Photo-induced PM2.5adsorption in molecular ferroelectric heterostructures

被引：5
作者：
Gao, Kaige [1 ]
Liu, Chunlin [1 ]
Zhang, Binbin [2 ,3 ,4 ]
机构：
[1] Yangzhou Univ, Coll Phys Sci & Technol, Yangzhou 225009, Jiangsu, Peoples R China
[2] Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China
[3] Northwestern Polytech Univ, Key Lab Radiat Detect Mat & Devices, Xian 710072, Peoples R China
[4] Northwestern Polytech Univ, Sch Mat Sci & Engn, Xian 710072, Peoples R China
来源：
JOURNAL OF MATERIALS CHEMISTRY C | 2020年 / 8卷 / 29期
关键词：
PHASE-TRANSITION; POLLUTION; PM2.5; APPORTIONMENT; FILM;
D O I：
10.1039/d0tc02057e
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Ferroelectrics are polar materials with large spontaneous polarization. Particulate matter, PM2.5, may be polarized and adsorbed by ferroelectrics due to spontaneous polarization. Micron-sized rods of molecular ferroelectric material diisopropylammonium perchlorate (DIPAP) were synthesized by a freeze-drying method to adsorb PM2.5. After low temperature freeze-drying and subsequent high temperature heating, a stable heterojunction DIPAP structure formed with a ferroelectric phase and non-switching phase. The special ferroelectric heterostructure in the DIPAP micron rods gave it excellent photo-induced PM(2.5)adsorption. The photoelectric effect has an important role in the photo-induced adsorption. This work shows that molecular ferroelectric heterostructure materials have the potential to be used in creating dust-free spaces and simple outdoor particulate matter removal strategies.
引用
收藏
页码：10104 / 10108
页数：5
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