Upadhyay, Soin, & Roy (2014)  have explained in their research that the major emphasis of the researchers is to provide the pure potable water to communities, after the rapid growing population which can be done now with development of new techniques, materials and devices. Catalysts is progressing, whereas, the development of new metal oxide, the slower pace of albeit, high surface area rapid and concurrent development. Catalyst supports, in the development of the multifunctional catalysts, the unprecedented promise has been provided by the graphene and its functionalized derivates. Multiple roles include photocatalysts , antimicrobial agents and adsorbents which are very effective for the water pollutants like heavy metal, water borne pathogens and organic molecules (but not limited to) can be performed by the metal oxide/grapheme as per recent studies. [1] 

        This article explains about the water treatment with the application of metal oxide/graphene and remediation of water with the help of disinfectant, photocatalyst and adsorbent. It is very important to investigate the metal oxide/graphene, long term biological impact on other living beings before its application as disinfectant at mass level because mankind health is very sensitive issue and water quality is directly linked to it [1].

References of Graphene/metal oxide composites of Water treatment