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Anisuzzaman, S. M., Joseph, Collin G., Ashri Bin Wan Daud, Wan Mohd, Krishnaiah, Duduku, Yee, Ho Sie. (1393). Preparation and characterization of activated carbon from Typha orientalis leaves. نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 6(1), 9-21. doi: https://doi.org/10.1007/s40090-014-0027-3
S. M. Anisuzzaman; Collin G. Joseph; Wan Mohd Ashri Bin Wan Daud; Duduku Krishnaiah; Ho Sie Yee. "Preparation and characterization of activated carbon from Typha orientalis leaves". نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 6, 1, 1393, 9-21. doi: https://doi.org/10.1007/s40090-014-0027-3
Anisuzzaman, S. M., Joseph, Collin G., Ashri Bin Wan Daud, Wan Mohd, Krishnaiah, Duduku, Yee, Ho Sie. (1393). 'Preparation and characterization of activated carbon from Typha orientalis leaves', نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 6(1), pp. 9-21. doi: https://doi.org/10.1007/s40090-014-0027-3
Anisuzzaman, S. M., Joseph, Collin G., Ashri Bin Wan Daud, Wan Mohd, Krishnaiah, Duduku, Yee, Ho Sie. Preparation and characterization of activated carbon from Typha orientalis leaves. نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 1393; 6(1): 9-21. doi: https://doi.org/10.1007/s40090-014-0027-3

Preparation and characterization of activated carbon from Typha orientalis leaves

International Journal of Industrial Chemistry
دوره 6، شماره 1، خرداد 2015، صفحه 9-21
نوع مقاله: research article
شناسه دیجیتال (DOI): https://doi.org/10.1007/s40090-014-0027-3
نویسندگان
S. M. Anisuzzaman* 1؛ Collin G. Joseph2؛ Wan Mohd Ashri Bin Wan Daud3؛ Duduku Krishnaiah4؛ Ho Sie Yee2
1Chemical Engineering Programme, Faculty of Engineering, Universiti Malaysia Sabah, 88400, Kota Kinabalu, Sabah, Malaysia
2Water Research Unit, Faculty of Science and Natural Resources, Universiti Malaysia Sabah, 88400, Kota Kinabalu, Sabah, Malaysia
3Department of Chemical Engineering, Faculty of Engineering Building, University of Malaya, 50603, Kuala Lumpur, Malaysia
4Chemical Engineering Programme, School of Engineering and Information Technology, Universiti Malaysia Sabah, Kota Kinabalu, Sabah, 88400, Malaysia
چکیده
Background
In this study, activated carbon (AC) was prepared from Typha orientalis or commonly known as cattail leaves using physical and chemical activation phosphoric acid (H3PO4), as dehydrating agent. A two-stage process was used, i.e., semi-carbonization stage at 200 °C for 15 min as first stage followed by second stage activation, at 500 °C for 45 min. The precursor material with the impregnated agent was exposed straight away to semi-carbonization and activation temperature using a laboratory scale muffle furnace (Carbolite RHF 1500, England) under static condition in a self-generated atmosphere.
Results
The best condition in AC production was based on chemical activation which is AC2 with 2 M of H3PO4. AC2 has the highest removal efficiency, 97.4 % in 4 ppm concentration of Pb(II) and percentage yield of 62.73 % could be reached. The pH of the AC was controlled in the range 5–6. From Fourier transform infrared spectroscopy, functional groups such as hydroxyl group, lactone group, and carboxyl group were obtained. These were clearly illustrated by scanning electron microscopy micrographs that porous structure was progressively developed with sponge-like structure.
Conclusions
The Pb(II) adsorption results were best fitted in the Langmuir isotherm for equilibrium data while the adsorption kinetic fitted to the pseudo-second order model. The maximum Brunauer, Emmett and Teller surface area of the best produced AC was found to be around 1,238 m2/g. The maximum adsorption capacity was found to be 7.95 mg/g.
کلیدواژه‌ها
Activated carbon؛ Typha orientalis leaves؛ Adsorption؛ Isotherm؛ Kinetics
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تعداد مشاهده مقاله: 24


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