多孔PZT压电陶瓷膜的制备及其抗污染性能

doi:10.11949/j.issn.0438-1157.20160994

化工学报 ›› 2017, Vol. 68 ›› Issue (3): 1224-1230.DOI: 10.11949/j.issn.0438-1157.20160994

• 材料化学工程与纳米技术 • 上一篇下一篇

多孔PZT压电陶瓷膜的制备及其抗污染性能

毛恒洋, 邱鸣慧, 范益群

南京工业大学化工学院, 材料化学工程国家重点实验室, 国家特种分离膜工程技术研究所, 南京 210009

收稿日期:2016-07-13 修回日期:2016-11-28 出版日期:2017-03-05 发布日期:2017-03-05
通讯作者: 邱鸣慧,qiumh_1201@njtech.edu.cn
基金资助:
国家自然科学基金项目（21506093，91534108）；江苏省自然科学基金项目（BK20150947）；国家高科技研究发展计划项目（2012AA03A606）。

Porous PZT ceramic membranes and their anti-fouling performance

MAO Hengyang, QIU Minghui, FAN Yiqun

State Key Laboratory of Materials-oriented Chemical Engineering, National Engineering Research Center for Special Membranes, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, Jiangsu, China

Received:2016-07-13 Revised:2016-11-28 Online:2017-03-05 Published:2017-03-05
Contact: 10.11949/j.issn.0438-1157.20160994
Supported by:
supported by the National Natural Science of China (21506093,91534108),the Natural Science Foundation of Jiangsu Province (BK20150947) and the National High Technology Research and Development Program of China (2012AA03A606).

摘要/Abstract

摘要：

以 PbZr_xTi_1-xO₃（PZT）压电陶瓷粉体为原料，通过干压成型的方法制备多孔PZT陶瓷膜，考察了煅烧温度对多孔PZT陶瓷膜的机械强度、孔隙率以及纯水渗透性能的影响。当煅烧温度为950℃时，可制备出纯水渗透率为850 L·m^-2·h^-1·MPa^-1，孔径为300 nm，机械强度为47.8 MPa，孔隙率为34%的多孔PZT陶瓷膜。在此基础上，考察了极化温度与极化电压对多孔PZT陶瓷膜压电性能的影响，并对极化后的PZT压电陶瓷膜进行萃取和表面等离子刻蚀处理。结果表明：极化温度为120℃、极化电压强度为4 kV·mm^-1，极化后经热乙醇萃取及表面等离子刻蚀4 min后，多孔PZT压电陶瓷膜在外加交流电为20 V时，产生的共振振幅信号值达34.8 mV。将制备的多孔PZT压电陶瓷膜在粒径为600 nm的含油乳化液中进行过滤实验，发现陶瓷膜两端未加交流电时，其通量在2 h内衰减至4%。而加交流电后，其稳定通量可维持在20%左右，表明制备的多孔PZT压电陶瓷膜具有良好的抗污染效果。

关键词: 多孔陶瓷膜, 压电陶瓷, 极化, 原位振动

Abstract:

Porous PZT ceramic membranes were fabricated by dry pressing PZT powder. Study of sintering temperature on mechanical strength, porosity and pure water permeability showed that the membrane obtained at 950℃ sintering temperature had pure water permeability of 850 L·m^-2·h^-1·MPa^-1, average pore size about 300 nm, mechanical strength of 47.8 MPa, and porosity of 34%. Further study of poling temperature and electric voltage on piezoelectric property of porous PZT ceramic membranes, which were extracted and plasma etched after poling, showed that after poling at temperature of 120℃ and electric field of 4 kV·mm^-1, hot alcohol extraction, and 4 min plasma etching, the porous PZT ceramic membranes could create a resonance signal with an amplitude of 34.8 mV when applied to 20 V of an alternating current (AC). Filtration study of the membrane in wastewater oil emulsion with particles of size about 600nm showed that flux decreased to 4% within 2 h without electric field whereas the flux was stabilized at 20% with AC, which indicated the porous PZT membrane had an excellent anti-fouling performance.

Key words: porous ceramic membrane, PZT ceramic, poling, in-situ vibration

中图分类号:

TQ174

毛恒洋, 邱鸣慧, 范益群. 多孔PZT压电陶瓷膜的制备及其抗污染性能[J]. 化工学报, 2017, 68(3): 1224-1230.

MAO Hengyang, QIU Minghui, FAN Yiqun. Porous PZT ceramic membranes and their anti-fouling performance[J]. CIESC Journal, 2017, 68(3): 1224-1230.

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多孔PZT压电陶瓷膜的制备及其抗污染性能

Porous PZT ceramic membranes and their anti-fouling performance

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