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长春工业大学 材料科学与工程学院,吉林 长春,130012
纸质出版日期:2014-12-3,
收稿日期:2014-9-22,
修回日期:2014-11-4,
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杨悦, 赵翠真, 于晨光等. Pt/TiO<sub>2</sub>复合纳米结构形貌控制及光催化动力学[J]. 发光学报, 2014,35(12): 1449-1454
YANG Yue, ZHAO Cui-zhen, YU Chen-guang etc. Morphological Control of TiO<sub>2</sub> Nanostructures and Photocatalytic Dynamics[J]. Chinese Journal of Luminescence, 2014,35(12): 1449-1454
杨悦, 赵翠真, 于晨光等. Pt/TiO<sub>2</sub>复合纳米结构形貌控制及光催化动力学[J]. 发光学报, 2014,35(12): 1449-1454 DOI: 10.3788/fgxb20143512.1449.
YANG Yue, ZHAO Cui-zhen, YU Chen-guang etc. Morphological Control of TiO<sub>2</sub> Nanostructures and Photocatalytic Dynamics[J]. Chinese Journal of Luminescence, 2014,35(12): 1449-1454 DOI: 10.3788/fgxb20143512.1449.
制备了3种不同形貌的TiO
2
结构:纳米杯、(001)纳米片、(100)纳米片
并进一步与Pt纳米粒子复合以去除污水中的有机染料.透射电镜结果证实了3种TiO
2
纳米结构的形成
观察到了附着其上的Pt纳米粒子.使用XRD确定了3种TiO
2
纳米结构均为锐钛矿相.以罗丹明B作为有机染料
检测了不同形貌TiO
2
及其Pt复合物的光催化性能.结果表明:纳米杯状的Pt/TiO
2
在罗丹明B溶液中表现出最高降解率
在1.5 h内降解率可达99.1%.同时讨论了TiO
2
及其复合物的光降解机理.
Pt/TiO
2
nanocomposites with three different TiO
2
morphologies (nanocup
(001) nanosheet
(100) nanosheet) were prepared for removing dye from wastewater. Transmission electron microscopy results confirmed the formation of nanocup
(001) nanosheet
(100) nanosheet of TiO
2
and the presence of Pt nanoparticles attached on TiO
2
nanostructure. All TiO
2
samples are anatase indicated by X-ray diffraction. The as-prepared Pt/TiO
2
nanocomposites were used as adsorbent to remove dye from wastewater using the organic dye Rhodamine B as adsorbate. The nano-cup Pt/TiO
2
sample exhibited the best efficiency on the degradation rate of Rhodamine B
and the removal ratio of the dye gets to 99.1% less than 1.5 h. Adsorption kinetics and isotherm were investigated and the possible mechanism of the different photocatalytic efficiency was suggested.
Pt/TiO2光催化纳米杯纳米片
Pt/TiO2photocatalysisnanocupnanosheet
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