A comparison of TiO2 nanoparticles and nanotubes for catalytic gas phase destruction of H2S gas at high temperatures.
Reduction of H2S gas over Sulphur doped TiO2 nanoparticles and TiO2 nanotubes was studied in this work. Fixed bed catalytic system was used for the catalytic reduction of H2S gas at a high temperature of 450 degrees C under laboratory conditions. 99.97% reduction was achieved using S-doped TiO2. 2.89% Sulphur was adsorbed on S-doped TiO2 nanoparticles in the form of Ti(SO4)2, while 95.6% reduction was achieved in case of TiO2 nanotubes and the sulphur adsorption was 2.67%. The XRD, SEM, and EDX techniques were carried out to characterize the nanoparticles and nanotubes, while gas reduction analysis was carried out using GC-MS for gas samples.
National University of Sciences and Technology, Islamabad, Pakistan.
Naeem
N
Shahzad
Syed Tajammul
ST
Hussain
Asima
A
Siddiqua
Muhammad Anwar
MA
Baig
D000393:Air Pollutants / Q000737:chemistry* / Q000302:isolation & purification*; D002384:Catalysis; D006358:Hot Temperature; D006862:Hydrogen Sulfide / Q000737:chemistry* / Q000302:isolation & purification*; D008422:Materials Testing; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D014025:Titanium / Q000737:chemistry*
D000393:Air Pollutants; C009495:titanium dioxide; D014025:Titanium; D006862:Hydrogen Sulfide