核化学与放射化学2017，Vol.39Issue(1)：22-29,8.DOI:10.7538/hhx.2016.YX.2015082
光化学分离水溶液中铂族金属元素的研究——Pd(Ⅱ)的光还原
Photochemical Separation of Platinum Group Metals in Aqueous Solution——Photoreduction of Pd(Ⅱ)
摘要
Abstract
In present work,the photochemical method was proposed to reduce Pd(Ⅱ) ions in Na2PdCl4 aqueous solution,and the effects of various experimental parameters including the wavelength of light,radical scavengers,concentration of Cl-and pH values were studied.The supernatant and precipitation products have been characterized by the UV-vis spectra and XPS respectively.The results indicate that Pd (Ⅱ) ions in aqueous solution can be extracted by the photoreduction method by a ratio of 98.4％,and the generation of Pd atoms is more efficient in the presence of 2-propanol than ethanol,methanol or tertiary butanol.High concentration Cl-will suppress the reduction of Pd (Ⅱ),and high pH value can enhance the reduction of Pd(Ⅱ).In addition,the extraction of palladium metal from the mixed solution of Na2PdCl4 and NdCl3 was also demonstrated.关键词
Pd(Ⅱ)/光还原/铂族金属/分离Key words
Pd(Ⅱ)/photoreduction/platinum group metals/separation分类
化学化工引用本文复制引用
丁作铭,李富海,刘哲,方仲,林铭章..光化学分离水溶液中铂族金属元素的研究——Pd(Ⅱ)的光还原[J].核化学与放射化学,2017,39(1):22-29,8.基金项目
国家自然科学基金资助项目(21377122) （21377122）
