Methylene blue adsorption on graphene oxide
In this study, graphene oxide (GO), produced using the simple Hummer’s method, was used as adsorbent to remove methylene blue (MB) from aqueous solution. Characterizations using transmission electron microscope (TEM) and Fourier transform infrared (FTIR) spectroscopy were carried out on the GO bef...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Penerbit Universiti Kebangsaan Malaysia
2013
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| Online Access: | http://psasir.upm.edu.my/id/eprint/30057/1/Methylene%20blue%20adsorption%20on%20graphene%20oxide.pdf |
| _version_ | 1825947632075276288 |
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| author | Chia, Chin Hua Razali, Nur Fazlinda Sajab, Mohd Shaiful Zakaria, Sarani Huang, Nay Ming Lim, Hong Ngee |
| author_facet | Chia, Chin Hua Razali, Nur Fazlinda Sajab, Mohd Shaiful Zakaria, Sarani Huang, Nay Ming Lim, Hong Ngee |
| author_sort | Chia, Chin Hua |
| collection | UPM |
| description | In this study, graphene oxide (GO), produced using the simple Hummer’s method, was used as adsorbent to remove
methylene blue (MB) from aqueous solution. Characterizations using transmission electron microscope (TEM) and Fourier transform infrared (FTIR) spectroscopy were carried out on the GO before the MB adsorption experiments. The adsorption kinetics and isotherm studies were conducted under different conditions (pH = 3-7 and MB concentration = 100-400 mg/L) to examine the adsorption efficiency of the GO towards MB in aqueous solution. The adsorption kinetics data were analyzed using different kinetic models to investigate the adsorption behavior of MB on GO. The obtained results showed that the maximum adsorption capacity of the GO towards MB can achieve up to ~700 mg/g for the adsorption at 300 mg/L MB. The adsorption kinetic data were found to fit pseudo-second order model as compared with pseudo-first-order model. The intraparticle diffusion model suggested that the adsorption process of GO towards MB was dominated by the external mass transfer of MB molecules to the surface of GO. |
| first_indexed | 2024-03-06T08:16:21Z |
| format | Article |
| id | upm.eprints-30057 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T08:16:21Z |
| publishDate | 2013 |
| publisher | Penerbit Universiti Kebangsaan Malaysia |
| record_format | dspace |
| spelling | upm.eprints-300572016-03-21T13:28:54Z http://psasir.upm.edu.my/id/eprint/30057/ Methylene blue adsorption on graphene oxide Chia, Chin Hua Razali, Nur Fazlinda Sajab, Mohd Shaiful Zakaria, Sarani Huang, Nay Ming Lim, Hong Ngee In this study, graphene oxide (GO), produced using the simple Hummer’s method, was used as adsorbent to remove methylene blue (MB) from aqueous solution. Characterizations using transmission electron microscope (TEM) and Fourier transform infrared (FTIR) spectroscopy were carried out on the GO before the MB adsorption experiments. The adsorption kinetics and isotherm studies were conducted under different conditions (pH = 3-7 and MB concentration = 100-400 mg/L) to examine the adsorption efficiency of the GO towards MB in aqueous solution. The adsorption kinetics data were analyzed using different kinetic models to investigate the adsorption behavior of MB on GO. The obtained results showed that the maximum adsorption capacity of the GO towards MB can achieve up to ~700 mg/g for the adsorption at 300 mg/L MB. The adsorption kinetic data were found to fit pseudo-second order model as compared with pseudo-first-order model. The intraparticle diffusion model suggested that the adsorption process of GO towards MB was dominated by the external mass transfer of MB molecules to the surface of GO. Penerbit Universiti Kebangsaan Malaysia 2013 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/30057/1/Methylene%20blue%20adsorption%20on%20graphene%20oxide.pdf Chia, Chin Hua and Razali, Nur Fazlinda and Sajab, Mohd Shaiful and Zakaria, Sarani and Huang, Nay Ming and Lim, Hong Ngee (2013) Methylene blue adsorption on graphene oxide. Sains Malaysiana, 42 (6). pp. 819-826. ISSN 0026-6039 http://www.ukm.my/jsm/english_journals/vol42num6_2013/contentsVol42num6_2013.html |
| spellingShingle | Chia, Chin Hua Razali, Nur Fazlinda Sajab, Mohd Shaiful Zakaria, Sarani Huang, Nay Ming Lim, Hong Ngee Methylene blue adsorption on graphene oxide |
| title | Methylene blue adsorption on graphene oxide |
| title_full | Methylene blue adsorption on graphene oxide |
| title_fullStr | Methylene blue adsorption on graphene oxide |
| title_full_unstemmed | Methylene blue adsorption on graphene oxide |
| title_short | Methylene blue adsorption on graphene oxide |
| title_sort | methylene blue adsorption on graphene oxide |
| url | http://psasir.upm.edu.my/id/eprint/30057/1/Methylene%20blue%20adsorption%20on%20graphene%20oxide.pdf |
| work_keys_str_mv | AT chiachinhua methyleneblueadsorptionongrapheneoxide AT razalinurfazlinda methyleneblueadsorptionongrapheneoxide AT sajabmohdshaiful methyleneblueadsorptionongrapheneoxide AT zakariasarani methyleneblueadsorptionongrapheneoxide AT huangnayming methyleneblueadsorptionongrapheneoxide AT limhongngee methyleneblueadsorptionongrapheneoxide |