Adsorption of 2-N aphthol from Aqueous Solutions on Amberlite XAD-4
2-naphthol is a hazardous chemical and its exposure is possible in our routine life. To minimize the effects of its exposure, its adsorption on suitable adsorbents is necessary. In this work, batch equilibrium studies have been conducted to remove the pollutant from aqueous solutions onto Amber l...
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| Main Author: | |
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| Format: | Monograph |
| Language: | English |
| Published: |
PPSP, Universiti Sains Malaysia
2007
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| Subjects: | |
| Online Access: | http://eprints.usm.my/50139/1/CHEO%20YOKE%20YEONG%20-24%20pages.pdf http://eprints.usm.my/50139/ |
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| Summary: | 2-naphthol is a hazardous chemical and its exposure is possible in our routine life. To
minimize the effects of its exposure, its adsorption on suitable adsorbents is necessary. In this
work, batch equilibrium studies have been conducted to remove the pollutant from aqueous
solutions onto Amber lite XAD-4 resin. The effect of pH (2, 4, 6 and 8), shaking time (15, 30,
45 and 60 min), the concentration of substance (0.00 10, 0.0015, 0.0020, 0.0025, 0.0030 M)
and the amount of adsorbent (0.5, 1.0 and 1.5 g) on percent adsorption of 2-naphthol has been
investigated. The concentration of 2-naphthol has been monitored on a UV-visible
spectrophotometer at 273 nm detection. From the experiment, the optimized condition for
adsorption of 2-naphthol onto Amberlite XAD-4 are pH (2), agitation time (60 min),
concentration (0.00 I OM) and amount of adsorbent ( 1.5 g). The data also fits to the sorption
dynamic module (Lagergren equation and Morris-Weber equation) and sorption isotherm
module (Freundlich isotherm, Langmuir isotherm, and Dubinin-Radushkevich (D-R)
isotherm). |
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