期刊
SEPARATION AND PURIFICATION TECHNOLOGY
卷 254, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.seppur.2020.117615
关键词
Solar-driven interfacial water evaporation; Textile wastewater; MXene; Carbon nanotubes; Cotton fabric
资金
- Fundamental Research Funds for the Central Universities [CUSF-DH-D-2020063, 2232020G-04]
- Graduate Student Innovation Fund of Donghua University [CUSF-DH-D-2020063]
The research has developed a promising solar-driven interfacial water evaporation technique, utilizing a constructed MXene/Carbon nanotubes/Cotton fabric with strong optical absorption and high evaporation rate for efficient textile wastewater purification.
The development of effective and low-cost techniques to purify textile wastewater has received intensive attention, but the applicability and practicality of many methods still remain challenging. Solar-driven interfacial water evaporation is a promising method and herein, a novel MXene/Carbon nanotubes/Cotton fabric was fabricated via layer-by-layer assembly to be used as solar steam generation for textile wastewater purification. Benefiting from the strong interfacial interactions, the composite fabric exhibited robust optical absorption, light-to-thermal conversion, and water transport properties. The evaporation rate reaches 1.35 kg m(-2) for water and > 1.16 kg m(-2)h(-1) for textile wastewater under one sun illumination, which is superior to those fabric-based materials in reported literature. The concentrations of organic-inorganic contaminants in condensed freshwater can be well reduced, which is always ignored but important to actual application. Furthermore, the reusability test and outdoor experiment were performed to demonstrate the photothermal properties when applied in practical situation. In sum, the results demonstrated that high-efficiency and durable properties coupled with simple preparation process make this composite material a potential candidate for wastewater purification via solar-evaporation.
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