Article
Materials Science, Multidisciplinary
Tero Luukkonen, Mohammad Bhuyan, Anna-Maria Hokajarvi, Tarja Pitkanen, Ilkka T. Miettinen
Summary: Geopolymer-bentonite composite foam with silver nanoparticles was prepared and applied for water disinfection in this study. The results showed that the foam had a promising inactivation efficiency against Escherichia coli and intestinal enterococci bacteria, but a poor inactivation efficiency against somatic coliphage viruses. These preliminary findings demonstrate the potential of geopolymer foam composites for point-of-use water disinfection.
Review
Biochemistry & Molecular Biology
Achisa C. Mecha, Martha N. Chollom, Bakare F. Babatunde, Emmanuel K. Tetteh, Sudesh Rathilal
Summary: Increased affordability, smaller footprint, and high permeability quality have led to more widespread use of membranes in water treatment. However, the limitations of membrane pore size restrict their effectiveness in removing smaller matter and harmful microorganisms. The incorporation of nanoparticles in membranes shows promise for improving disinfection, permeability, and reducing fouling.
Review
Environmental Sciences
Ecem Bahcelioglu, Husnu Emrah Unalan, Tuba Hande Erguder
Summary: Nanosilver has emerged as a promising alternative to traditional water disinfection methods due to its high effectiveness, low energy consumption, lack of by-product generation, and ability to achieve high removal efficiencies. Understanding the factors influencing the water disinfection performance of nanosilver is crucial for its further development and application in water treatment technologies.
CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Physical
Ljubica Tasic, Danijela Stanisic, Caio H. N. Barros, Leticia Khater Covesi, Erick R. Bandala
Summary: This study tested the antimicrobial activity of three different biogenic silver nanoparticles against Escherichia coli, and evaluated the influence of different stabilizing agents and UV radiation. The results showed that UV radiation enhanced the antimicrobial effects of nanoparticles, with protein-capped nanoparticles exhibiting the highest activity.
Article
Chemistry, Multidisciplinary
Shuo Deng, Dongsheng Wang, Zhiqiang Xiong, Siyu Zhang, Dengyu Li, Jin Zeng, Xuejiao Zhang, Qing Zhao
Summary: In this study, a new method for capturing and sterilizing pathogenic bacteria in water using BP-PNIPAM nanocomposites is proposed. The material can rapidly capture and co-precipitate bacterial cells under the stimulation of near-infrared irradiation, and exhibits high disinfection efficiency. Additionally, BP-PNIPAM shows no obvious toxicity to human cells. This research provides an efficient, biocompatible, and convenient approach for addressing water contamination by pathogenic bacteria.
ENVIRONMENTAL SCIENCE-NANO
(2022)
Article
Biotechnology & Applied Microbiology
May Alherek, Onita D. Basu
Summary: This study investigated the application of silver, zinc, and copper nanoparticles as disinfectants in drinking water. The results showed that silver had the highest disinfection efficacy, while zinc had the lowest. The combined application of nanoparticles exhibited synergistic effects, with the combination of silver and zinc having the best performance.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Fangli Ran, Chenyu Li, Zhenxin Hao, Xinyuan Zhang, Lin Dai, Chuanling Si, Zhiqiang Shen, Zhigang Qiu, Jingfeng Wang
Summary: A simple and economic method was established to fabricate lignin and silver hybrid nanoparticles with bactericidal ability. The nanoparticles showed remarkable dispersity, uniformity, and encapsulation efficiency, and demonstrated good bactericidal effects and durability. The bactericidal mechanism of the nanoparticles was found to be related to oxidative stress.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2022)
Article
Chemistry, Physical
Ruiquan Yu, Ruixin Zhu, Jing Jiang, Ruifeng Liang, Xiangsheng Liu, Gongyan Liu
Summary: The study developed a novel microfiltration membrane, PCBDA@AgNPs-MF, with efficient water disinfection capability and the ability to effectively inhibit biofilm formation on the membrane surface, showing potential for long-term anti-biofouling performance and maintaining water flux.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Optics
A. Ahsan, H. Kamran, A. Malik, M. M. Saeed, H. M. Awan, H. Qayyum
Summary: In this study, the efficacy of silver nanoparticles embedded filter paper in removing antibiotic-resistant bacteria from water was evaluated. The results showed that the embedded silver nanoparticles had a good bactericidal activity and could efficiently remove bacteria from the water. Moreover, the bactericidal activity of the filter paper was maintained even after multiple uses, with almost 100% reduction in bacterial growth.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Materials Science, Ceramics
Faten Hasan, Ibrahim Alghoraibi
Summary: One novel method for disinfecting water is the use of silver nanoparticles. The aim of this study was to prepare a composite material based on chitosan boehmite and enhance its antibacterial activity with silver nanoparticles. The stability and formation of the composite were confirmed through various techniques. The results showed that the composite has the potential for water disinfection and incorporation into household filtration systems.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Review
Engineering, Environmental
Hechao Chen, Jidao Xie, Chengxiang Huang, Yining Liang, Yulin Zhang, Xiaoyan Zhao, Yuhua Ling, Lei Wang, Qi Zheng, Xiaoqiu Yang
Summary: A database of 6310 disinfection by-products (DBPs) reported between 1974 and 2022 was constructed, providing a tool for screening new DBPs, comprehensive review, and predictive model development. The study presented the origin of the collected DBPs and conducted comparative analysis on their basic information. Most DBPs remained to be identified, with acids as the main functional groups, aliphatic and aromatic compounds as the major carbon frameworks, and molecular weights ranging from 200 to 400 Da.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Environmental Sciences
Ekaterina Sokolova, Oscar Ivarsson, Ann Lilliestrom, Nora K. Speicher, Henrik Rydberg, Mia Bondelind
Summary: This study evaluated the suitability of data-driven models of different complexity for predicting E. coli concentrations in a river in Gothenburg, Sweden. Models with multiple predictors outperformed univariate models, with Random Forest and TPOT showing higher performance but a tendency of overfitting. Water temperature, microbial concentrations upstream and at the water intake, and precipitation upstream were identified as important predictors.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Food Science & Technology
Hui Chen, Chen Qiu, Yiran Jiang, Xinyu Liao, Dan Wu, Mofei Shen, Tian Ding
Summary: In this study, a water disinfection strategy based on silver nanoparticles loaded on UiO-66 metal-organic frameworks was proposed and confirmed through various analytical techniques. The research has significant potential for water treatment applications.
FOOD SCIENCE AND HUMAN WELLNESS
(2022)
Article
Environmental Sciences
Robbie A. Venis, Onita D. Basu
Summary: This research investigates the supplementation of ceramic water filters (CWFs) with low-cost bactericide alternatives, namely zinc oxide (ZnO) and silver nanoparticles (AgNP). The results show that the addition of AgNP correlates with subsequent measured release values, while the impregnation of ZnO does not. The eluted metal concentrations are related to disinfection efficacy, and including both Zn and Ag in CWFs improves short-term and long-term disinfection efficacy and water safety.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Editorial Material
Green & Sustainable Science & Technology
William A. Mitch
Summary: Rapid growth in China has led to concerns about the impact of industrial pollution on drinking water and health. A recent study suggests that high levels of bladder cancer may be attributed to concentrations of disinfection byproducts.
NATURE SUSTAINABILITY
(2022)
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)