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Palygorskite/silver nanoparticles incorporated polyamide thin film nanocomposite membranes with enhanced water permeating, antifouling and antimicrobial performance.
Chemosphere. 2019 Dec; 236:124396.C

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%).

Authors+Show Affiliations

Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, Shandong, 266100, PR China; School of Environmental Science and Engineering, Shandong Key Laboratory of Water Pollution Control and Resource Reuse, Shandong University, Qingdao, Shandong, 266237, PR China.Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, Shandong, 266100, PR China. Electronic address: liym@ouc.edu.cn.Center for Eco-material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, Gansu, 730000, PR China.School of Environmental Science and Engineering, Shandong Key Laboratory of Water Pollution Control and Resource Reuse, Shandong University, Qingdao, Shandong, 266237, PR China.School of Environmental Science and Engineering, Shandong Key Laboratory of Water Pollution Control and Resource Reuse, Shandong University, Qingdao, Shandong, 266237, PR China. Electronic address: wangzhn@sdu.edu.cn.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31545199

Citation

Wang, Wenyi, et al. "Palygorskite/silver Nanoparticles Incorporated Polyamide Thin Film Nanocomposite Membranes With Enhanced Water Permeating, Antifouling and Antimicrobial Performance." Chemosphere, vol. 236, 2019, p. 124396.
Wang W, Li Y, Wang W, et al. Palygorskite/silver nanoparticles incorporated polyamide thin film nanocomposite membranes with enhanced water permeating, antifouling and antimicrobial performance. Chemosphere. 2019;236:124396.
Wang, W., Li, Y., Wang, W., Gao, B., & Wang, Z. (2019). Palygorskite/silver nanoparticles incorporated polyamide thin film nanocomposite membranes with enhanced water permeating, antifouling and antimicrobial performance. Chemosphere, 236, 124396. https://doi.org/10.1016/j.chemosphere.2019.124396
Wang W, et al. Palygorskite/silver Nanoparticles Incorporated Polyamide Thin Film Nanocomposite Membranes With Enhanced Water Permeating, Antifouling and Antimicrobial Performance. Chemosphere. 2019;236:124396. PubMed PMID: 31545199.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Palygorskite/silver nanoparticles incorporated polyamide thin film nanocomposite membranes with enhanced water permeating, antifouling and antimicrobial performance. AU - Wang,Wenyi, AU - Li,Yiming, AU - Wang,Wenbo, AU - Gao,Baoyu, AU - Wang,Zhining, Y1 - 2019/07/19/ PY - 2019/06/09/received PY - 2019/07/14/revised PY - 2019/07/17/accepted PY - 2019/9/24/pubmed PY - 2019/12/25/medline PY - 2019/9/24/entrez KW - Ag nanoparticles KW - Antibacterial KW - Antifouling KW - Palygorskite KW - Thin film nanocomposite SP - 124396 EP - 124396 JF - Chemosphere JO - Chemosphere VL - 236 N2 - 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%). SN - 1879-1298 UR - https://www.unboundmedicine.com/medline/citation/31545199/Palygorskite/silver_nanoparticles_incorporated_polyamide_thin_film_nanocomposite_membranes_with_enhanced_water_permeating,_antifouling_and_antimicrobial_performance L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(19)31617-0 DB - PRIME DP - Unbound Medicine ER -