Catalytic Combustion of Biodiesel Wastewater on Red Mud Catalyst DOI Open Access

Shangzhi Yu,

Weihua Yuan,

Qinglong Xie

et al.

Materials, Journal Year: 2025, Volume and Issue: 18(3), P. 652 - 652

Published: Feb. 1, 2025

The resource utilization of red mud (RM) has attracted widespread attention for achieving the waste-to-waste treatment goal. In this work, RM catalysts were synthesized at different calcination temperatures by a simple method. temperature had great effect on catalyst activity in catalytic combustion biodiesel wastewater. calcined 350 °C (RM350) exhibited best activity. chemical oxygen demand (COD) and COD removal rate treated wastewater reached almost 0 mg/L 100%, respectively. was significantly higher than 90.703% prepared α-Fe2O3 same temperature. Characterization results showed that high specific surface area 60.03–64.15 m2/g well-developed mesoporous structure, as did not exceed 400 °C, which beneficial adsorption diffusion. Meanwhile, most Fe2O3 existed an amorphous form abundantly presented surface, lowering reduction enhancing its reducibility. Furthermore, dispersion, leading to increase efficiency.

Language: Английский

Catalytic Combustion of Biodiesel Wastewater on Red Mud Catalyst DOI Open Access

Shangzhi Yu,

Weihua Yuan,

Qinglong Xie

et al.

Materials, Journal Year: 2025, Volume and Issue: 18(3), P. 652 - 652

Published: Feb. 1, 2025

The resource utilization of red mud (RM) has attracted widespread attention for achieving the waste-to-waste treatment goal. In this work, RM catalysts were synthesized at different calcination temperatures by a simple method. temperature had great effect on catalyst activity in catalytic combustion biodiesel wastewater. calcined 350 °C (RM350) exhibited best activity. chemical oxygen demand (COD) and COD removal rate treated wastewater reached almost 0 mg/L 100%, respectively. was significantly higher than 90.703% prepared α-Fe2O3 same temperature. Characterization results showed that high specific surface area 60.03–64.15 m2/g well-developed mesoporous structure, as did not exceed 400 °C, which beneficial adsorption diffusion. Meanwhile, most Fe2O3 existed an amorphous form abundantly presented surface, lowering reduction enhancing its reducibility. Furthermore, dispersion, leading to increase efficiency.

Language: Английский

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