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Title: Titania Composites with 2 D Transition Metal Carbides as Photocatalysts for Hydrogen Production under Visible-Light Irradiation

In the MXenes family of two-dimensional transition-metal carbides there were successful demonstrations of co-catalysts with rutile TiO 2 for visible-light-induced solar hydrogen production from water splitting. The physicochemical properties of Ti 3C 2T x MXene coupled with TiO 2 were investigated by a variety of characterization techniques. The effect of the Ti 3C 2T x loading on the photocatalytic performance of the TiO 2/Ti 3C 2T x composites was elucidated. Moreover, with an optimized Ti 3C 2T x content of 5 wt %, the TiO 2/Ti 3C 2T x composite shows a 400 % enhancement in the photocatalytic hydrogen evolution reaction compared with that of pure rutile TiO 2. We also expanded our exploration to other MXenes (Nb 2CT x and Ti 2CT x) as co-catalysts coupled with TiO 2, and these materials also exhibited enhanced hydrogen production. These results manifest the generality of MXenes as effective co-catalysts for solar hydrogen production.
Authors:
 [1] ;  [1] ;  [2] ;  [3] ;  [4] ; ORCiD logo [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Georgia Inst. of Technology, Atlanta, GA (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. Materials Science Technology Division, Oak Ridge National Laboratory, Oak Ridge TN 37831 USA
  4. Wake Forest Univ., Winston-Salem, NC (United States)
Publication Date:
Grant/Contract Number:
AC05-00OR22725
Type:
Accepted Manuscript
Journal Name:
ChemSusChem
Additional Journal Information:
Journal Volume: 9; Journal Issue: 12; Journal ID: ISSN 1864-5631
Publisher:
ChemPubSoc Europe
Research Org:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE
OSTI Identifier:
1257896
Alternate Identifier(s):
OSTI ID: 1401437

Wang, Hui, Peng, Rui, Hood, Zachary D., Naguib, Michael, Adhikari, Shiba P., and Wu, Zili. Titania Composites with 2 D Transition Metal Carbides as Photocatalysts for Hydrogen Production under Visible-Light Irradiation. United States: N. p., Web. doi:10.1002/cssc.201600165.
Wang, Hui, Peng, Rui, Hood, Zachary D., Naguib, Michael, Adhikari, Shiba P., & Wu, Zili. Titania Composites with 2 D Transition Metal Carbides as Photocatalysts for Hydrogen Production under Visible-Light Irradiation. United States. doi:10.1002/cssc.201600165.
Wang, Hui, Peng, Rui, Hood, Zachary D., Naguib, Michael, Adhikari, Shiba P., and Wu, Zili. 2016. "Titania Composites with 2 D Transition Metal Carbides as Photocatalysts for Hydrogen Production under Visible-Light Irradiation". United States. doi:10.1002/cssc.201600165. https://www.osti.gov/servlets/purl/1257896.
@article{osti_1257896,
title = {Titania Composites with 2 D Transition Metal Carbides as Photocatalysts for Hydrogen Production under Visible-Light Irradiation},
author = {Wang, Hui and Peng, Rui and Hood, Zachary D. and Naguib, Michael and Adhikari, Shiba P. and Wu, Zili},
abstractNote = {In the MXenes family of two-dimensional transition-metal carbides there were successful demonstrations of co-catalysts with rutile TiO2 for visible-light-induced solar hydrogen production from water splitting. The physicochemical properties of Ti3C2Tx MXene coupled with TiO2 were investigated by a variety of characterization techniques. The effect of the Ti3C2Tx loading on the photocatalytic performance of the TiO2/Ti3C2Tx composites was elucidated. Moreover, with an optimized Ti3C2Tx content of 5 wt %, the TiO2/Ti3C2Tx composite shows a 400 % enhancement in the photocatalytic hydrogen evolution reaction compared with that of pure rutile TiO2. We also expanded our exploration to other MXenes (Nb2CTx and Ti2CTx) as co-catalysts coupled with TiO2, and these materials also exhibited enhanced hydrogen production. These results manifest the generality of MXenes as effective co-catalysts for solar hydrogen production.},
doi = {10.1002/cssc.201600165},
journal = {ChemSusChem},
number = 12,
volume = 9,
place = {United States},
year = {2016},
month = {5}
}