US 11,986,801 B1
Synthesis of a Au-(TiO2-x/WO3-x) semiconductor composite using fluidized bed chemical vapor deposition (FBCVD)
Hayat Khan, Al-Ahsa (SA)
Assigned to KING FAISAL UNIVERSITY, Al-Ahsa (SA)
Filed by KING FAISAL UNIVERSITY, Al-Ahsa (SA)
Filed on Feb. 12, 2024, as Appl. No. 18/438,788.
Int. Cl. B01J 23/30 (2006.01); B01D 53/00 (2006.01); B01D 53/86 (2006.01); B01J 23/52 (2006.01); B01J 35/33 (2024.01); B01J 35/39 (2024.01); B01J 35/45 (2024.01); B01J 35/51 (2024.01); B01J 35/61 (2024.01); B01J 35/63 (2024.01); B01J 35/64 (2024.01); B01J 37/00 (2006.01); B01J 37/02 (2006.01); B01J 37/18 (2006.01)
CPC B01J 23/30 (2013.01) [B01D 53/007 (2013.01); B01D 53/8687 (2013.01); B01J 23/52 (2013.01); B01J 35/33 (2024.01); B01J 35/39 (2024.01); B01J 35/45 (2024.01); B01J 35/51 (2024.01); B01J 35/615 (2024.01); B01J 35/635 (2024.01); B01J 35/647 (2024.01); B01J 37/0072 (2013.01); B01J 37/0221 (2013.01); B01J 37/18 (2013.01); B01D 2255/106 (2013.01); B01D 2255/20707 (2013.01); B01D 2255/20776 (2013.01); B01D 2255/9202 (2013.01); B01D 2255/9205 (2013.01); B01D 2255/9207 (2013.01); B01D 2257/504 (2013.01); B01D 2258/06 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method of synthesizing an Au—(TiO2-y/WO3-x) semiconductor composite, the method comprising:
loading tungsten oxide (WO3) powder in a fluidized bed reactor followed by H2 treatment to produce reduced tungsten oxide (WO3) nanoparticles or WO3-x nanoparticles;
producing titanium dioxide (TiO2) nanoparticles or TiO2-y nanoparticles in-situ;
coupling the TiO2-y nanoparticles with the WO3-x nanoparticles to provide a titanium dioxide/tungsten oxide nanocomposite (reduced TiO2/WO3-x); and
simultaneous substitutional doping of TiO2-y and WO3-x in the titanium dioxide/tungsten oxide nanocomposite (reduced TiO2/WO3-x) with gold ions (Au) to obtain the Au—(TiO2-y/WO3-x) semiconductor composite;
wherein x has a value between 0.33 and 0.37.