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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)

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.

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
Journal Information:
ChemSusChem, Journal Name: ChemSusChem Journal Issue: 12 Vol. 9; ISSN 1864-5631
Publisher:
ChemPubSoc EuropeCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (25)

Enhanced Thermal Conductivity of Epoxy Composites Filled with 2D Transition Metal Carbides (MXenes) with Ultralow Loading journal June 2019
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 progress in layered transition metal carbides and/or nitrides (MXenes) and their composites: synthesis and applications journal January 2017
Synergistic effect of 2D Ti 2 C and g-C 3 N 4 for efficient photocatalytic hydrogen production journal January 2017
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
Engineering graphene and TMDs based van der Waals heterostructures for photovoltaic and photoelectrochemical solar energy conversion 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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