Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China.
Department of Food Science and Engineering, College of Light Industry and Food, Nanjing Forestry University, Nanjing 210037, China; Joint International Research Lab of Lignocellulosic Functional Materials and Provincial Key Lab of Pulp and Paper Sci & Tech, Nanjing Forestry University, Nanjing 210037, China.
Carbohydr Polym. 2022 Nov 15;296:119847. doi: 10.1016/j.carbpol.2022.119847. Epub 2022 Jul 9.
Osmotic energy reserves in estuaries, coupled with the ubiquitous solar energy, could be harnessed through emerging nanofluidic membranes to reduce the energy crisis. Herein, we mixed WS with high concentration of metal phase and cellulose nanofiber (CNF) to fabricate composite membranes by vacuum filtration. Incorporated CNF as space charge donors increases the ion flux through the enlarged interlayer spacing in the WS/CNF composite membrane. By simulating seawater and river water, the power density of the composite membrane reached to 1.99 W m. Furthermore, due to the photoelectric characteristics of WS, the composite membrane exhibits photoresponsivity, which generated a photocurrent of 177 nA through illumination. Taking the advantage of the optoelectronic properties of the composite membrane, the power density under illumination is twice than that of the dark state. Based on the results, this material design strategy can enhance the ion transport in nanofluidic membranes for efficient generation of clean energy.
河口的渗透能量储备加上无处不在的太阳能，可以通过新兴的纳米流膜来利用，以减少能源危机。在这里，我们通过真空过滤将 WS 与高浓度的金属相和纤维素纳米纤维（CNF）混合来制造复合膜。掺入的 CNF 作为空间电荷供体，通过 WS/CNF 复合膜中扩大的层间间距增加离子通量。通过模拟海水和河水，复合膜的功率密度达到 1.99 W m。此外，由于 WS 的光电特性，复合膜表现出光电响应性，通过光照产生 177 nA 的光电流。利用复合膜的光电特性，光照下的功率密度是暗态的两倍。基于这些结果，这种材料设计策略可以增强纳米流膜中的离子输运，从而有效地产生清洁能源。
