Study on adsorption behavior of Acid Orange 10 onto modified wheat husk
作者： Sushmita Banerjee , Ravindra Kumar Gautam , Amita Jaiswal , Pavan Kumar Gautam , Mahesh Chandra Chattopadhyaya
DOI: 10.1080/19443994.2015.1046151
关键词: Desorption 、 Chemistry 、 Freundlich equation 、 Chromatography 、 Sorption 、 Adsorption 、 Ionic strength 、 Chemical engineering 、 Aqueous solution 、 Husk 、 Mass transfer
摘要: AbstractThe present communication addresses the applicability of acid-modified wheat husk for adsorptive removal an anionic dye, Acid Orange 10 (AO-10) from aqueous solutions. The adsorbent was characterized by FTIR and SEM. adsorption reached equilibrium within 30 min, percentage increased with contact time, dosage, ionic strength. Low pH condition enhances AO-10 sorption. experimental data kinetic study agrees pseudo-second-order model. Detailed investigation indicates that overall sorption rate is governed film diffusion mechanism. behavior followed a Freundlich isotherm high correlation coefficient low χ2 values. maximum capacity found to be 31.25 mg/g. results thermodynamic demonstrated process spontaneous exothermic in nature. Desorption studies revealed could reused two successive trials without...
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