化工进展2023，Vol.42Issue(12)：6676-6686,11.DOI:10.16085/j.issn.1000-6613.2023-0803
类普鲁士蓝的制备及其活化PMS降解双酚S
Preparation of Prussian blue and its activation of PMS for degrading bisphenol S
摘要
Abstract
A Prussian blue-like compound(CoFe-PBA)was synthesized by a simple co-precipitation method for activating permonosulfate(PMS)to degrade organic pollutant bisphenol S(BPS).CoFe-PBA showed high activity on the removal of bisphenol S from activated PMS.Scanning electron microscopy,X-ray diffraction,and X-ray photoelectron spectroscopy were used to characterize CoFe-PBA.The results showed that CoFe-PBA was composed of Co3[Fe(CN)6]2,which was in nanometer scale.The surface was evenly distributed with C,Fe,Co,O elements,with abundant active sites.Under the conditions of catalyst dosage of 300mg/L,PMS dosage of 400mg/L and pH=5.89,the degradation system of CoFe-PBA/PMS could remove 73.77%BPS within 40min,and it was sensitive to acidic and coexisting ions(SO42-,NO3-and Cl-).The alkaline environment could promote the rapid activation of PMS.Repeated experiments showed that the system had good stability,and its activity only decreases by 26.70%after four repeated uses.The mechanism analysis showed that CoFe-PBA interacts with PMS,which changed the valence state of metal sites and produced various active substances to degrade BPS.The main active species was 1O2,and BPS was completely degraded through three degradation processes.The analysis of byproducts indicated BPS could be degraded to ring-opening products and finally be transformed to minerialzed products CO2 and H2O.Low energy consumption,low cost,rapid and simple preparation of CoFe-PBA provided ideas for green degradation of bisphenol S by activating PMS.关键词
双酚S/过硫酸盐活化/类普鲁士蓝/过渡金属Key words
bisphenol S/persulfate activation/Prussian blue analogue/transition metal分类
资源环境引用本文复制引用
杨有威,曾亦婷,郭昌胜,罗玉霞,高艳,王春英..类普鲁士蓝的制备及其活化PMS降解双酚S[J].化工进展,2023,42(12):6676-6686,11.基金项目
江西省自然科学基金面上项目(20232BAB203040) （20232BAB203040）
江西理工大学"青年优秀人才支持计划"(JXUSTQJYX2016003) （JXUSTQJYX2016003）
2020年国家大学生创新创业训练计划(202010407004). （202010407004）
