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US 11,897,789 B2Granted
Polymer/carbon nanotube composite and methods for wastewater treatment
AssigneeKing Fahd University of Petroleum and Minerals
InventorsOthman Charles Sadeq Al Hamouz, Isaiah Olabisi Adelabu, Tawfik Abdo Saleh Awadh
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Abstract
Polymer/carbon nanotube composites made up of melamine, aldehyde, diaminoalkane monomeric units and carbon nanotubes having activated carbonyl groups. A method for removing heavy metals, such as Pb(II) from an aqueous solution or an industrial wastewater sample with these composites is introduced. A process of synthesizing the polymer/carbon nanotube composites is also described.
Claims20
A composite, which is a polycondensation product formed by a reaction of:
- melamine;
- an aldehyde of formula (I)
- a diaminoalkane of formula (II)
- carbon nanotubes comprising activated carbonyl groups;
- wherein:
- R1 is selected from the group consisting of an arylalkyl group which is optionally substituted, a cycloalkyl group which is optionally substituted, and an aryl group which is optionally substituted;
- R2 is selected from the group consisting of a hydrogen, an alkyl group which is optionally substituted, a cycloalkyl group which is optionally substituted, an aryl group which is optionally substituted, and an arylalkyl group which is optionally substituted;
- R3 is selected from the group consisting of a hydrogen, an alkyl group which is optionally substituted, a cycloalkyl group which is optionally substituted, an aryl group which is optionally substituted, and an arylalkyl group which is optionally substituted;
- n is a positive integer in the range of 12 to 20;
- and
- a weight percentage of the carbon nanotubes relative to a total weight of the composite is 0.005 wt % to 0.5 wt %.
8 more elements
Dependencies are inferred from the claim text.