synthesis of n-cnt-tio2 nanocatalyst: application in direct oxidation of h2s to sulfur

In this study, nitrogen-doped mwcnt-tio2 nanocatalyst (n-cnt-tio2) with 1, 3, and 5 wt. % nitrogen has been synthesized and its catalytic activity in the oxidation of h2s to sulfur has been studied at a temperature of 200°c and o2/h2s mole ratio of 0.5 and compared with those of neat tio2 and tio2-cnt hybrid. their structure, morphology, and chemical properties have been determined by n2 adsorption-desorption isotherms, xrd, sem, tem, uv, and ft-ir. n-cnt-tio2 exhibited improved performance compared with tio2-cnt due to the presence of nitrogen groups. in addition, the nanocatalyst was comparable (up to 5%) with tio2 because of the presence of a lower bandgap and synergistic effects. furthermore, 5%n-cnt-tio2 has shown the highest catalytic activity among n-cnt-tio2 nanocatalysts due to its higher surface area and pore volume.