TiO2 activation by using activated carbon as a support

Araña, J.; Doña-Rodrı́guez, J.M.; Rendón, E. Tello; Cabo, C. Garriga i; Díaz, O. González; Melián, J.A. Herrera; Pérez‐Peña, J.; Colón, G.; Navı́o, J.A.

doi:10.1016/s0926-3373(03)00107-3

Cited by 156 publications

(57 citation statements)

References 22 publications

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“…fect for the mixture of TiO 2 with activated carbon (AC), was observed by some researchers 3,6,8,25 . The improvement of the photocatalytic properties of TiO 2 /AC composite was explained by the high adsorption of the impurities on the surface of activated carbon and their transfer to TiO 2 surface and depended on the mass ratio of TiO 2 to the activated carbon.…”

Section: Introductionmentioning

confidence: 94%

Carbon modified TiO₂ photocatalysts for water purification

Morawski

Janus

Tryba

et al. 2009

Polish Journal of Chemical Technology

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Carbon modified TiO2 photocatalysts for water purification Carbon can form different structures with TiO2: carbon-doped TiO2, carbon coated TiO2 and composites of TiO2 and carbon. The presence of carbon layer on the surface of TiO2 as well as the presence of porous carbon in the composites with TiO2 can increase the concentration of organic pollutants on the surface of TiO2, facilitating the contact of the reactive species with the organic molecules. Carbon-doped TiO2 can extend the absorption of the light to the visible region by the narrowing of the band gap and makes the photocatalysts active under visible light irradiation. TiO2 loaded carbon can also work as a photocatalyst, on which the molecules are adsorbed in the pores of carbon and then they undergo the photocatalytic decomposition with UV irradiation. Enhanced photocatalytic activity for the destruction of some organic compounds in water was noticed on the carbon coated TiO2 and TiO2 loaded activated carbon, mostly because of the adsorptive role of carbon. However, in carbon-doped TiO2, the role of carbon is somewhat different, the replacement of carbon atom with Ti or oxygen and formation of oxygen vacancies are responsible for extending its photocatalytic activity towards the visible range.

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Section: Introductionmentioning

confidence: 94%

Carbon modified TiO₂ photocatalysts for water purification

Morawski

Janus

Tryba

et al. 2009

Polish Journal of Chemical Technology

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“…The reduction in SO 4 2-ion means that photocatalysis is able to proceed at a faster rate. Arana et al [15] attributed the increase in photocatalytic reaction of phenol, 4-amino phenol and salicylic acid to increased adsorption of photo-products on a larger BET surface available with activated carbon. In this study, the increase in efficiency of MM degradation is similarly attributed to the adsorption of photo-products on the larger BET surface available with TiO 2 coupling with the PAC and active sites available to react with the pollutants.…”

Section: The Effect Of Inorganic Compound In Degradation Of MMmentioning

confidence: 99%

A continuous photocatalysis system in the degradation of herbicide

Areerachakul

Vigneswaran

Ngo

et al. 2008

Korean J. Chem. Eng.

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The performance of both batch and continuous photo-catalytic reactors were studied to evaluate their capabilities in removing the sulfonyl urea herbicide of metsulfuron methyl (MM). It was found in a batch reactor, that an addition of a small amount of powder activated carbon (PAC) significantly increased the rate of degradation of MM. The continuous photocatalytic system resulted in 57% of MM removal. When a small dose of activated carbon was added in the photo-catalytic system, MM removal increased to 78-86% MM removal for detention times between of 5.25-21 min (corresponding to withdrawal rates of 10-40 mLmin -1 ). In this study, the pseudo first order rate constants of continuous photo-catalytic system revealed that shorter detention time were associated with lower rate constants. solid phase micro extraction/gas chromatography (SPME/GC) results showed that high concentrations of MM were broken down to small volatile organic compounds (VOCs) by photo-catalytic oxidation. PAC adsorbed the photo-products and increased the degradation of MM.

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“…It is close with 13% composition weight of activated carbon using for pollutant reduction. [3] Comparison study for commercial mosquito trap shows that Mosquito Magnet Pro and Mosquito Magnet Liberty mosquito trap and Bug Eater are better. It was assumed that CO 2 from those devices more attractive to mosquitoes [4].…”

Section: Introductionmentioning

confidence: 99%

Study of mosquito attractants for photo catalytic mosquito trap

Tristantini

Slamet

Stephanie

2013

IJET

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Photo catalytic mosquito trap is made of TiO 2 -Activated Carbon (AC) with a certain composition of AC. Research concerns on the heat spectrum which is produced by combination process of existing CO 2 and humid air. The purpose of performance testing is to observe capability of this device in trapping mosquitoes related to the air temperature profile for heat spectrum is play important role for attracting mosquitoes. Result shows photo catalytic mosquito trap is more effective than devices which only consist of UV light or stream of CO 2 and the humid air. A number of mosquitoes trapped by the photo catalyst coated panel configuration and UV lamps were lit proved far more effective because the heat production from recombination process. A little difference in temperature can be detected by mosquito.

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TiO2 activation by using activated carbon as a support

Cited by 156 publications

References 22 publications

Carbon modified TiO₂ photocatalysts for water purification

Carbon modified TiO₂ photocatalysts for water purification

A continuous photocatalysis system in the degradation of herbicide

Study of mosquito attractants for photo catalytic mosquito trap

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