INFLUENCE OF VACUUM DEHYDRATION AND VISIBLE LIGHT IRRADIATION ON ESR PROPERTY OF NANOTUBE TITANIC ACID

doi:10.7517/j.issn.1674-0475.2003.04.273

Abstract

Abstract: The influence of vacuum dehydration and visible light irradiation on ESR property of nanotube titanic acid was studied.A symmetrical ESR signal appeared at g=2.003 in dark,which was assigned to be single-electron-trapped oxygen vacancy.The signal intensity increased with both treatment time and visible light irradiation time(λ=532 nm).Under irradiation the signal intensity increased,till a steady state reached.After turning off the irradiation,the signal intensity decreased in dark but it cannot return to its initial value.

Key words: nanotube titanic acid, ESR, oxygen vacancy

CLC Number:

LI Wei, JIN Zhen-sheng, YANG Jian-jun, ZHANG Zhi-jun. INFLUENCE OF VACUUM DEHYDRATION AND VISIBLE LIGHT IRRADIATION ON ESR PROPERTY OF NANOTUBE TITANIC ACID[J]. Imaging Science and Photochemistry, 2003, 21(4): 273-279.

References

[1] E Serwicka,M W Schlierkamp,R N Schindler.Localization of conduction band electrons in polycrystalline TiO₂ studied by ESR[J].Z.Naturforsch.,1981,36A:226-232.
[2] E Serwicka.ESR study on the interaction of water vapor with polycrystalline titanium dioxide under illumination[J].Colloids Surf.,1985,13:226-231.
[3] A M Volodin,A E Cherkashin,V S Zakharenko.Influence of physically adsorbed oxygen on the separation of electron-hole pairs on anatase irradiated by visible light[J].React.Kinet.Catal.Lett.,1979:11:103-106.
[4] A M Volodin,A E Cherkashin,V S Zakharenko.Formation of O₂^- ion-radicals on reduced anatase.Influence of adsorbed CO on the stabilization of O₂^-[J].React.Kinet.Catal.Lett.,1979,11:107-111.
[5] C Naccache.ESR study of species formed by reaction of O^-,adsorbed on magnesium oxide with O₂,CO and ethylene[J].Chemical Physics Letters,1971,11:323-325.
[6] Isao Nakamura,Nobuaki Negishi,Shuzo Kutsuna,Tatsuhiko Ihara,Shinichi Sugihara,Koji Takeuchi.Role of oxygen vacancy in the plasma-treated TiO₂ photocatalyst with visible light activity for NO removal[J].Journal of Molecular Catalysis,A:Chemical,2000,161:205-212.
[7] T Kasuga,M Hiramatsu,A Hoson,T Sekino,K Niihara.Formation of titanium oxide nanotube[J].Langmuir,1998,14:3160-3163.
[8] 张顺利,张治军,金振声,等.纳米管TiO₂的形貌结构和物理化学特性[J].科学通报,2000,45:1104-1107.Zhang S L,Zhang Z J,Jin Z S,et al.Morphological structure and physicochemical properties of nanotube TiO₂[J].Chinese Science Bulletin,2000,45:1533-1536.
[9] Jing Wei Zhang,Xin Yong Guo,Zhen Sheng Jin,Shun Li Zhang,Jing Fang Zhou,Zhi Jun Zhang.TEM study on the formation process of TiO₂ nanotubes[J].Chinese Chemical Letters,2003,14:419-422.
[10] 王晓冬,李伟,杨建军,等.纳米管钛酸的组成分析[J].化学研究,2003,14(2):5-8.Wang X D,Li W,Yang J J,et al.Analysis of the ingredients the sodium titanate nanotube[J].Chemical Research,2003,14(2):5-8.

[1]	ZHANG Jiwei, JIN Zhensheng, ZHANG Jingwei, LI Qiuye, ZHANG Zhijun. Preparation of Novel Anatase TiO₂ Nanotube with High-concentration-intrinsic Defects [J]. Imaging Science and Photochemistry, 2015, 33(4): 285-291.
[2]	LI Qiuye, JIN Zhensheng. Nano Photoelectrochemical Cell-like Model for Visible-light-responded Overall Splitting of Water [J]. Imaging Science and Photochemistry, 2015, 33(2): 99-107.
[3]	LI Hai-yan, QIAN Jun-jie, LIU Jin-feng, LI Qiu-ye, ZHANG Min, YANG Jian-jun. Study on the Synthesis of N, Bi-codoped TiO₂ Nanoparticles and Their Visible Light Photocatalytic Performance [J]. Imaging Science and Photochemistry, 2013, 31(6): 411-420.
[4]	YE Miao-miao, CHEN Zhong-lin, SHEN Ji-min, BEN Yue, LIU Xiao-wei. ESR Analysis on the Ozone Enhanced Photocatalytic Activity of Aqueous Nanosized Titanium Dioxide Suspensions [J]. Imaging Science and Photochemistry, 2008, 26(6): 460-467.
[5]	XU Zhan-xia, CUI Guan-jun, ZHANG Min, YANG Jian-jun. Preparation of the Novel CdS/TiO₂ Nanocomposites and Its Visible-light Photocatalytic Properties [J]. Imaging Science and Photochemistry, 2008, 26(6): 489-498.
[6]	MA Xin-qi, FENG Cai-xia, GUI Li-li, YAO-Li, NIU Yu-qi, GUO Xin-yong. The Preparation of Ag Loaded Nanotube Titanic Acid Catalyst [J]. Imaging Science and Photochemistry, 2008, 26(2): 104-108.
[7]	YE Miao-miao, CHEN Zhong-lin, SHEN Ji-min, BEN Yue. The Degradation of p-Nitrochlorobenzene in Aqueous Solution by TiO₂/UV/O₂ and TiO₂/UV/N₂ System [J]. Imaging Science and Photochemistry, 2007, 25(4): 296-305.
[8]	FENG Cai-xia, JIN Zhen-sheng, WANG Xiao-dong, YANG Jian-jun. Preparation and Photocatalytic Behavior of Pt-inserted Nanotube Titanic Acid under Visible Light Irradiation [J]. Imaging Science and Photochemistry, 2007, 25(1): 12-17.
[9]	GUO Hong, YAO Lin-hui, SHI Yao, CHEN Jing-rong, XIA Pei-jie. FORMATION OF PHOTOGENERATED RADICALS OF SOME CARBOXYLATES IN AQUEOUS SOLUTION WITH DISPERSED AgBr [J]. Imaging Science and Photochemistry, 2003, 21(2): 89-94.
[10]	ZHOU Jinwei, WANG Yanqiao, REN Deyuan . PREPARATION AND CHARACTERIZATION OF A TWO COMPONENT SYSTEM: H₂Pc-VOPc [J]. Imaging Science and Photochemistry, 1998, 16(3): 267-273.
[11]	ZHANG Hongyu, ZHANG Zhiyi, WANG Dahui, LI Meifen. COMPARISON OF PHOTOSENSITIZATION BETWEEN HYPOCRELLIN A AND CERCOSPORIN IN HOMOGENEOUS AND HETEROGENEOUS SYSTEM [J]. Imaging Science and Photochemistry, 1996, 14(2): 144-149.
[12]	YANG JIAN-JUN, FENG LIANG-BO, ZHANG ZHI-JUN, JIN ZHEN-SHENG. ESR STUDY OF MV²⁺ PHOTOREDUCTION ON THE SURFACE OF NANOMETER-SIZED CdS [J]. Imaging Science and Photochemistry, 1995, 13(3): 227-233.
[13]	ZHANG JIN-LONG, ZHU ZHENG-HUA. STUDY ON DECAY OF ESR SIGNALS AND MECHANISMOF SUPERSENSITIZATION [J]. Imaging Science and Photochemistry, 1994, 12(4): 364-368.
[14]	WANG GUO-PING, CHEN QI-RUI, GUO LU-RONG, DAI CHAO-MING. ESR/ HOLOGRAPHIC STUDY ON PHOTOREDUCTION OF Cr(VI)INFLUENCED BY ELECTRON DONORS [J]. Imaging Science and Photochemistry, 1994, 12(1): 39-44.
[15]	WANG HAI, CHEN DE-WEN, ZHANG TONG, Xu GUANG-ZHI. STUDY OF THE PHOTO-INDUCED ELECTRON TRANSFER AND PHOTOREACTION PROCESS OF BENZYL ALCOHOL ON THE SURFACE OF TiO₂ COLLOID [J]. Imaging Science and Photochemistry, 1993, 11(4): 318-324.