期刊
CHEMICAL ENGINEERING JOURNAL
卷 347, 期 -, 页码 263-272出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2018.04.008
关键词
Photocatalysis; Flowing water; Piezoelectric potential; PVDF; BiOCl0.5Br0.5
资金
- National Natural Science Foundation of China [51502143]
- Natural Science Foundation of Jiangsu Province [BK20150919]
- Postgraduate Education Reform Project of Jiangsu Province [KYCX17_0972]
- Six Talent Peaks Project in Jiangsu Province [XCL-029]
- Jiangsu Province Postdoctoral Fund [1302096C]
- Key University Science Research Project of Jiangsu Province [15KJB430022]
- Priority Academic Program Development of the Jiangsu Higher Education Institutions (PAPD)
- Qing Lan Project
Fast charge transfer and low recombination rate are two vital requirements to achieve high photocatalytic activity. In this work, we report the conversion of flowing water energy to piezoelectric potential on a new type of flexible composite film PVDF-Na0.5Bi0.5TiO3-BiOCl0.5Br0.5 (PV-N-B) containing PVDF-Na0.5Bi0.5TiO3 (PV-N) substrate and BiOCl0.5Br0.5, which significantly boosts the charge transfer of the photocatalytic composite film, resulting in improved photocatalytic capability by 2.33 times. The role of piezoelectric potential in photocatalysis process has been discussed in detail and the results reveal that higher potential output is more beneficial for photocatalytic performance enhancement. Moreover, the photocatalytic degradation intermediates of tetracycline (TC) over PV-N-B were detected by liquid chromatography-mass spectrometer and the possible photodegradation pathway of TC has been reasonably proposed. It is verified that superoxide radicals are the main active species for PV-N-B to degrade TC. The durability experiments demonstrate the good stability of flexible composite film PV-N-B. In a wider perspective, this work provides an efficient flexible composite film,
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据