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- Title
Adsorption of Vanillin using Macroporous Resin H103.
- Authors
Samah, Rozaimi Abu; Zainol, Norazwina; Yee, Phang Lai; Pawing, Christine Michael; Abd-Aziz, Suraini
- Abstract
Six resins (Amberlite XAD-16, Amberlite XAD-2, Sepabeads SP207, DIAION HP-20, DM11 and H103) were tested for vanillin adsorption in aqueous solution. All of the resins gave more than 95% adsorption rate except for Amberlite XAD-2 and DM11. Resin H103 was selected for the subsequent work due to its high adsorption capacity and low cost. A kinetic analysis revealed that the adsorption process followed pseudo-second-order kinetic model and occurred rapidly. The equilibrium point was reached after 90 minutes of reaction. Adsorption isotherm was also determined at 25 °C and it was fitted to Langmuir and Freundlich equations using linear regression and non-linear regression (sum of squares) methods. The regression shows that the adsorption of vanillin onto resin H103 followed Langmuir model (R2 = 0.9984) with a maximum capacity of 73.015 mg/g.
- Subjects
ADSORPTION (Chemistry); VANILLIN; GUMS &; resins; POROUS materials; AQUEOUS solutions; CHEMICAL kinetics
- Publication
Adsorption Science & Technology, 2013, Vol 31, Issue 7, p599
- ISSN
0263-6174
- Publication type
Article
- DOI
10.1260/0263-6174.31.7.599