Merck
  • Home
  • Search Results
  • Enhancing Localized Evaporation through Separated Light Absorbing Centers and Scattering Centers.

Enhancing Localized Evaporation through Separated Light Absorbing Centers and Scattering Centers.

Scientific reports (2015-11-27)
Dengwu Zhao, Haoze Duan, Shengtao Yu, Yao Zhang, Jiaqing He, Xiaojun Quan, Peng Tao, Wen Shang, Jianbo Wu, Chengyi Song, Tao Deng
ABSTRACT

This report investigates the enhancement of localized evaporation via separated light absorbing particles (plasmonic absorbers) and scattering particles (polystyrene nanoparticles). Evaporation has been considered as one of the most important phase-change processes in modern industries. To improve the efficiency of evaporation, one of the most feasible methods is to localize heat at the top water layer rather than heating the bulk water. In this work, the mixture of purely light absorptive plasmonic nanostructures such as gold nanoparticles and purely scattering particles (polystyrene nanoparticles) are employed to confine the incident light at the top of the solution and convert light to heat. Different concentrations of both the light absorbing centers and the light scattering centers were evaluated and the evaporation performance can be largely enhanced with the balance between absorbing centers and scattering centers. The findings in this study not only provide a new way to improve evaporation efficiency in plasmonic particle-based solution, but also shed lights on the design of new solar-driven localized evaporation systems.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Sodium citrate tribasic dihydrate, puriss. p.a., ACS reagent, ≥99.0% (NT)
Sigma-Aldrich
Nitric acid, 70%, purified by redistillation, ≥99.999% trace metals basis
Sigma-Aldrich
Sodium citrate dihydrate, ≥99%, FG
Sigma-Aldrich
Sodium citrate tribasic dihydrate, BioUltra, for molecular biology
Sigma-Aldrich
Sodium citrate tribasic dihydrate, ACS reagent, ≥99.0%
Sigma-Aldrich
Sodium citrate tribasic dihydrate, for molecular biology, ≥99%
Sigma-Aldrich
Sodium citrate tribasic dihydrate, ≥98%
Sigma-Aldrich
Sodium citrate tribasic dihydrate, BioXtra, ≥99.0% (titration)
Sigma-Aldrich
Nitric acid, ACS reagent, ≥90.0%
Sigma-Aldrich
Nitric acid, puriss. p.a., 65.0-67.0%
Sigma-Aldrich
Nitric acid, red, fuming, HNO3 >90 %
Sigma-Aldrich
Nitric acid, ACS reagent, 70%
Sigma-Aldrich
Citrate Concentrated Solution, BioUltra, for molecular biology, 1 M in H2O
Sigma-Aldrich
Citrate Concentrated Solution, BioReagent, suitable for coagulation assays, 4 % (w/v)
Sigma-Aldrich
Trisodium citrate dihydrate, meets USP testing specifications
Sigma-Aldrich
Nitric-14N acid solution, ~10 N in H2O, 99.99 atom % 14N