Thermal plasma synthesis of nanotitania and its characterization

Titanium dioxide (tio2) nanoparticles were prepared by the thermal plasma synthesis; which give a highly crystalline product. their morphological studies are carried out by using techniques like sem,edax,tem and sead. crystal size was calculated by xrd using scherrer equation; which is observed at two current amperes; at 80a size ranges between 25 and 30nm and at 120a size ranges between 30 and 42nm. composition analysis was done by tem-edax,ftir and fast fourier transform techniques. the ftir peaks clearly show that synthesized tio2 nanoparticles are in anatase phase; this phase is generally preferred because of its high photocatalytic activity,since it has a more negative conduction band edge potential (higher potential energy of photogenerated electrons),high specific area,nontoxic,photochemically stable and relatively in expensive. © 2011.