Kinetic and isotherm study of Malachite green dye removal using Imperata Cylindrica
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Universiti Malaysia Perlis (UniMAP)
2021
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my.unimap-738712022-01-27T08:30:29Z Kinetic and isotherm study of Malachite green dye removal using Imperata Cylindrica Liew, Onn Kei Anis Atikah, Ahmad School of Bioprocess Engineering Wastewater treatment Dyes Imperata Cylindrica (cogon grass) Adsorbent Isotherm study Malachite Green Access is limited to UniMAP community. This research encompasses on the adsorption of MG dye from waste water by using Imperata cylindrica (cogon grass) as a low cost adsorbent as compared to chemical adsorbents. Apart from, coagulation and membrane filtration, MG dye is found to be easily extracted from waste water by adsorption. Batch adsorption on cogon grass as a function of various parameters such as solution pH (4-8), initial dye concentration (20-120 mg/L) and adsorbent dosage (0.1-0.5 g) was studied. Cogon grass leaf-based adsorbent was found effective in MG dye removal where the maximum sorption capacity found to be 30.67 mg/g and the maximum percentage removal was 96.03 %. The optimum condition for the adsorption to occur were at pH 8 with adsorption capacity 29.36 mg/g, 50 mg/L of initial MG dye concentration with adsorption capacity 29.45 mg/g and 0.3 g adsorbent dosage with 27.73 mg/g. The rates of adsorption were found well fitted to pseudo-second order model which has higher-correlation coefficient than pseudo-first order, while equilibrium studies revealed that the adsorption process follow the Langmuir isotherm. The cogon grass leaf-based adsorbent were characterized by scanning electron microscopy (SEM) and Fourier transform infrared (FT-IR) spectroscopy. SEM images of cogon grass indicate that it has porous and rough surface that provide micropores for adsorption process occurred. FTIR analysis was showed that formation of chemical bond between functional groups present on cogon grass and MG. Hence, cogon grass leaf powder has a potential to be developed as low cost adsorbent for the removal of the MG dye. 2021 2022-01-27T08:30:29Z 2022-01-27T08:30:29Z 2017-06 Learning Object http://dspace.unimap.edu.my:80/xmlui/handle/123456789/73871 en Universiti Malaysia Perlis (UniMAP) |
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Universiti Malaysia Perlis |
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English |
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Wastewater treatment Dyes Imperata Cylindrica (cogon grass) Adsorbent Isotherm study Malachite Green |
| spellingShingle |
Wastewater treatment Dyes Imperata Cylindrica (cogon grass) Adsorbent Isotherm study Malachite Green Liew, Onn Kei Kinetic and isotherm study of Malachite green dye removal using Imperata Cylindrica |
| description |
Access is limited to UniMAP community. |
| author2 |
Anis Atikah, Ahmad |
| author_facet |
Anis Atikah, Ahmad Liew, Onn Kei |
| format |
Learning Object |
| author |
Liew, Onn Kei |
| author_sort |
Liew, Onn Kei |
| title |
Kinetic and isotherm study of Malachite green dye removal using Imperata Cylindrica |
| title_short |
Kinetic and isotherm study of Malachite green dye removal using Imperata Cylindrica |
| title_full |
Kinetic and isotherm study of Malachite green dye removal using Imperata Cylindrica |
| title_fullStr |
Kinetic and isotherm study of Malachite green dye removal using Imperata Cylindrica |
| title_full_unstemmed |
Kinetic and isotherm study of Malachite green dye removal using Imperata Cylindrica |
| title_sort |
kinetic and isotherm study of malachite green dye removal using imperata cylindrica |
| publisher |
Universiti Malaysia Perlis (UniMAP) |
| publishDate |
2021 |
| url |
http://dspace.unimap.edu.my:80/xmlui/handle/123456789/73871 |
| _version_ |
1729704654012416000 |