Immobilization of TiO<sub>2</sub> with cement: Photocatalytic degradation of phenol and its kinetic studies
IR@NISCAIR: CSIR-NISCAIR, New Delhi - ONLINE PERIODICALS REPOSITORY (NOPR)
View Archive Info| Field | Value | |
| Title |
Immobilization of TiO<sub>2</sub> with cement: Photocatalytic degradation of phenol and its kinetic studies
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| Creator |
Sopyan, Iis
Hafizah, Nor Jamal, Parveen |
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| Subject |
Sol-gel
TiO<sub>2</sub> photocatalyst Cement-bonded Phenol solution Kinetic studies Langmuir-Hinshelwood |
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| Description |
263-270
Two types of TiO<sub>2</sub> powders with water-to-titanium tetraisopropoxide (TPT) ratios of 1 (Powder 1) and 2 (Powder 2) were synthesized via sol-gel method. Both powders were characterized physicochemically before immobilized with white plaster cement for photodegradation of phenol in liquid phase. Aqueous phenol solution containing cement-bonded of TiO<sub>2</sub> Powders 1 and 2 were irradiated with UV light of 2.6 mW/cm<sup>2</sup> intensity and their efficiency was compared using Langmuir-Hinshelwood kinetic model. From the kinetic analysis, it was found that the adsorption equilibrium constant (KLH) of Powder 1 was higher than that of Powder 2 due to higher specific surface area. Powder 2 has higher value of the reaction rate constant (kr) as its high crystallinity was capable to generate better charge separation to destruct phenol molecules on its surface. |
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| Date |
2011-09-07T08:34:39Z
2011-09-07T08:34:39Z 2011-07 |
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| Type |
Article
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| Identifier |
0975-0991 (Online); 0971-457X (Print)
http://hdl.handle.net/123456789/12656 |
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| Language |
en_US
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| Rights |
<img src='http://nopr.niscair.res.in/image/cc-license-sml.png'> <a href='http://creativecommons.org/licenses/by-nc-nd/2.5/in' target='_blank'>CC Attribution-Noncommercial-No Derivative Works 2.5 India</a>
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| Publisher |
NISCAIR-CSIR, India
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| Source |
IJCT Vol.18(4) [July 2011]
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