Effects of constituents in photo/biocatalytic hydrogen production system using experimental design tool

Hyunku Joo, Yongho Jang, Sangbong Lee, Yong Gun Shul

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

This study photoelectrochemically and photocatalytically examined the effects of constituents in photo/biocatalytic hydrogen production system, being eventually composed of photoanode and cathode, just after that preliminary mixed slurry system had been investigated to see the insights of the hybrid system. Experiments with the mixed slurry system revealed the following four cases; direct interphase electron transfer from photocatalyst to enzyme in the absence of electron relay was a rate-determining step, enzyme was deactivated by irradiated light, physical properties of photocatalysts, obtained by a couple of preparation methods, seldom affected the production rate, and each material needs different reaction conditions such as pH and temperature. These results led the study to the system where the materials were separated into photoanode and cathode and each material has been studied individually and simultaneously to get the possible optimum condition: for the former photoanodic current and photovoltage were measured for each prepared photocatalysts and for the latter change in the amount of evolved hydrogen was checked according to external bias. Then both reaction parts were connected through Nafion membrane and salt bridge to perform light-induced hydrogen production for the hybrid system. No synergistic effect of the system happened with Nafion, but promising result was obtained with salt bridge. Detailed investigations are under way.

Original languageEnglish
Title of host publicationEco-Materials Processing and Design - Proceedings of the 6th Pacific Rim Conference on Ceramic and Glass Technology, PacRim6
Pages139-153
Number of pages15
Publication statusPublished - 2006 Jul 24
Event6th Pacific Rim Conference on Ceramic and Glass Technology, PacRim6 - Maui, HI, United States
Duration: 2005 Sep 112005 Sep 16

Publication series

NameCeramic Transactions
Volume193
ISSN (Print)1042-1122

Other

Other6th Pacific Rim Conference on Ceramic and Glass Technology, PacRim6
CountryUnited States
CityMaui, HI
Period05/9/1105/9/16

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All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

Cite this

Joo, H., Jang, Y., Lee, S., & Shul, Y. G. (2006). Effects of constituents in photo/biocatalytic hydrogen production system using experimental design tool. In Eco-Materials Processing and Design - Proceedings of the 6th Pacific Rim Conference on Ceramic and Glass Technology, PacRim6 (pp. 139-153). (Ceramic Transactions; Vol. 193).