Highly efficient photocatalytic degradation of landfill leachate by Boron-doped TiO2 photocatalyst

被引：3
作者：
Lalavi R. [1 ]
Salehiravesh F. [2 ]
Nasrollah Gavgani J. [1 ,2 ]
Adelnia H. [3 ]
Nikazar M. [1 ]
机构：
[1] Department of Chemical Engineering, Amirkabir University of Technology, Tehran
[2] Department of Polymer Engineering and Colour Technology, Amirkabir University of Technology, Tehran
[3] Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD
来源：
International Journal of Environmental Studies | 2023年 / 80卷 / 06期
关键词：
crystallinity; landfill leachate; photocatalysis; TiO[!sub]2[!/sub;
D O I：
10.1080/00207233.2022.2044684
中图分类号：
学科分类号：
摘要：
Boron-doped TiO2 (B-TiO2) particles were prepared via the sol-gel approach. The structural and optical properties of the particles were characterised by X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET), diffuse reflectance spectroscopy (DRS), Fourier-transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), dynamic light scattering (DLS) and transmission electron microscopy (TEM). The response surface method (RSM) was used to optimise the activity of B-TiO2 catalysts for degradation of landfill leachate. It was found that the B-TiO2 has a larger BET surface areas, improved crystallinity, and more intense absorbance in the UV range than has TiO2 (P25 Degussa). Consequently, the photocatalysis degradation of the landfill leachates by B-TiO2 was much higher than that by pure TiO2. Moreover, the kinetic constant of a B-TiO2 photocatalyst was ca. 41% higher than that of pure TiO2. © 2022 Informa UK Limited, trading as Taylor & Francis Group.
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页码：1673 / 1688
页数：15
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