Furniture is identified as a vital volatile organic compound(VOC)emission source in the indoor environment.Leather has become the most common raw and auxiliary fabric material for upholstered furniture,particularly wi...Furniture is identified as a vital volatile organic compound(VOC)emission source in the indoor environment.Leather has become the most common raw and auxiliary fabric material for upholstered furniture,particularly with extensive consumption in sofas,due to its abundant resources and efficient functions.Despite being widely traded across the world,little research has been conducted on the VOCs released by leathermaterials and their health risk assessment in the indoor environment.Accordingly,this study investigated the VOC emissions of leather with different grades and the health risk of the inhalation exposure.Based on the ultra-fast gas phase electronic nose(EN)and GC-FID/Qtof,the substantial emissions of aliphatic aldehyde ketones(Aks),particularly hexanal,appear to be the cause of off-flavor in medium and low grade(MG and LG)sofa leathers.The health risk assessment indicated that leather materials barely pose non-carcinogenic and carcinogenic effects to residents.Given the abundance of VOC sources and the accumulation of health risks in the indoor environment,more stringent specifications concerning qualitative and quantitative content should be extended to provide VOC treatment basic for the manufacturing industry and obtain better indoor air quality.展开更多
Flexible zinc-ion batteries(FZIBs)have been acknowledged as a potential cornerstone for the future development of flexible energy storage,yet conventional FZIBs still encounter challenges,particularly concerning perfo...Flexible zinc-ion batteries(FZIBs)have been acknowledged as a potential cornerstone for the future development of flexible energy storage,yet conventional FZIBs still encounter challenges,particularly concerning performance failure at low temperatures.To address these challenges,a novel anti-freezing leather gel electrolyte(AFLGE-30)is designed,incorporating ethanol as a hydrogen bonding acceptor.The AFLGE-30 demonstrates exceptional frost resistance while maintaining favorable flexibility even at-30℃;accordingly,the battery can achieve a high specific capacity of about 70 m Ah/g.Cu//Zn battery exhibits remarkable stability at room temperature,retaining~96%efficiency after 120 plating/stripping cycles at1 m A/cm^(2).Concurrently,the Zn//Zn symmetric batteries demonstrate a lifespan of 4100 h at room temperature,which is attributed to the enhancement of Zn^(2+)deposition kinetics,restraining the formation of zinc dendrites.Furthermore,FZIBs exhibit minimal capacity loss even after bending,impacting,or burning.This work provides a promising strategy for designing low-temperature-resistant FZIBs.展开更多
The use of carbon from waste biomass has the potential to eliminate the drawbacks of Li-S batteries and improve their overall performance.Chrome-tanned-leather-shavings(CTLS)are a readily available waste product that ...The use of carbon from waste biomass has the potential to eliminate the drawbacks of Li-S batteries and improve their overall performance.Chrome-tanned-leather-shavings(CTLS)are a readily available waste product that can be transformed into porous carbon.We prepared an ac-tivated carbon by microwave pyrolysis combined with KOH activator using the CTLS as starting materials.The carbon had a specific surface area of 556 m^(2)g^(-1) and a honeycomb-like structure.Two kinds of N-doped activated carbons were then synthesized by thermal decomposition of the activated carbon,either combined with urea,or impregnated with eth-anolamine.Both N-doped activated carbons have an in-creased number of nitrogen and amine surface groups.However,only the urea treatment was effective in improv-ing the initial capacity of the cell(1363 mAh g^(-1)),which is probably linked to the sorption of long-chain polysulfides.This investigation confirms that it is possible to use the thermal de-composition of urea to obtain carbon materials from CTLS for use as the sulfur-host cathode in Li-S batteries and improve their performance.A radial basis function neural network was fitted to provide statistical support for the experimental results,which confirmed the importance of the nitrogen content of the carbons in determining the discharge capacity of the cells.展开更多
This study explores vegan leather,an eco-friendly substitute for conventional animal-derived leather.Using materials like polyurethane,pineapple leaves,cork,and recycled plastics,vegan leather aims to transform the fa...This study explores vegan leather,an eco-friendly substitute for conventional animal-derived leather.Using materials like polyurethane,pineapple leaves,cork,and recycled plastics,vegan leather aims to transform the fashion industry and consumer products while addressing environmental concerns.Despite its advantages,challenges related to availability and durability persist.Theboomingmarket for vegan leather is expected to reach billions of dollars,reflecting a broader societal shift towards sustainable and cruelty-free alternatives.The review traces the historical development of vegan leather fromits origins in Germany to modern innovations likeMylo and Pinatex.By comparing these materials to conventional leather,the study assesses their potential to replace animal-derived leather.Looking at different types of sustainable leather,like synthetic,plant-based,mycelium,and collagen-based leather,shows how they connect with being environmentally friendly and made from natural materials.The ultimate aim is to contribute to ongoing discussions about transitioning to a circular economy,where durable bio-based and biodegradable materials offer a promising future for sustainable leather alternatives.展开更多
基金supported by the National Key Research and Development Program of China (No.2019YFC1904501).
文摘Furniture is identified as a vital volatile organic compound(VOC)emission source in the indoor environment.Leather has become the most common raw and auxiliary fabric material for upholstered furniture,particularly with extensive consumption in sofas,due to its abundant resources and efficient functions.Despite being widely traded across the world,little research has been conducted on the VOCs released by leathermaterials and their health risk assessment in the indoor environment.Accordingly,this study investigated the VOC emissions of leather with different grades and the health risk of the inhalation exposure.Based on the ultra-fast gas phase electronic nose(EN)and GC-FID/Qtof,the substantial emissions of aliphatic aldehyde ketones(Aks),particularly hexanal,appear to be the cause of off-flavor in medium and low grade(MG and LG)sofa leathers.The health risk assessment indicated that leather materials barely pose non-carcinogenic and carcinogenic effects to residents.Given the abundance of VOC sources and the accumulation of health risks in the indoor environment,more stringent specifications concerning qualitative and quantitative content should be extended to provide VOC treatment basic for the manufacturing industry and obtain better indoor air quality.
基金supported by the National Natural Science Foundation of China(Nos.22075139 and 62288102)。
文摘Flexible zinc-ion batteries(FZIBs)have been acknowledged as a potential cornerstone for the future development of flexible energy storage,yet conventional FZIBs still encounter challenges,particularly concerning performance failure at low temperatures.To address these challenges,a novel anti-freezing leather gel electrolyte(AFLGE-30)is designed,incorporating ethanol as a hydrogen bonding acceptor.The AFLGE-30 demonstrates exceptional frost resistance while maintaining favorable flexibility even at-30℃;accordingly,the battery can achieve a high specific capacity of about 70 m Ah/g.Cu//Zn battery exhibits remarkable stability at room temperature,retaining~96%efficiency after 120 plating/stripping cycles at1 m A/cm^(2).Concurrently,the Zn//Zn symmetric batteries demonstrate a lifespan of 4100 h at room temperature,which is attributed to the enhancement of Zn^(2+)deposition kinetics,restraining the formation of zinc dendrites.Furthermore,FZIBs exhibit minimal capacity loss even after bending,impacting,or burning.This work provides a promising strategy for designing low-temperature-resistant FZIBs.
文摘The use of carbon from waste biomass has the potential to eliminate the drawbacks of Li-S batteries and improve their overall performance.Chrome-tanned-leather-shavings(CTLS)are a readily available waste product that can be transformed into porous carbon.We prepared an ac-tivated carbon by microwave pyrolysis combined with KOH activator using the CTLS as starting materials.The carbon had a specific surface area of 556 m^(2)g^(-1) and a honeycomb-like structure.Two kinds of N-doped activated carbons were then synthesized by thermal decomposition of the activated carbon,either combined with urea,or impregnated with eth-anolamine.Both N-doped activated carbons have an in-creased number of nitrogen and amine surface groups.However,only the urea treatment was effective in improv-ing the initial capacity of the cell(1363 mAh g^(-1)),which is probably linked to the sorption of long-chain polysulfides.This investigation confirms that it is possible to use the thermal de-composition of urea to obtain carbon materials from CTLS for use as the sulfur-host cathode in Li-S batteries and improve their performance.A radial basis function neural network was fitted to provide statistical support for the experimental results,which confirmed the importance of the nitrogen content of the carbons in determining the discharge capacity of the cells.
文摘This study explores vegan leather,an eco-friendly substitute for conventional animal-derived leather.Using materials like polyurethane,pineapple leaves,cork,and recycled plastics,vegan leather aims to transform the fashion industry and consumer products while addressing environmental concerns.Despite its advantages,challenges related to availability and durability persist.Theboomingmarket for vegan leather is expected to reach billions of dollars,reflecting a broader societal shift towards sustainable and cruelty-free alternatives.The review traces the historical development of vegan leather fromits origins in Germany to modern innovations likeMylo and Pinatex.By comparing these materials to conventional leather,the study assesses their potential to replace animal-derived leather.Looking at different types of sustainable leather,like synthetic,plant-based,mycelium,and collagen-based leather,shows how they connect with being environmentally friendly and made from natural materials.The ultimate aim is to contribute to ongoing discussions about transitioning to a circular economy,where durable bio-based and biodegradable materials offer a promising future for sustainable leather alternatives.
