Photocatalytic decomposition of glycerol solution on TiO2 nanotube arrays (TNTA) doped with C and N to produce hydrogen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Carbon and Nitrogen-doped TNTA were synthesized by in-situ anodic oxidation of Ti using glycerol containing NH4F followed by annealing with 20% H2/Argon at 500 oC. Variation water content in the electrolyte solution (25 and 37.5 v%) and time of anodic oxidation (1, 2, 4 and 6 h) that influence the morphology of TNTA and H2 produced was examined. At water content 37.5 v% in the electrolyte solution, FESEM results indicated that the disorder with not vertically oriented of the tube were observed. For water content 25 v%, TNTA with average inner diameters of 81 to 105 nm, wall thicknesses from 15 to 27 nm and lengths from 882 to 1705 nm were synthesized for 1-6 h anodization. Morphology of TNTA such as well developed, vertically oriented, ordered and long could influence photon absorption and, therefore, influence the accumulative H2 production. The result indicated that the average inner diameter of the tubes increase as anodic oxidation time increased up to 6 h, on the other hand, the tube length reached the maximum at 4 h anodic oxidation. TNTA that anodized for 2 h, water content in the electrolyte solution 25 v% with average tube length 1570 nm showed the highest accumulative H2 production (47 mmol/m2photocatalyst).

Original languageEnglish
Title of host publicationMaterial Science and Engineering Technology V
EditorsRamesh K. Agarwal, Jean-Jacques Delaunay, Yunqiu He
PublisherTrans Tech Publications Ltd
Pages112-116
Number of pages5
ISBN (Print)9783035710281
DOIs
Publication statusPublished - 1 Jan 2017
Event5th International Conference on Material Science and Engineering Technology, ICMSET 2016 - Tokyo, Japan
Duration: 29 Oct 201631 Oct 2016

Publication series

NameMaterials Science Forum
Volume890 MSF
ISSN (Print)0255-5476

Conference

Conference5th International Conference on Material Science and Engineering Technology, ICMSET 2016
CountryJapan
CityTokyo
Period29/10/1631/10/16

Keywords

  • Anodic oxidation
  • Hydrogen
  • Photocatalytic
  • TNTA

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