Biomimetic solar evaporator for continuous clean water production with synergistic organic dye wastewater remediation

被引：4

作者：

Zhao, Peng ^{[1
]}

Xu, Jialu ^{[1
]}

Li, Jiakai ^{[1
]}

Xia, Meng ^{[1
]}

Yang, Tao ^{[2
]}

Liu, Guang ^{[1
]}

Yu, Jiahui ^{[1
]}

Chen, Qi ^{[1
]}

Shen, Yijun ^{[1
]}

Li, Meng ^{[4
]}

Wang, Dong ^{[3
]}

Xiao, Juanxiu ^{[1
]}

机构：

[1] Hainan Univ, Collaborat Innovat Ctr Marine Sci & Technol, Sch Marine Sci & Engn, State Key Lab Marine Resource Utilizat South China, Haikou 570228, Peoples R China

[2] Hainan Med Univ, Sch Pharm, Haikou 571199, Peoples R China

[3] Hainan Univ, Sch Biomed Engn, State Key Lab Digital Med Engn, Key Lab Biomed Engn Hainan Prov, Sanya 572025, Peoples R China

[4] Chongqing Univ, Sch Energy & Power Engn, MOE Key Lab Low grade Energy Utilizat Technol & Sy, CQU NUS Renewable Energy Mat & Devices Joint Lab, Chongqing 400044, Peoples R China

来源：

DESALINATION | 2024年 / 586卷

基金：

中国博士后科学基金; 海南省自然科学基金; 中国国家自然科学基金;

关键词：

Biomimetic fibrous membrane; Solar evaporator; Seawater desalination; Dye degradation; Marine agriculture; FRAMEWORKS; EFFICIENT;

D O I：

10.1016/j.desal.2024.117819

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Solar-driven water evaporation is recognized as an environment-friendly technology for sustainable clean water generation, serving the needs of both desalination and wastewater purification. However, its practical application is constrained by challenges such as single functionality and significant salt accumulation. Inspired by the transpiration of vascular plant, this work introduces a scalable and cost-effective biomimetic evaporator (PyCOF/ Tri-Layers), consisting of a biomimetic hierarchical fibrous membrane (Tri-Layers) and a composite photothermal layer (PyCOF). Furthermore, the PyCOF composite, featuring an aloe-like flower structure, enhances the light trapping (95.1 %) through multiple scattering, realizing simultaneous desalination and azo dye degradation. Based on the PyCOF/Tri-Layers evaporator, we demonstrate a suspended multi-section hanging evaporation structure sustaining a consistent evaporation rate of approximately 1.41 kg m- 2 h-1 over 15 days without salt accumulation, achieving above 99.3 % removal of dye pollutants within 120 min under one sun irradiation. Moreover, in outdoor experiments, the improved evaporator realizes a daily clean water yield rate of 8.73 kg m- 2 d-1, and the collected water is suitable for supporting crop cultivation within an integrated solar desalination-cultivation system. This work not only provides a one-stone-two-birds approach for generating clean water from polluted seawater, but also presents promising possibilities for offshore self-sustainable agriculture production.

引用

页数：11