Abstract Ag:CdO nanocubes and nanosphere were synthesised via ultrasonic assisted green approach using Citrus limon leaves and applied for photodegradation. Nanocubes and nanosphere morphology were evident from SEM and TEM. The degradation time and apparent rate constant (from pseudo-first-order) for (2%) Ag:CdO@MB, (2%) Ag:CdO@Rh-B, (5%) Ag:CdO@MB and (5%) Ag:CdO@Rh-B system were t = 33 min (K = 0.088 min−1), t = 42 min (K = 0.032 min−1), t = 18 min (K = 0.11 min−1), t = 24 min (K = 0.0759 min−1), respectively. (5%) Ag:CdO conserve 92% of its activity after five repeated cycle. Generation of HO and O2 − radicals lead photodegradation. Photocatalytic mechanism was elucidated and degradation pattern followed pseudo-first order kinetics.

中文翻译：

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超声波辅助绿色合成 Ag:CdO 纳米立方体和纳米球，使用柑橘叶有效降解有机染料

摘要 以柑橘叶为原料，通过超声辅助绿色法合成了Ag:CdO纳米立方体和纳米球，并用于光降解。从 SEM 和 TEM 可以明显看出纳米立方体和纳米球形态。(2%) Ag:CdO@MB、(2%) Ag:CdO@Rh-B、(5%) Ag:CdO@MB 和 (5 %) Ag:CdO@Rh-B 系统为 t = 33 min (K = 0.088 min−1), t = 42 min (K = 0.032 min−1), t = 18 min (K = 0.11 min−1), t = 24 分钟（K = 0.0759 min-1），分别。(5%) Ag:CdO 在五次重复循环后保留了 92% 的活性。H2O 和 O2 - 自由基的产生导致光降解。阐明了光催化机制，降解模式遵循伪一级动力学。