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To develop and evaluate the performance of a Tm2FeSbO7/BiYO3 heterojunction photocatalyst for the degradation of sulfamethoxazole.

March 15, 2026InorganicsOpen Access

Study on the Construction and Performance Measurement of Tm2FeSbO7/BiYO3 Heterojunction Photocatalyst and the Photocatalytic Degradation of Sulfamethoxazole in Pharmaceutical Wastewater Under Visible Light Irradiation

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To develop and evaluate the performance of a Tm2FeSbO7/BiYO3 heterojunction photocatalyst for the degradation of sulfamethoxazole.
Synthesis of Tm2FeSbO7 using solid-phase high-temperature sintering method.
Creation of Z-type heterojunction with BiYO3 through ball-milling technique.
Characterization using X-ray diffraction and Mossbauer spectrum analysis.
Assessment of photocatalytic performance under visible light irradiation.
The TBHP exhibited a 99.51% removal efficiency for sulfamethoxazole after 115 minutes of irradiation.
Compared to other catalysts, TBHP improved SMX degradation by 1.17 to 4.06 times.
Total organic carbon mineralization reached 98.10% with the TBHP, outperforming single-component and conventional catalysts.

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Photocatalytic degradation of sulfamethoxazole in wastewater using a heterojunction catalyst indicates enhanced removal efficacy.

Luan et al. (2026) studied this question.

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