Moch. Saifur Rijal, Antony Mahendra, Kusuma Dwi Lestari, Aprillia Nurcahya Putri, Munasir Munasir, Diah Hari Kusumawati, Nugrahani Primary Putri, Zainul Arifin Imam, Nurul Hidayat, Ahmad Taufiq, Sunaryono Sunaryono
Nowadays, graphene has attracted scientific community's attention due to its outstanding properties. In this paper, we reported the absorption capacity of Tuban silica sand to dyes in drinking water that could be improved by graphene coating onto the silica surface. Coatings of sand with graphene from sugar through the hydrothermal-vapor heating method were conducted at a temperature of 700 °C. The pattern of X-ray diffraction (XRD) of the as-prepared silica sand shows the existence of a quartz crystalline phase, with a weight percentage of 98%. In contract with that XRD profile, the graphene-coated sand (GCS) XRD pattern tends to be amorphous due to the presence of amorphous carbon. Furthermore, the UV-Vis test reveals a significant reduction in peak absorption intensity of methylene blue by silica sand and the GCS material. © 2020 Author(s).
Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Surabaya, Ketintang Campus, Surabaya, 60231, Indonesia; Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jl. Semarang 5, Malang, 65145, Indonesia
