Nanofiltration Membranes with Octopus Arm-Sucker Surface Morphology: Filtration Performance and Mechanism Investigation

2021 ◽  
Author(s):  
Zihui Wang ◽  
Xuewu Zhu ◽  
Xiaoxiang Cheng ◽  
Langming Bai ◽  
Xinsheng Luo ◽  
...  
Keyword(s):  
Surface Morphology ◽  
Nanofiltration Membranes ◽  
Filtration Performance ◽  
Performance And Mechanism

Influence of Membrane Structure and Chemical Characteristics on Separation and Fouling of Nanofiltration Membranes

2013 ◽  
Vol 864-867 ◽  
pp. 394-398
Author(s):  
Li Qing Zhang ◽  
Gang Zhang
Keyword(s):  
Surface Morphology ◽  
Membrane Fouling ◽  
Membrane Structure ◽  
Membrane Surface ◽  
Chemical Characteristics ◽  
Surface Chemical ◽  
Nanofiltration Membranes ◽  
Factors Affecting ◽  
Comprehensive Literature Review ◽  
Physical Chemical

Nanofiltration membranes act an important role in the advanced water treatment as well as waste water reclamation and other industrial separations. Therefore, an understanding of the factors affecting NF separation and membrane fouling in high-pressure membrane systems is needed. Recent studies have shown that membrane surface morphology and structure as well as surface chemical characteristics influence permeability, rejection, and fouling behavior of nanofiltration (NF) membranes. A comprehensive literature review is reported, targeting the physical-chemical characteristics of NF membrane affecting separation and fouling, including pore size, porosity, surface morphology (measured as roughness), surface charge, and hydrophobicity/ hydrophilicity.

Influence of polyvinyl alcohol on the surface morphology, separation and anti-fouling performance of the composite polyamide nanofiltration membranes

2011 ◽  
Vol 367 (1-2) ◽  
pp. 158-165 ◽  
Author(s):  
Quanfu An ◽  
Feng Li ◽  
Yanli Ji ◽  
Huanlin Chen
Keyword(s):  
Surface Morphology ◽  
Polyvinyl Alcohol ◽  
Nanofiltration Membranes

Effects of surface morphology of electrospun polystyrene fiber on its air filtration performance

2020 ◽  
pp. 152808372090946 ◽  
Author(s):  
Yuansheng Zheng ◽  
Xueqin Li ◽  
Binjie Xin ◽  
Na Meng ◽  
Xiaowei Helian
Keyword(s):  
Surface Morphology ◽  
Air Filtration ◽  
Filtration Performance

scholarly journals Micro-fluid through aramid/cellulose nanocomposite membranes and its filtration efficiency

2018 ◽  
Vol 22 (4) ◽  
pp. 1691-1697
Author(s):  
Kang Liu ◽  
Qi Zou ◽  
Zhongwen Ling ◽  
Yuqing Liu ◽  
Jinyou Lin
Keyword(s):  
Surface Morphology ◽  
Cellulose Nanofibers ◽  
Filtration Efficiency ◽  
Layer By Layer ◽  
Nanocomposite Membranes ◽  
Micro Scale ◽  
Filtration Performance ◽  
Layer Technique ◽  
Fluid Properties ◽  
Layer By Layer Technique

The paper concerns micro scale flow in a membrane consisted of aramid nanofibers and cellulose nanofibers via layer-by-layer technique. Surface morphology, surface wettability, and filtration performance are experimentally studied to elucidate the basic micro-fluid properties. The effect of the thickness on filtration efficiency is theoretically analyzed, and the paper concludes that the membrane is extremely effect to remove nanoparticles.

Degradation of Polyamide Nanofiltration Membranes by Bromine: Changes of Physiochemical Properties and Filtration Performance

2021 ◽  
Author(s):  
Huihui Zhao ◽  
Linyan Yang ◽  
Xueming Chen ◽  
Mei Sheng ◽  
Guomin Cao ◽  
...  
Keyword(s):  
Nanofiltration Membranes ◽  
Physiochemical Properties ◽  
Filtration Performance

9-Substituted acridines as effective corrosion inhibitors for mild steel: electrochemical, surface morphology, and computational studies

2020 ◽  
Vol 44 (16) ◽  
pp. 6464-6474 ◽  
Author(s):  
Weiwei Zhang ◽  
Ying Liu ◽  
Yinlin Zhang ◽  
Li-Juan Wang ◽  
Yan-Chao Wu ◽  
...  
Keyword(s):  
Hydrochloric Acid ◽  
Surface Morphology ◽  
Mild Steel ◽  
Corrosion Inhibitors ◽  
Computational Studies ◽  
Inhibition Performance ◽  
First Time ◽  
Performance And Mechanism

The inhibition performance and mechanism of mild steel in hydrochloric acid for 9-substituted acridines were studied for the first time.

scholarly journals Solution Blown Nylon 6 Nanofibrous Membrane as Scaffold for Nanofiltration

Polymers ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 364 ◽  
Author(s):  
Ya Liu ◽  
Gaokai Zhang ◽  
Xupin Zhuang ◽  
Sisi Li ◽  
Lei Shi ◽  
...  
Keyword(s):  
Pore Size ◽  
Hot Pressing ◽  
Porous Scaffold ◽  
Pure Water ◽  
Areal Density ◽  
Nylon 6 ◽  
Nanofibrous Membrane ◽  
Diameter Distribution ◽  
Nanofiltration Membranes ◽  
Filtration Performance

In this work, a nylon 6 nanofibrous membrane was prepared via solution blowing technology and followed hot-press as scaffold for nanofiltration. The structure and properties of the hot-pressed nylon 6 nanofibrous membrane (HNM) were studied the effect of hot-pressing parameters and areal densities. Then an ultra-thin polyamide (PA) active layer was prepared by interfacial polymerization on HNM. The effects of nanofibrous scaffolds on the surface properties of ultra-thin nanofiltration membranes and their filtration performance were studied. Results showed that the nylon 6 nanofibers prepared at a concentration of 15 wt % had a good morphology and diameter distribution and the nanofibers were stacked more tightly and significantly reduced in diameter after hot pressing at 180 °C under the pressure of 15 MPa for 10 s. When the porous scaffold was prepared, HNM with an areal density of 9.4 and 14.1 g/m2 has a better apparent structure, a smaller pore size, a higher porosity and a greater strength. At the same time, different areal densities of HNM have an important influence on the preparation and properties of nanofiltration membranes. With the increase of areal density, the uniformity of HNM increased while their surface roughness and pore size decreased, which is beneficial to the establishment of PA barrier layer. With areal density of 9.4 and 14.1 g/m2, the as-prepared nanofiltration membrane has a smoother surface and more outstanding filtration performance. The pure water flux is 13.1 L m−2 h−1 and the filtration efficiencies for NaCl and Na2SO4 are 81.3% and 85.1%, respectively.

Characterization of nanofiltration membranes by their morphology, charge and filtration performance parameters

Desalination ◽  
2006 ◽  
Vol 200 (1-3) ◽  
pp. 178-180 ◽  
Author(s):  
Gamze Artuğ ◽  
Jobst Hapke
Keyword(s):  
Performance Parameters ◽  
Nanofiltration Membranes ◽  
Filtration Performance
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