Article
Engineering, Chemical
Nan Li, Tian-Jiao Lou, Wenyi Wang, Min Li, Zhi-Xian Yang, Ru-Yu Chang, Jianxin Li, Hong-Zhang Geng
Summary: The appearance of composite membranes offers a new approach for reducing membrane fouling. In this study, polyaniline (PANI) and Ti3C2Tx (MXene) were combined using electrostatic assembly to create a conductive network and adjust the distance between MXene layers. The resulting MXene-PANI/PES membrane exhibited significantly improved permeation flux and retention rates compared to a regular PES membrane, while also demonstrating enhanced conductivity and anti-fouling capabilities.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Nurul Widiastuti, Romaya Sitha Silitonga, Hadi Nugraha Cipta Dharma, Juhana Jaafar, Alvin Rahmad Widyanto, Mochammad Purwanto
Summary: Crude palm oil is an important commodity in the economic and social development of producer nations, but the presence of free fatty acids decreases its quality. Coating the surface of PVDF hollow fiber membrane with chitosan and glutaraldehyde enhances the hydrophilicity, porosity, and roughness of the membrane, resulting in a maximum FFA rejection rate of 14.99% compared to the uncoated membrane.
Article
Engineering, Chemical
Dalia Muthana Al-Ani, Fads H. Al-Ani, Qusay F. Alsalhy, Salah S. Ibrahim
Summary: Membrane engineering is classified as an eco-friendly cleaning technology, especially in wastewater treatment. This study proposes a new method to enhance membrane performance by blending PES with PPSU for ultrafiltration membranes. The addition of PES significantly improves the membrane properties, leading to high dye removal rates above 99.65%.
CHEMICAL ENGINEERING COMMUNICATIONS
(2021)
Article
Polymer Science
Chao-Chuan Ho, Jenn Fang Su, Liao-Ping Cheng
Summary: NIPS separation process was carried out at 40 degrees C with water/GBL/PVP/PES system. Water was added in different amounts to modify the porous structure and enhance membrane permeability. The fabricated membranes showed high pure water flux and rejection capacity against bovine serum albumin molecules.
Article
Engineering, Environmental
Yinghua Li, Yiyan Wang, Mengxi Liao, Fei Su, Yue Zhang, Linlin Peng
Summary: The electroflocculation/oxidation pre-treatment method can effectively reduce membrane pollution caused by natural organic matter and improve membrane permeation flux. This pre-treatment process enhances the irreversible fouling resistance of membrane pores.
WATER SCIENCE AND TECHNOLOGY
(2022)
Article
Engineering, Environmental
Akmal Suhaimi, Ebrahim Mahmoudi, Rhonira Latif, Kim S. Siow, M. Hazani M. Zaid, Abdul Wahab Mohammad, M. F. Mohd Razip Wee
Summary: Plasma-based surface modification using organosilicon precursor TEOS on PES membrane resulted in a superhydrophilic surface with improved water flux and anti-fouling properties, making it effective for trapping organic dyes.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Nanoscience & Nanotechnology
Yu-Heng Cheng, Alon Y. Kirschner, Chia-Chih Chang, Zhengwang He, Mostafa Nassr, Todd Emrick, Benny D. Freeman
Summary: Membrane fouling is a significant challenge in membrane separations, and hydrophilic membrane surface modification can enhance fouling resistance. This study presents a new hydrophilic membrane coating based on 1,4-benzoquinone and polyetheramines for modifying polysulfone ultrafiltration membranes. The results show that the modified membranes exhibit comparable fouling resistance to polydopamine-modified membranes, indicating the potential of these coatings in mitigating fouling.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Ayyaz Shahbaz Butt, Asif Ali Qaiser, Nida Abid, Umer Mahmood
Summary: Novel polyaniline-layered nanofiltration membranes were prepared, and the impact of polyaniline deposition time on membrane properties was investigated. The membranes exhibited good rejection and flux performance, making them promising for various applications.
Article
Biochemistry & Molecular Biology
Mahdie Safarpour, Shahla Hosseinpour, Mahsa Haddad Irani-nezhad, Yasin Orooji, Alireza Khataee
Summary: In this research, the Ti2SnC MAX phase was synthesized and used as a nano-additive to improve the performance of polyethersulfone membranes. The addition of Ti2SnC MAX phase increased membrane hydrophilicity and pure water flux, and improved the separation efficiency of the membranes.
Article
Materials Science, Ceramics
Jing Li, Ning Wang, Yanhong Zhuang, An Xue, Lu Chen, Yang Li
Summary: In this study, mesoporous gamma-Al2O3 ultrafiltration membranes were conveniently and quickly prepared using pseudo-boehmite powder as a precursor. The viscosity and particle size of the AlOOH sols could be controlled by changing the H+/Al3+ molar ratio, and the pore size of the membranes could be varied by adjusting the PVA content in the coating slurry. Additionally, the gamma-Al2O3 ultrafiltration membranes derived from pseudo-boehmite exhibited high permeability.
CERAMICS INTERNATIONAL
(2023)
Article
Polymer Science
Amos Adeniyi, Gerald Oke Odo, Danae Gonzalez-Ortiz, Celine Pochat-Bohatier, Sandrine Mbakop, Maurice Stephen Onyango
Summary: This study demonstrated the potential of cellulose nanocrystals (CNC) as a substitute for polyethylene glycol (PEG) in ultrafiltration membrane fabrication. Two sets of modified membranes were prepared using different additives and characterized for their performance in treating synthetic and real restaurant wastewater. The membranes prepared with CNC showed improved hydrophilicity, morphology, pore structure, and roughness compared to the membranes prepared with PEG. Additionally, the CNC membrane exhibited higher turbidity and COD removal when treating raw restaurant water.
Article
Engineering, Chemical
Duc Hoa Tran, Mathias Ulbricht
Summary: Research and development towards sustainable chemistry involves the development of new materials and exploration of new fabrication methods. In this study, composite membranes made from biodegradable cellulose were fabricated using a simple and scalable process. The use of dimethylsulfoxide as impregnation liquid improved the membrane separation performance and lamination strength. The thickness of the barrier layer could be reduced to a few micrometers, and the membrane performance could be adjusted by varying the cellulose concentration and co-solvent fraction. The cellulose-cellulose composite membranes showed potential as a sustainable alternative material for various separations.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Chemical
Wenjian Yang, Qing Guo, Dong Duan, Tianyu Wang, Jingxia Liu, Xing Du, Yanling Liu, Shengji Xia
Summary: The pilot-scale test on a water treatment process using flat-sheet ceramic membranes in the treatment of surface water with high turbidity and high content of organic matters showed promising results in terms of purification efficiency and membrane fouling control. The study found that membrane fouling rate was largely dependent on permeate flux, and high-intensity short-time backwashing mode was more efficient in preventing fouling.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Environmental
Aleksandra Chuda, Krzysztof Zieminski
Summary: This study investigates the ultrafiltration performance of sugar beet pulp digestate with different pre-treatment strategies. High ultrafiltration performance was obtained using centrifugation and polyacrylamide flocculation as digestate pre-treatment. The results indicate the possibility of filtering the liquid fraction obtained by centrifugation, coagulation or flocculation of the digestate, and using natural auxiliary agents during its pre-treatment.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Biochemistry & Molecular Biology
Caide Yue, Hongmin Dong, Yongxing Chen, Bin Shang, Yi Wang, Shunli Wang, Zhiping Zhu
Summary: The study found that increasing temperature and cross-flow velocity can improve UF separation efficiency, while the flux increase slows down after a certain transmembrane pressure. PES membranes with different pore sizes showed varying rates of flux increase under pressure changes, and using NaOH and NaClO for cleaning resulted in higher flux recovery rates.
Article
Engineering, Chemical
Jiawei Hou, Shixuan Guo, Nigel Graham, Wenzheng Yu, Kening Sun, Ting Liu
Summary: A novel 2D composite membrane based on r-HGO and MXene materials was developed, demonstrating exceptional performance for water treatment in terms of permeability, pollutant rejection, and physical stability. The optimization of preparation conditions and material proportions can result in high water flux and efficient removal of pollutants.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Retraction
Engineering, Chemical
Chang Liu, Jinghong Liu, Liang Zhu, Shanfu Tang, Huixin Xiong
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Rui Gao, Caihong Liu, Andreia F. Faria, Qiang He, Chun Yang, Jun Ma
Summary: A novel copolymer architecture has been developed to address biofouling concerns in thin-film composite (TFC) membranes by integrating anti-fouling, bactericidal, and fouling-release functions. The multifunctional membrane demonstrates promising anti-adhesive properties, self-cleaning ability, and high flux recovery rate.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Alexander T. Bridge, Noah P. Wamble, Matthew S. Santoso, Joan F. Brennecke, Benny D. Freeman
Summary: This study demonstrates the reproducible preparation of high-flux defect-free asymmetric gas separation membranes using Cyrene(TM) as a majority dope formulation component. By adjusting the volume ratios of Cyrene(TM) and THF, as well as the concentrations of Matrimid(R) and the dry step time, optimal membrane performance is achieved.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Alessandra Imbrogno, Han Ya Lin, Babak Minofar, Andrea Iris Schaefer
Summary: In this study, a composite nanofiber membrane containing cross-linked beta-cyclodextrin-epichlorohydrin was prepared and evaluated for the removal of steroid hormones. The results showed that the membrane had high adsorption capacity and the ability to form a specific inclusion complex interaction with the hormones, indicating its potential application in hormone removal.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Bora Shin, Jaewon Shin, Yanuar Chandra Wirasembada, Ki Young Park, Jinwoo Cho
Summary: This study develops a mathematical model to estimate the initial flux of volatile fatty acids in the direct contact membrane distillation process. It identifies the parameters affecting the flux and their relationship with pH.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Yi-Jui Yeh, Jr Rong Liou, Wei Lin, Kuo-Lun Tung, Wei-Hung Chiang
Summary: This study demonstrates an effective plasma engineering method to create nitrogen-doped graphene quantum dot (NGQD)-inorganic nanocomposites for tunable molecular separation. The composite materials show high separation efficiency and controllable nanopore structures, making them potentially valuable for various applications.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Horacio Lopez-Marques, Kristofer L. Gleason, Manuel Aguilar-Vega, Rita Sulub-Sulub, J. Ehren Eichler, Hyeonji Oh, C. Buddie Mullins, Benny D. Freeman, Manish Kumar
Summary: In this study, water transport properties in Carbon Molecular Sieve (CMS) membranes were investigated. It was found that membranes synthesized at different pyrolysis temperatures exhibited varying water permeabilities. Compared to other polymeric materials, CMS membranes showed high water permeability, indicating potential for dehydration applications.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Dmitry A. Alentiev, Roman Yu. Nikiforov, Marina A. Rudakova, Danil P. Zarezin, Maxim A. Topchiy, Andrey F. Asachenko, Nikolay A. Belov, Maxim Bermeshev
Summary: A series of new norbornene-type monomers containing linear and branched substituents were synthesized, and robust thin membranes were prepared by vinyl-addition polymerization. Gas separation performance for the synthesized polymers was evaluated, and the structure of substituent side chains was found to significantly affect gas permeability and CO2 facilitated transport.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Lei Yan, Qi Zhang, Ze Zhang, Gui-Jie Li, Yi Jin, Xin-Lin Zhang, Yan-Yun Sun
Summary: In this study, a continuous, stable and fast ion transport channel was established through in-situ guided cross-linking of zinc alginate hydrogels on a porous membrane, overcoming the negative pore effect and effectively inhibiting the dendrite growth of zinc anodes and interfacial side reactions.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Yuqing Zhang, Ailing Zhang, Huiyang He, Yuting Fan, Yongjiang Li, Song Wang, Sanxi Li
Summary: The Langmuir-Blodgett self-assembly process is used to create an ordered SPEEK membrane, which enhances the proton conductivity by three times compared to conventional solution casting method.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Hasan Ismaeel, David Gibson, Eleonora Ricci, Maria Grazia De Angelis
Summary: In this study, a machine learning-based group contribution method (ML-GC) was developed to predict pure polymer parameters and successfully applied to predict gas solubility and gas solubility isotherms in glassy polymeric membranes. The model showed satisfactory performance on a small dataset, but has the potential to provide more accurate predictions for a wider range of polymers as more data becomes available.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Yi Ji, Yu Sun, Huilin Li, Qiang Fu, Yan Zhang
Summary: Previous studies have shown that vibration- or rotation-based techniques can effectively mitigate fouling during membrane filtration. However, it is difficult to incorporate these techniques with spiral wound modules (SWMs) widely used in water and wastewater treatment. This study developed a prototype membrane system to accommodate angular vibrations with a modified SWM, and experimental results showed that applying angular vibrations can effectively control algal fouling in an SWM with lower energy consumption compared to traditional methods.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Lakshmeesha Upadhayaya, Abaynesh Yihdego Gebreyohannes, Muhammad Wakil Shahzad, Usman T. Syed, Sandra L. Aristizabal, Radoslaw Gorecki, Suzana P. Nunes
Summary: Increasing temperatures worldwide pose a significant health risk, exacerbated by high humidity. Conventional air conditioners contribute heavily to carbon dioxide emissions, with dehumidification being a major factor. Membrane-based dehumidification system offers energy efficiency and non-toxic water vapor removal. This study demonstrates a membrane dehumidification system with polymeric hollow fibers coated with a green polyphenol coating, showing remarkable water vapor transport rate and selectivity. Long-term testing reveals minimal decline in vapor transport and a 4-5 times higher coefficient of performance (COP) compared to conventional dehumidifiers, making it a highly competitive, energy-saving device with reduced emissions and a smaller footprint.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Zhengzhong Zhou, Xue Zhu, Yi Yuan, Shaoqiang Wang, Xiaoshan Meng, Taoli Huhe, Qian Wang
Summary: In this study, lignin, a biomass material, was chemically modified and utilized in the interfacial polymerization process to improve the performance of nanofiltration membranes. The modified membranes showed enhanced hydrophilicity and anti-fouling properties, and the optimization of membrane pore size increased permeability. The study also demonstrated the potential application of the membranes in biogas slurry valorization.
JOURNAL OF MEMBRANE SCIENCE
(2024)