高铁酸钾的制备及对双酚A的降解  

PREPARATION POTASSIUM FERRATE(Ⅵ) AND DEGRADATION OF BISPHENOL A

作　　者：丁博[1] 尹平河[1] 赵玲[1] 刘玉芳[1] 权真真[1] 

机构地区：[1]暨南大学化学系,广东广州510632

出　　处：《水处理技术》2011年第3期47-51,共5页Technology of Water Treatment

基　　金：国家自然科学基金(41076068)

摘　　要：采用次氯酸盐氧化法制取高铁酸钾,对其制备条件进行优化考察,并探讨高铁酸钾降解双酚A的规律。结果表明,控制反应温度10℃以下,用环己烷、甲醇、乙醚顺序洗涤产品,可获得纯度达97%高铁酸钾产品,产率为60%～75%;所得产品经XRD和FT-IR图谱表征,证明与高铁酸钾的标准图谱一致。室温、溶液pH=9.0、高铁酸钾与双酚A质量浓度比为5:1时,5 min内双酚A降解率达94%;降解过程符合2级动力学方程-dρ(BPA)/dt=kρ(K2FeO4)ρ(BPA)。表明高铁酸钾对双酚A有良好的降解效果。Ding Bo, Yin Pinghe, Zhao Ling, Liu Yufang, Quan Zhenzhen （Department of Chemistry, Jinan University, Guangzhou 510632, China） Abstract： Potassium fen＇ate （Ⅵ） has been widely known as a green water reagent due to its efficient and no secondary pollution. The procedure for preparing potassium ferrate （Ⅵ） and degradation ofbisphenol A （BPA） were studied in this paper. The results showed the produet was high purity （97%） and a high yield （60%-75%） by improved the reaction conditions. XRD and FT-IR spectra of the product were as consistent as the standard spectra of potassium fen＇ate （Ⅵ）. The optimal pH for BPA degradation was 9.0, and at room temperature and a Fe （Ⅵ）： BPA mass concentration ratio of 5：1, approximately 94% of the BPA was degraded after 5 min by spectrofluorimetry. The kinetics of the oxidation of bisphenol A by potassium ferrate （Ⅵ） was conformed to the second-order reaction, which equation was -dp（BPA）/dt=kp（K2FeO4）p（BPA）. The experiment showed potassium ferrate （Ⅵ）was a strong oxidant in the degradation ofbisphenol A.

关 键 词：高铁酸钾 双酚A 荧光分析法 降解 动力学 

分 类 号：TQ031.7[化学工程] X703.1[环境科学与工程—环境工程]