膜蒸馏
海水淡化
膜
反渗透
工艺工程
环境友好型
环境科学
蒸馏
材料科学
环境工程
化学工程
废物管理
工程类
化学
色谱法
生态学
生物化学
生物
作者
M Frappa,Antonio Esau Del Rio Castillo,Francesca Macedonio,G. Di Luca,Enrico Drioli,Annarosa Gugliuzza
出处
期刊:Water Research
[Elsevier]
日期:2021-09-01
卷期号:203: 117503-117503
被引量:7
标识
DOI:10.1016/j.watres.2021.117503
摘要
Water scarcity forces the science to find the most environmentally friendly propulsion technology for supplying plentiful freshwater at low energy costs. Membrane Distillation well meets criteria of eco-friendly management of natural resources, but it is not yet competitive on scale. Herein, we use a dichalchogenide compound (Bi2Te3) as a conceivable source to accelerate the redesign of advanced membranes technologies such as thermally driven membrane distillation. A procedure based on assisted dispersant liquid phase exfoliation is used to fill PVDF membranes. Key insights are gained in the crucial role of this topological material confined in hydrophobic membranes dedicated to recovery of freshwater from synthetic seawater. Intensified water flux together with reduced energy consumption is obtained into one pot, thereby gathering ultrafast production and thermal efficiency in a single device. Bi2Te3-enabled membranes show ability to reduce the resistance to mass transfer while high resistance to heat loss is opposite. Permeate flux is kept stable and salt rejection is higher than 99.99% during 23 h-MD test. Our results confirm the effectiveness of chalcogenides as frontier materials for new-concept water desalination through breakthrough thermally-driven membrane distillation, which is regarded as a new low-energy and sustainable solution to address the growing demand for access to freshwater.
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