Abstract

The kinetic regularities of photochemical oxidation of stable complex cyanides (hexacyanoferrates) with persulfate (oxidizing system {UV/S₂O\(_{8}^{{2 - }}\)}) and hydrogen peroxide (oxidizing system {UV/H₂O₂}) under the influence of quasi-monochromatic UVC radiation from a KrCl excilamp (222 nm) have been studied. According to the efficiency and rate of the destruction of the target compound, the oxidizing systems under study can be arranged in the following series: {UV/S₂O\(_{8}^{{2 - }}\)} > {UV/H₂O₂} > {UV}. The effective destruction of hexacyanoferrates at micromolar concentrations (≤47 μM) to nontoxic and biodegradable compounds in the combined {UV/S₂O\(_{8}^{{2 - }}\)} system is due to the high oxidizing ability of reactive oxygen species formed as a result of persulfate photolysis.

中文翻译：

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使用 KrCl Excilamp 的准单色 UVC 辐射 (222 nm) 光诱导破坏复杂氰化物

摘要

过硫酸盐（氧化体系{UV/S ₂ O \(_{8}^{{2 - }}\) }）和过氧化氢（氧化体系{UV/ H ₂ O ₂ }) 在 KrCl 准单色 UVC 辐射 (222 nm) 的影响下进行了研究。根据目标化合物的破坏效率和速率，所研究的氧化体系可分为以下系列： {UV/S ₂ O \(_{8}^{{2 - }}\) } > {UV/H ₂ O ₂ } > {UV}。_{在组合的 {UV/S 2} O \(_{8}^{{2 - }}\) } 系统中，微摩尔浓度 (≤47 μM) 的六氰基铁酸盐能够有效破坏为无毒且可生物降解的化合物，这是由于高氧化性过硫酸盐光解作用形成活性氧的能力。