Freeland, Brian ORCID: 0000-0003-3705-5745, McCann, Ronán ORCID: 0000-0002-2071-0785, Foley, Greg ORCID: 0000-0002-2284-4218 and Brabazon, Dermot ORCID: 0000-0003-3214-6381 (2020) High-efficiency generation of nanomaterials via laser ablation synthesis in solution with in-situ diagnostics for closed-loop control. In: SPIE LASE, 2020, 2 Mar 2020, San Francisco, USA.
Abstract
Driven by an ever-increasing demand for nanomaterials with specific functionalities, physical synthesis techniques such as Laser Ablation Synthesis in Solution (LASiS) have gained significant interest over in recent years. Commercial wet chemical synthesis methods, while having significantly higher nanomaterial yields than LASiS, typically have considerable negative environmental impact through the use of harmful reagents and solvents. LASiS therefore represents a route towards the sustainable “green” production of nanomaterials however the significant challenge to its commercialization is that of comparably low nanomaterial yields. Significant effort has been made towards increasing the production rates of LASiS, however many of the reported advances have relied on the use of high power (>20 W) or short pulse (<10 ps) laser systems which have high capital costs. Other advances have examined moving from batch production in small volumes towards the use of continuous production through the use of solvent flow systems.
Combining these advances, we have developed a new system for nanomaterial generation via LASiS incorporating a low cost, low power (< 4W) Nd:YAG laser and solvent flow system for high-efficiency nanomaterial generation. This study has shown an increase in productivity from 2.5± 0.5 mg/hr for an 11 mL batch colloid, to continuous production yields of 17± 0.7 mg/hr under flow conditions.
Metadata
Item Type: | Conference or Workshop Item (Paper) |
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Event Type: | Conference |
Refereed: | Yes |
Additional Information: | This publication has emanated from research supported the School of Biotechnology, Dublin City University and by research grants from Science Foundation Ireland (SFI) under Grant Numbers 12/IA/1576 and 16/RC/3872 and is co-funded under the European Regional Development Fund and by I-Form industry partners. The Nanoflex in-situ particle size analyser was provided on trial by Microtrac Ltd. OSL group. |
Uncontrolled Keywords: | Laser Ablation Synthesis in Solution; LASiS; Pulsed Laser Ablation in Liquid; PLAL, Nanoparticles; Dynamic Light Scattering; Laser Ablation |
Subjects: | Engineering > Materials Engineering > Mechanical engineering Physical Sciences > Lasers Physical Sciences > Nanotechnology Physical Sciences > Physics |
DCU Faculties and Centres: | DCU Faculties and Schools > Faculty of Engineering and Computing > School of Mechanical and Manufacturing Engineering DCU Faculties and Schools > Faculty of Science and Health > School of Biotechnology Research Initiatives and Centres > National Centre for Plasma Science and Technology (NCPST) Research Initiatives and Centres > Advanced Processing Technology Research Centre (APTRC) Research Initiatives and Centres > I-Form |
Published in: | Proceedings SPIE Synthesis and Photonics of Nanoscale Materials. 17(112690). SPIE. |
Publisher: | SPIE |
Official URL: | https://doi.org/10.1117/12.2545878 |
Copyright Information: | © 2020 SPIE |
Funders: | Science Foundation Ireland, School of Biotechnology, Dublin City University |
ID Code: | 24284 |
Deposited On: | 19 Mar 2020 10:57 by Ronan Mccann . Last Modified 21 Nov 2023 11:23 |
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