期刊
DESALINATION
卷 462, 期 -, 页码 29-38出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.desal.2019.04.005
关键词
Cotton-CNT fabric; Seawater desalination; Salting-out; Washability; High stability
资金
- National Natural Science Foundation of China [51773036]
- Shuguang Program by Shanghai Education Development Foundation
- Shanghai Municipal Education Commission [18SG29]
- Natural Science Foundation of Shanghai [18ZR1401700]
- Program for Innovative Research Team in University of Ministry of Education of China [IRT_16R13]
- Science and Technology Commission of Shanghai Municipality [16JC1400700]
- Innovation Program of Shanghai Municipal Education Commission [2017-01-07-00-03-E00055]
- International Joint Laboratory for Advanced fiber and Low-dimension Materials [18520750400]
- Fundamental Research Funds for the Central Universities [LZA2017001, CUSF-DH-D-2018007, BCZD2019002]
- DHU Distinguished Young Professor Program
Photothermal membranes have shown tremendous potential for solar-driven seawater desalination, but their practical applications are hindered by the relatively high cost and solid salt separation. To overcome these limitations, we have developed low-cost and washable photothermal fabrics by dyeing traditional cotton fabrics with carbon nanotube (CNT)-based ink. CNT dyed cotton (cotton-CNT) fabrics exhibit strong optical absorption in 250-2500 nm with a total solar absorption efficiency of 95.7%. Using a polystyrene (PS) foam as the thermal insulator, cotton-CNT fabrics exhibit a high seawater evaporation rate of 1.59 Kg m(-2) h(-1) under simulated sunlight (1.0 KW m(-2)). More importantly, the fabric can be cleaned and recycled by removing the salts formed after evaporation, through a simple hand-washing process. These cotton-CNT fabrics may provide a new platform for low-cost, high-efficient and large-area seawater desalination under sunlight irradiation.
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