Article
Polymer Science
Hossein Mahdavi, Nazanin Zeinalipour, Ali Akbar Heidari
Summary: The ATRP polymerization technique was used to graft methyl methacrylate monomers onto a Poly(vinylidene fluoride) backbone, creating high rejection and good permeate Flux membranes for dye separation.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
Seyed Mohammad Ali Ahmadi, Toraj Mohammadi, Navid Azizi
Summary: In this study, HNTs were functionalized and used as nanofillers, and experimental results showed that incorporation of amine-functionalized HNTs can enhance the CO2 permeability and ideal selectivity of the membranes.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Priya Tanvidkar, Aditya Jonnalagedda, Bhanu Vardhan Reddy Kuncharam
Summary: In this study, Mixed Matrix Membranes (MMMs) of UiO-66-NH2 nanoparticles dispersed in Cellulose Acetate (CA) were prepared. Detailed characterization and testing revealed that the MMMs have defects-free, voids-free structures with a better filler polymer interface. The MMMs showed improved CO2 permeability while retaining the CO2/CH4 selectivity. Among them, the 10 wt.% UiO-66-NH2/CA MMM exhibited the best gas separation performance.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Polymer Science
Niu Liu, Jun Cheng, Wen Hou, Xiao Yang, Junhu Zhou
Summary: Incorporating GO/core shell ZIF-8@ZIF-67 nanocomposites into Pebax membranes significantly improved CO2 permeability and selectivity, while also increasing tensile strength and elongation at break.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Vitalii Serdiuk, Oleh Shevchuk, Natalya Bukartyk, Tetiana Kovalenko, Anatolii Borysiuk, Viktor Tokarev
Summary: Magnetite nanoparticles with peroxide-containing polymer shell were successfully synthesized in this study, exhibiting superparamagnetic properties and a tendency towards self-assembly. Cross-linked composite films based on these nanoparticles were obtained, showing high physico-mechanical properties and biocompatibility.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Turkan Ormanci-Acar, Basak Keskin, Sevde Korkut, Oyku Mutlu-Salmanli, Turker Turken, Derya Y. Koseoglu-Imer, Tugba U. Demir, Yusuf Z. Menceloglu, Serkan Unal, Ismail Koyuncu
Summary: Environmental friendly Halloysite nanotubes (HNTs) are used to fabricate novel nanofiltration membranes by in situ interfacial polymerization of piperazine and trimesoyl chloride. The study compares different removal tools for excess amine solution to obtain defect free active layer in membranes. R2 membrane containing 0.02% [w/v] HNTs shows the best flux results and higher rejections of MgSO4 and dye.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Ahmad I. Ayesh, Belal Salah, Rama Nawwas, Asmaa S. Almarri, Aisha N. Al-Thani, Alanoud M. Al-Ahbabi, Noof A. Al Haidous
Summary: Flexible composite membranes consisting of CuO, ZnO nanoparticles, PVA, and GL plasticizer were fabricated for X-ray detector applications. The addition of nanoparticles led to a shift in glass transition temperature and improved thermal resistance. The composite membranes showed a negative temperature coefficient of resistance and a decent x-ray response proportional to the energy, with the best response observed for membranes containing both CuO and ZnO nanoparticles.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
Jun Cheng, Wen Hou, Niu Liu, Chen Yang, Junhu Zhou
Summary: By loading GeFSIX-1-Cu and PEGDME, the CO2 separation efficiency of SIPN-MMMs was improved. Increasing the loading of GeFSIX-1-Cu initially enhanced CO2 permeability and selectivity, but excessive loading resulted in decreased performance.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Chemistry, Physical
Min Zhang, Yiling Dai, Jing-Yao Hu, Shu Miao, Bo-Qing Xu
Summary: Well-faceted alloyed Pt nanoparticles have been synthesized, with Pt3Ni/C showing the highest Pt activity and Pt1Ni/C also exhibiting significant activity. The enhanced Pt activity in the PtnNi tetrahedrons is attributed to their small sizes and Pt-enrichment at the surface layers after dealloying treatment.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Polymer Science
Maria Assunta Signore, Chiara De Pascali, Donatella Duraccio, Giulio Malucelli, Ambra Fioravanti, Enrico Melissano, Maria Concetta Martucci, Maurizio Masieri, Pietro Siciliano, Luca Francioso
Summary: This study focused on the fabrication of nanocomposites based on zinc oxide nanostructures and nanocellulose dispersed in a UV-cured acrylic matrix, aiming for functional coatings for self-powered applications. The piezoelectric behavior of the nanocomposites was significantly influenced by the nitride layer and proof mass insertion, leading to improved piezoelectric response.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Alejandro Avila-Ortega, Jose Pablo Avalos-Hernandez, Rudy Trejo-Tzab, Andres Ivan Oliva, Juan Antonio Juarez-Moreno
Summary: The article presents a new oil/water emulsion separation technology using nanoparticle-decorated membranes, characterized through various analytical methods, demonstrating their separation efficiency and antifouling ability.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Review
Chemistry, Multidisciplinary
Nitin Kumar Sharma, Jyotsna Vishwakarma, Summi Rai, Taghrid S. Alomar, Najla AlMasoud, Ajaya Bhattarai
Summary: The development of reliable and environmentally-friendly techniques for nanoparticle synthesis, known as green nanotechnology, is gaining attention. Natural sources, such as bacteria, fungi, biopolymers, and plants, are suitable candidates for synthesizing silver nanoparticles (AgNPs). The synthesis conditions significantly impact the morphology and applications of AgNPs. This review focuses on the recent use of natural sources for AgNP synthesis and discusses their properties and applications in various fields.
Article
Polymer Science
Jan Polena, Zdenek Hrdlicka, Stepan Hovorka, Marie Svecova, Alzbeta Parchanska, Tereza-Marketa Durd'akova, Ondrej Vopicka
Summary: The study demonstrates that chloroprene rubber membranes exhibit higher permeability to dichloromethane and methylal than cyclopentane, showing higher selectivity. Moreover, chloroprene rubber membranes plasticized by dichloromethane and methylal not only enhance selectivity but also increase transmembrane flux.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Chemistry, Applied
Kun Peng, Yanan Huang, Na Peng, Chunyu Chang
Summary: This study developed a superhydrophilic/underwater superoleophobic nanocellulose-based membrane by depositing silver nanoparticles on tunicate cellulose nanocrystals. These membranes exhibit nanoporous structure, high separation efficiency for oil/water emulsion, and excellent antibacterial efficacy.
CARBOHYDRATE POLYMERS
(2022)
Article
Polymer Science
Vinicius D. Silva, Adillys M. C. Santos, Juliano E. Oliveira, Eliton S. Medeiros
Summary: This study investigates the use of poly(lactic acid)/polyaniline (PLA/PANI) solution blow-spun nanofibrous membranes as gas sensors for fruit ripening monitoring. Real-time monitoring of changes in volatile organic compounds (VOCs) released during fruit ripening allows for clear distinction between different patterns of ripening in different fruit categories.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
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
Environmental Sciences
Wei Tang, Yunsi Liu, Qiuyan Li, Ling Chen, Qi Li, Pan Li, Shengji Xia
Summary: Intense rainfall and extreme weather events can significantly increase the levels of bacteria and pathogens in water sources and drinking water. The abundance of Cyanobacteria, in particular, increases after such events. The biological activated carbon tank may serve as a potential reservoir for pathogens.
Article
Environmental Sciences
Qi Dai, Yanyan Wang, Ling Chen, Pan Li, Shengji Xia, Qinghui Huang
Summary: This study investigated the occurrence, sources, and risks of 16 priority polycyclic aromatic hydrocarbons (PAHs) in urban source water at the tidal reach of the Yangtze River. The results showed that 15 out of 16 PAHs were detected in the water samples, with detection frequencies ranging from 53% to 72%. The total concentrations of PAHs reached up to 2.8 μg/L and increased during tidal transitions. The concentrations and compositions of PAHs varied with different sampling campaigns, with higher levels and more components observed in rainy and cold months. The priority PAHs in the tidal water source were mainly from combustion activities, but oil spills/leakage also made important contributions during rainy months. High-molecular-weight PAHs in this water source may pose risks to aquatic life, but they do not pose a carcinogenic risk to human health through ingestion of drinking water.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Review
Engineering, Chemical
Xinxin Wei, Yanling Liu, Junfeng Zheng, Xiaomao Wang, Shengji Xia, Bart Van der Bruggen
Summary: This study critically summarizes the roles of nanomaterials with different dimensions and positions in the construction of thin-film nanocomposite (TFN) membranes. The efficacy of nanomaterial incorporation in tailoring membrane properties and separation performance is analyzed through the evaluation of water permeance, water/salt selectivity, and characterization parameters of TFN membranes.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Review
Environmental Sciences
Ziyan Zhang, Kaiming Fan, Yanling Liu, Shengji Xia
Summary: This review systematically summarizes the research progress of polyester and polyester-amide nanofiltration membranes, including the synthesis strategies, property tuning mechanisms, and application advantages. Current challenges and future development directions are also proposed. This review provides guidance for designing high-performance polyester and polyester-amide membranes, thereby further enhancing the efficacy of nanofiltration.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Chemical
Xiaoping Wang, Yanling Liu, Kaiming Fan, Peng Cheng, Huabiao Xia, Shengji Xia
Summary: The incompatibility between inorganic nanoparticles and polyamide matrix in thin film nanocomposite (TFN) nanofiltration membranes tends to generate defects and reduce separation performance. This study successfully modified MoS2 nanoparticles with hydrophilic functional groups and incorporated them into the polyamide layers of TFN membranes. The modified membranes exhibited improved water permeance and selectivity compared to the control membrane and the original MoS2 modified TFN membrane. The enhanced performance was mainly attributed to the improved hydrophilicity of the nanoparticles, resulting in a thinner and properly looser selective layer. This work provides an effective strategy to enhance the performance of TFN nanofiltration membranes through functionalization of nanomaterials.
Article
Engineering, Chemical
Xiaoping Wang, Yanling Liu, Kaiming Fan, Peng Cheng, Shengji Xia
Summary: Introducing nanomaterials into the polyamide layer of TFC membranes enhances permeability without sacrificing selectivity. In this study, novel TFN membranes were prepared by varying the deposition density of hierarchical flower-like structured MoS2. These membranes showed increased effective filtration area and reduced mass transfer resistance. They also exhibited looser polyamide layers with higher hydrophilicity and negative surface charges compared to control TFC membranes. The optimal TFN membrane achieved excellent separation performance and structure stability, making it suitable for water/wastewater treatment.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Review
Chemistry, Multidisciplinary
Chao Wu, Lei Xia, Shengji Xia, Bart van der Bruggen, Yan Zhao
Summary: Membrane technology has great potential in liquid waste treatment and resource recovery. However, the non-adjustable pore size of traditional membranes limits their selectivity for target ions. Covalent organic frameworks (COFs) have emerged as a promising candidate for advanced ion separation membranes due to their low density, large surface area, tunable channel structure, and tailored functionality. This review analyzes and summarizes the progress in understanding ion capture mechanisms, preparation processes, and applications of COF-based membranes, providing promising approaches for the design, preparation, and application of COF-based membranes in ion selectivity for recovery of ionic resources.
Article
Engineering, Chemical
Yidi Huang, Yanling Liu, Kaiming Fan, Shengji Xia
Summary: The addition of powdered activated carbon (PAC) to gravity-driven membrane (GDM) filtration significantly enhances the removal of dissolved organic compounds (DOC) and improves the removal efficiency of ammonia nitrogen. However, the presence of PAC reduces the permeability of the GDM system due to increased extracellular polymeric substances (EPS) content and decreased metazoan amounts in the biofilm. This study demonstrates the link between microbial community and hydraulic resistance of biofilm, providing practical implications for the application of GDM processes.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Review
Engineering, Environmental
Airan Hu, Yanling Liu, Junfeng Zheng, Xiaomao Wang, Shengji Xia, Bart Van der Bruggen
Summary: The utilization of salt additives in interfacial polymerization for thin film composite membranes has not been systematically summarized. This review provides an overview of various salt additives used to tailor membrane properties and performance. The effects and mechanisms of organic and inorganic salt additives on membrane formation and structure are discussed, and their potential for improving membrane performance is highlighted.
Article
Engineering, Environmental
Peng Cheng, Tongren Zhu, Xiaoping Wang, Kaiming Fan, Yanling Liu, Xiao-mao Wang, Shengji Xia
Summary: The confined interfacial polymerization (CIP) method was used to synthesize polyamide (PA)-modified nanofiltration (NF) membranes with metal-organic framework (MOF) nanosheets, achieving a transition from 2D MOF membranes to polyamide NF membranes. The prepared membrane exhibited high rejection capacity and water permeance, outperforming both pristine MOF membranes and conventional PA membranes containing MOF nanosheets. The PA-modified MOF membrane also showed excellent stability and antifouling ability, providing a new strategy for efficient MOF-based NF membranes in water treatment applications.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Chemical
Xiaoping Wang, Yanling Liu, Kaiming Fan, Peng Cheng, Shengji Xia, Liwei Qian
Summary: Incorporating suitable-sized nanoparticles into the organic phase of interfacial polymerization can enhance membrane performance. In this study, novel thin-film nanocomposite (TFN) membranes were prepared by modifying the polyamide (PA) layer with acyl chloride@MoS2 nanoparticles. The added nanoparticles restricted the diffusion of piperazine monomers, resulting in a looser PA layer, a rougher and more hydrophilic surface, and improved membrane performance.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Environmental
Kaiming Fan, Zhaohuan Mai, Yanling Liu, Xiaoping Wang, Yidi Huang, Peng Cheng, Shengji Xia, Hideto Matsuyama
Summary: Polyester (PE) membranes have gained significant attention due to their remarkable chlorine resistance and antifouling ability. In this study, three relatively dense polyester membranes were successfully prepared using erythritol, xylitol, and isomalt as monomers, showing satisfying separation capacities and potential for applications in drinking water treatment. The study also revealed the influence of molecular size, hydroxyl density, and activity of polyols on the physicochemical properties and separation performance of PE membranes. The PE membranes outperformed commercial NF270 and lab-made polyamide membranes in terms of chlorine resistance and antifouling performance. This study provides valuable insights for the development of high-performance PE membranes through rational monomer selection and performance optimization.
ACS ES&T ENGINEERING
(2023)
Article
Engineering, Environmental
Yanling Liu, Kunpeng Wang, Peng Cheng, Kaiming Fan, Yawei Gao, Shengji Xia, Xiao-mao Wang, Yuefeng F. Xie, Xia Huang
Summary: This study found that a simple hexane treatment after the interfacial polymerization reaction can significantly alter the properties of polyamide (PA) thin-film composite (TFC) nanofiltration membranes and enhance their separation performance in drinking water treatment. The treatment time of hexane has a significant impact on the membrane properties, with 5 seconds of hexane rinsing leading to a thinner active layer and more than 60% improvement in water permeance. Hexane soaking for a longer time can effectively reduce the membrane surface negative charge density by approximately 70%. These property variations make the hexane-treated membranes more competitive than conventional PA membranes for hardness removal in drinking water treatment. Furthermore, the rejection performance for organic micropollutants can be maintained after hexane treatments of varying durations due to the unchanged membrane pore sizes.
ACS ES&T ENGINEERING
(2023)
Article
Engineering, Environmental
Mengen Wang, Qihang Cen, Rong Zeng, Yidi Huang, Yanling Liu, Shengji Xia
Summary: Membrane separation technologies, especially ceramic membranes, have promising applications in water treatment. This study investigated the effectiveness of a PAC-ceramic membrane hybrid process in treating model organic pollutants and natural water. The results showed that the hybrid process alleviated membrane fouling caused by humic acid, but aggravated it when caused by sodium alginate. PAC significantly improved the removal performance of ceramic membranes for organic matters and effectively controlled membrane fouling.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
