Electrochemical Synthesis of TiO2 Photocatalyst with Anodic Porous Alumina

Takanori Hattori; Takayoshi Fujino; Seishiro Ito

Korean Journal of Materials Research, Vol.17, No.11, 593-600, November, 2007

DOI10.3740/MRSK.2007.17.11.593 Export Citation

Electrochemical Synthesis of TiO2 Photocatalyst with Anodic Porous Alumina

Takanori Hattori, Takayoshi Fujino^†, and Seishiro Ito

Department of Applied Chemistry, Faculty of Science & Technology, Kinki University, 3-4-1 Kowakae, Higashiosaka, Osaka 577-8502, Japan, Korea

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Aluminum was anodized in a H2SO4 solution, and titanium (IV) oxide (TiO2) was electrodeposited into nanopores of anodic porous alumina in a mixed solution of TiOSO4 and (COOH)2. The photocatalytic activity of the prepared film was analyzed for photodegradation of methylene blue aqueous solution. Consequently, we found it was possible to electrodeposit TiO2 onto anodic porous alumina, and synthesized it into the nanopores by hydrolysis of a titanium complex ion under AC 8-9 V when film thickness was about 15-20 μm. The photocatalytic activity of TiO2-loaded anodic porous alumina (TiO2/Al2O3) at an impressed voltage of 9 V was the highest in every condition, being about 12 times as high as sol-gel TiO2 on anodic porous alumina. The results revealed that anodic porous alumina is effective as a substrate for photocatalytic film and that high-activity TiO2 film can be prepared at low cost.

Keywords:TiO2;Photocatalyst;Anodic porous alumina;Electrodeposition;Titanium complex ion

[References]

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[1] Fujishima A, Honda K, Nature, 238(5358), 37 (1972)

[2] Inoue T, Fujishima A, Konishi S, Honda K, Nature, 277, 637 (1979)

[3] Negishi N, Takeuchi K, Ibusuki T, Applied surface science, 121/122, 417 (1997)

[4] Komazaki Y, Shimizu H, Tanaka S, Atmospheric Environment, 33(27), 4363 (1999)

[5] Ishizaki A, Hyoumen gijutsu, 50, 251 (1999)

[6] Yamaguchi Y, Hyoumen gijutsu, 50, 256 (1999)

[7] Takeuchi H, Hyoumen gijutsu, 50, 260 (1999)

[8] Anpo M, Morizane T, Inui T, Kato K, Nomura E, and Taoda H, in Saishin hikarishokubai gijutsu (NTS Co.Ltd, 2000), p. 11-12. (in Japanese) (2000)

[9] Wang ZS, Huang CH, Huang YY, Zhang BW, Xie PH, Hou YJ, Ibrahim K, Qian HJ, Liu FQ, Sol. Energy Mater. Sol. Cells, 71(2), 261 (2002)

[10] Hara K, Horiguchi T, Kinoshita T, Sayama K, Arakawa H, Sol. Energy Mater. Sol. Cells, 70(2), 151 (2001)

[11] Viswanath RN, Chandra A, J. Physics and Chemistry of Solids, 62(11), 1991 (2001)

[12] Fretwell R, Douglas P, J. Photochemistry and Photobiology A, 143(2-3), 229 (2001)

[13] Guo Y, Sakurai M, Kameyama H, Matsuyama A, Kudoh Y, J. of The Surface Finishing Society of Japan, 55, 366 (2004)

[14] Fujino T, Nara T, Kinki Aruminiumu Hyomen Shori Kenkyukai Kaishi, 216, 1 (2002)

[15] Fujino T, Nara T, Keikinzoku, 53(10), 410 (2003)

[16] Anpo M, Aikawa N, Kubokawa Y, Che M, Louis C, Giamello E, J. Physical Chemistry, 89, 1985 (5017)

[17] Hua ZL, Shi JL, Zhang LX, Ruan ML, Yan JN, Adv. Mater., 14(11), 830 (2002)

[18] Schneider JJ, Czap N, Hagen J, Engstler J, Ensling J, Jos De Jongh L, Wark M, Grubert G, Hornyak GL, Zanoni R, Chemistry-A European Journal, 6(23), 4305 (2000)

[19] Yamashita H, Kawasaki S, Ichihashi Y, Harada M, Takeuchi M, Anpo M, Stewart G, Fox MA, Louis C, Che M, J. Phys. Chem. B, 102(30), 5870 (1998)

[20] Li JH, Shia XY, Wang LJ, Liu F, J. Colloid Interface Sci., 315(1), 230 (2007)

[21] Maiyalagan T, Viswanathan B, Varadaraju UV, Bulletin of Materials Science, 29(7), 705 (2006)

[22] Honda K, Yoshikawa T, Bunseki Kagaku, 56(1), 51 (2007)