Authors:
Bo-Hyun Kim Pukyong National University Division of Chemical Engineering Busan 608-739 Korea

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Tae-Hee Lim Pukyong National University Division of Chemical Engineering Busan 608-739 Korea

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Jin-Woong Roh Pukyong National University Division of Chemical Engineering Busan 608-739 Korea

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Sang-Geun Lee Pukyong National University Division of Chemical Engineering Busan 608-739 Korea

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Chang Ju Pukyong National University Division of Chemical Engineering Busan 608-739 Korea

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Seong Park Pukyong National University Division of Chemical Engineering Busan 608-739 Korea

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Seong Hong Pukyong National University Division of Chemical Engineering Busan 608-739 Korea

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Gun Lee Pukyong National University Division of Chemical Engineering Busan 608-739 Korea

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Abstract  

Undoped and Cr-doped Bi12TiO20 (BTO) were prepared and used as photocatalysts for the degradation of formic acid both under visible light and UV irradiation. The effects of the Cr doping on the visible light response and the photocatalytic activity of BTO were investigated. The prepared catalysts were characterized by using XRD, XPS, UV–Vis diffuse reflectance spectroscopy (DRS) and photoluminescence (PL) spectroscopy. The doping of Bi12TiO20 with low concentration of Cr leads to noticeable increase in visible light absorption and decrease in the recombination rate of photo-generated electrons and holes. As a result, the Cr-doped BTO showed a higher photocatalytic activity for the degradation of formic acid both under visible light and UV irradiation, as compared with undoped BTO.

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Reaction Kinetics, Mechanisms and Catalysis
Language English
Size B5
Year of
Foundation
1974
Volumes
per Year
1
Issues
per Year
6
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1878-5190 (Print)
ISSN 1878-5204 (Online)