首页> 中文学位 >Nitrogen-doped Titanium Dioxide(N-doped TiO2)for Visible Light Photocatalysis
【6h】

Nitrogen-doped Titanium Dioxide(N-doped TiO2)for Visible Light Photocatalysis

代理获取

目录

声明

Abstract

Contents

Chapter 1 Literature Review

1.1 Introduction

1.2 The Plausible Mechanism of Photocatalysis Over TON

1.3 Methods of Preparing TON

1.3.1 Chemical Methods

1.4 Applications of TON

1.5 Summary and Future Prospects for TON

Chapter 2

2.2.Synthesis Procedures

2.3.Physical and Analytical Measurements

2.4.Photocatalysis Test

Chapter 3

3.1.FT-IR analysis

3.2.Thermal Analysis

3.3.Structure analysis(XRD)

3.4.Mechanism of N-doped TiO2 Formation

3.5.XPS Results

3.6.UV—Vis Absorbance of Photocatalysts

3.7.Surface area and pore size

3.8.TEM analysis

4.1 Photocatalytic activity

4.1.3.Photocatalytic Test Under Visible Light Illumination over MDAC0019

4.1.4.Photocatalytic Test Under Visible Light Illumination over MDAC020

4.1.5.Photocatalytic Test Under Visible Light Illumination over MDAC021

Chapter 5 Conclusions

Reference

Acknowledgements

展开▼

摘要

Mesoporous nitrogen-doped titania(TON)anatase phase photocatalysts were successfully prepared using sol-gel and solvent evaporation induced self-assembly(SEISA)methods.Dodecylamine(DDA)and diethylenetriamine(DETA)were used as surfactants for endowing mesoporosity,complexing agents,base catalysts for polymerizing titania source(titanium isopropoxide),and sources for nitrogen doping.It was found that the titania source and the amount of DDA and DETA influenced strongly the textural[specific surface area(SBET),pore volume,and pore size],optical[UV-Vis absorbance and band gap energy(Eg)],morpholoical properties,and photocatalytic activity of TON photocatalysts.X-ray photoelectron spectroscopy study revealed the presence of substitutional and interstitial oxidized nitrogen dopings.All TON photocatalysts showed superiority in degrading methylene blue(MB)dye than the commerciallyavailable Fluka titania anatase phase catalyst under visilbe irradiation between400nm and800nm.TON photocatalyst with the highest SBET and the smallest Eg exhibited the fastest rate for the photodegradation of MB.

著录项

相似文献

  • 中文文献
  • 外文文献
  • 专利
代理获取

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号