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Efficient surface functionalization of detonation nanodiamond using ozone under ambient conditions
Johannes Ackermann1, Anke Krueger
1Institute for Organic Chemistry, Julius-Maximilians University Würzburg, Am Hubland, D-97074 Würzburg, Germany. anke.krueger@uni-wuerzburg.de.
Nanoscale
|April 5, 2019
Summary
This study introduces a novel method for functionalizing nanodiamond particles using ozone treatment. This technique efficiently creates stable ozonides, allowing for versatile surface modifications of diamond nanoparticles.
Area of Science:
- Materials Science
- Nanotechnology
- Chemistry
Background:
- Oxidative treatments are crucial for modifying carbon nanomaterials.
- Existing methods for nanodiamond functionalization can be inefficient or lack control.
Purpose of the Study:
- To develop a novel, efficient, and homogeneous method for functionalizing nanodiamond particles.
- To explore the use of ozone at low temperatures for surface modification.
Main Methods:
- Treatment of detonation diamond particles with ozone in a colloidal dispersion at low temperatures.
- Formation of stable ozonides on the nanodiamond surface.
- Subsequent oxidative or reductive workup steps to transform ozonides into various surface groups.
Main Results:
- Achieved homogeneous functionalization of nanodiamond surfaces.
- Demonstrated the stability of ozonides under the reaction conditions.
- Showcased the versatility of the method for creating diverse oxygen-terminated surface groups.
Conclusions:
- Ozonolysis of nanodiamond offers a waste-free and controllable route for surface functionalization.
- This method provides precise control over the composition of surface moieties on diamond nanoparticles.
- The developed technique represents a significant advancement in preparing tailored nanodiamond materials.
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