MXene-Based Photocatalysts: Fabrication and Applications

✍ Scribed by Zuzeng Qin, Tongming Su, Hongbing Ji

• Publisher: CRC Press
• Year: 2022
• Tongue: English
• Leaves: 225
• Series: Emerging Materials and Technologies
• Category: Library

✦ Synopsis

MXene, a two-dimensional (2D) transition metal carbide, nitride, and carbonitride, was discovered in 2011. MXene has great potential as a cocatalyst in the field of photocatalytic hydrogen production due to its properties and structure. MXene-Based Photocatalysts: Fabrication and Application introduces readers to the fundamentals, preparation, microstructure characterization, and a variety of applications of MXene-based photocatalysts. The book is a comprehensive reference for MXene materials and provides an overview of current literature in advanced MXene materials and applications.

• Discusses preparation methods of MXenes
• Describes morphology and microstructure
• Offers strategies for fabricating MXene-based photocatalysts
• Details the reaction mechanism of MXene-based photocatalysts
• Covers applications in photocatalytic water splitting, photocatalytic Co2 reduction, photocatalytic degradation, photocatalytic nitrogen fixation, and photocatalytic H2O2 production

This work serves as an invaluable guide for advanced students, industry professionals, professors, and researchers in materials science and engineering studying photocatalysis, energy, and environmental applications.

✦ Table of Contents

Cover
Half Title
Series Page
Title Page
Copyright Page
Contents
Preface
Editors
Contributors
1. Introduction
References
2. Preparation Method for MXene
2.1 Introduction
2.2 Overview of MAX
2.3 Synthesis of MXene
2.3.1 Preparation of MXene by the Top-Down Route
2.3.1.1 Preparation of MXene by Etching MAX Phase with HF
2.3.1.2 Preparation of Mxene by Etching MAX Phase with Mixed Acid and Other Etchants
2.3.1.3 Preparation of Monolayer and Few-Layer MXenes
2.3.2 Preparation of MXene by the Bottom-Up Route
Acknowledgments
References
3. Morphology and Microstructure of MXene
3.1 Introduction
3.2 The Effect of Fluoride Etching on the Morphology and Microstructure of MXenes
3.3 The Effect of Alkali-Assisted Etching on the Morphology and Microstructure of MXenes
3.4 Effects of Electrochemical Etching on the Morphology and Microstructure of MXenes
3.5 Effects of Different MXene Morphologies on Photocatalytic Reaction
3.5.1 Multilayered MXenes
3.5.2 Single Layer MXenes
3.5.3 MXene Quantum Dots
Acknowledgments
References
4. Property of MXene
4.1 Introduction
4.2 The Effect of Functional Groups on the Property of MXene
4.2.1 The Effect of Functional Groups on the Band Structure and Conductivity of MXenes
4.2.2 The Effect of Functional Groups on the Oxidation Stability of MXenes
4.2.3 The Effect of Functional Groups on the Thermal Stability of MXenes
4.3 The Change of Property of MXenes on the Photocatalytic Performance of MXene-Based Photocatalysts
Acknowledgments
References
5. Construction of MXene-Based Photocatalysts
5.1 Introduction
5.2 Preparation of MXene-Based Photocatalysts and Evaluation of Their Photoactivity
5.2.1 Preparation of Pristine MXene
5.2.2 Preparation of Binary MXene-Based Nanocomposites
5.2.3 Preparation of Ternary MXene-Based Nanocomposites
5.2.4 Preparation of Supported-MXene Composites
5.3 Conclusion and Perspectives
Acknowledgments
References
6. Application of MXene-Based Photocatalyst for Photocatalytic Water-Splitting
6.1 Introduction
6.2 MXene-Based Photocatalysts for Photocatalytic Water-Splitting
6.2.1 MXene-Based Photocatalysts Prepared by Incomplete Oxidation of MXenes
6.2.2 Carbon Doped TiO2 Photocatalyst Prepared by Oxidation of MXene
6.2.3 Semiconductor/MXene Composite Photocatalyst
6.3 Mechanism of MXene-Based Photocatalyst for Photocatalytic Water-Splitting
6.3.1 Role of MXene with Different Terminating Groups in Photocatalytic Water-Splitting
6.3.2 Semiconductor/MXene Photocatalytic System with Schottky Junction
6.3.3 MXene Acts as a Bridge for the Separation of Photogenerated Charge Carriers
6.4 Stability of MXene for the Photocataytic Water-Splitting
6.5 Conclusion and Prospects
Acknowledgments
References
7. Application of MXene-Based Photocatalyst for Photocatalytic CO2 Reduction
7.1 Introduction
7.2 Mechanism of Photocatalytic Reduction of CO2
7.3 CO2 Capture by MXene-Based Materials
7.3.1 Single Component MXene
7.3.2 Atomic Defects of MXene
7.4 CO2 Conversion by MXene-Based Materials
7.4.1 MXene as Cocatalyst
7.4.1.1 MXene/Nitride Composite Photocatalysts
7.4.1.2 MXene/Metal Oxide Composite Photocatalysts
7.4.1.3 MXene/Perovskite Composite Photocatalysts
7.4.1.4 MXene/Metal-Organic Framework Composite Photocatalysts
7.4.2 The Effect of Surface Functional Groups of MXene on the Photocatalytic CO2 Reduction
7.4.2.1 Tuning the Adsorption Energy of Reaction Intermediates
7.4.2.2 Tuning the Electronic State of Adjacent Atoms
7.4.3 Atomic Engineering
7.4.3.1 Adjusting the Lattice Structure
7.4.3.2 Introducing Extra Active Center
7.4.4 Theoretical Calculation
7.4.4.1 MXene with Defect
7.4.4.2 MXene with Single Atom
7.5 Conclusion and Perspectives
Acknowledgments
References
8. Application of MXene-Based Photocatalyst for Photocatalytic Degradation
8.1 Introduction
8.2 Binary MXene-Based Photocatalyst
8.3 Multicomponent MXene-Based Photocatalyst
8.4 Modified MXene-Based Photocatalysts
8.5 Conclusion and Perspectives
Acknowledgments
References
9. Application of MXene-Based Photocatalyst in Other Photocatalytic Fields
9.1 Introduction
9.2 Photocatalytic Nitrogen Fixation
9.3 Photocatalytic Production of H2O2
9.4 Photocatalytic Sterilization
9.5 Conclusion and Perspectives
Acknowledgments
References
Index