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Structure and photocatalytic activity of Ti1−X MX O2 (M = Zr, Co and Mo) synthesized by pulverized solid state technique

100%

Santhosh S., Swetha S., Balakrishna G.

Open Chemistry

2010

vol. 8

issue 2

453-460

A set of transition metal doped nanosized TiO2 particles with anatase structure were synthesized by the pulverization method and their ability to photocatalytically degrade the dye Alizarin Red S was investigated. Characterization of the Zr-, Co- and Mo-doped photocatalysts was conducted with the aid of XRD, SEM, EDX, TEM, BET and spectral analysis. X-ray diffraction patterns did not reflect the appearance of any peaks due to dopants, however dopants were observed in SEM-EDX analysis. Particle sizes were in the range of 25 nm as per TEM and XRD analysis. Upon doping, a prominent decrease in surface area was observed. The percentage composition of each of the dopants was confirmed by EDX analysis. Doped samples depicted many mid-bands in the Kubelka Munk plots due to d-d transition of dopants. Experiments were conducted to compare the photocatalytic activity under identical UV and solar light exposure. Zr-doped TiO2 at the molecular scale exhibited better photocatalytic activity in degradation of Alizarin, with a lower band-gap energy that can respond to visible light. However, Co- and Mo-doped TiO2 appeared to suppress the photoactivity. A rise in the number of mid-bands causing effective separation or recombination of charge carriers strongly influences the rate of the degradation process. [...]

Erratum to “Structure and photocatalytic activity of Ti1−XMxO2(M = Zr, Co and Mo) synthesized by pulverized solid state technique”

100%

Santhosh S., Swetha S., Balakrishna G.

Open Chemistry

2010

vol. 8

issue 4

963-963

The original version of the article was published in Central European Journal of Chemistry, 2010, 8(2), 453–460, DOI: 10.2478/s11532-010-0003-5. Unfortunately, the original version of this article contains mistake, which we correct here.

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2 Open Chemistry

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2 Santhosh S.

2 Swetha S.

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Structure and photocatalytic activity of Ti1−X MX O2 (M = Zr, Co and Mo) synthesized by pulverized solid state technique

Erratum to “Structure and photocatalytic activity of Ti1−XMxO2(M = Zr, Co and Mo) synthesized by pulverized solid state technique”