电容去离子
材料科学
石墨烯
海水淡化
氧化物
表面改性
纳米技术
电极
化学工程
海水淡化
活性炭
电化学
吸附
膜
化学
冶金
有机化学
物理化学
工程类
生物化学
作者
Alessandro Pedico,Sergio Bocchini,Elena Maria Tresso,Andrea Lamberti
标识
DOI:10.1002/admt.202101513
摘要
Abstract In this study, a novel functionalized graphene oxide (fGO) is proposed for application in water desalination. The fGO is obtained with a simple and scalable method. Pristine GO is functionalized with (2‐(acryloyloxy)ethyl)trimethylammonium through a two‐step functionalization. Then, it is mixed with activated carbon and coated onto a metallic current collector. Material characterization techniques such as electron microscopy, thermal analyses, and infrared spectroscopy are employed to study the physical and chemical structures of the proposed materials. This process provides a porous electrode useful for capacitive deionization (CDI). The desalination performance is compared to the performance of bare activated carbons, showing a remarkable improvement. The final device reaches a value of around 17 mg g ‐1 of salt removal, with a charge efficiency of 98%. The findings from this study lay the groundwork for future research, contributing in increasing the existing knowledge on materials for CDI.
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