Huang Jin, Chu Zhen, Xing Christina, Li Wenting, Liu Zhongxin, Chen Wei
Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education, School of Materials and Chemical Engineering, Hainan University, Haikou 570228, China.
Hainan Provincial Key Lab of Fine Chem, School of Materials and Chemical Engineering, Hainan University, Haikou 570228, China.
Nanomaterials (Basel). 2022 May 10;12(10):1622. doi: 10.3390/nano12101622.
Getting drinking water from seawater is a hope and long-term goal that has long been explored. Here, we report graphene-loaded nonwoven fabric membranes for seawater purification based on photothermal heating. The photothermal membrane of non-woven fabric loaded with graphene oxide has high light absorption and strong heating effect, and its evaporation rate about 5 times higher than that of non-woven fabric. Under the condition of light intensity of 1 kW m, the evaporation rate can reach 1.33 kg m h. The results of cell activity test showed that the concentration of bacteria after photothermal membrane treatment decreased significantly. The photothermal membrane can be used for many times without greatly reducing the evaporation efficiency, which means that it is suitable for regional water purification and seawater desalination.
从海水中获取饮用水是一个长期以来一直探索的希望和目标。在此，我们报道了基于光热加热的用于海水净化的负载石墨烯的无纺布膜。负载氧化石墨烯的无纺布光热膜具有高吸光率和强加热效果，其蒸发速率约是非无纺布的5倍。在光强为1kW m的条件下，蒸发速率可达1.33kg m h。细胞活性测试结果表明，光热膜处理后的细菌浓度显著降低。该光热膜可多次使用而不会大幅降低蒸发效率，这意味着它适用于区域水净化和海水淡化。
