Zhang, Y., Chi, H., Zhang, W., Sun, Y., Liang, Q., Gu, Y., & Jing, R. (2014). Highly Efficient Adsorption of Copper Ions by a PVP-Reduced Graphene Oxide Based On a New Adsorptions Mechanism. Nano-Micro Letters, 6(1), 80-87. https://doi.org/10.1007/BF03353772