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An efficient light-to-heat conversion coupling photothermal effect and exothermic chemical reaction in Au NRs/V_(2)C MXene membranes for high-performance laser ignition

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Defence Technology（防务技术） 2022年第5期18卷 834-842页

作者： Bo Yang Peng-fei Tang Chun-jiao Liu Rui Li Xiao-dong Li Jin Chen Zhi-qiang Qiao Hong-ping Zhang Guang-cheng Yang School of Materials Science and Engineering Southwest University of Science and TechnologyMianyangSichuan621010China Institute of Chemical Materials China Academy of Engineering PhysicsMianyangSichuan621900China School of Chemical Engineering Nanjing University of Science and TechnologyNanjing210094PR China

MXene,a new type of two-dimensional materials,have been demonstrated as one of the best photothermal materials owing to their strong light-matter interaction and high photothermal conversion efficiency in recent ***,we report the intriguing light-to-heat conversion property of vanadium carbide(V_(2)C)MXene under irradiation of millisecond laser *** the typical photothermal materials,the V_(2)C MXene not only converts the incident laser energy to heat by the physical photothermal effect,but also triggers the exothermic oxidation of the V_(2)C *** oxidation could be greatly promoted with addition of plasmonic Au nanorods(Au NRs)for light absorption *** to the unique light-to-heat conversion property,the Au NRs/V_(2)C MXene membrane could serve as high temperature pulse(HTP)generators that is proposed for numerous applications with high demand for *** a proof-of concept application,Au NRs/V_(2)C MXene membrane was applied for laser ignition of the high energy density materials,such as 2,4,6,8,10,12-(hexanitrohexaaza)cyclododecane(HNIW or CL-20).An improved ignition performance,in terms of lowered laser threshold,is achieved as compared to the state-of-the-art light-to-heat conversion materials.

关键词： V_(2)C MXene light-to-heat conversion Exothermic chemical reaction Plasmonic Au nanorods High temperature pulse Laser ignition

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From plasma to plasmonics:toward sustainable and clean water production through membranes

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Frontiers of Chemical Science and Engineering 2023年第12期17卷 1809-1836页

作者： Farah Abuhatab Omar Khalifa Husam Al Araj Shadi W.Hasan Center for Membranes and Advanced Water Technology(CMAT) Khalifa University of Science and Technology127788 Abu DhabiUnited Arab Emirates Department of Chemical Engineering Khalifa University of Science and Technology127788 Abu DhabiUnited Arab Emirates Department of Chemical and Environmental Engineering Yale UniversityNew HavenCT 06520USA

The increasing demand for potable water is *** resources are scarce and stress is accumulating on other ***,new technologies and novel optimization methods are developed for the existing ***-based processes are among the most efficient methods for water ***,membranes suffer from severe operational problems,namely fouling and temperature *** effects can harm the membrane’s permeability,permeate recovery,and *** mitigate such effects,membranes can be treated through two techniques:plasma treatment(a surface modification technique),and treatment through the use of plasmonic materials(surface and bulk modification).This article showcases plasma-and plasmonic-based treatments in the context of water desalination/*** aims to offer a comprehensive review of the current developments in membrane-based water treatment technologies along with suggested directions to enhance its overall efficiency through careful selection of material and system ***,basic guidelines and strategies are outlined on the different membrane modification techniques to evaluate its ***,we discuss the challenges and future developments about these membrane modification methods.

关键词： water treatment membrane-based process plasma treatment plasma polymerization plasmonic light-to-heat conversion

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