Anatase/Rutile TiO2 composite prepared via sonochemical process and their photocatalytic activity

被引：28
作者：
Ibrahim, Ammar [1 ]
Mekprasart, Wanichaya [1 ]
Pecharapa, Wisanu [1 ]
机构：
[1] King Mongkuts Inst Technol Ladkrabang, Coll Nanotechnol, Dept Nanomat Engn, 1 Chalongkrung Rd, Bangkok 10520, Thailand
来源：
MATERIALS TODAY-PROCEEDINGS | 2017年 / 4卷 / 05期
关键词：
Anatase/Rutile; photocatalytic activity; sonochemical; titanium dioxide; titanium(iv) isopropoxide; THIN-FILMS; ASSISTED PROCESS; DEGRADATION; TEMPERATURE; RUTILE; NANOPARTICLES; ACID;
D O I：
10.1016/j.matpr.2017.06.110
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this work, Anatase/Rutile mixed-phase titanium dioxide (TiO2) composite powders prepared by sonochemical process which titanium (IV) isopropoxide (TTIP) were used as titanium precursor. The as-prepared powders were calcined at different temperature in range of 400 to 1000 C. TiO2 phase ratio was evaluated by X-ray diffraction technique. Phase transformation of anatase to rutile phase in TiO2 powder was initially obtained by calcined sample at 600 degrees C. The complete rutile phase was completely occurred at calcination temperature at 800 degrees C. Photocatalytic activity by TiO2 photocatalysts was analyzed via the decolorization of Rhodamine B dye solution under LED white light irradiation. Anatase/Rutile composite with properly ratio in TiO2 photocatalyst calcined at 700 degrees C performed the highest photocatalytic activity due to the enhancement of charge transfer at mixed phase interface and the decrease of electron-hole pair recombination. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：6159 / 6165
页数：7
相关论文
共 25 条
[1]   VAPOR SYNTHESIS OF TITANIA POWDER BY TITANIUM TETRACHLORIDE OXIDATION [J].
AKHTAR, MK ;
YUN, X ;
PRATSINIS, SE .
JOURNAL OF AEROSOL SCIENCE, 1991, 22 :S35-S38
[2]   Anatase/rutile bi-phasic titanium dioxide nanoparticles for photocatalytic applications enhanced by nitrogen doping and platinum nano-islands [J].
Bear, Joseph C. ;
Gomez, Virginia ;
Kefallinos, Nikolaos S. ;
McGettrick, James D. ;
Barron, Andrew R. ;
Dunnill, Charles W. .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2015, 460 :29-35
[3]   Preparation of TiO2 films by CVD method and its electrical, structural and optical properties [J].
Bessergenev, VG ;
Khmelinskii, IV ;
Pereira, RJF ;
Krisuk, VV ;
Turgambaeva, AE ;
Igumenov, IK .
VACUUM, 2002, 64 (3-4) :275-279
[4]   Sol-Gel Preparation of Hydrophobic Silica Antireflective Coatings with Low Refractive Index by Base/Acid Two-Step Catalysis [J].
Cai, Shuang ;
Zhang, Yulu ;
Zhang, Hongli ;
Yan, Hongwei ;
Lv, Haibing ;
Jiang, Bo .
ACS APPLIED MATERIALS & INTERFACES, 2014, 6 (14) :11470-11475
[5]  
Dawson M., 2013, NAT MATER, V12, P798
[6]  
Grant M. H., 1997, KIRK OTHMER ENCY CHE, V24, P225
[7]   Optical and structural properties of nanocrystalline anatase (TiO2) thin films prepared by non-aqueous sol-gel dip-coating [J].
Haimi, E. ;
Lipsonen, H. ;
Larismaa, J. ;
Kapulainen, M. ;
Krzak-Ros, J. ;
Hannula, S. -P. .
THIN SOLID FILMS, 2011, 519 (18) :5882-5886
[8]   Review of the anatase to rutile phase transformation [J].
Hanaor, Dorian A. H. ;
Sorrell, Charles C. .
JOURNAL OF MATERIALS SCIENCE, 2011, 46 (04) :855-874
[9]   Fabrication of efficient visible light activated Cu-P25-graphene ternary composite for photocatalytic degradation of methyl blue [J].
Jin, Zheng ;
Duan, Wubiao ;
Liu, Bo ;
Chen, Xidong ;
Yang, Feihua ;
Guo, Jianping .
APPLIED SURFACE SCIENCE, 2015, 356 :707-718
[10]   Effect of Sonication Time and Calcination Temperature on Physical Properties of Titanium Dioxide Synthesized via Sonochemical-assisted Process [J].
Kahattha, Chokchai ;
Vittayakorn, Naratip ;
Pecharapa, Wisanu .
ADVANCES IN MATERIAL SCIENCE AND TECHNOLOGY, 2013, 802 :252-256
123