Morphological Control of TiO2 Nanostructures and Photocatalytic Dynamics

YANG Yue; ZHAO Cui-zhen; YU Chen-guang; HUANG Xiao; LYU Wei

doi:10.3788/fgxb20143512.1449

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Morphological Control of TiO₂ Nanostructures and Photocatalytic Dynamics

更新时间：2020-08-12

- Morphological Control of TiO₂ Nanostructures and Photocatalytic Dynamics
- Chinese Journal of Luminescence Vol. 35, Issue 12, Pages: 1449-1454(2014)
- 作者机构：
  
  长春工业大学材料科学与工程学院,吉林长春,130012
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20143512.1449
  CLC： O439
- Received：22 September 2014，
  
  Revised：04 November 2014，
  
  Published：03 December 2014
- 稿件说明：
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杨悦, 赵翠真, 于晨光等. Pt/TiO2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 TiO2 Nanostructures and Photocatalytic Dynamics[J]. Chinese Journal of Luminescence, 2014,35(12): 1449-1454
杨悦, 赵翠真, 于晨光等. Pt/TiO2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 TiO2 Nanostructures and Photocatalytic Dynamics[J]. Chinese Journal of Luminescence, 2014,35(12): 1449-1454 DOI： 10.3788/fgxb20143512.1449.

摘要

制备了3种不同形貌的TiO

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

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

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

及其Pt复合物的光催化性能.结果表明:纳米杯状的Pt/TiO

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

及其复合物的光降解机理.

Abstract

Pt/TiO

nanocomposites with three different TiO

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

and the presence of Pt nanoparticles attached on TiO

nanostructure. All TiO

samples are anatase indicated by X-ray diffraction. The as-prepared Pt/TiO

nanocomposites were used as adsorbent to remove dye from wastewater using the organic dye Rhodamine B as adsorbate. The nano-cup Pt/TiO

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.

关键词

Keywords

references

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