In this study, CuWO₄ materials were synthesized via facile hydrothermal and heat treatment. The physicochemical properties of the synthesized materials were well analyzed by advanced characterization methods such as SEM, XRD, FT-IR and UV–Vis. Photocatalytic performance of these synthesized CuWO₄ materials were investigated via degradation of tetracycline (TC) under excitation of visible light, which was generated from a 32 W compact lamp. The material calcined at 500 °C contained only triclinic CuWO₄ phase. At low calcination temperature lower than 500 °C, WO₃ and CuWO₄·2H₂O remained in the synthesized materials while CuO and Cu₂O newly occurred when the material was calcined at 600 °C. The occurrence of impurities phases significantly decreased photocatalytic activity of the synthesized material. The synthesized CuWO₄-500, which was calcined at 500 °C, exhibited high visible light absorption capacity with band-gap energy (E_g) of approximately 2.13 eV. The CuWO₄-500 sample also exhibited great photocatalytic ability for decomposition of TC even under excitation of provided visible light. The study also investigated that pH 6 was optimal pH for TC degradation by the synthesized CuWO₄. Under optimized pH (pH 6), the synthesized CuWO₄ photocatalytically degraded over 60% TC after 2 h being irradiated by visible light.

在这项研究中，通过方便的水热处理和热处理合成了CuWO ₄材料。通过先进的表征方法，如SEM，XRD，FT-IR和UV-Vis，可以很好地分析合成材料的理化性质。通过在可见光的激发下降解四环素（TC）来研究这些合成的CuWO ₄材料的光催化性能，该可见光是由32 W紧凑型灯产生的。在500°C下煅烧的材料仅包含三斜晶CuWO ₄相。在低于500°C的低煅烧温度下，WO ₃和CuWO ₄ ·2H ₂ O保留在合成材料中，而CuO和Cu ₂当材料在600°C下煅烧时，新近发生O。杂质相的出现显着降低了合成材料的光催化活性。在500°C下煅烧的合成CuWO ₄ -500表现出高可见光吸收能力，带隙能量（E _g）约为2.13 eV。即使在提供的可见光激发下，CuWO ₄ -500样品也显示出强大的光催化分解TC的能力。研究还研究了pH 6是合成CuWO ₄降解TC的最佳pH 。在最佳pH（pH 6）下，可见光照射2 h后，合成的CuWO ₄在60％TC上光催化降解。