期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 392, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.jhazmat.2020.122350
关键词
Solar-driven interfacial evaporation; Radioactive wastewater treatment; Konjac Glucomannan; Reduced graphene oxide
资金
- NSFC [21601147, 21902130, 21976147]
- China Postdoctoral Fund [2018m630715]
- Sichuan Science and Technology Program [2019JDRC0118, 2019YFN0125, 2019YFS0469, 2019YFS0503, 2019YFS0461, 2019YFG0433, 2019YFG0434]
- Education Department of Sichuan Province [17zd1131, 18ZA0494]
- Sichuan's Training Program of Innovation and Entrepreneurship for Undergraduate [S201910619101]
- Plan Projects of Mianyang Science and Technology [18YFZJ003]
- Fundamental Science on Nuclear Wastes and Environmental Safety Laboratory [18kfhk03]
- Project of State Key Laboratory of Environment-friendly Energy Materials in SWUST [18fksy0218]
- SWUST [18zx7149, 17LZX526, 18LZXT04, 18LZX420, 19ycx0036]
As an effective way to obtain solar energy and separate the soluble contaminants from water, solar-driven interfacial evaporation is used in desalination, wastewater treatment, electricity generation, and domestic water heating system. Herein, we demonstrate a monolithic sponge with three-dimensional porous structure as the solar-energy evaporator, which is composed of hydrophilic polymer (Konjac Glucomannan, KGM) and solar absorbent (reduced graphene oxide, rGO). Under one sun irradiation, the sponge achieves a rapid evaporation rate (1.60 kg m(-2)h(-1)) and high interfacial water evaporation efficiency (92 %) due to its good absorption, photothermal, thermal insulation, and fast water transport properties. Meanwhile, the concentrations of radioactive elements (strontium, cesium, and uranium) in wastewater dropped from grams to micrograms after purification, even under radiation and acidic conditions. Additionally, the durability and repeatability of the sponge also have been verified. The results showed that solar-driven interfacial evaporation can effectively treat radioactive wastewater and enrich various radionuclides in a more energy-saving manner.
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