Thermal Evaporation around Optically-Excited Functionalized Nanoparticles

光激发功能化纳米颗粒周围的热蒸发

• 批准号: 1706039
• 负责人: Tengfei Luo
• 金额: $ 35万
• 依托单位: University of Notre Dame
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-09-01 至 2021-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1706039&HistoricalAwards=false
• 关键词: Thermal; Evaporation; around; Optically; Excited

Optical absorber-assisted thermal evaporation can enable a variety of innovative renewable energy applications, ranging from water purification to chemical fractionation. Many of these applications can catalyze new industries and hence drive global economic growth. For example, the ability to use solar energy for fresh water production will tackle many challenges in the water-energy nexus. The present project is motivated by a recently observed liquid evaporation using highly localized heating effect from functionalized light absorbing nanoparticles. In such a demonstration, water vapor was generated while the bulk temperature remained at about 30 degrees C. The underlying physics is not yet understood, and the mechanism is related to the convoluted multi-phase (liquid-vapor-solid) thermal and mass transport, which needs this multi-disciplinary study to unlock. The fundamental thermal transport science to be gained from this project is expected to guide the development of new technologies to utilize solar energy, resulting in significant broader impacts on applications. This project will enable the education and training of graduate students and undergraduate students from under-represented groups in the universities.This project is driven by the hypothesis that enhanced interfacial thermal transport and the self-assembled monolayer defect-assisted nucleation combine to enhance bubble generation and improve the overall evaporation effect. To test this hypothesis, the objectives of this proposal are to (1) understand the fundamental relationship between the surface functionalization, thermal transport and the subsequently mass transport in bubble dynamics through a combination of molecular simulations and mesoscale hydrodynamics modeling; and (2) validate such a relationship through experiments on vapor generation around photo-excited functionalized nanoparticles. This project will employ a combination of molecular simulation, mesoscale modeling and experimental validation to achieve a multi-scale understanding of this fundamental problem with unprecedented resolution.

光学吸收辅助热蒸发可以实现各种创新的可再生能源应用，从水纯化到化学分级。这些应用中的许多可以催化新的行业，从而推动全球经济增长。例如，将太阳能用于淡水生产的能力将应对水能Nexus中的许多挑战。本项目是由最近观察到的液体蒸发的动机，该液体蒸发使用了吸收纳米颗粒的高度局部加热效果。在这样的示范中，产生了水蒸气，而散装温度则保持在约30度C。尚不清楚基础物理学，并且该机制与综合的多相（液体蒸气 - 固体）热和质量传输有关，这需要这项多学科研究才能解锁这项多学科研究。预计将从该项目中获得的基本热运输科学指导新技术的开发来利用太阳能，从而对应用产生更广泛的影响。该项目将使大学中代表性不足的群体的研究生和本科生的教育和培训能够受到该项目的驱动，即增强了界面的热量运输以及自组装的单层缺陷型成核的组合，以增强气泡的产生并提高整体蒸发效应。为了检验这一假设，该提案的目标是（1）通过分子模拟和中尺度的流体动力学建模的组合，了解表面功能化，热传输与随后在气泡动力学中的质量转运之间的基本关系； （2）通过对光启用功能化纳米颗粒的蒸气产生进行实验来验证这种关系。该项目将结合分子模拟，中尺度建模和实验验证，以通过前所未有的分辨率对这个基本问题进行多尺度的了解。

项目成果

Spill-SOS: Self-Pumping Siphon-Capillary Oil Recovery

Spill-SOS：自泵虹吸毛细管采油

• DOI: 10.1021/acsnano.9b05703
• 发表时间: 2019
• 期刊: ACS Nano
• 影响因子: 17.1
• 作者: Shenghao Wu;Huachao Yang;Guoping Xiong;Yikuan Tian;Biyao Gong;Tengfei Luo;Timothy S. Fisher;Jianhua Yan;Kefa Cen;Zheng Bo;Kostya Ken Ostrikov
• 通讯作者: Kostya Ken Ostrikov

Black body-like radiative cooling for flexible thin-film solar cells

• DOI: 10.1016/j.solmat.2019.02.015
• 发表时间: 2019-06-01
• 期刊: SOLAR ENERGY MATERIALS AND SOLAR CELLS
• 影响因子: 6.9
• 作者: Lee, Eungkyu;Luo, Tengfei
• 通讯作者: Luo, Tengfei

Controlling the Rotational Barrier of Single Porphyrin Rotors on Surfaces

控制单卟啉转子表面的旋转势垒

• DOI: 10.1021/acs.jpcb.9b09986
• 发表时间: 2020
• 期刊: Journal of Physical Chemistry B
• 影响因子: 3.3
• 作者: Zhang Qiushi;Pang Rui;Luo Tengfei;Van Hove Michel A.
• 通讯作者: Van Hove Michel A.

Ballistic supercavitating nanoparticles driven by single Gaussian beam optical pushing and pulling forces

• DOI: 10.1038/s41467-020-16267-9
• 发表时间: 2020-05-15
• 期刊: NATURE COMMUNICATIONS
• 影响因子: 16.6
• 作者: Lee, Eungkyu;Huang, Dezhao;Luo, Tengfei
• 通讯作者: Luo, Tengfei

Plasma-Made Graphene Nanostructures with Molecularly Dispersed F and Na Sites for Solar Desalination of Oil-Contaminated Seawater with Complete In-Water and In-Air Oil Rejection

• DOI: 10.1021/acsami.0c07921
• 发表时间: 2020-08-26
• 期刊: ACS APPLIED MATERIALS & INTERFACES
• 影响因子: 9.5
• 作者: Wu, Shenghao;Gong, Biyao;Fisher, Timothy S.
• 通讯作者: Fisher, Timothy S.