Synthesis and characterization of photocatalist TiO₂ doped with Ni for treatment of waste model from nuclear facility

Abstract

Synthesis and characterization of photocatalist TiO2 doped with Ni for treatment of waste model from nuclear facility. Ni doped TiO2 as photocatalyst material has been made. Addition of dopant Ni was carried out by impregnation technique. The Ni content was varied between 3, 5, 7 and 10 wt.%. The TiO2-Ni samples obtained were then characterized by X-Ray Diffractometer and SEM-EDS. The catalyst test is carried out using UV-VIS. The anatase crystal structure appears at 2θ = 25.41°, 37.89°, 48.13°, 55.14° 62.78°. The NiO crystal structure was also found at X-Ray peak 2θ = 38.8°. It obvious that addition of Ni dopants decreased significantly the TiO2 crystal main size The anatase crystal structure formed on TiO2-Ni (3 wt.%) is 84.21%. The results of SEM-EDS analysis showed the best success rate of 91.6% wt 3 wt.% Ni addition. The photocatalist material TiO2-Ni was then applied to treat the standard non-radioactive liquid waste material from BATAN nuclear facility modeled by a mixture based on methylene blue exposed with UV light with variation of time. The degradation rate during processing of methylene blue waste with TiO2-Ni (3 wt.%) using UV light was measured 0.021/hour. The longer the UV irradiation time is the greater the degradation of methylene blue. The making of TiO2 photocatalyst by adding variations of Ni dopant has been successfully caried out, with a fairly good success rate. The highest success rate is addition of Ni by 3% with a success rate of 91.6%.