生物塑料
材料科学
光催化
纤维素
木质素
生物量(生态学)
纳米技术
化学
废物管理
有机化学
生物
生态学
工程类
催化作用
作者
Siyuan Fang,Xingyi Lyu,Tian Tong,Aniqa Ibnat Lim,Tao Li,Jiming Bao,Yun Hang Hu
标识
DOI:10.1038/s41467-023-36783-8
摘要
Large numbers of leaves fall on the earth each autumn. The current treatments of dead leaves mainly involve completely destroying the biocomponents, which causes considerable energy consumption and environmental issues. It remains a challenge to convert waste leaves into useful materials without breaking down their biocomponents. Here, we turn red maple dead leaves into an active three-component multifunctional material by exploiting the role of whewellite biomineral for binding lignin and cellulose. Owing to its intense optical absorption spanning the full solar spectrum and the heterogeneous architecture for effective charge separation, films of this material show high performance in solar water evaporation, photocatalytic hydrogen production, and photocatalytic degradation of antibiotics. Furthermore, it also acts as a bioplastic with high mechanical strength, high-temperature tolerance, and biodegradable features. These findings pave the way for the efficient utilization of waste biomass and innovations of advanced materials.
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