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US 11,628,416 B2Granted
Graphene coated glass material and uses thereof
AssigneeEdwin Safari
InventorsEdwin Safari, Mohammad Tofigh Rayhani
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AssigneeEdwin Safari
InventorsEdwin Safari, Mohammad Tofigh Rayhani
Estimating the term…
A graphene coated crushed glass particle adsorbent is provided for the removal of heavy metals and other contaminants in from solutions such as wastewaters, contaminated surface water and groundwater. The adsorbent comprises crushed (e.g. recycled) glass coated with graphene nano-sheets using a staged thermal binding process and the silicas in the glass as a catalyst. The adsorbent may be configured for use in both in-situ and ex-situ treatment systems and is capable of removing heavy metals and other inorganic and organic contaminants. The strong adsorptive bond between contaminants and the graphene coating on crushed glass particles can also lead to alternative applications of the end of life adsorbent, such as base material in road and pavement (e.g. cement-like) construction materials.
An adsorbent comprising crushed glass particles coated with graphene (GCGPs), wherein graphene outcroppings are formed from a surface of the crushed glass particles or formed from a base coating of graphene on the surface of the crushed glass particles.
A method of coating crushed glass particles with graphene to form an adsorbent, comprising the steps of mixing crushed glass particles in a sugar solution to form a mixture and heating the mixture in stages to thermally bind carbon in the form of graphene to the surface of the crushed glass particles and form GCGPs, wherein graphene outcroppings are formed from at least one of a surface of the crushed glass particles or a base coating of graphene on the surface of the crushed glass particles.
A method for detoxifying a contaminated solution comprising the step of contacting the contaminated solution with an adsorbent comprising GCGPs, wherein graphene outcroppings are formed from at least one of a surface of the crushed glass particles or a base coating of graphene on the surface of the crushed glass particles, and wherein the adsorbent substantially detoxifies the contaminated solution of one or more inorganic and/or organic contaminants through adsorption onto the graphene.
Dependencies are inferred from the claim text.