skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Three-dimensional ruthenium-doped TiO 2 sea urchins for enhanced visible-light-responsive H 2 production

Abstract

Here, three-dimensional (3D) monodispersed sea urchin-like Ru-doped rutile TiO 2 hierarchical architectures composed of radially aligned, densely-packed TiO 2 nanorods have been successfully synthesized via an acid-hydrothermal method at low temperature without the assistance of any structure-directing agent and post annealing treatment. The addition of a minuscule concentration of ruthenium dopants remarkably catalyzes the formation of the 3D urchin structure and drives the enhanced photocatalytic H 2 production under visible light irradiation, not possible on undoped and bulk rutile TiO 2. Increasing ruthenium doping dosage not only increases the surface area up to 166 m 2 g –1 but also induces enhanced photoresponse in the regime of visible and near infrared light. The doping introduces defect impurity levels, i.e. oxygen vacancy and under-coordinated Ti 3+, significantly below the conduction band of TiO 2, and ruthenium species act as electron donors/acceptors that accelerate the photogenerated hole and electron transfer and efficiently suppress the rapid charge recombination, therefore improving the visible-light-driven activity.

Authors:
 [1];  [2];  [2];  [3];  [4];  [1];  [5];  [4];  [1];  [1];  [1];  [2]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States); Stony Brook Univ., Stony Brook, NY (United States)
  3. Univ. Politecnia de Catalunya, Barcelona (Spain)
  4. Binghamton Univ., Binghamton, NY (United States)
  5. Argonne National Lab. (ANL), Argonne, IL (United States)
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1337641
Report Number(s):
BNL-113278-2016-JA
Journal ID: ISSN 1463-9076; PPCPFQ; R&D Project: CO040; KC0302010
Grant/Contract Number:  
SC00112704
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Chemistry Chemical Physics. PCCP (Print)
Additional Journal Information:
Journal Name: Physical Chemistry Chemical Physics. PCCP (Print); Journal Volume: 18; Journal Issue: 23; Journal ID: ISSN 1463-9076
Publisher:
Royal Society of Chemistry
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Nguyen-Phan, Thuy -Duong, Luo, Si, Vovchok, Dimitriy, Llorca, Jordi, Sallis, Shawn, Kattel, Shyam, Xu, Wenqian, Piper, Louis F. J., Polyansky, Dmitry E., Senanayake, Sanjaya D., Stacchiola, Dario J., and Rodriguez, Jose A.. Three-dimensional ruthenium-doped TiO2 sea urchins for enhanced visible-light-responsive H2 production. United States: N. p., 2016. Web. doi:10.1039/c6cp00472e.
Nguyen-Phan, Thuy -Duong, Luo, Si, Vovchok, Dimitriy, Llorca, Jordi, Sallis, Shawn, Kattel, Shyam, Xu, Wenqian, Piper, Louis F. J., Polyansky, Dmitry E., Senanayake, Sanjaya D., Stacchiola, Dario J., & Rodriguez, Jose A.. Three-dimensional ruthenium-doped TiO2 sea urchins for enhanced visible-light-responsive H2 production. United States. doi:10.1039/c6cp00472e.
Nguyen-Phan, Thuy -Duong, Luo, Si, Vovchok, Dimitriy, Llorca, Jordi, Sallis, Shawn, Kattel, Shyam, Xu, Wenqian, Piper, Louis F. J., Polyansky, Dmitry E., Senanayake, Sanjaya D., Stacchiola, Dario J., and Rodriguez, Jose A.. Mon . "Three-dimensional ruthenium-doped TiO2 sea urchins for enhanced visible-light-responsive H2 production". United States. doi:10.1039/c6cp00472e. https://www.osti.gov/servlets/purl/1337641.
@article{osti_1337641,
title = {Three-dimensional ruthenium-doped TiO2 sea urchins for enhanced visible-light-responsive H2 production},
author = {Nguyen-Phan, Thuy -Duong and Luo, Si and Vovchok, Dimitriy and Llorca, Jordi and Sallis, Shawn and Kattel, Shyam and Xu, Wenqian and Piper, Louis F. J. and Polyansky, Dmitry E. and Senanayake, Sanjaya D. and Stacchiola, Dario J. and Rodriguez, Jose A.},
abstractNote = {Here, three-dimensional (3D) monodispersed sea urchin-like Ru-doped rutile TiO2 hierarchical architectures composed of radially aligned, densely-packed TiO2 nanorods have been successfully synthesized via an acid-hydrothermal method at low temperature without the assistance of any structure-directing agent and post annealing treatment. The addition of a minuscule concentration of ruthenium dopants remarkably catalyzes the formation of the 3D urchin structure and drives the enhanced photocatalytic H2 production under visible light irradiation, not possible on undoped and bulk rutile TiO2. Increasing ruthenium doping dosage not only increases the surface area up to 166 m2 g–1 but also induces enhanced photoresponse in the regime of visible and near infrared light. The doping introduces defect impurity levels, i.e. oxygen vacancy and under-coordinated Ti3+, significantly below the conduction band of TiO2, and ruthenium species act as electron donors/acceptors that accelerate the photogenerated hole and electron transfer and efficiently suppress the rapid charge recombination, therefore improving the visible-light-driven activity.},
doi = {10.1039/c6cp00472e},
journal = {Physical Chemistry Chemical Physics. PCCP (Print)},
number = 23,
volume = 18,
place = {United States},
year = {Mon May 23 00:00:00 EDT 2016},
month = {Mon May 23 00:00:00 EDT 2016}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 5 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides
journal, September 1976