渗透
材料科学
压电
膜
石英
复合材料
超声波传感器
巴(单位)
化学工程
声学
渗透
遗传学
物理
气象学
工程类
生物
作者
Hengyang Mao,Hongquan Cao,Fan Wan,Wei Li,Yongwei Wu,Xianfu Chen,Minghui Qiu,H. Verweij,Yiqun Fan
标识
DOI:10.1016/j.ceramint.2022.02.204
摘要
Separation membranes that are prepared from piezoelectric ceramics can generate ultrasound on-line to maintain surface cleanliness. Here, a lead-free piezoelectric support is presented consisting of quartz. The Na2O and Al2O3 were employed as sintering aids to improve the mechanical performance of piezoelectric quartz support while avoid the formation of no-piezoelectric cristobalite. A ZrO2-based thin microfiltration membrane layer was applied on the optimized support. The membrane structure, thus obtained had an average pore size and ultrasonic emission of 270 nm and 5.1 mV, respectively. The stationary permeance of the membrane in the treatment of oil-in-water emulsion was 163 L m−2∙h−1∙bar−1 (LMH/bar). With the application of alternating voltages of 60 V and 100 V, the permeance increased to 198 and 225 LMH/bar, respectively, and the oil rejection was maintained above 97%. The in-situ ultrasound directly acted on membrane surface, so it removed more fouling resistance at lower power than the external one.
科研通智能强力驱动
Strongly Powered by AbleSci AI