Article
Engineering, Chemical
Hasan Fareed, Ghulam Hussain Qasim, Jaewon Jang, Woojin Lee, Seunghee Han, In S. Kim
Summary: In this study, the PV performance of PAN-based mixed matrix membranes was improved by adding kaolin, resulting in increased hydrophilicity and water sorption capacity. The addition of 2% kaolin enhanced membrane properties and led to outstanding permeation fluxes and salt rejection rates under different salt concentrations.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
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, Environmental
Waqas Ul Arifeen, Jungwook Choi, Kisoo Yoo, Jaesool Shim, Tae Jo Ko
Summary: Composite separators based on silica particles embedded in polyacrylonitrile and polyimide were fabricated using electspinning technique followed by thermal pressing. The results showed high thermal stability and tensile strength, leading to improved battery safety and performance. Compared to a commercial Celgard separator, the composite separator demonstrated better affinity towards liquid electrolyte, higher porosity, and lower internal resistance, resulting in stable cyclability and superior C-rate capacity, with a high discharge capacity of 147 mAh.g(-1) achieved.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Green & Sustainable Science & Technology
Meng Chen, Hu Yang, Zhen-liang Xu, Chong Cheng
Summary: This study demonstrated the separation of anionic dyes in saline solutions using uncharged PAN-Tris UF membranes. The membrane pore size and zeta potential significantly influenced the rejection behavior of dyes, with membrane performance depending on the molecular size, valence, and membrane properties. Furthermore, investigation of the separation mechanism revealed insights that could guide the rational design of UF membranes for highly effective treatments of dye-containing wastewater.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Materials Science, Multidisciplinary
Ji Hye Lee, Muthu Gnana Theresa Nathan, Hee Woong Kim, Sang-Min Lee, Hong -Il Kim, Jin-Hee Kim, Inseok Seo, Jae-Kwang Kim
Summary: Polymer/ceramic composite gel electrolytes, specifically PAN/Al2O3, show high ionic conductivity and excellent cycling performance, making them promising alternatives for high-energy and safe lithium-ion batteries.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Polymer Science
Jiawen Fu, Haowei Pan, Mingzhe An, Zihao Li, Hong Wang, Xinping He, Chunhai Yi
Summary: A pH-resistant PVA-based composite membrane with efficient pervaporation desalination performance was developed by adjusting the cross-linking behavior. The membrane showed excellent stability and desalination performance under extreme pH conditions, making it promising for industrial wastewater treatment.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Engineering, Chemical
Xing Yang, Tina Hsia, Andrea Merenda, Riyadh AL-Attabi, Ludovic F. Dumee, San H. Thang, Lingxue Kong
Summary: The purification of biopharmaceutical streams is crucial for the production of high-quality therapeutic bioproducts. In this study, a novel polyacrylonitrile (PAN)-based nanofibrous membrane with strong anion exchange functionality was developed using electrospinning. The resulting composite membranes showed positive surface charge and different surface properties due to changes in surface micro/nano morphology.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Review
Chemistry, Physical
Ziwen Yuan, Yanxi Yu, Xiao Sui, Yuanyuan Yao, Yuan Chen
Summary: Carbon composite membranes show great potential for addressing the challenges in thermal-driven membrane processes, such as MD and PV. Recent research has focused on developing these membranes and enhancing their performance and stability, creating antifouling properties, and resolving the trade-off between permeability and selectivity. Further studies have also explored new MD processes enabled by carbon materials, highlighting the promising future research directions in this field.
Article
Biochemistry & Molecular Biology
Dong Xu, Guangyao Pan, Yutong Ge, Xuan Yang
Summary: The study developed a novel method for preparing PAN membranes with a highly hydrophilic and negatively charged surface as well as interior structure. The resulting membrane showed a highly hydrophilic surface and strong protein retention properties, making it a potential candidate for protein production or separation processes.
Article
Chemistry, Multidisciplinary
Seyed Saeid Hosseini, Hadi Khodadadi, Bita Bakhshi
Summary: This study aimed to develop high-performance polyacrylonitrile (PAN) microfiltration membranes for bacteria removal from drinking water, with successful results in tailoring membrane microstructure and improving bacteria rejection rates. The study showed that adjustments in PAN concentration, addition of citric acid, feed concentration, and operating pressure can enhance membrane rejection, with the PAN membranes proving more effective in removing gram-positive bacterial strains.
KOREAN JOURNAL OF CHEMICAL ENGINEERING
(2021)
Article
Engineering, Chemical
Xin Zhao, Yuang Che, Yinghui Mo, Weiqi Huang, Can Wang
Summary: In this study, PEI modified GO/MXene composite membranes were fabricated and tested, showing a synergistic effect in water permeability and rejection of metal cations, especially with improved rejection of Ca2+ and Mg2+. The removal mechanism of metal ions mainly involved steric effect and electrostatic effect, which indicates great potential for water softening in practical applications.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Chengye Zuo, Shuainan Xu, Xiaobin Ding, Wanqin Jin, Weihong Xing, Xuebin Ke
Summary: This study evaluates the effects of feed concentrations, temperature, and membrane microstructures on salt rejection of PDMS composite membrane for treating pharmaceutical wastewater. Various characterization techniques are used to analyze the microstructures of the membrane. The results show that increasing feed concentration of isobutanol decreases salt rejection, while increasing temperature increases salt rejection. The relaxation of PDMS polymer chains also affects the salt rejection.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Yao Liang, Ziye Wang, Ting Yang, Yujia Tong, Weixing Li
Summary: Catalytic pervaporation membranes are effective in promoting esterification reactions. In this study, a catalytic composite membrane (CCM) with a C/PAN/S structure was developed. By adding g-C3N4-SO3H and optimizing the preparation conditions, the CCM demonstrated improved separation performance and stability.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Applied
Xiuxiu Ren, Huan Yu, Meng Guo, Rong Xu, Jing Zhong
Summary: In this study, a long alkyl chain-containing organosilica layer was utilized to modify silicalite-1 membranes, resulting in bi-layered BTESO/silicalite-1 composite membranes. After BTESO modification, the surface of the membranes became smoother, denser, and more hydrophobic. The modified membranes exhibited good separation performance in pervaporation, with increased ethanol flux and reduced water flux without sacrificing ethanol flux.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Engineering, Chemical
Haipeng Zhu, Yang Pan, Xuefei Sun, Gongping Liu, Minghui Qiu, Xiaobin Ding, Yiqun Fan, Wanqin Jin
Summary: This study focuses on the recycling of inorganic substrates used for fabricating polymeric composite membranes, achieving efficient membrane recycling through thermal degradation and ultrasonic cleaning. The results demonstrate optimized transport properties and high separation performance of the recycled membrane, showcasing potential energy savings and stable flux during continuous separation processes.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Arvin Sohrabi, Mousa Meratizaman, Shuli Liu
Summary: This paper simulates and discusses possible solutions to improve the economic and technical performances of a battery-less renewable energy-powered BWRO system under real climate conditions. The study finds that the photovoltaic-based system performs better in terms of specific energy consumption and unused energy ratio.
Article
Engineering, Chemical
Chunlan Pan, Xiaoyin Hu, Vishal Goyal, Theyab R. Alsenani, Salem Alkhalaf, Tamim Alkhalifah, Fahad Alturise, Hamad Almujibah, H. Elhosiny Ali
Summary: This paper introduces a novel waste heat recovery method using the hot flue gas from a ship's engine to produce liquefied hydrogen while meeting the ship's air-conditioning requirement. A comprehensive feasibility assessment is conducted and an artificial neural network with a multiobjective grey wolf optimization method is used for optimization. The findings indicate the highest mean sensitivity index of the flash temperature and the best optimization scenario for exergy efficiency, CO2 emission reduction, and liquefied hydrogen cost.
Article
Engineering, Chemical
Daniele Chinello, Jan Post, Louis C. P. M. de Smet
Summary: In this study, PVDF-based anion-exchange membranes were designed to selectively separate nitrate from chloride. Experimental data showed that increasing the concentration of PVDF enhanced nitrate transport but also increased the membrane electrical resistance. The selectivity of nitrate was found to be independent of the membrane thickness and mainly driven by the increased affinity between the anion and the membrane.
Article
Engineering, Chemical
Umar Noor, Muhammad Fayyaz Farid, Ammara Sharif, Amna Saleem, Zubair Nabi, Muhammad Furqan Mughal, Kiran Abbas, Toheed Ahmed
Summary: Global water scarcity is increasing, and water desalination is an important solution. Multifunctional advanced materials, such as membrane materials and solar-driven desalination, play a crucial role in water desalination. Additionally, these materials can be used for water purification, wastewater treatment, and pollutant elimination.
Article
Engineering, Chemical
Emrah Gumus
Summary: With growing global concerns about climate change and environmental impacts, the use of nuclear energy in naval vessels offers a cleaner and more efficient solution to reduce emissions and address water and energy supply challenges. This study explores a novel system that combines a nuclear-driven supercritical carbon dioxide power cycle with reverse osmosis cogeneration to meet the water and electricity demands in maritime operations, enhancing the sustainability, efficiency, and self-sufficiency of naval vessels. The results indicate that the system has the potential to be a viable and effective solution for naval operations.
Article
Engineering, Chemical
Dao Thi Thanh Huyen, Saikat Sinha Ray, Young -Nam Kwon
Summary: This study focuses on the modification of a commercially available polyamide thin-film composite membrane with a zwitterionic material to enhance its fouling resistance. The modified membrane shows improved salt rejection and reduced permeability compared to the pristine membrane. Fouling tests demonstrate that the modified membrane has a lower fouling ratio and higher recovery ratio. The enhanced antifouling characteristics are attributed to the improved hydrophilicity resulting from the zwitterionic brushes and the salting-in effect.
Article
Engineering, Chemical
Niklas Koeller, Lukas Mankertz, Selina Finger, Christian J. Linnartz, Matthias Wessling
Summary: This study presents a methodology to scale up Flow-electrode Capacitive Deionization (FCDI) technology from lab-scale to pilot-scale systems. By increasing membrane area and using a stacking approach, the FCDI modules were successfully scaled up and achieved a salt transfer rate comparable to lab-scale systems. This provides a foundation for future assessments of energy demand and economics.
Article
Engineering, Chemical
Mona Gulied, Sifani Zavahir, Tasneem Elmakki, Hyunwoong Park, Guillermo Hijos Gago, Ho Kyong Shon, Dong Suk Han
Summary: This study introduces a novel hybrid system that combines direct contact membrane distillation (DCMD) and electrically switched ion exchange (ESIX) to facilitate seawater reverse osmosis (SWRO) brine enrichment and selective lithium recovery.
Article
Engineering, Chemical
Zhiqiang Zhang, Ruifeng Deng, Jiao Zhang, Lu She, Guangfeng Wei, Renyong Jia, Pengyu Xiang, Siqing Xia
Summary: A transmembrane electro-chemisorption system with authigenic acid and base was developed for enhancing ammonia recovery from strong ammonia wastewater. The system efficiently transformed ammonium into free ammonia, which was then adsorbed and recovered through transmembrane chemisorption. This system yielded pure (NH4)2SO4 product and produced valuable byproducts of pure hydrogen and oxygen. Higher applied voltage resulted in better ammonia recovery.
Article
Engineering, Chemical
Alena Popova, Sandrine Boivin, Takuji Shintani, Takahiro Fujioka
Summary: This study aimed to produce a high-integrity RO membrane by forming a polyamide skin layer on a TE support layer, in order to enhance the integrity of the membrane and improve the microbiological safety of potable water reuse.
Article
Engineering, Chemical
Sanjana Yagnambhatt, Saber Khanmohammadi, Jonathan Maisonneuve
Summary: This study investigates the concept of using heat to enhance reverse osmosis (RO) desalination. The effect of temperature on water permeate flux, specific energy, permeate quality, and applied operating pressures is evaluated using an analytical model. The results suggest that under specific conditions, the tradeoff between savings in mechanical pump work and thermal energy input in thermally-enhanced RO can be favorable, leading to overall energy savings.
Article
Engineering, Chemical
Jiangju Si, Chenrui Xue, Shun Li, Linchao Yang, Weiwei Li, Jie Yang, Jihong Lan, Ningbo Sun
Summary: To meet the huge demand for lithium resources, there is an urgent need to develop a new efficient technology for lithium recovery from salt-lake brines. In this study, a selective membrane capacitive deionization system is reported, which achieves high lithium recovery capacity and rate through the use of materials with efficient intercalated pseudo-capacitance and a high specific area porous carbon. The use of a modified thin-coated membrane allows for selective Li+ recovery, and adjusting the concentrations of Li+ and Mg2+ in the feed solution enables higher Li+/Mg2+ selectivity.
Article
Engineering, Chemical
Mohamed R. Salem, R. Y. Sakr, Ghazy M. R. Assassa, Omar A. Aly
Summary: This research proposes a new method of using wasted thermal energies as an additional heating source for solar still distillation units (SSDUs) to increase productivity and reduce pollution and global warming. By testing two SSDUs, the study shows that heating airflow can raise temperatures, enhance freshwater production, and improve system thermal efficiency.
Article
Engineering, Chemical
Qimeng Sun, Miao Sun, Linyan Yang, Yuan Gao, Xinghai Zhou, Lihua Lyu, Chunyan Wei
Summary: This study presents an innovative design and fabrication of a fabric-based conical roll (FCR) evaporator, which enables low-temperature evaporation and achieves high evaporation efficiency with excellent thermal management ability. The evaporator has demonstrated advanced light-harvesting capability and can produce freshwater that meets drinking water standards, showing great potential for applications in desalination and sewage treatment.
Article
Engineering, Chemical
Yidong Zhang, Wangfang Deng, Meiyan Wu, Chao Liu, Guang Yu, Qiu Cui, Pedram Fatehi, Chunlin Xu, Bin Li
Summary: In this study, a novel polydopamine-functionalized lignin-containing pulp foam evaporator with high-efficiency desalination and multi-contaminant adsorption capabilities was designed. The foam evaporator showed excellent light absorption, water absorption, thermal conductivity, and chelation abilities, allowing for solar evaporation and contaminant adsorption synergistically. It also exhibited potential applications in metal ion concentration and contaminated seawater treatments, and demonstrated superior biodegradability compared to poly-styrene foam. This foam material holds promise for developing multifunctional photo-thermal systems for solar-driven water purification.