Abstract: Composite materials for removing hydrophobic components from a fluid include a porous matrix polymer, carbon nanotubes grafted to surfaces of the porous matrix polymer, and polystyrene chains grafted to the carbon nanotubes. Examples of porous matrix polymer include polyurethanes, polyethylenes, and polypropylenes. Membranes of the composite material may be enclosed within a fluid-permeable pouch to form a fluid treatment apparatus, such that by contacting the apparatus with a fluid mixture containing water and a hydrophobic component, the hydrophobic component absorbs selectively into the membrane. The apparatus may be removed from the fluid mixture and reused after the hydrophobic component is expelled from the membrane. The composite material may be prepared by grafting functionalized carbon nanotubes to a porous matrix polymer to form a polymer-nanotube composite, then polymerizing styrene onto the carbon nanotubes of the polymer-nanotube composite.
Type:
Grant
Filed:
June 10, 2020
Date of Patent:
December 6, 2022
Assignees:
Saudi Arabian Oil Company, King Fahd University of Petroleum and Materials
Inventors:
Fahd Ibrahim Alghunaimi, Nadeem Baig, Hind Aldossary, Tawfik A. Saleh
Abstract: Composite materials for removing hydrophobic components from a fluid include a porous matrix polymer, carbon nanotubes grafted to surfaces of the porous matrix polymer, and polystyrene chains grafted to the carbon nanotubes. Examples of porous matrix polymer include polyurethanes, polyethylenes, and polypropylenes. Membranes of the composite material may be enclosed within a fluid-permeable pouch to form a fluid treatment apparatus, such that by contacting the apparatus with a fluid mixture containing water and a hydrophobic component, the hydrophobic component absorbs selectively into the membrane. The apparatus may be removed from the fluid mixture and reused after the hydrophobic component is expelled from the membrane. The composite material may be prepared by grafting functionalized carbon nanotubes to a porous matrix polymer to form a polymer-nanotube composite, then polymerizing styrene onto the carbon nanotubes of the polymer-nanotube composite.
Type:
Application
Filed:
June 10, 2020
Publication date:
December 16, 2021
Applicants:
Saudi Arabian Oil Company, King Fahd University of Petroleum and Materials
Inventors:
Fahd Ibrahim Alghunaimi, Nadeem Baig, Hind Aldossary, Tawfik A. Saleh
Abstract: Gold(I) complexes of formulae [Au{P(t-Bu)3}(S2CN(CH3)2)] (1), and [Au{P(t-Bu)3}(S2CN(C2H5)2)] (2) have been prepared by the reaction of equimolar amounts of [Au{P(t-Bu)3}(Cl)] with sodium dimethyldithiocarbamate monohydrate, and sodium diethyldithiocarbamate trihydrate respectively. Both complexes (1) and (2) are iso-structural having linear geometry. These gold(I) dithiocarbamate complexes show in vitro cytotoxic activities against A549 (human lung carcinoma), HeLa (human cervical cancer) and MCF7 (human breast cancer) cell lines.
Type:
Application
Filed:
September 30, 2016
Publication date:
January 26, 2017
Applicants:
KING FAHD UNIVERSITY OF PETROLEUM AND MATERIALS, KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGY
Inventors:
Anvarhusein AbdulKadir ISAB, Muhammad ALTAF, Muhammad MONIM-UL-MEHBOOB, Adam Ahmed Abdallah SELIMAN, Mohammed Ismail WAZEER