Photolytic Characteristics of TiO2 Treated by Atmospheric Pressure Dielectric Barrier Discharge

Jeong A Kang; Yoon Kee Kim

doi:10.3740/MRSK.2016.26.8.406

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2016 Vol.26, Issue 8 Preview Page Next Page

Photolytic Characteristics of TiO₂ Treated by Atmospheric Pressure Dielectric Barrier Discharge 대기압 유전체배리어 방전으로 표면처리된 TiO₂ 분말의 광분해 특성

August 2016. pp. 406-411

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Abstract

In order to reuse the photocatalyst and enhance the photolysis efficiency, we have used atmospheric pressure dielectric barrier discharge (APDBD) to clean and activate TiO₂ powder. The photocatalytic activity of the TiO₂ powder before and after APDBD treatment was evaluated by the degradation of methylene blue (MB) in aqueous solution. The apparent reaction rate constant of photolysis of the first sample of reused TiO₂ cleaned by APDBD improved to a level up to 0.32h-1 higher than the 30 % value of the initial TiO₂ powder. As the number of photolysis reactions and APDBD cleanings increased, the apparent rate constants gradually decreased; however, the fourth photolysis reaction still showed a value that was greater than 10% of the initial value. In addition, APDBD treatment enhanced the process by which TiO₂ effectively adsorbed MB at every photolysis stage.

Keywords

photolysis

TiO₂

dielectric barrier discharge

surface treatment

cleaning.

References

A Fujishima, X Zhang and D Tryk, A. Surf. Sci. Rep, 63; 515 (2008)

10.1016/j.surfrep.2008.10.001

M R Hoffmann, S T Martin, W Choi and D W Bahnemann, Chem. Rev, 95; 69 (1995)

10.1021/cr00033a004

M Anpo and Y Kubokawa, Res. Chem. Intermed, 8; 105 (1987)

10.1007/bf03155662

N M Dimitrijevic, Z V Saponjic, B M Rabatic and T Rajh, J. Am. Chem. Soc, 127; 1344 (2005)

10.1021/ja045811815686345

T-H Kim, S-W Lee, G Gyawali and Y-H Jo, Int. J. Appl. Ceram. Technol, 12; 577 (2015)

G Liu, L Wang, H G Yang, H M Cheng and G Q Lu, J. Mater. Chem, 20; 831 (2010)

10.1039/b909930a

A Di Paola, L Palmisano, M Derrigo and V Augugliaro, J. Phys. Chem. B, 101; 876 (1997)

10.1002/bbpc.19971010519

K-Y Kim, J Ryu, B-D Hahn, J-J Choi, W-H Yoon, B-K Lee, D-S Park and C Park, J. Korean Ceram. Soc, 45; 839 (2008)

I Jo, C W G. Ji, C Y Choi, Y S Kim and Y D Kim, J. Korean Inst. Surf. Eng, 41; 240 (2008)

Y K Kim, M Eichler and C-P Klages, Surf. Coat. Technol, 171; 321 (2003)

G S Selwyn, H W Herrmann, J Park and I Henins, Contrib. Plasma Phys, 6; 610 (2001)

http://dx.doi.org/10.1002/1521-3986(200111)41:6<610::aid-ctpp610>3.3.co;2-c

T K Le, D Flahaut, H Martinez, H K H Nguyen and T K X Huynh, Appl. Catal. B, 165; 260 (2015)

10.1016/j.apcatb.2014.10.024

N M Jacob, P Kuruva, G Madras and T Thomas, Ind. Eng. Chem. Res, 52; 16384 (2013)

10.1021/ie402727z

C-H Yi, Y-H Lee, D W Kim and G-Y Yeom, Surf. Coat. Technol, 163-164; 723 (2003)

T Homola, J Matousek, V Medvecka, A Zahoranova, M Kormunda, D Kovacik and M Cernak, Appl. Surf. Sci, 258; 7135 (2012)

10.1016/j.apsusc.2012.03.188

Information

Publisher :Materials Research Society of Korea
Publisher(Ko) :한국재료학회
Journal Title :Korean Journal of Materials Research
Journal Title(Ko) :한국재료학회지
Volume : 26
No :8
Pages :406-411
Received Date : 2016-06-17
Revised Date : 2016-06-29
Accepted Date : 2016-07-01
DOI :https://doi.org/10.3740/MRSK.2016.26.8.406

Korean Journal of Materials Research ISSN:1225-0562(Print) 2287-7258(Online) 한국재료학회지

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