Porous PZT ceramic membranes and their anti-fouling performance

MAO Hengyang; QIU Minghui; FAN Yiqun

doi:10.11949/j.issn.0438-1157.20160994

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Porous PZT ceramic membranes and their anti-fouling performance

更新时间：2025-12-10

- Porous PZT ceramic membranes and their anti-fouling performance
- CIESC Journal Issue 3, Pages: 1224-1230(2017)
- 作者机构：
  
  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
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20160994
  CLC： Q174
- Online First：05 March 2017，
  
  Published：05 March 2017
- 稿件说明：
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MAO Hengyang, QIU Minghui, FAN Yiqun. Porous PZT ceramic membranes and their anti-fouling performance[J]. CIESC Journal, 2017, (3): 1224-1230.
DOI：

MAO Hengyang, QIU Minghui, FAN Yiqun. Porous PZT ceramic membranes and their anti-fouling performance[J]. CIESC Journal, 2017, (3): 1224-1230. DOI： 10.11949/j.issn.0438-1157.20160994.

摘要

以 PbZrxTi1-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。

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.

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