Synergistic effect between Ce-doped SnO2 and bio-carbon for electrocatalytic degradation of tetracycline: Experiment, CFD, and DFT

Li, Chi; Zhou, Qin

doi:10.1016/j.chemosphere.2023.138705

Cited by 9 publications

(1 citation statement)

References 45 publications

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“…Usually, heteroatoms such as Zr [24][25][26], Ti [27,28], Mn [29][30][31] and Sn [32][33][34][35][36][37] were doped into CeO 2 lattice-forming solid solutions to increase their redox properties. Among them, the materials incorporating Sn into CeO 2 have been applied in various fields, including sensors [37], solid-state films [38], electrode materials [39,40], biological applications [40,41] and catalysts [33,36,42,43]. And the most interesting applications of CeO 2 -SnO 2 were used for the environmental catalysts directly and catalyst supports [34][35][36][44][45][46][47].…”

Section: Introductionmentioning

confidence: 99%

Ce1−xSnxO2 Catalysts Prepared with Combustion Method for Catalytic Combustion of Ethyl Acetate

Jiang,

Wang,

et al. 2023

Catalysts

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A series of Ce1-XSnXO2 (X = 0, 0.2, 0.3, 0.4, 0.5, 0.9, 1) catalysts were synthesized via the combustion method. The physical and chemical structures of the prepared catalysts were systematically characterized by XRD, BET, SEM, TEM, XPS, and TPR. The Ce1-XSnXO2 catalysts have higher catalytic activities than the mono-oxide catalysts, as there are synergistic effects between CeO2 and SnO2. The catalytic activities of the Ce1−XSnXO2 catalysts are dependent on the X for the catalytic combustion of ethyl acetate (EA). The Ce1−XSnXO2 (X < 0.5) catalysts show high catalytic performances. Meanwhile, the Ce0.8Sn0.2O2 and Ce0.7Sn0.3O2 catalysts display the highest catalytic performance, with T50 = 190 °C and T90 = 210 °C. More importantly, the Ce0.8Sn0.2O2 catalyst exhibits superior thermal and catalytic activity stability. It is found that the Ce1-XSnXO2 catalysts form solid solutions, as the X is <0.5. The reduction of Sn4+ species to Sn2+ is significantly promoted by the CeO2, which is an important factor attributed to the high catalytic activities of the solid solution Ce1−XSnXO2 catalysts. The catalytic activities of the Ce1-XSnXO2 catalysts exhibit a strong correlation to the surface atomic areas of Ce3+ and Oα (VO). In other words, the higher surface atomic areas of Ce3+ and Oα (VO) are, the higher the catalytic activities will have.

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