Palygorskite/silver nanoparticles incorporated polyamide thin film nanocomposite membranes with enhanced water permeating, antifouling and antimicrobial performance | |
Department | 环境材料与生态化学研究发展中心 |
Wang Wenyi1,2; Li Yiming1; Wang WB (王文波)3; Gao Baoyu2; Wang Zhining2 | |
The second department | 功能复合材料组 |
2019-12 | |
Source Publication | Chemosphere |
Volume | 236Issue:无Pages:124396 |
Abstract | Palygorskite (Pal) is a highly hydrophilic clay mineral with tubular structure and high aspect ratio, which facilitates the attachment of nanoparticles to their surface. It has become a promising new membrane preparation additive due to its lotus root like tubular structure, low price and environmental friendliness. Silver nanoparticles (AgNPs) have excellent antibacterial ability, and their incorporation into the membrane can significantly improve the bacteriostasis of the membrane. Herein, Pal was coated by polydopamine (PDA), which acted as both the adhesive and reducing agent for AgNPs. The incorporation of the Pal/Ag nanocomposite resulted in a thin polyamide (PA) layer with rough surface morphology, which facilitated the improvement of membrane permeability. Furthermore, the Pal's parallel tubes with a 0.37 × 0.63 nm2 cross-sectional area provided nanochannels allowing fast pass through of water molecules. The as-prepared TFN-7.5Pal/Ag membrane exhibited a permeate flux of 39.9 LMH at 16 bar, which was 1.6 times as high as that of the TFC membrane, accompanied with an acceptable NaCl rejection of 98.3%. Besides, antibacterial tests demonstrated that the TFN membrane presented excellent antibacterial performance against Escherichia coli (98.0%). |
Keyword | Palygorskite Ag nanoparticles Thin film nanocomposite Antibacterial Antifouling |
DOI | 10.1016/j.chemosphere.2019.124396 |
URL | 查看原文 |
Indexed By | SCI |
If | 5.108 |
Language | 英语 |
compositor | 第三作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/25446 |
Collection | 环境材料与生态化学研究发展中心 甘肃省黏土矿物应用研究重点实验室 |
Corresponding Author | Li Yiming; Wang Zhining |
Affiliation | 1.Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, Shandong, 266100, PR China 2.School of Environmental Science and Engineering, Shandong Key Laboratory of Water Pollution Control and Resource Reuse, Shandong University, Qingdao, Shandong, 266237, PR China 3.Center for Eco-material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, Gansu, 730000, PR China |
Recommended Citation GB/T 7714 | Wang Wenyi,Li Yiming,Wang WB ,et al. Palygorskite/silver nanoparticles incorporated polyamide thin film nanocomposite membranes with enhanced water permeating, antifouling and antimicrobial performance[J]. Chemosphere,2019,236(无):124396. |
APA | Wang Wenyi,Li Yiming,Wang WB ,Gao Baoyu,&Wang Zhining.(2019).Palygorskite/silver nanoparticles incorporated polyamide thin film nanocomposite membranes with enhanced water permeating, antifouling and antimicrobial performance.Chemosphere,236(无),124396. |
MLA | Wang Wenyi,et al."Palygorskite/silver nanoparticles incorporated polyamide thin film nanocomposite membranes with enhanced water permeating, antifouling and antimicrobial performance".Chemosphere 236.无(2019):124396. |
Files in This Item: | ||||||
File Name/Size | DocType | Version | Access | License | ||
1-s2.0-S004565351931(2307KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment