Hydrogen production using a platinum modified TiO2 photocatalyst and an organic scavenger. Kinetic modeling

被引：27

作者：

Escobedo, Salvador ^{[1
]}

Serrano, Benito ^{[2
]}

Calzada, Alan ^{[2
]}

Moreira, Jesus ^{[1
]}

de Lasa, Hugo ^{[1
]}

机构：

[1] Univ Western Ontario, Fac Engn, CREC, London, ON, Canada

[2] Univ Autonoma Zacatecas, Fac Ciencias Quim, Zacatecas, Zac, Mexico

来源：

FUEL | 2016年 / 181卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

Near-UV light; TiO2-Pt photocatalyst; Photo-CREC water II reactor; Hydrogen; Reaction network; Langmuir-Hinshelwood kinetic modeling; AQUEOUS-SOLUTION; DEGRADATION; ADSORPTION; ACID; DECOMPOSITION; DYES;

D O I：

10.1016/j.fuel.2016.04.081

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

This contribution reports the kinetics of the photocatalytic production of hydrogen using a modified DP25 (TiO2)-1 wt% Pt and ethanol as an organic scavenger. This study is carried out in a Photo-CREC water II Reactor with a specially designed H-2 collector tank. Experiments are developed under the following conditions: (a) An optimum photocatalyst loading, (b) Near-UV irradiation, (c) An acid pH and (d) Using ethanol as an organic scavenger. This research considers an "In Series-Parallel" kinetics to describe the photocatalytic conversion of ethanol (the organic scavenger) and of other carbon containing product species. Rate equations considered are of the Langmuir-Hinshelwood type leading to a set of ordinary differential equations. Furthermore, it is observed that hydrogen formation is a near zero order reaction. Regression analyses are used to calculate kinetic parameters with a cross-correlation matrix and 95% confidence intervals. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：438 / 449

页数：12

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