Lead bismuth oxybromide (PbBiO₂Br) is a powerful perovskite-like semiconductor that can be used with visible light. PbBiO₂Br is a perovskite-like photocatalyst that has recently received scholarly attention. Until now, scholars have not published studies regarding PbBiO₂Br/PbO/g-C₃N₄-mediated crystal violet (CV) dye and 2-Hydroxybenzoic Acid (HBA) photodegradation under irradiation with visible light. The current paper reports the first composite isolation of PbBiO₂Br/PbO/g-C₃N₄; characterization was realized through XRD, TEM, FE-SEM-EDS, HR-XPS, FI-IR, PL, BET, and UV-DRS. Photocatalytic efficiency observation proved that using PbBiO₂Br/PbO/g-C₃N₄ produced the highest observed reaction rate, namely 0.1981 h⁻¹. This derivation exceeded the derivations for the PbBiO₂Br, PbO, g-C₃N₄ photocatalysts, and PbBiO₂Br/PbO by 1.23, 34.2, 4.3, and 1.2 times, respectively. Four scavengers demonstrated quenching effects. The O₂^•− radical was critical to HBA degradation, whereas the ^•OH radical and ¹O₂ species played minor roles in the observed CV dye degradation. The present paper proposes and explains possible photocatalytic degradation mechanisms. This study's methods of PbBiO₂Br/PbO/g-C₃N₄ synthesis and photocatalytic degradation of CV can be useful for future treatment of wastewater.

氢溴酸铋（PbBiO ₂ Br）是一种功能强大的钙钛矿型半导体，可与可见光一起使用。PbBiO ₂ Br是一种钙钛矿型光催化剂，最近受到了学术界的关注。到目前为止，学者们尚未发表有关在可见光照射下PbBiO ₂ Br / PbO / gC ₃ N ₄介导的结晶紫（CV）染料和2-羟基苯甲酸（HBA）光降解的研究。本论文报道了PbBiO ₂ Br / PbO / gC ₃ N ₄的首次复合隔离; 通过XRD，TEM，FE-SEM-EDS，HR-XPS，FI-IR，PL，BET和UV-DRS实现了表征。光催化效率观察证明，使用PbBiO ₂ Br / PbO / gC ₃ N ₄产生最高的观察到的反应速率，即0.1981 h ^-1。该推导比PbBiO ₂ Br，PbO，gC ₃ N ₄光催化剂和PbBiO ₂ Br / PbO的推导_分别高1.23倍，34.2倍，4.3倍和1.2倍。四个清除剂表现出淬灭作用。O ₂ ^•-自由基对于HBA降解至关重要，而^• OH自由基和¹ O ₂物种在观察到的CV染料降解中起较小作用。本文提出并解释了可能的光催化降解机理。这项研究的PbBiO ₂ Br / PbO / gC ₃ N _4的合成方法和CV的光催化降解可用于将来的废水处理。