摘要
在常温常压下,由乙二胺(EDA)和乙二醇及其衍生物(EGs)组成的混合体系可捕集SO_2并转化为一种SO_2储集材料(SO_2SM)。EDA+EGs体系呈现了强的捕集性能(0.364~0.662 gSO_2·gabsorbent^(-1))。FTIR,XPS和XRD结果确证了SO_2SM为一种烷基亚硫酸盐。以EG-SO_2SM为原料制备具有多种形貌的Ba SO_3或Ba SO_4,在此过程中,EG-SO_2SM不仅提供了原材料,而且可以释放EDA和EG用作表面活性剂,调控晶体的结晶化过程。
An innovative SO2 fixation into solid SO2-storage materials （SO2SMs） under mild condition wasdeveloped by employing the low-cost amine-glycol systems consisting of 1,2-ethanediamine （EDA） and ethylene glycol series （EGs）. In particularly, the systems of EDA＋EGs possessed a remarkable SO2 capture capability from 0.364 to 0.662 gso2·gabsorbent-1, which formed solid SO2SMs after washing with alcohol and drying under vacuum. The resulting SOzSMs were confirmed as alkyl sulfite by extensive characterization using FTIR, XPS and XRD techniques. Subsequently, the EG-based SO2SM （EG-SO2SM） was utilized to prepare BaSO3 or BaSO4 with different morphologies. The gradual release of EDA and EG from EG-SO2SM not only yielded raw material but also generated EDA and EG that acted as efficient surfactants for the subsequent recrystallization process.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2016年第12期2205-2211,共7页
Chinese Journal of Inorganic Chemistry
基金
国家自然科学基金(No.21666027,21166017)
教育部新世纪优秀人才项目(No.NCET-12-1017)
草原英才项目
内蒙古自然科学基金(No.2016JQ06)
内蒙古科委攻关项目资助~~
