Abstract In this research, Bi7O9I3-ZnO nanocomposite was designed via facile sono-dispersion route and influence of ultrasound power (P = 0, 100, 200, 300) was investigated. Synthesized photocatalysts were utilized for deterioration of methylene blue in water under solar light irradiation. XRD, FESEM, EDX, BET-BJH, FTIR, DRS, PL and UV–Vis were utilized to study physicochemical properties of the photocatalysts. Also, pHpzc of Bi7O9I3-ZnO (P = 300) was measured in order to research the influence of water acidity on performance of nanophotocatalyst. According to the outcomes, Bi7O9I3-ZnO (P = 300) photocatalyst with a degradation efficiency of 94.6% had highest degradation efficiency. It is associated to positive effect of ultrasound irradiation on photocatalyst activity. In fact, increasing of sonication power, not only decreased the crystallite size, relative crystallinity and total pore volume, but it also improved the dispersion of nanoparticles on the surface of photocatalyst. Several functional factors including concentrations of dye contaminant, pH and photocatalyst loading are examined.

中文翻译：

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Bi7O9I3 纳米粒子在 ZnO 上的分布通过超声波感应方法在太阳光照射下用于光催化水处理的强化

摘要 在这项研究中，Bi7O9I3-ZnO 纳米复合材料是通过简单的声分散途径设计的，并研究了超声功率（P = 0、100、200、300）的影响。合成的光催化剂用于在太阳光照射下降解水中的亚甲蓝。XRD、FESEM、EDX、BET-BJH、FTIR、DRS、PL 和 UV-Vis 被用来研究光催化剂的物理化学性质。此外，还测量了 Bi7O9I3-ZnO（P = 300）的 pHpzc，以研究水酸度对纳米光催化剂性能的影响。结果表明，降解效率为 94.6% 的 Bi7O9I3-ZnO（P = 300）光催化剂具有最高的降解效率。它与超声辐照对光催化剂活性的积极影响有关。事实上，增加声波处理能力，不仅降低了微晶尺寸、相对结晶度和总孔体积，而且还改善了纳米颗粒在光催化剂表面的分散。检查了几个功能因素，包括染料污染物的浓度、pH 值和光催化剂负载。