针对我国4家胶合木企业的两类产品进行了从摇篮到大门阶段的碳足迹评价,并评估了其生命周期不同阶段的碳储量。研究表明:运输阶段是胶合木碳足迹的主要来源,占比超72%。原料获取阶段的碳排放主要来源于锯材,生产阶段的碳排放与电力消耗...针对我国4家胶合木企业的两类产品进行了从摇篮到大门阶段的碳足迹评价,并评估了其生命周期不同阶段的碳储量。研究表明:运输阶段是胶合木碳足迹的主要来源,占比超72%。原料获取阶段的碳排放主要来源于锯材,生产阶段的碳排放与电力消耗及不同省份电力排放因子密切相关。正交胶合木因高能耗工序及大面积施胶,其电能及胶黏剂导致的碳排放高于层板胶合木。在同类型胶合木中,产品及层板结构、树种和运输路径亦影响其碳足迹。胶合木是天然储碳建材,其碳储量为736.6~883.9 kg CO_(2)e/m^(3),在使用阶段可长期稳定封存。胶合木的回收利用可延长碳储期,但不合理的废弃处理方式可能导致部分碳储释放,从而造成更高的碳排放。研究结果可为胶合木行业提供数据参考和理论借鉴。展开更多
Wood,once regarded primarily as a structural material,possesses rich physicochemical complexity that has long been underexplored.In the context of industrialization and carbon imbalance,it is now emerging as a renewab...Wood,once regarded primarily as a structural material,possesses rich physicochemical complexity that has long been underexplored.In the context of industrialization and carbon imbalance,it is now emerging as a renewable and multifunctional platform for green nanotechnologies.Recent advances in wood nanotechnology have enabled the transformation of natural wood into programmable substrates with tailored nanoarchitectures,establishing it as a representative class of bio-based nanomaterials.This review systematically categorizes wood-specific nanoengineering strategies—including thermal carbonization,laser-induced graphenization,targeted delignification,nanomaterial integration,and mechanical processing—highlighting their mechanisms and impacts on wood's multiscale structural and functional properties.Importantly,these functionalization strategies can be flexibly combined in a modular,“Lego-like”manner,enabling wood to be reconfigured and optimized for diverse application scenarios.We summarize recent progress in applying functionalized wood to sustainable technologies such as energy storage(e.g.,metal-ion batteries,Zn-air systems,supercapacitors),water treatment(e.g.,adsorption,photothermal filtration,catalytic degradation),and energy conversion(e.g.,solar evaporation,ionic thermoelectrics,hydrovoltaics,and triboelectric nanogenerators).These studies reveal how nanoengineered wood structures can enable efficient charge transport,selective adsorption,and enhanced light-to-heat conversion.Finally,the review discusses current challenges—such as scalable fabrication,material integration,and long-term environmental stability—and outlines future directions for the development of wood-based platforms in next-generation green energy and environmental systems.展开更多
文摘针对我国4家胶合木企业的两类产品进行了从摇篮到大门阶段的碳足迹评价,并评估了其生命周期不同阶段的碳储量。研究表明:运输阶段是胶合木碳足迹的主要来源,占比超72%。原料获取阶段的碳排放主要来源于锯材,生产阶段的碳排放与电力消耗及不同省份电力排放因子密切相关。正交胶合木因高能耗工序及大面积施胶,其电能及胶黏剂导致的碳排放高于层板胶合木。在同类型胶合木中,产品及层板结构、树种和运输路径亦影响其碳足迹。胶合木是天然储碳建材,其碳储量为736.6~883.9 kg CO_(2)e/m^(3),在使用阶段可长期稳定封存。胶合木的回收利用可延长碳储期,但不合理的废弃处理方式可能导致部分碳储释放,从而造成更高的碳排放。研究结果可为胶合木行业提供数据参考和理论借鉴。
基金supported by the National Key Research and Development(R&D)Plan(No.2023YFB3209203)National Natural Science Foundation of China(No.62333012,No.92248302)+3 种基金supported by Jiangsu Province Key Laboratory of Embodied Intelligence Robotics Technologythe Collaborative Innovation Center of Suzhou Nano Science&Technologythe 111 ProjectJoint International Research Laboratory of Carbon-Based Functional Materials and Devices。
文摘Wood,once regarded primarily as a structural material,possesses rich physicochemical complexity that has long been underexplored.In the context of industrialization and carbon imbalance,it is now emerging as a renewable and multifunctional platform for green nanotechnologies.Recent advances in wood nanotechnology have enabled the transformation of natural wood into programmable substrates with tailored nanoarchitectures,establishing it as a representative class of bio-based nanomaterials.This review systematically categorizes wood-specific nanoengineering strategies—including thermal carbonization,laser-induced graphenization,targeted delignification,nanomaterial integration,and mechanical processing—highlighting their mechanisms and impacts on wood's multiscale structural and functional properties.Importantly,these functionalization strategies can be flexibly combined in a modular,“Lego-like”manner,enabling wood to be reconfigured and optimized for diverse application scenarios.We summarize recent progress in applying functionalized wood to sustainable technologies such as energy storage(e.g.,metal-ion batteries,Zn-air systems,supercapacitors),water treatment(e.g.,adsorption,photothermal filtration,catalytic degradation),and energy conversion(e.g.,solar evaporation,ionic thermoelectrics,hydrovoltaics,and triboelectric nanogenerators).These studies reveal how nanoengineered wood structures can enable efficient charge transport,selective adsorption,and enhanced light-to-heat conversion.Finally,the review discusses current challenges—such as scalable fabrication,material integration,and long-term environmental stability—and outlines future directions for the development of wood-based platforms in next-generation green energy and environmental systems.
