Titanium dioxide-supported sulfonated low rank coal as catalysts in the oxidation of styrene with aqueous hydrogen peroxide
Titanium dioxide supported sulfonated low rank coal catalyst possesses high catalytic activity in liquid phase oxidation of styrene with aqueous hydrogen peroxide at room temperature. The catalysts were prepared by sulfonation with concentrated sulfuric acid and impregnation of titanium dioxide (500...
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Penerbit UTM Press
2014
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| _version_ | 1796861396398374912 |
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| author | Nurhadi, Mukhamad Jon, Efendi Lee, Siew Ling Mahli, Teuku Meurah Indra Ho, Hochin Yuan, Laisin Chandren, Sheela Nur, Hadi |
| author_facet | Nurhadi, Mukhamad Jon, Efendi Lee, Siew Ling Mahli, Teuku Meurah Indra Ho, Hochin Yuan, Laisin Chandren, Sheela Nur, Hadi |
| author_sort | Nurhadi, Mukhamad |
| collection | ePrints |
| description | Titanium dioxide supported sulfonated low rank coal catalyst possesses high catalytic activity in liquid phase oxidation of styrene with aqueous hydrogen peroxide at room temperature. The catalysts were prepared by sulfonation with concentrated sulfuric acid and impregnation of titanium dioxide (500-2500 μmol). The effect of titanium dioxide impregnation and calcinations on the catalysts were studied by X-ray diffraction, UV-vis diffuse reflectance spectroscopy, Fourier transform infrared spectroscopy, BET surface area, field emission scanning electron microscopy and hydrophobicity measurement. The catalytic activity of the catalysts in the oxidation of styrene by aqueous H2O2 without calcination increased when the amount of titanium dioxide increased. Meanwhile, the catalytic activity of the catalyst calcined at 500°C for 2 h was lower than before calcination. It is suggested that the agglomeration of titanium dioxide and hydrophobicity play important role in the catalytic activity of titanium dioxide-supported sulfonated low rank coal in the oxidation of styrene with aqueous H2O2. |
| first_indexed | 2024-03-05T19:55:41Z |
| format | Article |
| id | utm.eprints-63093 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-03-05T19:55:41Z |
| publishDate | 2014 |
| publisher | Penerbit UTM Press |
| record_format | dspace |
| spelling | utm.eprints-630932017-06-14T03:14:27Z http://eprints.utm.my/63093/ Titanium dioxide-supported sulfonated low rank coal as catalysts in the oxidation of styrene with aqueous hydrogen peroxide Nurhadi, Mukhamad Jon, Efendi Lee, Siew Ling Mahli, Teuku Meurah Indra Ho, Hochin Yuan, Laisin Chandren, Sheela Nur, Hadi Q Science Titanium dioxide supported sulfonated low rank coal catalyst possesses high catalytic activity in liquid phase oxidation of styrene with aqueous hydrogen peroxide at room temperature. The catalysts were prepared by sulfonation with concentrated sulfuric acid and impregnation of titanium dioxide (500-2500 μmol). The effect of titanium dioxide impregnation and calcinations on the catalysts were studied by X-ray diffraction, UV-vis diffuse reflectance spectroscopy, Fourier transform infrared spectroscopy, BET surface area, field emission scanning electron microscopy and hydrophobicity measurement. The catalytic activity of the catalysts in the oxidation of styrene by aqueous H2O2 without calcination increased when the amount of titanium dioxide increased. Meanwhile, the catalytic activity of the catalyst calcined at 500°C for 2 h was lower than before calcination. It is suggested that the agglomeration of titanium dioxide and hydrophobicity play important role in the catalytic activity of titanium dioxide-supported sulfonated low rank coal in the oxidation of styrene with aqueous H2O2. Penerbit UTM Press 2014 Article PeerReviewed Nurhadi, Mukhamad and Jon, Efendi and Lee, Siew Ling and Mahli, Teuku Meurah Indra and Ho, Hochin and Yuan, Laisin and Chandren, Sheela and Nur, Hadi (2014) Titanium dioxide-supported sulfonated low rank coal as catalysts in the oxidation of styrene with aqueous hydrogen peroxide. Jurnal Teknologi (Sciences and Engineering), 69 (5). pp. 71-79. ISSN 0127-9696 https://dx.doi.org/10.11113/jt.v69.3208 DOI:10.11113/jt.v69.3208 |
| spellingShingle | Q Science Nurhadi, Mukhamad Jon, Efendi Lee, Siew Ling Mahli, Teuku Meurah Indra Ho, Hochin Yuan, Laisin Chandren, Sheela Nur, Hadi Titanium dioxide-supported sulfonated low rank coal as catalysts in the oxidation of styrene with aqueous hydrogen peroxide |
| title | Titanium dioxide-supported sulfonated low rank coal as catalysts in the oxidation of styrene with aqueous hydrogen peroxide |
| title_full | Titanium dioxide-supported sulfonated low rank coal as catalysts in the oxidation of styrene with aqueous hydrogen peroxide |
| title_fullStr | Titanium dioxide-supported sulfonated low rank coal as catalysts in the oxidation of styrene with aqueous hydrogen peroxide |
| title_full_unstemmed | Titanium dioxide-supported sulfonated low rank coal as catalysts in the oxidation of styrene with aqueous hydrogen peroxide |
| title_short | Titanium dioxide-supported sulfonated low rank coal as catalysts in the oxidation of styrene with aqueous hydrogen peroxide |
| title_sort | titanium dioxide supported sulfonated low rank coal as catalysts in the oxidation of styrene with aqueous hydrogen peroxide |
| topic | Q Science |
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