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长春理工大学 化学与环境工程学院,吉林 长春,130022
纸质出版日期:2017-1-5,
收稿日期:2016-7-25,
修回日期:2016-10-8,
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伞靖, 魏长平, 孙双等. Zn、Cu共掺杂TiO<sub>2</sub>:SiO<sub>2</sub>薄膜材料的光学性能研究[J]. 发光学报, 2017,38(1): 27-31
SAN Jing, WEI Chang-ping, SUN Shuang etc. Optical Properties of Zn and Cu Co-doped TiO<sub>2</sub>: SiO<sub>2</sub> Thin Film Materials[J]. Chinese Journal of Luminescence, 2017,38(1): 27-31
伞靖, 魏长平, 孙双等. Zn、Cu共掺杂TiO<sub>2</sub>:SiO<sub>2</sub>薄膜材料的光学性能研究[J]. 发光学报, 2017,38(1): 27-31 DOI: 10.3788/fgxb20173801.0027.
SAN Jing, WEI Chang-ping, SUN Shuang etc. Optical Properties of Zn and Cu Co-doped TiO<sub>2</sub>: SiO<sub>2</sub> Thin Film Materials[J]. Chinese Journal of Luminescence, 2017,38(1): 27-31 DOI: 10.3788/fgxb20173801.0027.
用溶胶-凝胶法制得Zn、Cu共掺杂的TiO
2
∶SiO
2
凝胶,旋转法于玻璃基底涂膜,制得Zn、Cu共掺杂的TiO
2
∶SiO
2
薄膜,探讨了煅烧温度、煅烧时间及掺杂比例对其结构、形貌和性能的影响。采用XRD、FESEM、FTIR等测试技术对薄膜进行表征,并考察了其对甲基橙的光催化降解性能。XRD测试结果显示:薄膜样品的晶型为锐钛矿型,结晶良好。SEM谱图显示:薄膜微粒粒径小,分布均匀,表面平整、致密且无明显裂痕;紫外-可见光谱(UV-Vis)表明:Zn、Cu共掺杂的TiO
2
∶SiO
2
薄膜在紫外区和可见光区的吸光度明显增加,提高了对光的利用率;光催化性能测试表明:与纯相TiO
2
对比,Zn、Cu共掺杂的TiO
2
∶SiO
2
薄膜对甲基橙的光催化降解率有较大提高,在600℃下焙烧2 h的掺杂的量比为
n
(Ti)∶
n
(Si)∶
n
(Zn)∶
n
(Cu)=3∶2∶1.5∶4的薄膜样品光催化降解率最高。
By using sol-gel method
Zn and Cu co-doped TiO
2
:SiO
2
gel was prepared and coated on glass substrates by spin coating method. Under the same experimental conditions
the effects of the different doped proportion of Zn and Cu
calcined temperature and time on the structure
morphology and property of Zn and Cu co-doped TiO
2
:SiO
2
films were discussed. By using XRD
FESEM
FTIR
etc
.
the films were characterized and the photocatalytic degradation performances on methyl orange were researched. XRD patterns demonstrate that the films are anatase structure and have high crystallization. SEM images show that the film surface has no crack and its particles have small size. UV-Vis absorption spectra indicate that the absorbance of the film is very high in the visible and ultraviolet region. The degradation experiments under UV light illustrate that the photocatalysis degradation efficiency of the film on methyl orange increases greatly compare with pure TiO
2
film. The degradation rate reaches the highest for the film with the molar ratio of
n
(Ti):
n
(Si):
n
(Zn):
n
(Cu)=3:2:1.5:4 calcined at 600℃ for 2 h.
溶胶-凝胶TiO2:SiO2共掺杂光催化薄膜
sol-gelTiO2:SiO2co-dopedphotocatalysisthin film
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马志丽. 二氧化钛纳米光催化剂的制备及性能研究[D].长沙:湖南大学, 2013. MA Z L. Preparation and Properties of TiO</em>2 of Nano Photocatalyst [D]. Changsha:Hunan University, 2013. (in Chinese)
王国栋, 魏长平, 何瑞英, 等. Cu掺杂SnO2/TiO2复合薄膜的制备及性能研究[J]. 发光学报, 2015, 36(9):996-1000. WANG G D, WEI C P, HE R Y. et al.. Preparation and properties of Cu doped SnO2/TiO2composite film[J]. Chin. J. Lumin., 2015, 36(9):996-1000. (in Chinese)
孙先森, 孙琼, 谢翠翠, 等. 实验条件对二氧化钛纳米棒形貌和光电流密度的影响[J]. 发光学报, 2013, 34(3):257-261. SUN X S, SUN Q, XIE C C, et al.. Effects of experimental conditions on the morphology and photocurrent density of TiO2 nanorods[J]. Chin. J. Lumin., 2013, 34(3):257-261. (in Chinese)
ZHAO P J, WU R, HOU J, etal.. One-step hydrothermal synthesis and visible-light photocatalytic activiyt of ultrafine Cu-nanodot-modified TiO2 nanotubes[J]. Acta Phys. Chim. Sinica, 2012, 28(8):1971-1977.
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