Article
Engineering, Chemical
Pooria Karami, Sadegh Aghapour Aktij, Behnam Khorshidi, Mostafa Dadashi Firouzjaei, Asad Asad, Mark Elliott, Ahmad Rahimpour, Joao B. P. Soares, Mohtada Sadrzadeh
Summary: This study reported an effective method to reduce fouling of polyamide thin film composite membranes by grafting amine-functionalized nanodiamond particles. The modified membranes exhibited significantly reduced fouling and increased antibacterial activity against Escherichia coli cells. These membranes have potential applications in water reclamation due to their simple fabrication, antifouling, and antibacterial properties.
Article
Biotechnology & Applied Microbiology
Feng Yang, Chenyi Wu, Yuanzhang Jiang, Lin Tan, Rui Shu
Summary: Due to the advantages of aesthetics, designability, convenient removal, and comfortable experience, invisible orthodontics (IO) have gained wide recognition and acceptance. However, most of the membranes used for IO only retain their shape and neglect other important functions such as antibacterial and antifouling activities. In this study, antibacterial composite membranes (ACMs) were manufactured with favorable transparency and excellent antibacterial ability. The bactericidal rates of ACMs against Staphylococcus aureus, Escherichia coli, and Streptococcus mutans were all above 99.99%. The amount of protein adhered to the surface of ACMs was also significantly low, indicating ideal antifouling performance. These multifunctional ACMs are expected to be promising alternatives for current IO treatments.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Jnyana Ranjan Mishra, Sushanta K. Samal, Smita Mohanty, Sanjay K. Nayak
Summary: A novel PVDF/Ag@TiO2 nanocomposite membrane with high pure water flux and BSA rejection, as well as fast removal of E. coli, was successfully prepared. The incorporation of nanoparticles significantly enhanced the antifouling and antibacterial properties of the membrane.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Biochemistry & Molecular Biology
Jie Zhang, Zicong Jian, Minmin Jiang, Bo Peng, Yuanyuan Zhang, Zhichao Wu, Junjian Zheng
Summary: This study systematically explored the influence of different contents of PEG on the dispersion of TiO2 nanoparticles and the properties of PVDF/TiO2 composite membranes. By controlling the PEG content, the membrane's antifouling performance was significantly improved, providing a new approach for applications in sewage treatment.
Article
Engineering, Chemical
Ralph Rolly Gonzales, Lei Zhang, Yuji Sasaki, Wataru Kushida, Hideto Matsuyama, Ho Kyong Shon
Summary: The study developed reduced aliphatic polyketone-based thin film composite membranes for treatment of oily wastewater, showing outstanding water permeability and fouling resistance. It is a suitable oily wastewater treatment process with potential for further development of comprehensively fouling-resistant membranes.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Environmental
Krishanu Bhowmick, Sanjukta Roy, Subhamoy Bhowmick, Rachna Jain, Swachchha Majumdar, Ganesh C. Sahoo, Priyanka Mondal
Summary: In this study, positively charged ceramic-supported polymeric membranes were fabricated and characterized for their structure and performance. The membranes showed good water permeability, high rejection rates for salts and heavy metals, as well as excellent anti-fouling and antibiofouling properties. They have potential applications in wastewater treatment.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Biochemistry & Molecular Biology
Changjin Ou, Sisi Li, Zhongyi Wang, Juan Qin, Qian Wang, Zhipeng Liao, Jiansheng Li
Summary: The study successfully enhanced the separation performance of TFN membrane by synthesizing and incorporating organic nanobowls, resulting in improved water flux and rejection towards different salt solutions. The TFN membrane also exhibited satisfactory purification performance towards tap water, municipal effluent, and heavy metal wastewater.
Article
Engineering, Chemical
Jinchao Fang, Ge Liu, Cheng Chen, Chuner Lin, Bin Zhang, Huiyang Jin, Yuji Chen, Jingyu Lu, Liping Zhu
Summary: This study developed an antibacterial thin film composite membrane using lysozyme nanofilm as a selective layer, which showed high rejection ratio and water permeation flux, and exhibited high antibacterial efficiency towards E. coli and S. aureus.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Katsiaryna S. Burts, Tatiana Plisko, Vladimir G. Prozorovich, Galina B. Melnikova, Andrei I. Ivanets, Alexandr Bildyukevich
Summary: The modification of the polyvinyl alcohol (PVA) selective layer of thin film composite (TFC) membranes using aluminosilicate (Al2O3•SiO2) nanoparticles improved the structure and pervaporation performance. PVA-Al2O3•SiO2/polyacrylonitrile (PAN) thin film nanocomposite (TFN) membranes were developed for the separation of ethanol/water mixtures, resulting in increased hydrophilicity and improved stability compared to the reference membrane.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Engineering, Chemical
Mehrasa Yassari, Alireza Shakeri
Summary: In this study, polyamide thin-film composite forward osmosis (TFC-FO) membranes were fabricated using beta-cyclodextrin-graft-poly acrylic acid (beta-CD-g-PAA) as a nature-based graft polymer. The synthesized polymer was incorporated into the active layer to enhance the hydrophilicity, antifouling, and overall performance of the TFC-FO membrane. The modified membranes showed increased water flux and demonstrated perm-selectivity in reverse osmosis filtration. Moreover, the membranes exhibited excellent antifouling properties and high flux recovery ratio in the forward osmosis mode.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2022)
Article
Engineering, Chemical
Luyao Deng, Shaolu Li, Yiwen Qin, Longjiang Zhang, Haonan Chen, Zaigong Chang, Yunxia Hu
Summary: The TFC NF membrane grafted with zwitterionic PEI shows enhanced hydration capacity, water permeability, ion selectivity, and antifouling properties compared to other membranes. The zwitterionic PEI mitigates the electrostatic attraction between the membrane surface and protein foulants, resulting in lower flux decline and higher flux recovery, demonstrating improved antifouling performance of the membrane.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Zhengyi Huang, Qianqian Zeng, Ying Liu, Yanchao Xu, Renjie Li, Huachang Hong, Liguo Shen, Hongjun Lin
Summary: The study introduces a novel PES-TiO2@MXene composite membrane with superior separation performance and antifouling properties, especially under UV irradiation for self-cleaning. The composite membrane demonstrates excellent flux and rejection rate, along with significantly reducing attractive interactions with foulants. The facile fabrication method and efficient membrane performance indicate promising application prospects for the proposed PES-TiO2@MXene composite membrane.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Biochemistry & Molecular Biology
Yichen Chen, Wenmeng Yu, Hu Cao
Summary: This study grafts zwitterionic arginine (Arg) onto polyamide poly(ether sulfone) (PA-PES) membrane, improving its hydrophilicity, antifouling, and antibacterial properties. The modified membrane shows an increased water flux of 113.2% and high NaCl rejection. The dynamic fouling tests demonstrate the membrane's enhanced antifouling performance for oily wastewater treatment. Moreover, the membrane with guanidine cationic groups exhibits enhanced antibacterial properties.
Article
Engineering, Chemical
Ling Wang, Mohammad Kahrizi, Peng Lu, Yayu Wei, Hong Yang, Yifei Yu, Linghui Wang, Yanshuo Li, Shuaifei Zhao
Summary: Support layer properties play a critical role in the desalination performance of TFC membranes by impacting the formed rejection layer and water transport. Adjusting the support layer properties can enhance water permeability and antifouling capabilities of TFC membranes.
Article
Environmental Sciences
Lei Han, Liguo Shen, Hongjun Lin, Zhengyi Huang, Yanchao Xu, Renjie Li, Bisheng Li, Cheng Chen, Wei Yu, Jiaheng Teng
Summary: A functional TiO2-ABS composite membrane was generated through 3D printing for the first time and used for simulated oily water treatment. The membrane showed high hydrophilicity and oleophobicity, as well as high flux and oil rejection rate. The membrane demonstrated over 99% rejection for all five types of oil/water systems, indicating its broad development trend and application prospect.