Nanofiltration membranes consisting of quaternized polyelectrolyte complex nanoparticles for heavy metal removal

Ye, Chun-Chun; An, Quan‐Fu; Wu, Jia-Kai; Zhao, Faqiong; Zheng, Pei-Yao; Wang, Naixin

doi:10.1016/j.cej.2018.11.085

Cited by 125 publications

(27 citation statements)

References 36 publications

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“…However highly concentrated minerals such as calcium sulphate and carbonate may deposit on the membrane causing so called “scaling” [ 14 ], leading to increased flow resistance, requirement for frequent cleaning, and replacement of membranes. To reduce scaling, more expensive membrane modifications are needed [ 15 ].…”

Section: Discussionmentioning

confidence: 99%

Aquatic Mosses as Adaptable Bio-Filters for Heavy Metal Removal from Contaminated Water

Papadia

Barozzi

Migoni

et al. 2020

IJMS

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Heavy metals (HMs) are released into the environment by many human activities and persist in water even after remediation. The efficient filtration of solubilized HMs is extremely difficult. Phytoremediation appears a convenient tool to remove HMs from polluted water, but it is limited by the choice of plants able to adapt to filtration of polluted water in terms of space and physiological needs. Biomasses are often preferred. Aquatic moss biomasses, thanks to gametophyte characteristics, can act as live filtering material. The potential for phytoremediation of Hypnales aquatic mosses has been poorly investigated compared to aquatic macrophytes. Their potential is usually indicated as a tool for bioindication and environmental monitoring more than for pollutant removal. When phytoremediation has been considered, insufficient attention has been paid to the adaptability of biomasses to different needs. In this study the heavy metal uptake of moss Taxiphyllum barbieri grown in two different light conditions, was tested with high concentrations of elements such as Pb, Cd, Zn, Cu, As, and Cr. This moss produces dense mats with few culture needs. The experimental design confirmed the capacity of the moss to accumulate HMs accordingly to their physiology and then demonstrated that a significant proportion of HMs was accumulated within a few hours. In addition to the biosorption effect, an evident contribution of the active simplistic mass can be evidenced. These reports of HM accumulation within short time intervals, show how this moss is particularly suitable as an adaptable bio-filter, representing a new opportunity for water eco-sustainable remediation.

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Section: Discussionmentioning

confidence: 99%

Aquatic Mosses as Adaptable Bio-Filters for Heavy Metal Removal from Contaminated Water

Papadia

Barozzi

Migoni

et al. 2020

IJMS

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show abstract

“…Photocatalytic hybrid nanomaterials, such as Graphitic carbon nitride (g-C 3 N 4 ) quantum dots (QD) [53] and TNT array [54], are also developed to allow for simultaneous photocatalysis and membrane filtration in efficient wastewater treatment [55]. Figure 4 shows the utilization of several membrane-based technologies in the remediation of water bodies laden with HM ions [56,57,58].…”

Section: Nanomaterials-assisted Approach For Heavy Metal Removalmentioning

confidence: 99%

“…Even though there are many ways that membranes are employed to remove HM, including surface charged membranes for HM ion repellent, membrane distillation [59], adsorptive membrane [60], size exclusion removal [57], and more, there are two popular ways where HM can be removed from water bodies using membrane-based remediation, which is size exclusion removal, or using adsorptive membranes [61]. Commonly, membrane works by sieving the molecules according to size.…”

Section: Nanomaterials-assisted Approach For Heavy Metal Removalmentioning

confidence: 99%

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The Roles of Nanomaterials in Conventional and Emerging Technologies for Heavy Metal Removal: A State-of-the-Art Review

et al. 2019

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Heavy metal (HM) pollution in waterways is a serious threat towards global water security, as high dosages of HM poisoning can significantly harm all living organisms. Researchers have developed promising methods to isolate, separate, or reduce these HMs from water bodies to overcome this. This includes techniques, such as adsorption, photocatalysis, and membrane removal. Nanomaterials play an integral role in all of these remediation techniques. Nanomaterials of different shapes have been atomically designed via various synthesis techniques, such as hydrothermal, wet chemical synthesis, and so on to develop unique nanomaterials with exceptional properties, including high surface area and porosity, modified surface charge, increment in active sites, enhanced photocatalytic efficiency, and improved HM removal selectivity. In this work, a comprehensive review on the role that nanomaterials play in removing HM from waterways. The unique characteristics of the nanomaterials, synthesis technique, and removal principles are presented. A detailed visualisation of HM removal performances and the mechanisms behind this improvement is also detailed. Finally, the future directions for the development of nanomaterials are highlighted.

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“…Membrane separation technology is one of the most promising technologies nowadays for the treatment of industrial wastewater due to its low energy consumption, high efficiency, easy large‐scale adoption and environmentally benign in nature 7 . In nanofiltration (NF) membrane separation technology, which is an intermediate process between ultrafiltration (UF) and reverse osmosis (RO); there are nano‐scale pores and a large number of charges on the surface of NF membrane 8‐10 . This surface charge is highly responsible for efficient removal of heavy metal ions from wastewater via pore sieving and Donna effect 11 .…”

Section: Introductionmentioning

confidence: 99%

Construction of Fe₃O₄@MXene composite nanofiltration membrane for heavy metal ions removal from wastewater

Yang

Liu

Si-xian

et al. 2020

Polymers for Advanced Techs

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Nanofiltration (NF) with adsorptive membrane technologies are one of the most promising methods for the efficient treatment of industrial wastewater having toxic heavy metal ions. The present investigation deals with the fabrication of nanocomposite Fe3O4@MXene membranes by self‐assembly of Fe3O4 nanoparticles (NPs) and two‐dimensional (2D) MXene nanosheets on the surface of cellulose acetate (CA) base membrane. The Fe3O4 NPs were found to be uniformly dispersed on the MXene sheet structure and thus expanded the 2D nanochannel of MXene. The water flux and the removal ratio of heavy metal ions by this nanocomposite membrane were found to improve significantly, compared to the virgin MXene membrane. Under the synergistic effect of layer sieving and the adsorption ability, the composite NF membrane was found to achieve a maximum of 63.2% for Cu2+, 64.1% for Cd2+ and 70.2% for Cr6+ removal from wastewater, respectively. Moreover, Fe3O4@MXene membrane also exhibited good recycling ability after washing by HCl solution.

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Nanofiltration membranes consisting of quaternized polyelectrolyte complex nanoparticles for heavy metal removal

Cited by 125 publications

References 36 publications

Aquatic Mosses as Adaptable Bio-Filters for Heavy Metal Removal from Contaminated Water

Aquatic Mosses as Adaptable Bio-Filters for Heavy Metal Removal from Contaminated Water

The Roles of Nanomaterials in Conventional and Emerging Technologies for Heavy Metal Removal: A State-of-the-Art Review

Construction of Fe₃O₄@MXene composite nanofiltration membrane for heavy metal ions removal from wastewater

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Nanofiltration membranes consisting of quaternized polyelectrolyte complex nanoparticles for heavy metal removal

Cited by 125 publications

References 36 publications

Aquatic Mosses as Adaptable Bio-Filters for Heavy Metal Removal from Contaminated Water

Aquatic Mosses as Adaptable Bio-Filters for Heavy Metal Removal from Contaminated Water

The Roles of Nanomaterials in Conventional and Emerging Technologies for Heavy Metal Removal: A State-of-the-Art Review

Construction of Fe3O4@MXene composite nanofiltration membrane for heavy metal ions removal from wastewater

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Product

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About

Construction of Fe₃O₄@MXene composite nanofiltration membrane for heavy metal ions removal from wastewater