC 2010 Universiti Sains Malaysia ENV-O21 STUDIES ON POTENTIAL APPLICATION OF MANGROVE BARKS FOR THE REMOVAL OF Cu(II) FROM ELECTROPLATING WASTEWATER Rozaini Che Amat and *Jain Kassim School of Chemical Sciences, Universiti Sains Malaysia, 11800 Pulau Pinang, Malaysia E-mail: mjain@usm.my Rhizophora apiculata mangrove barks were used as an adsorbent to remove Cu(II) from synthetic water and electroplating wastewater. Effect of pH, contact time, initial metal ion concentration, and temperature were investigated. Adsorption isotherm showed that modified Rhizophora apiculata barks -1 -1 has monolayer adsorption capacity of 5.8 mg g and 3.19 mg g for base and acid modification, respectively. The binding of heavy metal ions was found to be pH dependent with the optimal sorption occurring at pH 5. Kinetics study revealed that the sorption was rapidly established in about 30 min and follows pseudo-second-order kinetic reaction. The Freundlich adsorption isotherm models were well fitted to equilibrium adsorption data. Thermodynamic parameters showed that the adsorption of Cu(II) onto Rhizophora apiculata barks were spontaneous and exothermic under studied conditions. Al l the results showed that Rhizophora apiculata barks has potential for Cu(II) removal from aqueous solution. ENV-O22 IMMOBILLIZED TIO2/AC HYBRID BILAYER SYSTEM FOR THE REMOVAL OF PHENOL VIA SYNERGISTIC PHOTOCATALYTIC-ADSORPTIVE PROCESSES Noor Nazihah Bahrudin and Mohd Asri Nawi School of Chemical Sciences, Universiti Sains Malaysia, 11800 Pulau Pinang, Malaysia E-mail: masri@usm.my Immobilized layer by layer...
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This note was uploaded on 02/17/2011 for the course CHEMISTRY 101 taught by Professor Csr during the Spring '11 term at University of Louisville.

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