Graphite oxide coated particulate material and method of making thereof

摘要

A process for conversion of conventional sand granules (or other particulates) to a ‘core-shell’ adsorbent granules in which GO (or GO-f) coating imparts nano structural features on the surface of the sand granules (or other particulates). Such materials are useful in a variety of engineering applications such as water purification, catalysis, capacitors, proppants, casting, and magnetic shielding.

主权项

1. A method of forming a graphite oxide coated particulate material, wherein the method comprises the steps of:
(a) dispersing graphite oxide in a liquid to form a liquid dispersion comprising graphite oxide colloids, wherein the graphite oxide is dispersible in the liquid; (b) adding particulates to the liquid dispersion of graphite oxide colloids; and (c) mixing the particulates with the liquid dispersion of the graphite oxide colloids to form the graphite oxide coated particulate material; wherein the method excludes chemical reduction of the graphite oxide colloids, and wherein the formed graphite oxide coated particulate material comprises:
(i) a core comprising the particulate, and(ii) a shell surrounding the core, wherein the shell comprises the graphite oxide.