Effect of preparation parameters on optical properties of Cu and Ni doped TiO2 photocatalyst

Bashiri, R. and Mohamed, N.M. and Kait, C.F. and Sufian, S. and Khatani, M. and Hanaei, H. (2016) Effect of preparation parameters on optical properties of Cu and Ni doped TiO2 photocatalyst. In: UNSPECIFIED.

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Abstract

A series of bimetallic titania-supported copper-nickel (Cu-Ni/TiO2) photocatalysts were synthesized using sol-gel associated hydrothermal method coupling with design of experiment (DOE). Central composite design (CCD) was applied to study the single and combined effects of three primary parameters H2O, acid and Cu ratio to titanium tetraisopropoxide on the optical properties of Cu-Ni/TiO2. The absorbance of all photocatalysts were extended to the visible region with lower bandgap energies compared to commercial TiO2 (P25. Analysis of variance (ANOVA) revealed a second- order polynomial regression model to fit the experimental data in CCD. A comparison between predicted and experimental values represented a reasonable agreement amongst them with high coefficient of determination value (R2=0.94). The 3-D response surface plots imply that parameter water was more effective compared to the other parameters. © 2016 The Authors.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Additional Information: cited By 19; Conference of 4th International Conference on Process Engineering and Advanced Materials, ICPEAM 2016 ; Conference Date: 15 August 2016 Through 17 August 2016; Conference Code:79805799
Uncontrolled Keywords: Charge coupled devices; Copper compounds; Design of experiments; Energy gap; Optical properties; Photocatalysts; Process engineering; Regression analysis; Sol-gels; Titanium dioxide, Band gap energy; Central composite designs; Coefficient of determination; Hydrothermal methods; Preparation parameters; Response surface plot; Second-order polynomial; Titanium tetraisopropoxide, Analysis of variance (ANOVA)
Depositing User: Mr Ahmad Suhairi UTP
Date Deposited: 09 Nov 2023 16:19
Last Modified: 09 Nov 2023 16:19
URI: https://khub.utp.edu.my/scholars/id/eprint/7352

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