Photocatalytic efficiency of titania photocatalysts in saline waters
The photocatalytic efficiency of the recently synthesized TiO2 powder, named P160, of the degradation of dye Dye C.I. Reactive orange 16 in natural and artificial seawater was investigated in comparison to its efficiency in deionized water and the efficiency of a standard TiO2 powder Degusa...
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| Format: | Article |
| Language: | English |
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Serbian Chemical Society
2014-01-01
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| Series: | Journal of the Serbian Chemical Society |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/0352-5139/2014/0352-51391400020A.pdf |
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| author | Albrbar Asma Juma Bjelajac Anđelika Đokić Veljko Miladinović Jelena Janaćković Đorđe Petrović Rada |
| author_facet | Albrbar Asma Juma Bjelajac Anđelika Đokić Veljko Miladinović Jelena Janaćković Đorđe Petrović Rada |
| author_sort | Albrbar Asma Juma |
| collection | DOAJ |
| description | The photocatalytic efficiency of the recently synthesized TiO2 powder, named
P160, of the degradation of dye Dye C.I. Reactive orange 16 in natural and
artificial seawater was investigated in comparison to its efficiency in
deionized water and the efficiency of a standard TiO2 powder Degusa P25. It
was shown that the photocatalytic efficiency of P160 was slightly higher
than that of P25, probably due to slightly higher specific surface area,
higher pore volume and larger pores of the powder P160. The efficiency of
both photocatalysts in natural and artificial seawater was significantly
lower than that in deionized water. The overall rate of dye degradation for
both types of photocatalysts is litle higher in artificial seawater than in
natural seawater, which shows the influence of organic compounds naturally
present in seawater on the photocatalysts activity. A saturation
Langmuir-type relationship between the initial degradation rate and the
initial dye concentration indicates that the adsorption plays a role in the
photocatalytic reaction. The photodegradation rate constant k, which
represents the maximum reaction rate, has similar values for P25 and P160 in
all types of water due to the similar properties of the photocatalysts.
[Projekat Ministarstva nauke Republike Srbije, br III 45019] |
| first_indexed | 2024-12-20T05:28:41Z |
| format | Article |
| id | doaj.art-31fdcaaef3ff406b9dfb6e63f56e5ef5 |
| institution | Directory Open Access Journal |
| issn | 0352-5139 1820-7421 |
| language | English |
| last_indexed | 2024-12-20T05:28:41Z |
| publishDate | 2014-01-01 |
| publisher | Serbian Chemical Society |
| record_format | Article |
| series | Journal of the Serbian Chemical Society |
| spelling | doaj.art-31fdcaaef3ff406b9dfb6e63f56e5ef52022-12-21T19:51:48ZengSerbian Chemical SocietyJournal of the Serbian Chemical Society0352-51391820-74212014-01-017991127114010.2298/JSC131114020A0352-51391400020APhotocatalytic efficiency of titania photocatalysts in saline watersAlbrbar Asma Juma0Bjelajac Anđelika1Đokić Veljko2Miladinović Jelena3Janaćković Đorđe4Petrović Rada5Faculty of Technology and Metallurgy, BelgradeFaculty of Technology and Metallurgy, Innovation center, BelgradeFaculty of Technology and Metallurgy, BelgradeFaculty of Technology and Metallurgy, BelgradeFaculty of Technology and Metallurgy, BelgradeFaculty of Technology and Metallurgy, BelgradeThe photocatalytic efficiency of the recently synthesized TiO2 powder, named P160, of the degradation of dye Dye C.I. Reactive orange 16 in natural and artificial seawater was investigated in comparison to its efficiency in deionized water and the efficiency of a standard TiO2 powder Degusa P25. It was shown that the photocatalytic efficiency of P160 was slightly higher than that of P25, probably due to slightly higher specific surface area, higher pore volume and larger pores of the powder P160. The efficiency of both photocatalysts in natural and artificial seawater was significantly lower than that in deionized water. The overall rate of dye degradation for both types of photocatalysts is litle higher in artificial seawater than in natural seawater, which shows the influence of organic compounds naturally present in seawater on the photocatalysts activity. A saturation Langmuir-type relationship between the initial degradation rate and the initial dye concentration indicates that the adsorption plays a role in the photocatalytic reaction. The photodegradation rate constant k, which represents the maximum reaction rate, has similar values for P25 and P160 in all types of water due to the similar properties of the photocatalysts. [Projekat Ministarstva nauke Republike Srbije, br III 45019]http://www.doiserbia.nb.rs/img/doi/0352-5139/2014/0352-51391400020A.pdfphotocatalysistitanium dioxidedye degradationseawaterLangmuir-Hinshelwood model |
| spellingShingle | Albrbar Asma Juma Bjelajac Anđelika Đokić Veljko Miladinović Jelena Janaćković Đorđe Petrović Rada Photocatalytic efficiency of titania photocatalysts in saline waters Journal of the Serbian Chemical Society photocatalysis titanium dioxide dye degradation seawater Langmuir-Hinshelwood model |
| title | Photocatalytic efficiency of titania photocatalysts in saline waters |
| title_full | Photocatalytic efficiency of titania photocatalysts in saline waters |
| title_fullStr | Photocatalytic efficiency of titania photocatalysts in saline waters |
| title_full_unstemmed | Photocatalytic efficiency of titania photocatalysts in saline waters |
| title_short | Photocatalytic efficiency of titania photocatalysts in saline waters |
| title_sort | photocatalytic efficiency of titania photocatalysts in saline waters |
| topic | photocatalysis titanium dioxide dye degradation seawater Langmuir-Hinshelwood model |
| url | http://www.doiserbia.nb.rs/img/doi/0352-5139/2014/0352-51391400020A.pdf |
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