Plasmonic group 4 transition metal carbide interfaces for solar-driven desalination  

作　　者：Matthew J.Margeson Mark Atwood Yashar Esfahani Monfared Mita Dasog 

机构地区：[1]Department of Chemistry,Dalhousie University,Halifax,Canada

出　　处：《Aggregate》2024年第4期147-154,共8页聚集体（英文）

基　　金：Canada Foundation for Innovation;Ocean Frontier Institute;Natural Sciences and Engineering Research Council of Canada。

摘　　要：To combat the dwindling supply of freshwater,solar-driven desalination using plas-monic nanomaterials has emerged as a promising and renewable solution.Refractory plasmonic carbide nanomaterials are exciting candidates that are inexpensive and chemically robust but have not been widely explored.Herein,plasmonic car-bide interfaces made of TiC,ZrC,and HfC nanoparticle aggregates loaded onto to a mixed cellulose ester(MCE)membrane were explored to gain insight into their solar-vapor generation and desalination potential.Desalination using Atlantic Ocean water under 1 sun intensity yielded rates of 1.26±0.01,1.18±0.02,and 1.40±0.01 kg m^(-2) h^(-1),with efficiencies of 86%,80%,and 96%for TiC,ZrC,and HfC,respectively.Carbide interfaces showed good stability and effectively removed heavy metal ions and salt from solutions with concentrations up to 35%.PVA hydro-gel based TMC evaporators afforded rates of 3.31±0.03 and 3.22±0.03 kg m^(-2)h^(-1) for TiC and ZrC,respectively.The HfC-PVA interface afforded a high solar desalination rate of 3.69±0.04 kg m^(-2) h^(-1),corresponding to an efficiency of 97%under 1-sun illumination.The hydrogel evaporators also retained their strong salt rejection action over time.

关 键 词：carbides DESALINATION PHOTOTHERMAL PLASMONICS water evaporation 

分 类 号：O53[理学—等离子体物理]