writer：HengyuPan,LingmeiZhu,HuijieWei,ChangGao,MaolinZhou,TianceZhang, QiangLuo,BoyangTian,JianhuaWang,Yong
keywords：Water harvesting
source：期刊
specific source：Adv.Mater. Interfaces2025,12,e00421
Issue time：2025年

Abioinspiredspidersilkfiber(i.e.,PCLC)ispresentedbyintroducingthe

zwitterionichydrogelpoly-[2-(methacryloyloxy)ethyl]dimethyl-(3

sulfopropyl)ammoniumhydroxide(PDMAPS)andCAU-10-Husedascarriers

ofhygroscopicsaltLithiumchloride(LiCl),andtheadditionofcarbonblack

(CB)nanoparticlesmakesthepreparedfibershavephotothermaleffect.PCLC

fiberachievesthemoistureabsorptioncapacityof≈1.49–1.99gg?1after2h

adsorptionat≈40%relativehumidity(RH).ThetemperatureofasinglePCLC

knotcanriseto46.4°Cfor≈3600s,andthetemperatureofabatchofPCLC

spiderknotfiberscanriseto112.1°Cfor≈3600s(under≈1sunillumination),

whichhasexcellentphotothermaleffect.Watercollectionisconductedfor

fiveconsecutivedayswithadailycollectedamountof≈1.87gg?1.ThePCLC

fibershowsgoodwatervaporadsorptionreversibilityafter10consecutive

adsorption-desorptioncycles,themoistureabsorptioncanbestabilizedat

≈1.9gg?1,andthewatervapordesorptioncapacityreaches≈1.73gg?1

(under≈1sunillumination,exhibitingwatervapordesorptionefficiency

of≈92.1%).

https://doi.org/10.1002/admi.202500421