In situ L-hydroxyproline functionalization and enhanced photocatalytic activity of TiO2 nanorods

被引：25

作者：

Jia, Huimin ^{[1
,2
]}

Xiao, Wen-Jing ^{[1
]}

Zhang, Lizhi ^{[1
]}

Zheng, Zhi ^{[2
]}

Zhang, Hailu ^{[3
]}

Deng, Feng ^{[3
]}

机构：

[1] Cent China Normal Univ, Minist Educ, Coll Chem, Key Lab Pesticide & Chem Biol, Wuhan 430079, Peoples R China

[2] Xuchang Univ, Inst Surface Micro & Nano Mat, Xuchang 461000, Peoples R China

[3] Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2008年 / 112卷 / 30期

关键词：

D O I：

10.1021/jp803002g

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this study, L-hydroxyproline-functionalized anatase TiO2 nanorods were prepared by a nonaqueous sol-gel route at 80 degrees C. The resulting samples were characterized by XRD, TEM, HRTEM, XPS, nitrogen adsorption, and UV-vis diffuse reflectance spectroscopy. The presence Of L-hydroxyproline on the TiO2 surface was confirmed by the analysis of FT-IR and C-13 NMR. It was found that the functionalization Of L-hydroxyproline could significantly enhance the photocatalytic activity of TiO2 on the degradation of rhodamine B in aqueous solution under simulated solar light. The reasons for photocatalytic activity enhancement were analyzed on the basis of characterizations. This study provides an alternative functionalization method to improve the photocatalytic activity of TiO2. Meanwhile, the modification of L-hydroxyproline on TiO2 is expected to find new applications in fields of organic catalysis, foodstuffs, cosmetics, and so on.

引用

页码：11379 / 11384

页数：6

共 45 条

[1] Biomineralization - Naturally aligned nanocrystals [J].

Alivisatos, AP .

SCIENCE, 2000, 289 (5480) :736-737

[2] Highly enhanced photoreductive degradation of perchlorinated compounds on dye-sensitized metal/TiO2 under visible light [J].

Bae, E ;

Choi, W .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2003, 37 (01) :147-152

[3] A simple route for low-temperature synthesis of mesoporous and nanocrystalline anatase thin films [J].

Bosc, F ;

Ayral, A ;

Albouy, PA ;

Guizard, C .

CHEMISTRY OF MATERIALS, 2003, 15 (12) :2463-2468

[4] Size dependent photocatalytic activity of hydrothermally crystallized titania nanoparticles on poorly adsorbing phenol in absence and presence of fluoride ion [J].

Calza, Paola ;

Pelizzetti, Ezio ;

Mogyorsi, Karoly ;

Kun, Robert ;

Dekany, Imre .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2007, 72 (3-4) :314-321

[5] Photosensitized degradation of dyes in polyoxometalate solutions versus TiO2 dispersions under visible-light irradiation:: Mechanistic implications [J].

Chen, CC ;

Zhao, W ;

Lei, PX ;

Zhao, JC ;

Serponer, N .

CHEMISTRY-A EUROPEAN JOURNAL, 2004, 10 (08) :1956-1965

[6] XAFS studies of surface structures of TiO2 nanoparticles and photocatalytic reduction of metal ions [J].

Chen, LX ;

Rajh, T ;

Wang, ZY ;

Thurnauer, MC .

JOURNAL OF PHYSICAL CHEMISTRY B, 1997, 101 (50) :10688-10697

[7] Phosphate adsorption onto TiO2 from aqueous solutions:: An in situ internal reflection infrared spectroscopic study [J].

Connor, PA ;

McQuillan, AJ .

LANGMUIR, 1999, 15 (08) :2916-2921

[8] Low-temperature synthesis of soluble and processable organic-capped anatase TiO2 nanorods [J].

Cozzoli, PD ;

Kornowski, A ;

Weller, H .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (47) :14539-14548

[9] Assembly and charge transfer in hybrid TiO2 architectures using biotin-avidin as a connector [J].

Dimitrijevic, NM ;

Saponjic, ZV ;

Rabatic, BM ;

Rajh, T .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2005, 127 (05) :1344-1345

[10] A new highly selective H2 sensor based on TiO2/PtO-Pt dual-layer films [J].

Du, XY ;

Wang, Y ;

Mu, YY ;

Gui, LL ;

Wang, P ;

Tang, YQ .

CHEMISTRY OF MATERIALS, 2002, 14 (09) :3953-3957

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