Cellulose frameworks have emerged as promising materials for light management due to their exceptional light-scattering capabilities and sustainable nature.Conventional biomass-derived cellulose frameworks face a fund...Cellulose frameworks have emerged as promising materials for light management due to their exceptional light-scattering capabilities and sustainable nature.Conventional biomass-derived cellulose frameworks face a fundamental trade-off between haze and transparency,coupled with impractical thicknesses(≥1 mm).Inspired by squid’s skin-peeling mechanism,this work develops a peroxyformic acid(HCOOOH)-enabled precision peeling strategy to isolate intact 10-μm-thick bamboo green(BG)frameworks—100×thinner than wood-based counterparts while achieving an unprecedented optical performance(88%haze with 80%transparency).This performance surpasses delignified biomass(transparency<40%at 1 mm)and matches engineered cellulose composites,yet requires no energy-intensive nanofibrillation.The preserved native cellulose I crystalline structure(64.76%crystallinity)and wax-coated uniaxial fibril alignment(Hermans factor:0.23)contribute to high mechanical strength(903 MPa modulus)and broadband light scattering.As a light-management layer in polycrystalline silicon solar cells,the BG framework boosts photoelectric conversion efficiency by 0.41%absolute(18.74%→19.15%),outperforming synthetic anti-reflective coatings.The work establishes a scalable,waste-to-wealth route for optical-grade cellulose materials in next-generation optoelectronics.展开更多
The increasing scarcity of freshwater resources has driven the rapid emergence of solar-driven interfacial evaporators(SDIEs)as a sustainable approach to harvest fresh water by utilizing solar energy.Lignocellulosic b...The increasing scarcity of freshwater resources has driven the rapid emergence of solar-driven interfacial evaporators(SDIEs)as a sustainable approach to harvest fresh water by utilizing solar energy.Lignocellulosic biomass,featuring natural abundance,excellent renewability,unique natural structures,and superior biodegradability compared to the synthetic polymers,is highly attractive for constructing solar steam generators.This review aims to offer an innovative and in-depth insight into designing and optimizing highperformance integrated solar interfacial evaporators derived from renewable lignocellulosic biomass.First,the structural characteristics of lignocellulosic biomass are briefly introduced,serving as photothermal layer or supporting substrates in SDIEs.Secondly,the fabrication methods and processing technologies of lignocellulosic biomass-based evaporators are summarized from the perspective of photothermal layer and supporting substrates.Next,the most recent advances of regulation and optimization strategies are proposed to improve evaporation efficiency.Subsequently,this review summarizes the diverse functionalities of SDIEs,including desalination,power generation,wastewater treatment and antimicrobial,atmospheric water harvesting,and photocatalytic hydrogen production.Finally,the challenges in this field and outlook on the future development are discussed,which are anticipated to provide new opportunities for the advancement of lignocellulosic biomass-based SDIEs.展开更多
基金supported by National Natural Science Foundation of China(32494793).
文摘Cellulose frameworks have emerged as promising materials for light management due to their exceptional light-scattering capabilities and sustainable nature.Conventional biomass-derived cellulose frameworks face a fundamental trade-off between haze and transparency,coupled with impractical thicknesses(≥1 mm).Inspired by squid’s skin-peeling mechanism,this work develops a peroxyformic acid(HCOOOH)-enabled precision peeling strategy to isolate intact 10-μm-thick bamboo green(BG)frameworks—100×thinner than wood-based counterparts while achieving an unprecedented optical performance(88%haze with 80%transparency).This performance surpasses delignified biomass(transparency<40%at 1 mm)and matches engineered cellulose composites,yet requires no energy-intensive nanofibrillation.The preserved native cellulose I crystalline structure(64.76%crystallinity)and wax-coated uniaxial fibril alignment(Hermans factor:0.23)contribute to high mechanical strength(903 MPa modulus)and broadband light scattering.As a light-management layer in polycrystalline silicon solar cells,the BG framework boosts photoelectric conversion efficiency by 0.41%absolute(18.74%→19.15%),outperforming synthetic anti-reflective coatings.The work establishes a scalable,waste-to-wealth route for optical-grade cellulose materials in next-generation optoelectronics.
基金supported by grants from National Natural Science Foundation of China(224708046,22508229,22278049)Young Elite Scientists Sponsorship Program by CAST(2022QNRC001)+1 种基金Xingliao Talent Program-Young Top Talent(XLYC2403126)Liaoning Provincial Basic Scientific Research Project for Higher Education(LJ212510152013)。
文摘The increasing scarcity of freshwater resources has driven the rapid emergence of solar-driven interfacial evaporators(SDIEs)as a sustainable approach to harvest fresh water by utilizing solar energy.Lignocellulosic biomass,featuring natural abundance,excellent renewability,unique natural structures,and superior biodegradability compared to the synthetic polymers,is highly attractive for constructing solar steam generators.This review aims to offer an innovative and in-depth insight into designing and optimizing highperformance integrated solar interfacial evaporators derived from renewable lignocellulosic biomass.First,the structural characteristics of lignocellulosic biomass are briefly introduced,serving as photothermal layer or supporting substrates in SDIEs.Secondly,the fabrication methods and processing technologies of lignocellulosic biomass-based evaporators are summarized from the perspective of photothermal layer and supporting substrates.Next,the most recent advances of regulation and optimization strategies are proposed to improve evaporation efficiency.Subsequently,this review summarizes the diverse functionalities of SDIEs,including desalination,power generation,wastewater treatment and antimicrobial,atmospheric water harvesting,and photocatalytic hydrogen production.Finally,the challenges in this field and outlook on the future development are discussed,which are anticipated to provide new opportunities for the advancement of lignocellulosic biomass-based SDIEs.
