|
|
|
| CHARACTERISTICS AND PROPERTY OF PHOTO-CATALYTIC NANO CRYSTALLINE TITANIUM DIOXIDEFILM PREPARED BY ELECTROCHEMICAL OXIDATION〖ST〗〖HT〗〖WT〗〖KH1D〗 |
| Jiangjiang Song;Jianian Shen;Lingfeng Li;Shudian Yao |
| 上海大学材料研究所 |
|
|
|
|
Abstract Photocatalytic titanium dioxide film in nano crytalline has been prepared by electrochemical oxidation process.It shows that amorphous titanium dioxide films are formed during the electrochemical oxidation process in the studied solution and applied voltage.Then heat treatment is carri ed out on the formed amorphous film to form nano crystallized titanium dioxide f ilm under the controlled temperature and heating time.The oxidation kinetics has been studied by measuring the film thickness and current density with oxidation time respectively.It shows that the film grows to an equilibrium thickness unde r certain oxidation voltage and the equilibrium thickness increases with the app lied voltage.The oxidation current density decreases with time in logarithm law under the applied voltage range from 0 to 80 V.The film crystalline size ranges from 10～30 nm and the film phase structure can be pure anatase as demonstrated by TEM and X-ray diffraction after the crystallization treatment.The photo abso r ption measurement demonstrated that the prepared film shows very strong absorpti on to the incoming light of near ultraviolet wave range.
|
|
Received: 03 December 2001
|
|
|
|
Corresponding Authors:
Jiangjiang Song
|
Cite this article:
Jiangjiang Song; Jianian Shen; Lingfeng Li; Shudian Yao. CHARACTERISTICS AND PROPERTY OF PHOTO-CATALYTIC NANO CRYSTALLINE TITANIUM DIOXIDEFILM PREPARED BY ELECTROCHEMICAL OXIDATION〖ST〗〖HT〗〖WT〗〖KH1D〗. J Chin Soc Corr Pro, 2002, 22(2): 98-100 .
URL:
https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y2002/V22/I2/98
|
[1]HuangSM .Photocatalytictitaniumoxidation[J].ActaMetall.Sini ca,1999,35(suppl.1):S721-S725(黄淑梅.钛的光催化氧化行为[J].金属学报,35(增刊1),1999,S721-S725)
[2]AkiraFujishima,TataNRao,DonaldATryk.Titaniumdioxidepho tocatalysis[J].J .PhotochemistryandPhotobiologyC :Photochem istryReview,2000,1:1-21
[3]SebastianVRMastrangelo.Dopantsinvapor-phasesynthesisofti taniapowders[J].J .Am.CeramicSoc.,1992,75:3408
[4]RobertDShannon,JosephAPask.Kineticsoftheanatase rutiletransformation[J].J.Am.CeramicSoc.,1965,48:391
[5]HauffeK .OxidationofMetals[M ].NewYork:PlenumPress,1965 |
| No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
