Article
Engineering, Environmental
Jialong Chai, Guilong Wang, Aimin Zhang, Xinyang Li, Zhaorui Xu, Jinchuan Zhao, Guoqun Zhao
Summary: In the face of severe pollution in modern industry, membrane separation is widely used for cost-effective treatment of wasted solvents. However, the poor processability of microporous polytetrafluoroethylene (PTFE) membranes poses challenges for waste separation. This study proposes an innovative in-situ fibrillation methodology to prepare PTFE nanofibrous membranes with high porosity, fine pore size, and thin thickness. These membranes exhibit outstanding mechanical properties, chemical resistance, and anti-fouling behavior, making them suitable for fast separation or filtration in harsh solvents. The study achieves high separation efficiency and permeate fluxes driven by gravity and pressure, opening new avenues for the fabrication of robust and anticorrosive PTFE nanofibrous membranes with high separation efficiency.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Chao Yang, Zeru Wang, Mengying Long, Bingnan Qin, Yuhan Wang, Keda Zhi, Yu Zheng, Junhui Zhao, Wenwen Li, Zhen Wang, Miaomiao Zhang, Runnan Zhang, Hong Wu, Zhongyi Jiang
Summary: A PPS membrane with an amphiphilic surface (aPPS) was designed and fabricated by assembling phytic acid (PA) and perfluorohexanoic acid (PFHA) on the PPS membrane to obtain superior antifouling properties. The amphiphilic surface showed nearly zero adhesion force towards oil due to low intermolecular interaction and small contact area. The aPPS membrane exhibited a low flux decline ratio, high flux recovery ratio, high permeance, and desired oil rejection, making it a promising material for oil/water emulsion separation.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Environmental Sciences
Jiahui Zhao, Lin Cao, Xiao Wang, Haoling Huo, Huaijun Lin, Qiwei Wang, Xusheng Yang, Florian Vogel, Wei Li, Zhidan Lin, Peng Zhang
Summary: Metal organic frameworks (MOFs) have great potential in improving the performance of water treatment membranes. In this study, novel nanoparticles based on both nanoporous MOFs and organic PDA layer were used as dopants for PES ultrafiltration membranes. The resulting membranes showed enhanced permeability and anti-fouling properties, and demonstrated promising applications in oily sewage remediation.
ENVIRONMENTAL RESEARCH
(2023)
Article
Engineering, Chemical
Chao Wei, Cheng-Lin Wang, Ying-Jie Hao, Xuan Zhang, Ji-Sheng Long, Wan-Zhong Lang
Summary: Construction of separation membranes with underwater super-oleophobic property is a promising approach for oily wastewater treatment, but current methods face challenges such as time-consuming preparation and unstable membranes. In this study, alkali-induced hydroxylation and nature-inspired coordination coating were used to modify poly (vinylidene fluoride) (PVDF) membranes. The modified membranes exhibited excellent hydrophilicity and specific hierarchical roughness, resulting in hydrophilic/underwater super-oleophobic properties. The optimized membrane showed improved flux and oil rejection in treating two simulated oil-in-water emulsions, along with enhanced antifouling behavior and membrane stability.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Hui Li, Jianqiang Zhang, Shaopeng Gan, Xilu Liu, Lei Zhu, Fujun Xia, Xiaoming Luo, Qingzhong Xue
Summary: An oil-water separation membrane with bioinspired bubble-mediated antifouling strategy is developed to overcome the limitations of low surface energy and high viscosity of oil foulants. The membrane is superhydrophilic/superaerophobic and can catalyze hydrogen evolution, generating microbubbles that coalesce with the oil fouling and increase their buoyancy and warp their interface tension. The synergy of warped interface tension, increased buoyancy, and kinetic energy enables efficient dynamic antifouling and removal of solid sediment. The membrane maintains high flux in long-term oil-water and oil-sand-water emulsion separation, making it promising for treating industrial oily wastewater.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Engineering, Chemical
Ming Cao, Fan Xiao, Zijian Yang, Yingbo Chen, Ligang Lin
Summary: This research combines electrospinning and electrospraying technology to construct a Polytetrafluoroethylene (PTFE) nanofiber membrane (NFM) for efficient oily wastewater treatment. The membrane shows excellent separation performance for oil-water mixtures and surfactant-stabilized emulsions. These NFMs have the potential to be applied in low-pressure driven membrane separation systems for preliminary separation of different types of oily wastewater.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Huihui Deng, Qiwei Zheng, Hanbing Chen, Jing Huang, Hongding Yan, Mengxu Ma, Min Xia, Kemei Pei, Huagang Ni, Peng Ye
Summary: The use of composite membranes with GO and SiO2 nanoparticles can effectively adjust the channel microstructure for water treatment, greatly enhancing water flux and rejection rate by controlling the size of nanosheets and nanoparticles.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Yi Wang, Hao Yang, Yvling Yang, Lijing Zhu, Zhixiang Zeng, Shuan Liu, Yiguo Li, Zhiying Liang
Summary: In this study, composite membranes with excellent underwater anti-oil adhesion ability were successfully prepared using a specific method, efficiently separating crude oil-in-water mixtures and toluene-in-water emulsions with a separation efficiency of over 99%.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Shaobo Zhang, Yi Li, Yan Yuan, Li Jiang, Haitao Wu, Yanmao Dong
Summary: Membrane separation is an effective method for treating oily wastewater. This study improved the efficiency of oil-in-water emulsion separation by using alkali treatment to promote the deposition of Fe (III) on PVDF membranes. A hydrophilic coating was also produced on the membrane surface, enhancing permeability and antifouling properties. The modified membrane showed excellent pure water flux and oil rejection, as well as underwater anti-oil adhesion and antifouling properties. This environmentally friendly PVDF membrane modification strategy has great potential for oil-in-water emulsion separation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Asad Asad, Masoud Rastgar, Dan Sameoto, Mohtada Sadrzadeh
Summary: Through the use of hydrogel-facilitated phase separation technique, researchers successfully developed polyamide-imide microfiltration membranes that exhibit high oil removal efficiency, ultra-high water flux, and excellent anti-oil fouling properties. These membranes provide a promising solution to the challenge of oil/water separation.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Environmental Sciences
Vahid Vatanpour, Maryam Jouyandeh, Hossein Akhi, Seyed Soroush Mousavi Khadem, Mohammad Reza Ganjali, Hiresh Moradi, Somayeh Mirsadeghi, Alireza Badiei, Amin Esmaeili, Navid Rabiee, Sajjad Habibzadeh, Ismail Koyuncu, Sasan Nouranian, Krzysztof Formela, Mohammad Reza Saeb
Summary: In this study, PEI-SiO2/PSF nanocomposite membranes were prepared using nonsolvent-induced phase separation. The results showed that PEI-SiO2 nanoparticles were uniformly dispersed in the PSF-based membranes, leading to a decrease in water contact angle and improvements in fouling resistance and permeability.
Article
Engineering, Chemical
Yang Wang, Jianqiang Wang, Yajie Ding, Shouyong Zhou, Fu Liu
Summary: A novel membrane antifouling method using in situ generated micro-bubbles for oil/water separation was proposed in this study, which combined membrane separation with catalytic reaction to reduce fouling. The in situ generated micro-bubbles significantly inhibited the surface deposition of rejected oils, leading to a remarkable reduction in membrane fouling.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Chemistry, Physical
Baibing Wei, Kai Wang, Jiarong Wang, Tian C. Zhang, Xiaobao Tian, Shaojun Yuan, Yingqi Li, Haiqing Chang, Ying Liang, Zhihong Zhou
Summary: A thermo-modulated nanofibrous skin covered Janus membrane with good antifouling ability and oil-water separation performance was successfully developed using a scalable synergetic electrospraying/electrospinning method. The membrane exhibited high flux and efficiency in separating oil/water mixtures, and demonstrated improved wettability and water permeability with temperature variation. It also showed excellent antifouling and cleaning ability due to its thermoresponsive property.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Nanoscience & Nanotechnology
M. Obaid, Norah Alsadun, Osama Shekhah, Sarah Almahfoodh, Sheng Zhou, Noreddine Ghaffour, Mohamed Eddaoudi
Summary: Despite progress in oil-water separation, challenges like low permeance and fouling problems still exist. Superwettable materials, particularly metal-organic frameworks (MOFs), are potential candidates for oily wastewater treatment. However, MOFs have been rarely explored for separating stabilized oil-in-water emulsions, calling for the development of better MOF materials.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Sisi Ma, Ligang Lin, Xinyang Li, Wenying Shi, Xiaofei Zhai, Jing Yang
Summary: In this study, a nanosponge membrane with 3D-macrocycle beta-cyclodextrin as a molecular cage was developed for oil/water treatment and antifouling properties. The membrane showed improved hydrophilicity and better antifouling performance compared to a pure membrane. It also exhibited good adsorption performance for organic pollutants and desirable stability.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Chemistry, Applied
Heena, Komal Sharma, Kamlesh Kumar, Bhargab Das, Raj Kumar
Summary: In this study, holographic films were prepared using an automatic film applicator, and their performance was compared with films prepared by other methods. The results showed that holographic films prepared with the automatic film applicator had higher diffraction efficiency and more uniform thickness, making them suitable for holographic applications.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Athira S. Vijayan, Antony Joseph, Abey Joseph, T. S. Abhijith, Baiju G. Nair, V. Sajith
Summary: Novel polydopamine functionalized ceria-zirconia nanoparticles filled water-borne epoxy nanocomposite coatings were developed to prevent microbial-induced corrosion of mild steel. The coatings exhibited exceptional anti-biofouling and anti-biocorrosion properties due to the synergistic effect of PDA functionalization and zirconium incorporation, providing significant enhancement in charge transfer resistance and coating resistance.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Yudan Yi, Qingyong Sun, Qijun Li, Bi Shi, Ya-nan Wang
Summary: Producing metal-free leather is an effective approach to eliminate Cr pollution and achieve sustainable development of the leather industry. However, current metal-free tanning technologies have limitations in terms of water sorption and charge properties. By using cationic amphiphilic acrylic copolymers (PSD) as retanning agents, the properties of metal-free leather can be significantly improved, including enhanced hydrophobicity, better dye absorption, and excellent filling effect.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Yunqing Xia, Lifen Tong, Xiaofang Feng, Hubing Xiang, Yi He, Xiaobo Liu
Summary: By incorporating functionalized nanofillers, such as polydopamine-modified graphitic carbon nitride and cerium oxide, into epoxy coatings, their corrosion resistance can be improved and their protective period can be extended.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Weineng Lu, Guanhao Ma, Jinqing Qu
Summary: Four novel bis-chalcone-based carbazole derivative photoinitiators were designed and synthesized in this study. Their maximum absorption wavelengths were determined and found to exhibit high molar extinction coefficients. Furthermore, a three-component photoinitiation system including bis-chalcone/iodonium/amine was successfully used to trigger the rapid and efficient photopolymerization of acrylates. The photoinitiators also showed good photo bleaching and biocompatibility, making them suitable for applications such as 3D printing and deep coating curing.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Xingnan Zhou, Shixian Zhang, Yiheng Song, Hongmei Qin, Chuanxi Xiong, Shan Wang, Quanling Yang, Delong Xie, Rong Fan, Dan Chen
Summary: In this study, eco-friendly 3-amino-1,2,4-triazole (ATA) molecules were used to modify graphene oxide (GO) nanosheets for improving the anti-corrosion performance of water-borne epoxy (WEP) coating. The results show that ATA modification enhances the dispersion of GO in the polymer coating and significantly improves the barrier effect.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Hao Fu, Wei Bing, Xushibojie Liu
Summary: In this study, temperature-sensitive coatings with bacteria-killing and bacteria-releasing functions were prepared on silicone rubber surfaces by UV polymerization and UV photocatalysis. The modified surface exhibited strong and persistent bactericidal effect, inhibiting the formation of bacterial biofilm. Moreover, the smart surface can effectively release bacteria and resist bacterial adhesion through temperature changes. The modified silicone rubber surface showed good biocompatibility without cytotoxicity.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Lee Eyann, Zulkifli Mohamad Ariff, Mohamad Danial Shafiq, Raa Khimi Shuib, Muhamad Sharan Musa
Summary: By investigating the effect of MAA addition on the properties of the WEA core-shell emulsion, film and coating, it was found that MAA can significantly impact the structure and performance of the coatings, and has great potential for applications.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Jinkyu Choi, Kyung Hoon Min, Byeong Seok Kim, Sung-Hyeon Baeck, Sang Eun Shim, Yingjie Qian
Summary: A novel phosphorus-based flame retardant was designed by incorporating aryl groups, which effectively improved the flame retardancy and mechanical properties of polyurethanes.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Saowaluk Taechutrakul, Thananchai Piroonpan, Beata Paulina Rurarz, Slawomir Kadlubowski, Piotr Ulanski, Wanvimol Pasanphan
Summary: This study proposes the use of nanogels to disperse and stabilize water-insoluble organic pigment particles in water-based inks. The nanogels were prepared using electron beam-induced chemical reactions and showed good dispersion and stabilization properties. The use of nanogels in ink formulation improved the ink's hiding power, lightfastness, and resistance properties.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Shan Wan, Huikai Chen, Bokai Liao, Xingpeng Guo
Summary: In this study, 2-amino-5 mercapto-1,3,4-thiadiazole (ATT) was used as an intercalating agent to prepare ATT/BNNS nanofillers via a liquid-phase assisted ultrasound method. TEM results showed that ATT successfully exfoliated BNNS and reduced agglomeration. The WEP ATT/BNNS coating exhibited the best protective performance under saline immersion due to the combined action of ATT inhibitor and BNNS physical barrier.
PROGRESS IN ORGANIC COATINGS
(2024)
Review
Chemistry, Applied
Lijie Yin, Bo Zhang, Ming Tian, Nanying Ning, Wencai Wang
Summary: This paper reviews the recent progress in the synthesis of bio-based waterborne polyurethanes (BWPU) and focuses on its applications in coatings, adhesives, and antimicrobials. BWPU has attracted much attention due to its good physical and chemical properties, no VOCs emissions, exploitation of renewable substances, and structural design-ability.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Yuyang Zhou, Yang Chen, Xinming Cao, Haodong Fu, Yun Li, Yonghui Zhang, Jun Ma, Xin Liu
Summary: This study proposes a strategy to fabricate a high-strength double-layer superhydrophobic actuator, which consists of a metal/glass-based superhydrophobic substrate and a polymer superhydrophobic coating. The coating has high adhesive strength, self-cleaning, anti-ultraviolet irradiation, and anti-stripping properties, along with photothermal and magnetic response capabilities, enabling its application in various fields.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Fengbiao Chen, Fei Gao, Xinru Guo, Yu Chen, Xuelang Gao, Liang Shen
Summary: In this study, various covalent adaptable networks (CANs) were synthesized using multifunctional amines and compared with CANs prepared from primary and secondary amines. The results showed that the performance of CANs is closely related to the crosslinking density, and increasing the content of secondary amines improves the performance but weakens the dynamics.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Qian Zhang, Mengyi Shen, Xingcai Liu, Hao Fu, Wenbo Yang, Jinyuan Zhao, Jian Wang, Yaping Du, Chunjie Ma
Summary: Rare earth-containing corrosion inhibitors were successfully synthesized and added into epoxy coatings for the anti-corrosion of steel materials. The results showed that the coatings with rare earth elements had better anti-corrosion performance, and this difference in performance could be explained by the inherent properties of rare earth elements.
PROGRESS IN ORGANIC COATINGS
(2024)