One-dimensional(1D)nano-TiO2 was prepared by hydrothermal method efficiently.The prepared samples were characterized by X-ray diffraction,transmission electron microscopy and UV-Vis diffuse reflectance spectroscopy,the formation mechanism of 1D nano-TiO2 was discussed.The photocatalytic activity of the sample was tested by degradation of gaseous benzene.Research found that reaction time had a significant influence on structure and morphology of TiO2 nanomaterials.The optical absorption edges of the TiO2 nanotubes prepared by 8 h had “blue shift”.The TiO2 nanotubes showed the best photocatalytic activity with high benzene degradation rate (81%) and high concentration of CO2 (640 mg/m3) after 80 min reaction.
Ye Hongkun
,
Du Jingjing
,
Zhao Junwei
,
Cheng Xiaomin
. Preparation and photocatalytic performance of 1D nano-TiO2[J]. New Chemical Materials, 2021
, 49(4)
: 217
-220
.
DOI: 10.19817/j.cnki.issn1006-3536.2021.04.047
[1] Mchugh T,Kuder T,Fiorenza S,et al.Application of CSIA to distinguish between vapor intrusion and indoor sources of VOCs[J].Environmental Science & Technology,2011,45:5952-5958.
[2] Bai G M,Dai H X,Deng J G,et al.Porous Co3O4 nanowires and nanorods:highly active catalysts for the combustion of toluene[J].Applied Catalysis A:General,2013,450:42.
[3] Govindhan P,Pragathiswaran C.Synthesis and characterization of TiO2@SiO2-Ag nanocomposites towards photocatalytic degradation of rhodamine B and methylene blue[J].J Mater Sci:Mater Electron,2016,27:8778-8785.
[4] Paramasivam I,Jha H,Liu N,et al.A review of photocatalysis using self-organized TiO2 nanotubes and other ordered oxide nanostructures[J].Small,2012,8:3073.
[5] Hu J H,Cheng J J,Tong S Q,et al.Dye-sensitized solar cells based on P25 nanoparticles/TiO2 nanotube arrays/hollow TiO2 boxes three-layer composite film[J].J Mater Sci:Mater Electron,2016,27:5362-5370.
[6] Sajan C P,Wageh S,Al-Ghamdi A A,et al.TiO2 nanosheets with exposed {001} facets for photocatalytic applications[J].Nano Research,2016,9:3-27.
[7] Li L,Dai H T,Feng L F,et al.Enhance photoelectrochemical hydrogengeneration activity and stability of TiO2 nanorod arrays sensitized by PbS and CdS quantum dots under UV-visible light[J].Nanoscale Research Letters,2015,10:418-424.
[8] Hu Y X,Wang B Y,Zhang J Q,et al.Synthesis and photoelectrochemical response of CdS quantum dot-sensitized TiO2 nanorod array photoelectrodes[J].Nanoscale Research Letters,2013,8:222.
[9] Devan R S,Patil R A,Lin J H,et al.One-dimensional metal-oxide nanostructures:recent developments in synthesis,characterization,and applications[J].Advanced Functional Materials,2012,22:3326.
[10] Shao Z F,Yang Y Q,Liu S T,et al.Transient competition between photocatalysis and carrier recombination in TiO2 nanotube film loaded with Au nanoparticles[J].Chinese Physics B,2014,23:096102.
[11] Lin Y.Photocatalytic activity of TiO2 nanowire arrays[J].Materials Letters,2008,62:1246-1248.
[12] Yu Q Z,Wang M,Chen H Z.Fabrication of ordered TiO2 nanoribbon arrays by electrospinning[J].Materials Letters,2010,64:428-430.
[13] Wang Y,Wu Y C,Qin Y Q,et al.Rapid anodic oxidation of highly ordered TiO2 nanotube arrays[J].Journal of Alloys and Compounds,2011,509:157-160.
[14] Wu N Q,Wang J,Tafen D N,et al.Shape-enhanced photocatalytic activity of single-crystalline anatase TiO2(101) nanobelts[J].Journal of the American Chemical Society,2010,132:6679-6685.
[15] Du G H,Chen Q,Che R C,et al.Preparation and structure analysis of titanium oxide nanotubes[J].Applied Physics Letters,2001,79:3702.
[16] Sun X M,Li Y D.Synthesis and characterization of ion-exchangeable titanate nanotubes[J].Chemistry-A European Journal,2003,9:2229.
[17] Yao B D,Chan Y F,Zhang X Y.Formation mechanism of TiO2 nanotubes[J].Applied Physics Letters,2003,82:281-283.