Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

NH2-MIL-125-Derived TiO2@N-Doped C Visible Light Catalyst for Wastewater Treatment

Version 1 : Received: 4 December 2023 / Approved: 5 December 2023 / Online: 5 December 2023 (14:30:41 CET)

A peer-reviewed article of this Preprint also exists.

Wang, W.; Qiang, W.; Chen, C.; Sun, D. NH2-MIL-125-Derived N-Doped TiO2@C Visible Light Catalyst for Wastewater Treatment. Polymers 2024, 16, 186. Wang, W.; Qiang, W.; Chen, C.; Sun, D. NH2-MIL-125-Derived N-Doped TiO2@C Visible Light Catalyst for Wastewater Treatment. Polymers 2024, 16, 186.

Abstract

The utilization of titanium dioxide (TiO2) as a photocatalyst for the treatment of wastewater has attracted significant attention in the environmental field. Herein, we have prepared a NH2-MIL-125-derived TiO2@N-doped C Visible Light Catalyst through an in-situ calcination method. The nitrogen element in the organic connector is released through calcination, simul-taneously doping into the sample, thereby enhancing its spectral response to cover the visible region. The as-prepared TiO2@N-doped C catalyst exhibited preserved cage structure even after calcination, thereby alleviating the optical shielding effect and further augmenting its photo-catalytic performance by increasing the reaction sites between the catalyst and pollutants. The calcination time of the TiO2@N-doped C-450 °C catalyst was optimized to achieve a balance be-tween the TiO2 content and nitrogen doping level, ensuring efficient degradation rates for basic fuchsin (99.7%), Rhodamine B (89.9%), and tetracycline hydrochloride (93%) within 90 minutes.

Keywords

Titanium dioxide; NH2-MIL-125; N/TiO2@C; Visible light photocatalysis; Wastewater Pollutants

Subject

Chemistry and Materials Science, Materials Science and Technology

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