Patents by Inventor Nazim Hasan

Nazim Hasan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Optimization of Photocatalytic Hydrogen Generation Using Aqueous Bio-Alcohols and Plasmonic Metals Deposited on Semiconductor Composite Nanofibers
    Publication number: 20240075465
    Abstract: The present invention combines the advantages of fabrication of semiconductor heterostructure (Ag3PO4—WO3) with plasmonic metals (Pt and Ag) with optical interference to optimize the visible light photo response of plasmonic metals deposited semiconductor (Pt—Ag/Ag3PO4—WO3) for visible light assisted H2 generation utilizing the aqueous bio-alcohols. Crystalline Ag3PO4 and WO3 nanofibers were synthesized by microwave and electrospinning methods. Three different WO3 nanofibers composition (5, 10 and 15 wt. %) were used to obtain Ag3PO4/WO3 nanocomposite heterostructures, which are effective visible light active photo catalysts. Further, a simple, enviro-friendly, and cost-effective biogenic synthesis method have been achieved using Salvia officinalis extract to decorate Pt and Ag metal nanoparticles on the surface of Ag3PO4—WO3 composites. Presence of bioactive agents in the extract are responsible for the Pt and Ag3PO4 reduction and for prevention of the Pt nanoparticles from aggregation in aqueous medium.
    Type: Application
    Filed: October 5, 2023
    Publication date: March 7, 2024
    Applicant: Jazan University
    Inventors: Ahmed Hussain JAWHARI, Ibrahim Ali RADINI, Nazim HASAN, Maqsood Ahmad MALIK, Katabathini NARASIMHARAO
  • Optimization of photocatalytic hydrogen generation using aqueous bio-alcohols and plasmonic metals deposited on semiconductor composite nanofibers
    Patent number: 11896961
    Abstract: The present invention combines the advantages of fabrication of semiconductor heterostructure (Ag3PO4—WO3) with plasmonic metals (Pt and Ag) with optical interference to optimize the visible light photo response of plasmonic metals deposited semiconductor (Pt—Ag/Ag3PO4—WO3) for visible light assisted H2 generation utilizing the aqueous bio-alcohols. Crystalline Ag3PO4 and WO3 nanofibers were synthesized by microwave and electrospinning methods. Three different WO3 nanofibers composition (5, 10 and 15 wt. %) were used to obtain Ag3PO4/WO3 nanocomposite heterostructures, which are effective visible light active photo catalysts. Further, a simple, enviro-friendly, and cost-effective biogenic synthesis method have been achieved using Salvia officinalis extract to decorate Pt and Ag metal nanoparticles on the surface of Ag3PO4—WO3 composites. Presence of bioactive agents in the extract are responsible for the Pt and Ag3PO4 reduction and for prevention of the Pt nanoparticles from aggregation in aqueous medium.
    Type: Grant
    Filed: October 5, 2023
    Date of Patent: February 13, 2024
    Assignee: Jazan University
    Inventors: Ahmed Hussain Jawhari, Ibrahim Ali Radini, Nazim Hasan, Maqsood Ahmad Malik, Katabathini Narasimharao