摘要
沸石是一类具有有序微孔网络的多孔材料,其中高硅沸石具有较高的硅铝比,呈现优异疏水性,被工业广泛应用。目前,高硅沸石已被用于去除水中有机微污染物(OMPs),如各种药物、个人护理产品等。本综述对高硅沸石的性质和基本原理总结,分析高硅沸石吸附OMP的机理,评估高硅沸石在水处理中吸附OMP的潜在机遇和挑战。总结发现,吸附容量与表面疏水性/亲水性和结构特征密切相关,其微孔体积和孔径与吸附OMP相关;高硅沸石具有选择性去除背景有机物的竞争性吸附潜力。此外,通过氧化实现对OMPs的吸附能力再生。因此,具有良好去除OMPs应用前景。
Zeolite is a kind of porous material with ordered microporous network, in which high silica zeolite is widely used in industry since its high Si/Al ratio and excellent hydrophobicity. At present, high silica zeolite has been used to remove organic micro pollutants(OMPs)such as various drugs and personal care products from wastewater. This review the properties and basic principles of high silica zeolites were summarized, the mechanism of OMP adsorption by high silica zeolites was analyzed, and the potential opportunities and challenges of OMP adsorption by high silica zeolites during treatment process were also evaluated. It was found that the adsorption capacity was closely related to the surface hydrophobicity/hydrophilicity and structural characteristics, the micropore volume and pore size were responsible to the adsorption of OMP. High silica zeolites had competitive adsorption potential for selective removal of background organics. In addition, the adsorption capacity of OMPs can be regenerated by oxidation. Therefore, it was potential to use high silica zeolite for the removal of OMPs.
作者
陈原
张庚庚
施宇震
关清卿
CHEN Yuan;ZHANG Geng-geng;SHI Yu-zhen;GUAN Qing-qing(Guizhou Zhengye Engineering Technology Investment Co.,Ltd.,Guizhou Guiyang 550009;Faculty of Environmental Science and Engineering,Kunming University of Science and Technology,Yunnan Kunming 650500;Faculty of Civil Engineering and Mechanics,Kunming University of Science and Technology,Yunnan Kunming 650500,China)
出处
《广州化工》
CAS
2022年第7期11-14,共4页
GuangZhou Chemical Industry
基金
重点研发计划项目(No.2019YFC1805904)
国家自然基金(21767015)。
关键词
高硅沸石
有机微污染物
吸附
水处理
改性材料
high silica zeolite
organic micro pollutants
adsorbent
water treatment
modified materials
