采用表面活性剂发泡法制备三维多孔泡沫碳光吸收体,通过改变碳化温度调节泡沫碳有机质/C相对含量比,研究其与光吸收、导热率的关系,找到最优平衡点,综合优化太阳光水蒸发性能。结果表明,泡沫碳的碳化温度对泡沫碳中有机质/C相对含量比...采用表面活性剂发泡法制备三维多孔泡沫碳光吸收体,通过改变碳化温度调节泡沫碳有机质/C相对含量比,研究其与光吸收、导热率的关系,找到最优平衡点,综合优化太阳光水蒸发性能。结果表明,泡沫碳的碳化温度对泡沫碳中有机质/C相对含量比和孔结构有直接影响,有机质/C相对含量的降低可有效提高样品光吸收率,但也会引起隔热性能降低,使水蒸发体系热管理能力变差;碳化温度为600℃时,泡沫碳光吸收-热管理达到最优平衡点,获得最高的光吸收率(96.5%)和最优的太阳光水蒸发性能(1.0391 kg m^(-2)h^(-1)),其水蒸发率是纯水的2.08倍。展开更多
Superhydrophobic surfaces have demonstrated exceptional efficacy in combatting biofouling contaminations of optical devices and equipment in marine applications. However, the fabrication of highly transparent superhyd...Superhydrophobic surfaces have demonstrated exceptional efficacy in combatting biofouling contaminations of optical devices and equipment in marine applications. However, the fabrication of highly transparent superhydrophobic materials remains a formidable challenge due to the inherent trade-off between surface roughness for superhydrophobicity and optical transparency.Herein, we design a robust and transparent superhydrophobic coating(Si-POSS) embedded silica nanoparticles(200 nm) with fluorinated polyhedral oligomeric silsesquioxanes(F-POSS) and zinc pyrithione(ZPT). The Si-POSS coating exhibits excellent water repellence toward diverse liquids and optical transmittance exceeding 90% in the visible spectrum. Moreover, the Si-POSS coating sustains long-term anti-bacterial(> 99.11%) and anti-algal effects for over 30 days, accompanied by mechanical,chemical, and thermal stability. This research asserts that the Si-POSS coating with outstanding combined characteristics holds significant potential for marine applications, particularly in self-cleaning and antifouling endeavors.展开更多
文摘采用表面活性剂发泡法制备三维多孔泡沫碳光吸收体,通过改变碳化温度调节泡沫碳有机质/C相对含量比,研究其与光吸收、导热率的关系,找到最优平衡点,综合优化太阳光水蒸发性能。结果表明,泡沫碳的碳化温度对泡沫碳中有机质/C相对含量比和孔结构有直接影响,有机质/C相对含量的降低可有效提高样品光吸收率,但也会引起隔热性能降低,使水蒸发体系热管理能力变差;碳化温度为600℃时,泡沫碳光吸收-热管理达到最优平衡点,获得最高的光吸收率(96.5%)和最优的太阳光水蒸发性能(1.0391 kg m^(-2)h^(-1)),其水蒸发率是纯水的2.08倍。
基金supported by the National Natural Science Foundation of China (Grant Nos. 52005491, 52305211)the Zhejiang Provincial Natural Science Foundation of China (Grant No. LQ21E050021)+3 种基金the “Pioneer” and “Leading Goose” R&D Program of Zhejiang (Grant No. 2023C01089)the Natural Science Foundation of Hubei Province (Grant No. 2022CFB626)the Public Welfare Science and Technology Projects of Ningbo (Grant No. 2023S080)the Knowledge Innovation Project of Wuhan (Grant No. 2022010801010306)。
文摘Superhydrophobic surfaces have demonstrated exceptional efficacy in combatting biofouling contaminations of optical devices and equipment in marine applications. However, the fabrication of highly transparent superhydrophobic materials remains a formidable challenge due to the inherent trade-off between surface roughness for superhydrophobicity and optical transparency.Herein, we design a robust and transparent superhydrophobic coating(Si-POSS) embedded silica nanoparticles(200 nm) with fluorinated polyhedral oligomeric silsesquioxanes(F-POSS) and zinc pyrithione(ZPT). The Si-POSS coating exhibits excellent water repellence toward diverse liquids and optical transmittance exceeding 90% in the visible spectrum. Moreover, the Si-POSS coating sustains long-term anti-bacterial(> 99.11%) and anti-algal effects for over 30 days, accompanied by mechanical,chemical, and thermal stability. This research asserts that the Si-POSS coating with outstanding combined characteristics holds significant potential for marine applications, particularly in self-cleaning and antifouling endeavors.
