Fabrication of intra porous PVDF fibers and their applications for heavy metal removal,oil absorption and piezoelectric sensors  

作　　者：Gajula Prasad Xiongwei Lin Junwei Liang Yingbang Yao Tao Tao Bo Liang Sheng-Guo Lu 

机构地区：[1]Guangdong Provincial Research Center on Smart Materials and Energy Conversion Devices,Guangdong Provincial Key Laboratory on the Functional Soft Condensed Matter,School of Materials and Energy,Guangdong University of Technology,Guangzhou,510006,China [2]Dongguan South China Design Innovation Institute,Building D-1,University Innovation City Area,Songshan Lake,Dongguan,523808,China

出　　处：《Journal of Materiomics》2023年第1期174-182,共9页无机材料学学报（英文）

基　　金：This work was supported by the Natural Science Foundation of China(Grant No.51372042,51872053);Guangdong Provincial Natural Science Foundation(2015A030308004);the NSFCGuangdong Joint Fund(Grant No.U1501246);the Dongguan City Frontier Research Project(2019622101006)and the Advanced Energy Science and Technology Guangdong Provincial Laboratory Foshan Branch-Foshan Xianhu Laboratory Open Fund-Key Project(Grant No.XHT2020-011).

摘　　要：Intra porous fibrous membranes have enhanced metal ionic adsorption and oil separation abilities than those of intra nonporous fibrous membrane.In this paper,we prepared highly intra porous fibrous poly(vinylidene fluoride)(PVDF)membranes using an innovated water-mediated electrospinning approach.FTIR-ATR and XRD techniques confirmed the conversion of non-polarα-phase to polarβ-phase in electrospun membranes.The porous fibrous membrane M–16 had adsorbed oil almost 120%and metal adsorption around 15%,12%,5%,13%respectively for Pb^(2+),Cd^(2+),Cu^(2+)and Zn^(2+),which are larger than the counterpart of nonporous M–18.The nonporous fibrous membranes have better peak to peak output voltage(Vp-Vp)2 to 3 times than the porous fibrous membranes(M–16).The results show apparent potential applications in wastewater/oil spill treatment as well as piezoelectric sensors.

关 键 词：poly(vinylidene fluoride) Porous fibrous membrane Metal removal Oil absorption and peak to peak output voltage 

分 类 号：TB33[一般工业技术—材料科学与工程]