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

Journal Article · · ChemSusChem
 [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)

Abstract MXenes, a family of two‐dimensional transition‐metal carbides, were successfully demonstrated as co‐catalysts with rutile TiO 2 for visible‐light‐induced solar hydrogen production from water splitting. The physicochemical properties of Ti 3 C 2 T x MXene coupled with TiO 2 were investigated by a variety of characterization techniques. The effect of the Ti 3 C 2 T x loading on the photocatalytic performance of the TiO 2 /Ti 3 C 2 T x composites was elucidated. With an optimized Ti 3 C 2 T x content of 5 wt %, the TiO 2 /Ti 3 C 2 T 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 2 CT x and Ti 2 CT 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.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1257896
Alternate ID(s):
OSTI ID: 1401437
Journal Information:
ChemSusChem, Vol. 9, Issue 12; ISSN 1864-5631
Publisher:
ChemPubSoc EuropeCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 195 works
Citation information provided by
Web of Science

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Cited By (21)

Hollow MXene Spheres and 3D Macroporous MXene Frameworks for Na-Ion Storage journal July 2017
Clay-Inspired MXene-Based Electrochemical Devices and Photo-Electrocatalyst: State-of-the-Art Progresses and Challenges journal January 2018
MXene‐Based Composites: Synthesis and Applications in Rechargeable Batteries and Supercapacitors journal February 2019
One-Step Synthesis of Nb 2 O 5 /C/Nb 2 C (MXene) Composites and Their Use as Photocatalysts for Hydrogen Evolution journal January 2018
Heterostructured d‐Ti 3 C 2 /TiO 2/ g‐C 3 N 4 Nanocomposites with Enhanced Visible‐Light Photocatalytic Hydrogen Production Activity journal November 2018
2D Early Transition Metal Carbides (MXenes) for Catalysis journal January 2019
Solar‐Inspired Water Purification Based on Emerging 2D Materials: Status and Challenges journal January 2020
Layered BiOBr/Ti3C2 MXene composite with improved visible-light photocatalytic activity journal October 2018
2D MXenes as Co-catalysts in Photocatalysis: Synthetic Methods journal September 2019
Enhanced Thermal Conductivity of Epoxy Composites Filled with 2D Transition Metal Carbides (MXenes) with Ultralow Loading journal June 2019
Recent advances in ternary two-dimensional materials: synthesis, properties and applications journal January 2017
Fe 3 C nanoparticles encapsulated in highly crystalline porous graphite: salt-template synthesis and enhanced electrocatalytic oxygen evolution activity and stability journal January 2018
The synergetic effects of Ti 3 C 2 MXene and Pt as co-catalysts for highly efficient photocatalytic hydrogen evolution over g-C 3 N 4 journal January 2018
Eosin Y-sensitized partially oxidized Ti 3 C 2 MXene for photocatalytic hydrogen evolution journal January 2019
g-C 3 N 4 /Ti 3 C 2 T x (MXenes) composite with oxidized surface groups for efficient photocatalytic hydrogen evolution journal January 2018
MXene as a non-metal charge mediator in 2D layered CdS@Ti 3 C 2 @TiO 2 composites with superior Z-scheme visible light-driven photocatalytic activity journal January 2019
Theory-guided materials design: two-dimensional MXenes in electro- and photocatalysis journal January 2019
2D/2D heterojunction of Ti 3 C 2 /g-C 3 N 4 nanosheets for enhanced photocatalytic hydrogen evolution journal January 2019
p–n tungsten oxide homojunctions for Vis-NIR light-enhanced electrocatalytic hydrogen evolution journal January 2019
A new single-layer structure of MBene family: Ti 2 B journal September 2019
Non-isothermal crystallization and thermal degradation kinetics of MXene/linear low-density polyethylene nanocomposites journal August 2017

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