用水热法合成得到纳米TiO2/MnTiO3复合材料,并用X射线衍射(XRD)、紫外-可见光谱(UV-VIS DRS)、拉曼光谱、表面光电压能谱对制得的样品进行表征.结果表明:复合材料的衍射峰在48.(1)(101)处表现出明显的红移,在可见光和紫外区域的吸收均有所改变,拉曼光谱在619cm-1处出现明显的振动峰值,表面光电压强度有所下降,但表现出明显的红移.
In this work,nano-TiO2/MnTiO3 composites with different molar ratios of MnTiO3 and TiO2 are synthesized by hydro-thermal method.Then samples are characterized by X-ray powder diffraction(XRD),ultraviolet-visible diffuse reflectance spectra(UV-VIS DRS),Raman spectra and surface photovoltage spectra(SPS),respectively.As a result,the diffraction peak 48.1°(101) shows an obvious red shift and Raman spectra shows an obvious vibration peak at 619cm-1.The absorption of the region changes in both ultraviolet and visible light.Photovoltage on the surface becomes weaker but also shows an obvious red shift.
参考文献
| [1] | Linda Zou;Yonggang Luo;Martin Hooper .Removal of VOCs by photocatalysis process using adsorption enhanced TiO_2-SiO_2 catalyst[J].Chemical Engineering and Processing,2006(11):959-964. |
| [2] | 蒋勤,张守臣,王立秋,刘长厚.钙钛矿型光催化剂的制备及应用研究进展[J].化工进展,2006(02):136-139. |
| [3] | 张凌燕,余佳,袁继祖.二氧化钛/累托石复合光催化剂制备及对酸性红的催化降解试验研究[J].非金属矿,2004(05):36-38. |
| [4] | Xingwang Zhang;Minghua Zhou;Lecheng Lei .Co-deposition of photocatalytic Fe doped TiO_2 coatings by MOCVD[J].Catalysis Communications,2006(7):427-431. |
| [5] | Ngamsinlapasathian S;Sreethawong T;Suzuki Y;Yoshikawa S .Single- and double-layered mesoporous TiO2/P25 TiO2 electrode for dye-sensitized solar cell[J].Solar Energy Materials and Solar Cells: An International Journal Devoted to Photovoltaic, Photothermal, and Photochemical Solar Energy Conversion,2005(2):269-282. |
| [6] | Song-Zhe Chen;Peng-Yi Zhang;Da-Ming Zhuang;Wan-Peng Zhu .Investigation of nitrogen doped TiO_2 photocatalytic films prepared by reactive magnetron sputtering[J].Catalysis Communications,2004(11):677-680. |
| [7] | Harada M;Einaga H .Photochemical deposition of platinum on TiO2 by using poly(vinylalcohol) as an electron donor and a protecting polymer[J].Catalysis Communications,2004,5(02):63. |
| [8] | Won-Wook So;Kwang-Je Kim;Sang-Jin Moon .Photo-production of hydrogen over the CdS-TiO_2 nano-composite particulate films treated with TiCl_4[J].International journal of hydrogen energy,2004(3):229-234. |
| [9] | Gurunathan K;Mol J .Photobiocatalytic production of hydrogen using sensitized TiO2-MV2+ system coupled[J].Rhodopseu Domonas Capsulata Catal A:Chem,2000,156(1-2):59. |
| [10] | Asahi R et al.Visible-light photocatalysis in nitrogen-doped titanium oxides[J].Science,2001,293(13):269. |
| [11] | Rajesh J.Tayade;Ramchandra G.Kulkarni;Raksh.V.Jasra .Photocatalytic Degradation of Aqueous Nitrobenzene by Nanocrystalline TiO_2[J].Industrial & Engineering Chemistry Research,2006(3):922-927. |
| [12] | Wang C;Xu BQ;Wang XM;Zhao JC .Preparation and photocatalytic activity of ZnO/TiO2/SnO2 mixture[J].International Journal of Quantum Chemistry,2005(11):3500-3506. |
| [13] | Kronik L et al.Surface photovoltage phenomena:Theory,experiment,and applications[J].Surface Science Reports,1999,37:1. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%