U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PubAg

Main content area

You searched for: Journal name Journal of membrane science Remove constraint Journal name: Journal of membrane science Publication year rev 7981-2019 Remove constraint Publication year rev: 7981-2019 Source 2019 v.587 Remove constraint Source: 2019 v.587
Start Over

Search

28  Search Results

« Previous | 1 - 20 of 28 |
Number of results to display per page

Search Results

1. Backpulsing technology applied in MF and UF processes for membrane fouling mitigation: A review

Author:
Yinghong Gao; Jie Qin; Zhiwei Wang; Stein W. Østerhus
Source:
Journal of membrane science 2019 v.587 pp. 117136
ISSN:
0376-7388
Subject:
artificial membranes; cleaning; fouling; mathematical models; microfiltration; operating costs; permeability; ultrafiltration
Abstract:
... Membrane cleaning is crucial to maintain the permeability and selectivity of membranes. Physical cleaning can mitigate membrane fouling, lower the frequency of chemical cleaning, thus prolong membrane lifetime, and reduce operational costs. Backpulsing is a promising physical cleaning method, which can effectively mitigate external and non-adhesive fouling and has been used in many industrial fiel ...
DOI:
10.1016/j.memsci.2019.05.060

2. Deep neural networks for modeling fouling growth and flux decline during NF/RO membrane filtration

Author:
Sanghun Park; Sang-Soo Baek; JongCheol Pyo; Yakov Pachepsky; Jongkwan Park; Kyung Hwa Cho
Source:
Journal of membrane science 2019 v.587 pp. 117164
ISSN:
0376-7388
Subject:
artificial membranes; fouling; microfiltration; model validation; nanofiltration; neural networks; reverse osmosis; tomography; water quality
Abstract:
... Mathematical models have been developed to obtain a better understanding of membrane fouling mechanisms. However, those models could not simulate the membrane fouling behaviors accurately because of the large number of fitting parameters related to feed water quality and flow pattern in a membrane filtration system. In this study, we developed a deep neural network (DNN) to model membrane fouling ...
DOI:
10.1016/j.memsci.2019.06.004

3. Dynamic behavior of unsteady-state membrane gas separation: Modelling of a closed-mode operation for a membrane module

Author:
Maxim M. Trubyanov; Sergei Y. Kirillov; Andrey V. Vorotyntsev; Tatyana S. Sazanova; Artem A. Atlaskin; Anton N. Petukhov; Yuri P. Kirillov; Ilya V. Vorotyntsev
Source:
Journal of membrane science 2019 v.587 pp. 117173
ISSN:
0376-7388
Subject:
artificial membranes; carbon dioxide; gas chromatography; mass spectrometry; mathematical models; methane; mixing; monitoring; nitrogen
Abstract:
... Membrane gas separations under unsteady conditions provide various opportunities for enhancement of separation performance, particularly in niche applications. An original model describing the dynamics of a closed-mode operation in a cross-flow membrane module is developed for optimization of a pulsed-retentate separation technique. The closed-mode operation is a key step of a pulsed retentate pro ...
DOI:
10.1016/j.memsci.2019.117173

4. Effect of carboxylic acid crosslinking of cellulose membranes on nanofiltration performance in ethanol and dimethylsulfoxide

Author:
Kübra Konca; P. Zeynep Çulfaz-Emecen
Source:
Journal of membrane science 2019 v.587 pp. 117175
ISSN:
0376-7388
Subject:
acetates; acetone; artificial membranes; carboxylic acids; cellulose; crosslinking; dimethyl sulfoxide; electrostatic interactions; ethanol; gentian violet; leaves; mechanical properties; moieties; nanofiltration; solutes; solvents; sorption
Abstract:
... Cellulose membranes were fabricated via phase inversion using 1-ethyl-3-methylimidazolium acetate as solvent and acetone as volatile cosolvent. 1,2,3,4-butanetetracarboxylic acid was used to partially crosslink the hydroxyl groups of cellulose, thereby changing mechanical properties of the membranes and the interactions with solvents, ethanol and dimethyl sulfoxide, and solutes. Rejection of dyes ...
DOI:
10.1016/j.memsci.2019.117175

5. Effect of ionic liquids (ILs) on MOFs/polymer interfacial enhancement in mixed matrix membranes

Author:
Manh-Tuan Vu; Rijia Lin; Hui Diao; Zhonghua Zhu; Suresh K. Bhatia; Simon Smart
Source:
Journal of membrane science 2019 v.587 pp. 117157
ISSN:
0376-7388
Subject:
adhesion; adsorption; artificial membranes; carbon dioxide; coordination polymers; ionic liquids; methane; nitrogen; scanning electron microscopy
Abstract:
... Strong interfacial interactions between the filler(s) and chosen polymer in mixed matrix membranes (MMMs) is a crucial factor in obtaining high gas separation efficiency. However, it is challenging to obtain excellent filler/polymer contact simply by direct incorporation of micron-sized metal-organic frameworks (MOFs) into a polymer matrix without modification. In this study micron-sized ZIF-67 pa ...
DOI:
10.1016/j.memsci.2019.05.081

6. Effect of surfactant hydrophobicity and charge type on membrane distillation performance

Author:
Yong Zen Tan; Sadiye Velioglu; Le Han; Benson Dannie Joseph; Lekshmi Gopalakrishnan Unnithan; Jia Wei Chew
Source:
Journal of membrane science 2019 v.587 pp. 117168
ISSN:
0376-7388
Subject:
anionic surfactants; artificial membranes; dissolved gases; distillation; heat recovery; hydrophobicity; liquids; molecular dynamics; simulation models; solutes; surface tension; sustainable technology; wastewater
Abstract:
... Membrane distillation (MD) is a promising green technology that can utilize waste heat to concentrate non-volatile solutes, or remove volatiles and dissolved gases from an aqueous feed. The primary reason for the limited commercial implementation of MD is membrane pore-wetting, which deteriorates the separation performance. For oily wastewater, the surfactants are particularly detrimental due to t ...
DOI:
10.1016/j.memsci.2019.117168

7. Energy efficiency of hollow fibre membrane module in the forward osmosis seawater desalination process

Author:
Ali Altaee; Ali Braytee; Graeme J. Millar; Osamah Naji
Source:
Journal of membrane science 2019 v.587 pp. 117165
ISSN:
0376-7388
Subject:
artificial membranes; desalination; energy efficiency; energy requirements; energy use and consumption; osmosis; seawater; sodium chloride
Abstract:
... This study provided new insights regarding the energy efficiency of hollow fibre forward osmosis modules for seawater desalination; and as a consequence an approach was developed to improve the process performance. Previous analysis overlooked the relationship between the energy efficiency and operating modes of the hollow fibre forward osmosis membrane when the process was scaled-up. In this stud ...
DOI:
10.1016/j.memsci.2019.06.005

8. From micro to nano: Polyamide thin film on microfiltration ceramic tubular membranes for nanofiltration

Author:
Jeng Yi Chong; Rong Wang
Source:
Journal of membrane science 2019 v.587 pp. 117161
ISSN:
0376-7388
Subject:
calcium chloride; ceramics; magnesium chloride; magnesium sulfate; mechanical properties; microfiltration; molecular weight; nanofiltration; organochlorine compounds; permeability; piperazine; polyamides; polyethyleneimine; polymerization; porosity; sucrose; temperature; thin film composite membranes; trimesoyl chloride
Abstract:
... Interfacial polymerization is an effective technique to synthesize high performance polyamide thin film membranes. However, it is still very challenging to apply this technique on ceramic hollow fibres or tubular membranes, especially when the substrate pore size is in the microfiltration range. In this study, we demonstrated that thin polyamide layer can be synthesized directly on microfiltration ...
DOI:
10.1016/j.memsci.2019.06.001

9. Graphene oxide functionalized with zwitterionic copolymers as selective layers in hybrid membranes with high pervaporation performance

Author:
Micah Belle Marie Yap Ang; Marwin R. Gallardo; Gian Vincent C. Dizon; Manuel Reyes De Guzman; Lemmuel L. Tayo; Shu-Hsien Huang; Cheng-Lee Lai; Hui-An Tsai; Wei-Song Hung; Chien-Chieh Hu; Yung Chang; Kueir-Rarn Lee
Source:
Journal of membrane science 2019 v.587 pp. 117188
ISSN:
0376-7388
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; artificial membranes; chemical bonding; composite polymers; contact angle; filtration; graphene oxide; hydrophilicity; isopropyl alcohol; permeability; pervaporation; scanning electron microscopy; zwitterions
Abstract:
... Zwitterionic copolymers, poly(glycidyl methacrylate-sulfobetaine methacrylate) [poly(GMA-SBMA)], was incorporated into graphene oxide (GO) to form a GO–poly(GMA-SBMA) framework. This compound was then deposited onto a polysulfone support through pressure-assisted filtration to fabricate hybrid membranes. Optimum fabrication conditions were determined by varying the poly(GMA-SBMA) loading. Attenuat ...
DOI:
10.1016/j.memsci.2019.117188

10. High electrochemical performance poly(ethylene oxide)/2,4-toluene diisocyante/polyethylene glycol as electrolytes for all-solid-state lithium batteries

Author:
Chao Li; Ying Huang; Xuansheng Feng; Zheng Zhang; Panbo Liu
Source:
Journal of membrane science 2019 v.587 pp. 117179
ISSN:
0376-7388
Subject:
artificial membranes; cathodes; composite polymers; electrochemistry; electrolytes; foams; lithium batteries; polyethylene glycol; thermal stability
Abstract:
... Polymer electrolytes are considered as the most commercially valuable solid electrolytes due to their flexibility and electrochemical stability. In this work, we prepared solid polymer electrolytes (SPEs) based on poly(ethylene oxide) (PEO) and a liner amorphous copolymer 2,4 -toluene diisocyante/polyethylene glycol (TDI/PEG). The optimal electrolyte PEO/TDI/PEG(PTP) with 20% TDI-PEG content prese ...
DOI:
10.1016/j.memsci.2019.117179

11. Microbial biofilm communities on Reverse Osmosis membranes in whey water processing before and after cleaning

Author:
Eirini Vitzilaiou; Iuliana Madalina Stoica; Susanne Knøchel
Source:
Journal of membrane science 2019 v.587 pp. 117174
ISSN:
0376-7388
Subject:
Gram-negative bacteria; artificial membranes; biofilm; biofouling; cleaning in place; confocal laser scanning microscopy; dairy industry; food industry; hyphae; internal transcribed spacers; microfiltration; plate count; reverse osmosis; ribosomal RNA; sequence analysis; water treatment; whey; yeasts
Abstract:
... The need for recovering valuable compounds and water from side streams has increased the use of Reverse Osmosis (RO) membrane filtration in the food industry. RO membranes, however, are highly susceptible to biofilm formation, which may decrease performance and increase industrial costs. In order to identify and characterize the biofilm forming communities, industrial RO membranes from whey water ...
DOI:
10.1016/j.memsci.2019.117174

12. New insights into the relationship between draw solution chemistry and trace organic rejection by forward osmosis

Author:
Lei Zheng; William E. Price; James McDonald; Stuart J. Khan; Takahiro Fujioka; Long D. Nghiem
Source:
Journal of membrane science 2019 v.587 pp. 117184
ISSN:
0376-7388
Subject:
artificial membranes; electrostatic interactions; fouling; ionic strength; lithium; molecular weight; osmosis; pH; sodium; solutes
Abstract:
... This study elucidates the impact of draw solution chemistry (in terms of pH and draw solute species) and membrane fouling on water flux and the rejection of trace organic contaminants by forward osmosis. The results show that draw solution chemistry could induce a notable impact on both water flux and TrOCs rejection. In addition, the impact was further influenced by membrane fouling. The reverse ...
DOI:
10.1016/j.memsci.2019.117184

13. Single-step coating of polyethylenimine on gradient nanoporous phenolics for tight membranes with ultrahigh permeance

Author:
Leiming Guo; Yazhi Yang; Yong Wang
Source:
Journal of membrane science 2019 v.587 pp. 117172
ISSN:
0376-7388
Subject:
artificial membranes; coatings; dyes; nanopores; phenolic compounds; polyethyleneimine; ultrafiltration
Abstract:
... Ultrafiltration membranes with relatively small pores are highly expected in various separation cases. As a flexible manner to efficiently tighten the pores, post modification provides a robust platform for preparing the desired membranes. However, the endeavor to pursue high permselectivity of the membranes has been made by paying close attention to the modification layers while the effects of th ...
DOI:
10.1016/j.memsci.2019.117172

14. Stainless-steel-net-supported superhydrophobic COF coating for oil/water separation

Author:
Yunzhe Jiang; Chuanyao Liu; Yanhong Li; Aisheng Huang
Source:
Journal of membrane science 2019 v.587 pp. 117177
ISSN:
0376-7388
Subject:
artificial membranes; coatings; contact angle; crystals; gravity; hydrophobicity; oils; stainless steel
Abstract:
... This work reports the preparation and post-synthetic modification of COF named BTADHBD with perfluorooctyltriethoxysilane (POTS) to obtain a superhydrophobic COF coating. Through post-synthetic modification, the water contact angle (CA) of BTADHBD is increased from 83.7° to 153.2° without change of crystals morphology and structure. BTADHBD COF coating was prepared on the stainless steel net (SSN) ...
DOI:
10.1016/j.memsci.2019.117177

15. Thermo- and pH-responsive graphene oxide membranes with tunable nanochannels for water gating and permeability of small molecules

Author:
Huawen Liu; Jiajie Zhu; Liang Hao; Yuliang Jiang; Bart van der Bruggen; Arcadio Sotto; Congjie Gao; Jiangnan Shen
Source:
Journal of membrane science 2019 v.587 pp. 117163
ISSN:
0376-7388
Subject:
asymmetric membranes; graphene oxide; hydrogels; microgels; nanopores; pH; permeability; temperature
Abstract:
... Smart gating membranes with self-regulating nanopores/nanochannels are highly desirable for water gating and separation of small molecules. Based on the nanochannels in the graphene oxide (GO) membrane, we designed positive thermo- and negative pH-responsive GO/hydrogel composite membranes (GOGMs) through a simple filtration-accumulation of GO sheets and hydrogels. The shape-flabby hydrogels can b ...
DOI:
10.1016/j.memsci.2019.06.003

16. UV-crosslinked poly(PEGMA-co-MMA-co-BPMA) membranes: Synthesis, characterization, and CO2/N2 and CO2/CO separation

Author:
Chae-Young Park; Bong-Jun Chang; Jeong-Hoon Kim; Young Moo Lee
Source:
Journal of membrane science 2019 v.587 pp. 117167
ISSN:
0376-7388
Subject:
artificial membranes; benzophenones; carbon; carbon dioxide; carbon monoxide; crosslinking; free radicals; methyl ethers; moieties; nitrogen; permeability; photochemical reactions; polyethylene glycol; polymerization; solubility
Abstract:
... A series of CO2-philic terpolymers were prepared by free radical polymerization using three monomers, poly(ethylene glycol) methyl ether methacrylate (PEGMA), methyl methacrylate (MMA), and 4-hydroxybenzophenone (BPMA), to develop CO2/N2 and CO2/CO separation membranes. The terpolymers, poly(PEGMA-co-MMA-co-BPMA) (PMB), were cast into thin precursor films, which were then crosslinked by a UV-induc ...
DOI:
10.1016/j.memsci.2019.06.007

17. A highly permeable loose nanofiltration membrane prepared via layer assembled in-situ mineralization

Author:
Jinglong Zhang; Libin Yang; Zhan Wang; Shigang Yang; Ping Li; Peng Song; Min Ban
Source:
Journal of membrane science 2019 v.587 pp. 117159
ISSN:
0376-7388
Subject:
aqueous solutions; artificial membranes; calcium carbonate; dyeing; dyes; humic acids; hydrophilicity; mineralization; nanofiltration; nanoparticles; permeability; sodium chloride; wastewater treatment
Abstract:
... Nanofiltration membrane with high water permeability and anti-fouling nature is particularly needed to be explored in dyeing wastewater treatment. Herein, a hydrophilic calcium carbonate/polyethyleneimine-gallic acid (CaCO3/PEI-GA) loose NF membrane was prepared via a layer assembled in-situ mineralization (LAIM) strategy. This strategy endowed the membrane with the following advantages: the forma ...
DOI:
10.1016/j.memsci.2019.05.083

18. An interface-strengthened cross-linked graphene oxide/Nafion212 composite membrane for vanadium flow batteries

Author:
Daishuang Zhang; Qian Wang; Sangshan Peng; Xiaoming Yan; Xuemei Wu; Gaohong He
Source:
Journal of membrane science 2019 v.587 pp. 117189
ISSN:
0376-7388
Subject:
asymmetric membranes; batteries; crosslinking; electrochemistry; energy efficiency; graphene; permeability; sol-gel processing; vanadium
Abstract:
... An interface-strengthened cross-linked graphene oxide/Nafion212 (CLGO/Nafion212) composite membrane was successfully fabricated and served as ion conducting membrane for vanadium flow batteries (VFBs). Firstly, the surface of Nafion212 was endowed with plenty of amino groups via in situ sol-gel chemistry approach of 3-aminopropyltriethoxysilane. Subsequently, a thin layer of m-xylylenediamino-cros ...
DOI:
10.1016/j.memsci.2019.117189

19. Double network anion exchange membrane with excellent flexibility and stability

Author:
Xinming Du; Zhe Wang; Hongyu Zhang; Wenchang Liu; Zhaoyu Chen; Jingmei Xu
Source:
Journal of membrane science 2019 v.587 pp. 117178
ISSN:
0376-7388
Subject:
Fourier transform infrared spectroscopy; Lewis bases; anion-exchange membranes; asymmetric membranes; crosslinking; hydrophilicity; hydrophobicity; scanning electron microscopes; scanning electron microscopy; sodium hydroxide; transmission electron microscopy; triazoles; water uptake
Abstract:
... A double-network anion exchange membrane (TA/AT-PEK/PVA-x) was prepared by Br-PEK and PVA, 3-amino-1,2,4 triazole forms a cross-linking structure with PVA under the action of 1,4-phthalaldehyde and then triazole can be linked with Br-PEK. The structure of membranes was verified by FT-IR. The composite membrane is uniform and smooth can be seen from the scanning electron microscope (SEM) and exhibi ...
DOI:
10.1016/j.memsci.2019.117178

20. Effect of HIx solution concentration on ion-exchange membrane performance in electro-electrodialysis

Author:
N. Tanaka; T. Yamaki; M. Asano; T. Terai
Source:
Journal of membrane science 2019 v.587 pp. 117171
ISSN:
0376-7388
Subject:
diffusivity; hydrogen; hydrogen production; ion-exchange membranes; models; protons
Abstract:
... Electro-electrodialysis (EED) has been applied to the thermochemical water-splitting iodine-sulfur process for hydrogen production to enhance the hydrogen iodide (HI) component in the HI–I2–H2O mixture (HIx solution). In this work, the HIx solution concentration dependence of conductivity and transport number as the membrane-performance indexes of Nafion 212 and a styrene-grafted poly(ethylene-co- ...
DOI:
10.1016/j.memsci.2019.117171