PHYSICAL CHARACTERIZATION OF Ni(II) DOPED TiO2 NANOCRYSTAL BY SOL-GEL PROCESS

https://doi.org/10.22146/ijc.21400

Prasetyo Hermawan(1*), Harno Dwi Pranowo(2), Indriana Kartini(3)

(1) Student of Doctorate Program, Department of Chemistry, Faculty of Mathematic and Natural Sciences, Universitas Gadjah Mada
(2) Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada Sekip Utara, Yogyakarta 55281
(3) Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada Sekip Utara, Yogyakarta 55281
(*) Corresponding Author

Abstract


Ni(II) doped titanium dioxide has been prepared by using sol-gel process. Ni(II) ion was incorporated into titanium dioxide by reacting Ni(II) chloride with titanium tetraisopropoxide (TTiP)-acetyl acetone mixture in isopropanol solvent. The effects of transition metal ion doping on the physical properties have been investigated. UV/Vis spectrophotometer, TGA-DTA, X-ray diffraction (XRD) and DR-UV/Vis were used to investigate the spectra absorption of nanosol, nanoparticle thermal transition, structure of crystal and band edge absorption, respectively. The results at addition of 5% Ni/Ti revealed that absorbance of nanosol increased from 0.811 max: 342 nm) to 2.283 (λmax: 350 nm). The crystallization temperature transition from anatase to rutile decreased from 500 °C to 475 °C. The particle size increased from 18.51 nm to 20.35 nm, while the band gap energy (Eg) decreased from 2.73 eV to 2.51 eV.

Keywords


TiO2 photocatalyst; Ni(II) doped; sol-gel

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DOI: https://doi.org/10.22146/ijc.21400

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Indonesian Journal of Chemisty (ISSN 1411-9420 / 2460-1578) - Chemistry Department, Universitas Gadjah Mada, Indonesia.

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