Zunita Megawati
Department of Chemical Engineering, Faculty of Industrial Technology, Institut Teknologi Bandung, Jalan Ganesha 10, Bandung 40132, Indonesia.
Membranes (Basel). 2021 Apr 8;11(4):269. doi: 10.3390/membranes11040269.
Mercury (Hg) is one of heavy metals with the highest toxicity and negative impact on the biological functions of living organisms. Therefore, many studies are devoted to solving the problem of Hg separation from wastewater. Membrane-based separation techniques have become more preferable in wastewater treatment area due to their ease of operation, mild conditions and also more resistant to toxic pollutants. This technique is also flexible and has a wide range of possibilities to be integrated with other techniques. Graphene oxide (GO) and derivatives are materials which have a nanostructure can be used as a thin and flexible membrane sheet with high chemical stability and high mechanical strength. In addition, GO-based membrane was used as a barrier for Hg vapor due to its nano-channels and nanopores. The nano-channels of GO membranes were also used to provide ion mobility and molecule filtration properties. Nowadays, this technology especially nanofiltration for Hg removal is massively explored. The aim of the review paper is to investigate Hg removal using functionalized graphene oxide nanofiltration. The main focus is the effectiveness of the Hg separation process.
汞（Hg）是毒性最强的重金属之一，对生物体的生物功能具有负面影响。因此，许多研究致力于解决从废水中分离汞的问题。基于膜的分离技术因其操作简便、条件温和且对有毒污染物具有更强的耐受性，在废水处理领域变得更受青睐。该技术还具有灵活性，与其他技术集成有广泛的可能性。氧化石墨烯（GO）及其衍生物是具有纳米结构的材料，可作为具有高化学稳定性和高机械强度的薄而柔性的膜片使用。此外，基于GO的膜由于其纳米通道和纳米孔而被用作汞蒸气的屏障。GO膜的纳米通道还用于提供离子迁移率和分子过滤特性。如今，这项技术尤其是用于去除汞的纳滤技术正在被大量探索。这篇综述论文的目的是研究使用功能化氧化石墨烯纳滤去除汞。主要重点是汞分离过程的有效性。
