Application of Graphene in Water Purification

Graphene and its derivatives have emerged as promising materials for water purification due to their unique properties, including high surface area, excellent conductivity, and tenable chemical reactivity. This paper explores the application of graphene-based materials, such as graphene oxide (GO), reduced graphene oxide (rGO), and graphene composites, in various water treatment processes. The high porosity and surface chemistry of graphene make it ideal for adsorption, filtration, and removal of contaminants like heavy metals, organic pollutants, and microorganisms from water. In addition, graphene’s ability to enable advanced filtration technologies such as membrane-based systems, electrochemical processes, and photo catalytic degradation offers significant improvements in water purification efficiency and selectivity. Challenges related to scalability, material functionalization, and long-term stability is also discussed. The paper highlights recent advancements in the use of graphene materials for sustainable and efficient water treatment, and provides an overview of future research directions in this field to optimize performance and commercialization.