Preparation and characterization of antibacterial polyamine-based cyclophosphazene nanofiltration membranes

Meng, You; Li, Wenqiao; Pan, Ying; Fei, Pengfei; Wang, Hua; Zhang, Wen; Zhi, Lunhao; Meng, Jianqiang

doi:10.1016/j.memsci.2019.117371

Cited by 70 publications

(38 citation statements)

References 44 publications

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“…Accordingly, the dye removal and COD reduction from wastewater prior to release into the water bodies is a necessary action to maintain both the humans and the environment healthy. Conventional wastewater treatment methods such as adsorption [8], nanofiltration [9], and ozonation [10] have been utilized for the removal of organic dyes and to attain reduction in COD levels of the wastewater. Simple operation design, non-sensitivity to pollutants, recyclability, being highly efficient, cost-effective, and lesser waste residuals has made adsorption among the most employed methods [11].…”

Section: Introductionmentioning

confidence: 99%

Cross-Linked Chitosan-Glyoxal/Kaolin Clay Composite: Parametric Optimization for Color Removal and COD Reduction of Remazol Brilliant Blue R Dye

et al. 2021

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Kaolin clay (KN) was employed as an inorganic filler to modify a cross-linked chitosan-glyoxal as Schiff's-based chitosan composite derivative (CTS-GLY). The resulting (CTS-GLY/KN) was found to be a promising composite synthetic biopolymer that can be potentially utilized for color removal as well as COD reduction of an industrial anionic dye (remazol brilliant blue R, RBBR). The surface porosity, crystallinity, morphology, functionality, charge, and amine content of the CTS-GLY/KN were studied using BET, XRD, SEM, FTIR, pHpzc and pH-potentiometric titration analyses, respectively. Response surface methodology-Box-Behnken design (RSM-BBD) was used to optimize the impact of the main input factors on the color removal and COD reduction of RBBR. The adsorptive performance CTS-GLY/KN towards RBBR was well-defined by both Langmuir and Freundlich isotherm models with highest adsorption capacity of 447.1 mg/g at 30 ˚C. This finding reveals that CTS-GLY/KN can be utilized as a promising, feasible, and environmentally friendly composite-biosorbent for color removal and COD reduction of textile dyes from aqueous medium.

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Section: Introductionmentioning

confidence: 99%

Cross-Linked Chitosan-Glyoxal/Kaolin Clay Composite: Parametric Optimization for Color Removal and COD Reduction of Remazol Brilliant Blue R Dye

et al. 2021

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“…Assuming also that the solution is very dilute, the activity coefficient of ion [i] within the pore, to be taken into account inside the membrane by the effective charge density of the membrane, would be equal to 1. Equation (11) then becomes The ion-i rejection (R) is given as follows:…”

Section: Focus On Model Equationsmentioning

confidence: 99%

“…A nanofiltration (NF) membrane is a pressure-driven process exhibiting properties that lie betwixt ultrafiltration (UF) and reverse osmosis (RO) [ 5 ]. NF membranes have proven their effectiveness in several sectors such as water reclamation [ 6 ] and dye separation [ 7 ], heavy metals [ 8 , 9 ], pesticides [ 10 ], viruses and bacteria [ 11 , 12 ], beverages [ 13 ], natural organic matter [ 14 ], food [ 15 ], dairy processing [ 16 ], hardness removing [ 17 ], taste and odors [ 18 ], and even water softening [ 19 ]. Since there are several applications for NF membranes, there is, therefore, a compelling need to understand its separation behavior and how to improve the solute particles’ transport mechanisms through its active selective layer, especially in water desalination.…”

Section: Introductionmentioning

confidence: 99%

Runge–Kutta Numerical Method Followed by Richardson’s Extrapolation for Efficient Ion Rejection Reassessment of a Novel Defect-Free Synthesized Nanofiltration Membrane

et al. 2021

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A defect-free, loose, and strong layer consisting of zirconium (Zr) nanoparticles (NPs) has been successfully established on a polyacrylonitrile (PAN) ultrafiltration substrate by an in-situ formation process. The resulting organic–inorganic nanofiltration (NF) membrane, NF-PANZr, has been accurately characterized not only with regard to its properties but also its structure by the atomic force microscopy, field emission scanning electron microscopy, and energy dispersive spectroscopy. A sophisticated computing model consisting of the Runge–Kutta method followed by Richardson extrapolation was applied in this investigation to solve the extended Nernst–Planck equations, which govern the solute particles’ transport across the active layer of NF-PANZr. A smart, adaptive step-size routine is chosen for this simple and robust method, also known as RK4 (fourth-order Runge–Kutta). The NF-PANZr membrane was less performant toward monovalent ions, and its rejection rate for multivalent ions reached 99.3%. The water flux of the NF-PANZr membrane was as high as 58 L·m−2·h−1. Richardson’s extrapolation was then used to get a better approximation of Cl− and Mg2+ rejection, the relative errors were, respectively, 0.09% and 0.01% for Cl− and Mg2+. While waiting for the rise and expansion of machine learning in the prediction of rejection performance, we strongly recommend the development of better NF models and further validation of existing ones.

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“…This copolymer was first synthesized using a hollow rod-like Mg(OH) 2−x F x sol with the solvothermal method, and was then fabricated to the organic-inorganic hybrid hydrophobic Mg(OH) 2−x F x− MTES copolymer. Furthermore, preparation methods like solvothermal [60,61], photolithography [62], the laser ablation in liquids (LAL) method [63], solvent evaporation [64], interfacial reaction [65], phase inversion [20], spin-coating [66], vapor deposition [67], solution deposition [68], and printing [30] are also widely used.…”

Section: Preparation Of Thin-film Materialsmentioning

confidence: 99%

Degradable and Dissolvable Thin-Film Materials for the Applications of New-Generation Environmental-Friendly Electronic Devices

et al. 2020

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Featured Application: Thin-film materials with degradability and recyclability for the fabrication of degradable, dissolvable, resorbable, and/or compatible electronic devices, especially transient resistive switching devices for security information storage and neuromorphic computing as well as environmental-friendly applications.Abstract: The environmental pollution generated by electronic waste (e-waste), waste-gas, and wastewater restricts the sustainable development of society. Environmental-friendly electronics made of degradable, resorbable, and compatible thin-film materials were utilized and explored, which was beneficial for e-waste dissolution and sustainable development. In this paper, we present a literature review about the development of various degradable and disposable thin-films for electronic applications. The corresponding preparation methods were simply reviewed and one of the most exciting and promising methods was discussed: Printing electronics technology. After a short introduction, detailed applications in the environment sensors and eco-friendly devices based on these degradable and compatible thin-films were mainly reviewed, finalizing with the main conclusions and promising perspectives. Furthermore, the future on these upcoming environmental-friendly electronic devices are proposed and prospected, especially on resistive switching devices, showing great potential applications in artificial intelligence (AI) and the Internet of Thing (IoT). These resistive switching devices combine the functions of storage and computations, which can complement the off-shelf computing based on the von Neumann architecture and advance the development of the AI.

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Preparation and characterization of antibacterial polyamine-based cyclophosphazene nanofiltration membranes

Cited by 70 publications

References 44 publications

Cross-Linked Chitosan-Glyoxal/Kaolin Clay Composite: Parametric Optimization for Color Removal and COD Reduction of Remazol Brilliant Blue R Dye

Cross-Linked Chitosan-Glyoxal/Kaolin Clay Composite: Parametric Optimization for Color Removal and COD Reduction of Remazol Brilliant Blue R Dye

Runge–Kutta Numerical Method Followed by Richardson’s Extrapolation for Efficient Ion Rejection Reassessment of a Novel Defect-Free Synthesized Nanofiltration Membrane

Degradable and Dissolvable Thin-Film Materials for the Applications of New-Generation Environmental-Friendly Electronic Devices

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