Intensifying solar-thermal harvest of low-dimension biologic nanostructures for electric power and solar desalination. Zong, L., Li, M., & Li, C. (2018). Nano energy, 50, 308-315.-成果-仿生智能材料研究组  
Intensifying solar-thermal harvest of low-dimension biologic nanostructures for electric power and solar desalination. Zong, L., Li, M., & Li, C. (2018). Nano energy, 50, 308-315. 2018 生物质基 柔性智能材料 绿色环保材料 论文
lvll 5月前 148

High-efficiency solar harvest and solar-thermal conversion have been targeted in modern sustainable energy science for diverse potential applications. However, broad applications with inorganic nanomaterials as solarnanoheaters have suffered from low conversion efficiency, potential noxiousness and complicated synthesis procedures. Meanwhile, living organisms rely on delicate bio-synthesis of bio-macromolecules to produce organic bio-melanins with optimal nanostructures and solar-thermal properties for survival from harsh environments. Followed by this inspiration, alginate, one marine polysaccharide, is used to alter the polydopamine nanostructures, one artificial bio-melanin, from nanoparticles to high-aspect-ratio nanofibrils (diameter ~ 40 nm and aspect ratio up to 120 nm). During polymerization, alginate not only increases structural order (e.g. π-π conjugation) of polydopamine oligomers within their protoparticles, but also leads to linear consolidation of protoparticles. Polydopamine nanofibrils are found to exhibit super absorbance and high solar-thermal conversion efficiency (~ 86%) in full-range solar spectrum, being superior to conventional polydopamine nanoparticles and comparable to graphene and carbon nanotubes. Thus these biological nanofibrils may offer a promising platform for high-efficiency solar-energy harvest applicable in solar evaporative desalination, solar electric power etc.

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