2010
DOI: 10.1016/j.jallcom.2010.03.076
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Preparation, characterization and photocatalytic activity of Co-doped ZnO powders

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Cited by 150 publications
(57 citation statements)
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“…All samples are of similar size and morphology [10]. Figure 4a illustrates a typical FESEM image of the ZnO-Cd (0.05) sample.…”
Section: Sample Characterizationmentioning
confidence: 99%
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“…All samples are of similar size and morphology [10]. Figure 4a illustrates a typical FESEM image of the ZnO-Cd (0.05) sample.…”
Section: Sample Characterizationmentioning
confidence: 99%
“…Therefore, doping transitional metal ions offers promising opportunities in order to shift the optical absorption of ZnO into the visible region and prevent charges from the recombination on the photocatalyst surfaces [10,11].…”
Section: Introductionmentioning
confidence: 99%
“…The photocatalytic reactor consists of a glass tube with an inlet tube for provision of air purging during photocatalysis and outlet tube for the collection of samples from the reactor at regular time intervals. 0.2 g of the assynthesized photocatalyst powder and 100 mL of aqueous solution of TB (25 ppm) were taken in the reactor tube and the suspension was stirred in dark for 30 min to obtain adsorption/desorption equilibrium before irradiating the dye in the reactor [15]. The UV lamp (Philips) that predominantly emit at 254 nm with the definite power 12 W, 230 V and 50 Hz frequency was employed as UV source and tungsten lamp (TORCH) with definite power 40 W, 220 V, 0.18 A and 50 Hz frequency was employed as visible source, and positioned parallel to the reactor.…”
Section: Photocatalytic Degradation Studiesmentioning
confidence: 99%
“…Photocatalysis has been intensively investigated in recent years [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17]. In a photocatalytic process, electron-hole pairs are generated under illumination, followed by oxidation and/or reduction reactions at the surface of the photocatalyst [1].…”
Section: Introductionmentioning
confidence: 99%
“…Activity under solar illumination has also been reported [1], although efficiency is expected to be low since it can only absorb UV A and UV B solar radiation [2]. A number of materials have been investigated as an alternative to TiO 2 , including ZnO [2,8,[13][14][15][16]. ZnO exhibits similar [2] or better [8,13] activity compared to titania, but it is also less stable compared to titania [2] and susceptible to photocorrosion [8].…”
Section: Introductionmentioning
confidence: 99%