In this paper, a kind of photocatalyst Zn-doped Bi₂O₂CO₃ was prepared by a mixed solvent hydrothermal method and characterized by relevant techniques. Through the optimization of experimental conditions, when n_Zn: n_Bi=0.5:1 and pH=9, Zn-doped Bi₂O₂CO₃ had the highest photocatalytic activity, and the degradation rate of methylene blue was 3.1 times higher than that of Bi₂O₂CO₃. According to the free radical capture experiment, superoxide radical (•O₂^–) and hole (h⁺) and are the decisive active substances in the photocatalytic process.

中文翻译：

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锌掺杂Bi ₂ O ₂ CO _3的合成，表征及光催化性能

本文采用混合溶剂水热法制备了一种光催化剂Zn掺杂的Bi ₂ O ₂ CO ₃，并通过相关技术对其进行了表征。通过优化实验条件，当n _Zn：n _Bi = 0.5：1，pH = 9时，Zn掺杂的Bi ₂ O ₂ CO ₃的光催化活性最高，亚甲基蓝的降解率是其的3.1倍。的Bi ₂ O ₂ CO ₃。根据自由基捕获实验，超氧自由基（•O ₂ ^–）和空穴（h ⁺），是光催化过程中的决定性活性物质。