Research on Photocatalytic Hydrogen Production of Eosin Sensitized Different Structure of TiO<sub>2</sub>

郭鹏慧; 郭烈锦

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Research on Photocatalytic Hydrogen Production of Eosin Sensitized Different Structure of TiO₂

更新时间：2025-12-08

- Research on Photocatalytic Hydrogen Production of Eosin Sensitized Different Structure of TiO₂
- Vol. 42, Issue 7, Pages: 900-903(2008)
- 作者机构：
  
  西安交通大学动力工程多相流国家重点实验室,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： TQ426.62
- Online First：10 July 2008，
  
  Published：2008
- 稿件说明：
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郭鹏慧, 郭烈锦. Research on Photocatalytic Hydrogen Production of Eosin Sensitized Different Structure of TiO₂[J]. 2008, 42(7): 900-903.
DOI：

郭鹏慧, 郭烈锦. Research on Photocatalytic Hydrogen Production of Eosin Sensitized Different Structure of TiO₂[J]. 2008, 42(7): 900-903. DOI：

摘要

采用超声法制备了TiO

的纳米粒子

经处理后得到不同晶体结构的TiO

.使用硅烷偶联剂修饰TiO

表面

加入脱水剂和Eosin

在蒸馏条件下

TiO

表面的氨基与Eosin分子中的羟基脱水后使得Eosin分子稳定吸附在TiO

表面.Eosin的敏化使TiO

对光的响应扩展到可见光区

并产生可见光解水产氢活性.紫外-可见漫反射光谱结果说明

锐钛矿型催化剂和混晶结构催化剂的能隙分别为2.0 eV和2.1 eV.在三乙醇胺水溶液中进行可见光下的光解水产氢实验

结果表明混晶结构的催化剂无产氢活性

锐钛矿型催化剂的光解水产氢活性最高

420 nm处的量子效率为2.32%

480 nm处的量子效率为2.86%

产氢速率在60 h内基本保持稳定.

Abstract

The ultrasonic method is used to synthesize titanium oxidenanocrystals. Productions with different crystal-structure are generated by calcination at different high temperature. The silane-coupling reagent is used to construct a stable absorbance of eosin on TiO

. The results of Uv-Vis diffraction spectrum indicate that the bandgaps for anatase-production and mixed-structure-productions are 2.1eV and 2.0 eV respectively. But the eosin sensitized TiO

with mixed-structure has no activity in triethanolamine water solution because of small surface areas

while the anatase-structure photocatalyst has a comparatively high activity. It has an ap

parent quantum efficiency of 2.32% at 420 nm and 2.86% at 480 nm.

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Keywords

references

IVELS S, SHANKARM V, ICHAMYM P, et al. Steady hydrogen evolution from water on Eosin Y-fixed TiO2 photocatalyst using a silane-coupling reagent under visible light irradiation [J]. Journal of Photochemistry and Photobiology A: Chemistry, 2000, 137(1): 63-69.

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Related Institution

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Research on Photocatalytic Hydrogen Production of Eosin Sensitized Different Structure of TiO2

DOI：

摘要

Abstract

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Research on Photocatalytic Hydrogen Production of Eosin Sensitized Different Structure of TiO₂