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US 10,850,993 B2Granted
Method for making and using an adsorbent
AssigneeKing Fahd University of Petroleum and Minerals
InventorsMuataz Ali Atieh, Aamir Abbas, Basim Ahmed Abussaud
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Abstract
Methods and nanocomposites for the adsorptive removal of aromatic hydrocarbons such as benzene, toluene, ethyl benzene and xylene from contaminated water sources and systems are provided. The nanocomposites contain carbon nanotubes and metal oxide nanoparticles such as Al2O3, Fe2O3 and ZnO impregnated on a surface and/or in pore spaces of the carbon nanotubes. Methods of preparing and characterizing the nanocomposite adsorbents are also provided.
Claims6
A method for making an adsorbent and removing benzene from an aqueous solution, comprising:
- calcining a mixture comprising multi walled carbon nanotubes having an average outer diameter of 10-20 nm and an average inner diameter of 1-10 run and aluminum nitrate, to form a nanocomposite comprising the multi walled carbon nanotubes and aluminum oxide nanoparticle clusters;
- contacting the nanocomposite comprising the multi walled carbon nanotubes and the aluminum oxide nanoparticle clusters with the aqueous solution to adsorb the benzene from the aqueous solution,
- wherein the aluminum oxide nanoparticle clusters are impregnated on an outer surface and/or in pore spaces of the multi walled carbon nanotubes.
Dependencies are inferred from the claim text.