期刊
ACS APPLIED MATERIALS & INTERFACES
卷 12, 期 46, 页码 51864-51872出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.0c16596
关键词
laser-induced graphene; hierarchical wood; solar water treatment; antifouling; antibacterial
资金
- Young Scientists Fund of the National Natural Science Foundation of China [21905240]
- State Key Laboratory of Marine Pollution (SKLMP) Seed Collaborative Research Fund
Advances in solar steam generation have made a promise in mitigating the water scarcity problem. However, their practical use could be curtailed by the vaporized pollutants and the longevity limited by biofouling and salt-fouling that are often overlooked. Here, a flake of wood is reported to be engineered into a miniaturized solar water treatment device by a laser engraving process and demonstrates advantages over common solar systems. The device is structured to mimic the centralized water treatment plants, which contains a superhydrophilic graphene bottom layer for lipophilic organic matter rejection and antifouling, an intrinsic wood microchannels layer for water transport and thermal management, and a hydrophobic graphene top layer for solar-driven desalination while inhibiting salt deposition. The pore size of wood differentiates the water flux and hence the evaporation performance, and the balsa wood with a larger pore size possesses a higher evaporation rate of 1.6 +/- 0.02 kg m(-2) h(-1) compared with pine wood. The hierarchical design achieves a solar energy conversion efficiency of 110% and a lipophilic organic matter removal efficiency of >90% and significantly improves longevity even at high salinity. This work illuminates a sustainable and cost-effective pathway for water treatment and shows potential for wastewater reuse.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据