Photoelectrochemical hydrogen generation and concomitant organic dye oxidation under TiO2 nanotube

M. V.B. Zanoni; T. T. Guaraldo

doi:10.1149/05036.0063ecst

Photoelectrochemical hydrogen generation and concomitant organic dye oxidation under TiO₂ nanotube

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

Department of Chemical Engineering

São Paulo State University

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

6 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 language	English
Title of host publication	Electrocatalysis 6
Publisher	Electrochemical Society, Inc.
Pages	63-70
Number of pages	8
Edition	36
ISBN (Print)	9781607684244
DOIs	https://doi.org/10.1149/05036.0063ecst
Publication status	Published - 31 Dec 2013
Event	Symposium on Electrocatalysis 6 - 22nd ECS Meeting/PRiME 2012 - Honolulu, HI, USA United States Duration: 7 Oct 2012 → 12 Oct 2012

Publication series

Name	ECS Transactions
Number	36
Volume	50
ISSN (Print)	1938-5862
ISSN (Electronic)	1938-6737

Conference

Conference	Symposium on Electrocatalysis 6 - 22nd ECS Meeting/PRiME 2012
Country/Territory	USA United States
City	Honolulu, HI
Period	7/10/12 → 12/10/12

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

ASJC Scopus subject areas

General Engineering

Access to Document

10.1149/05036.0063ecst

Cite this

Zanoni, MVB & Guaraldo, TT 2013, Photoelectrochemical hydrogen generation and concomitant organic dye oxidation under TiO₂ nanotube. in Electrocatalysis 6. 36 edn, ECS Transactions, no. 36, vol. 50, Electrochemical Society, Inc., pp. 63-70, Symposium on Electrocatalysis 6 - 22nd ECS Meeting/PRiME 2012, Honolulu, HI, USA United States, 7/10/12. https://doi.org/10.1149/05036.0063ecst

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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.",

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N2 - 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.

AB - 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.

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