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Ni-Co doped TiO catalyst for efficient photocatalytic degradation of Malachite Green under UV and direct sunlight

Research Square
2024
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Article Description

In the present study combustion synthesized TiO nanoparticles were wet impregnated with Ni, Co and Ni-Co, respectively. The photocatalytic performance of synthesized catalysts was evaluated against Malachite Green dye. The synthesized materials were characterized for crystallite size, surface morphology, elemental composition, and band-gap using X-ray diffraction, scanning electron microscopy, energy dispersive spectroscopy, and ultra-violet diffused reflectance spectroscopy, respectively. The optimum parameters for maximum degradation were found by examining the effects of catalyst loading, initial dye concentration and light intensity. A comparative analysis of Ni-doped, Co-doped, and Ni-Co-doped TiO photocatalysts was conducted. The results indicate superior photocatalytic activity of Ni-Co doped TiO among the catalysts investigated under UV light. The degradation kinetics was studied and the underlying degradation mechanism is proposed with the help of LC-MS analysis. Furthermore, a comparative study on the degradation under solar radiation using Co-Ni/TiO was conducted.

Bibliographic Details

Krushika Mhalshekar; Mrunalini Gaydhane; Sharad Sontakke; Vivek Pawar

Springer Science and Business Media LLC

Biochemistry, Genetics and Molecular Biology; Immunology and Microbiology; Medicine; Neuroscience; Psychology; Dentistry

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