Preparation and characterization of carbon nanoparticles loaded TiO2 and its catalytic activity driven by natural sunlight

被引：82

作者：

Velmurugan, R. ^{[1
]}

Krishnakumar, B. ^{[1
]}

Subash, B. ^{[1
]}

Swaminathan, M. ^{[1
]}

机构：

[1] Annamalai Univ, Photocatalysis Lab, Dept Chem, Annamalainagar 608002, Tamil Nadu, India

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2013年 / 108卷

关键词：

Carbon nano-particle; TiO2; Photocatalysis; Solar light; Reactive Red 120; Dye sensitization; DOPED TIO2; PHOTOCATALYTIC ACTIVITY; TITANIUM-DIOXIDE; DEGRADATION; ANATASE; TEMPERATURE; ADSORPTION; FILMS;

D O I：

10.1016/j.solmat.2012.09.018

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Carbon nanoparticle loaded TiO2 (CNP-TiO2) was successfully synthesized by the sonochemical method. The catalyst was characterized by XRD, XPS, TEM, DRS, Photoluminescence spectroscopy (PL), CV and BET surface area measurements. XPS analysis reveals the presence of Carbon nanoparticles in CNP-TiO2. A decrease of photoluminescence intensity of CNP-TiO2 when compared to TiO2 indicates the suppression of electron-hole recombination by the loaded carbon nano-particles. The photocatalytic activity of CNP-TiO2 for degradation of Reactive Red 120 using solar light is higher than TiO2-P25 and prepared TiO2. A dual mechanism involving electron-hole separation by CNP and dye sensitization is proposed for the degradation. CNP-TiO2 is also found to be stable and reusable. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：205 / 212

页数：8

共 34 条

[1] Visible-light photocatalysis in nitrogen-doped titanium oxides [J].

Asahi, R ;

Morikawa, T ;

Ohwaki, T ;

Aoki, K ;

Taga, Y .

SCIENCE, 2001, 293 (5528) :269-271

[2] A metal dusting process for preparing nano-sized carbon materials and the effects of acid post-treatment on their hydrogen storage performance [J].

Chang, Jeng-Kuei ;

Tsai, Heng-Yi ;

Tsai, Wen-Ta .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2008, 33 (22) :6734-6742

[3] Microstructure characterization and photocatalytic activity of mesoporous TiO2 films with ultrafine anatase nanocrystallites [J].

Chen, Yongjun ;

Stathatos, Elias ;

Dionysiou, Dionysios D. .

SURFACE & COATINGS TECHNOLOGY, 2008, 202 (10) :1944-1950

[4] Synthesis and characterization of nitrogen-doped TiO2 nanophotocatalyst with high visible light activity [J].

Cong, Ye ;

Zhang, Jinlong ;

Chen, Feng ;

Anpo, Masakazu .

JOURNAL OF PHYSICAL CHEMISTRY C, 2007, 111 (19) :6976-6982

[5] Preparation and characterization of Cu2O/TiO2 nano-nano heterostructure photocatalysts [J].

Huang, Lei ;

Peng, Feng ;

Wang, Hongjuan ;

Yu, Hao ;

Li, Zhong .

CATALYSIS COMMUNICATIONS, 2009, 10 (14) :1839-1843

[6] Carbon-doped anatase TiO2 powders as a visible-light sensitive photocatalyst [J].

Irie, H ;

Watanabe, Y ;

Hashimoto, K .

CHEMISTRY LETTERS, 2003, 32 (08) :772-773

[7] Synthesis and photocatalytic properties of hierarchical metal nanoparticles/ZnO thin films hetero nanostructures assisted by diblock copolymer inverse micellar nanotemplates [J].

Jang, Yoon Hee ;

Kochuveedu, Saji Thomas ;

Cha, Min-Ah ;

Jang, Yu Jin ;

Lee, Ji Yong ;

Lee, Jieun ;

Lee, Juyon ;

Kim, Jooyong ;

Ryu, Du Yeol ;

Kim, Dong Ha .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2010, 345 (01) :125-130

[8] EFFECTS OF ALTERVALENT CATION DOPING OF TIO2 ON ITS PERFORMANCE AS A PHOTOCATALYST FOR WATER CLEAVAGE [J].

KARAKITSOU, KE ;

VERYKIOS, XE .

JOURNAL OF PHYSICAL CHEMISTRY, 1993, 97 (06) :1184-1189

[9] Efficient photochemical water splitting by a chemically modified n-TiO2 2 [J].

Khan, SUM ;

Al-Shahry, M ;

Ingler, WB .

SCIENCE, 2002, 297 (5590) :2243-2245

[10] Visible light driven V-doped TiO2 photocatalyst and its photooxidation of ethanol [J].

Klosek, S ;

Raftery, D .

JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (14) :2815-2819

← 1 2 3 4 →