Photoelectrochemical hydrogen generation and concomitant organic dye oxidation under TiO2 nanotube

M. V.B. Zanoni, T. T. Guaraldo

Research output: Chapter or section in a book/report/conference proceedingChapter in a published conference proceeding

4 Citations (SciVal)

Abstract

The present work describes the photoelectrochemical hydrogen generation during a photodegradation of an organic compound. For this, it was chosen the reactive black 5 dye as a model of organic pollutant and its oxidation under TiO2 nanotube in a two compartment cell. The photoelectrocatalysis is conducted in 0.1 mol L-1 Na2SO4 pH 6 medium under photoanode biased at +1.0 V (SCE) and activated by UV and visible light using 150W Xe-Arc lamp (Oriel) and 125 W Hg lamp (Osram). The concomitant hydrogen production was monitored at cathodic compartment using a Pt cathode. Using optimized condition of Na2SO4 0.1 mol L-1 pH 6 as supporting electrolyte, applied potential of +1.0V it was verified 100% of discoloration and 72% of TOC removal of 1.0 × 10-5 mol L-1 Reactive Black 5 dye after 120 min of treatment (rate constant of 10.6 × 10-2 min-1). The concomitant hydrogen generation was 44% in this condition.

Original languageEnglish
Title of host publicationElectrocatalysis 6
PublisherElectrochemical Society, Inc.
Pages63-70
Number of pages8
Edition36
ISBN (Print)9781607684244
DOIs
Publication statusPublished - 31 Dec 2013
EventSymposium on Electrocatalysis 6 - 22nd ECS Meeting/PRiME 2012 - Honolulu, HI, USA United States
Duration: 7 Oct 201212 Oct 2012

Publication series

NameECS Transactions
Number36
Volume50
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Conference

ConferenceSymposium on Electrocatalysis 6 - 22nd ECS Meeting/PRiME 2012
Country/TerritoryUSA United States
CityHonolulu, HI
Period7/10/1212/10/12

ASJC Scopus subject areas

  • Engineering(all)

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