Glutaraldehyde cross-linked CDA/HBP-NH<sub>2</sub>nanofiber membrane for adsorption of heavy metal ions in wastewater

Zang, Chuanfeng; Han, Xiangye; Erying, Dong; Feiyu, Shen; Yan, Tingting; Runyue, Wang; Zhang, Guangyu

doi:10.1039/d1ra06156a

RSC Adv.

2021

DOI: 10.1039/d1ra06156a

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Glutaraldehyde cross-linked CDA/HBP-NH₂nanofiber membrane for adsorption of heavy metal ions in wastewater

Chuanfeng Zang

Xiangye Han

Dong Erying³

et al.

Abstract: A new type of nanofiber membrane was prepared by mixed electrospinning of cellulose diacetate and amino-terminated hyperbranched polymer (HBP-NH2), and glutaraldehyde (GA) crosslinking was used to improve its water resistance and shape retention.

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“…Specically, the addition of FA may cause the protonation of PMCs, which may be conducive to the strong adsorption effect for the anionic metabolites. 34,35 However, the low pH of the enrichment solution may affect the hydrogen bonding between the PMCs and anionic metabolites. Factoring in the results, the optimal FA proportion is 0.5 vol&.…”

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confidence: 99%

Polyurea-magnetic hierarchical porous composites for profiling of anionic metabolites

Zhang,

Lai,

Tian

et al. 2023

Anal. Methods

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mentioning

confidence: 99%

Polyurea-magnetic hierarchical porous composites for profiling of anionic metabolites

Zhang,

Lai,

Tian

et al. 2023

Anal. Methods

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Adsorption performance and mechanism of different modified eggshell membranes for Ni(II) in aqueous solutions

Chen,

Ji,

Huang

et al. 2024

Biomass Conv. Bioref.

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Plasma Tailoring of NH₂-MIL-53 with Enhanced Fluorescence Emission for Simultaneous Detection of Multiple Heavy Metals in Water

Ding,

Hu,

Zhao

et al. 2024

ACS Appl. Mater. Interfaces

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Indium, copper, and mercury are important raw materials in the electronics industry and often coexist in factory wastewater. Therefore, the development of a highly sensitive and selective method for the simultaneous detection of these heavy metal ions is of great significance for water quality monitoring and environmental protection. Herein, we report a NH 2 -MIL-53 fluorescent probe for the simultaneous detection of trace In 3+ , Cu 2+ , and Hg 2+ in water. After a low-temperature NH 3 plasma tailoring treatment for grafting electron-donor amine groups, the obtained NH 2 -MIL-53-M exhibited enhanced fluorescence emission intensity (∼6 times) coupled with selective adsorption of In 3+ , Cu 2+ , and Hg 2+ . This quenched the NH 2 -MIL-53-M fluorescence and allowed to significantly increase the selectivity and sensitivity for detection of In 3+ , Cu 2+ , and Hg 2+ . The fluorescence quenching constant (K sv ) values were 2.23 × 10 5 , 1.00 × 10 5 , and 2.74 × 10 4 M −1 , while the limit of detection (LODs) values were 0.06, 0.14, and 0.53 μM, for In 3+ , Cu 2+ , and Hg 2+ , respectively. The concentrations of In 3+ , Cu 2+ , and Hg 2+ in real environmental samples could be determined by addition of appropriate masking agents, and the recoveries were within the range of 94−110%. This study not only supplied a strategy for constructing a highly sensitive and selective fluorescent probe but also established a platform for simultaneous detection of multiple heavy metal ions in water.

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Glutaraldehyde cross-linked CDA/HBP-NH₂nanofiber membrane for adsorption of heavy metal ions in wastewater

Abstract: A new type of nanofiber membrane was prepared by mixed electrospinning of cellulose diacetate and amino-terminated hyperbranched polymer (HBP-NH2), and glutaraldehyde (GA) crosslinking was used to improve its water resistance and shape retention.

Cited by 3 publications

References 29 publications

Polyurea-magnetic hierarchical porous composites for profiling of anionic metabolites

Polyurea-magnetic hierarchical porous composites for profiling of anionic metabolites

Adsorption performance and mechanism of different modified eggshell membranes for Ni(II) in aqueous solutions

Plasma Tailoring of NH₂-MIL-53 with Enhanced Fluorescence Emission for Simultaneous Detection of Multiple Heavy Metals in Water

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Product

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Glutaraldehyde cross-linked CDA/HBP-NH2nanofiber membrane for adsorption of heavy metal ions in wastewater

Abstract: A new type of nanofiber membrane was prepared by mixed electrospinning of cellulose diacetate and amino-terminated hyperbranched polymer (HBP-NH2), and glutaraldehyde (GA) crosslinking was used to improve its water resistance and shape retention.

Cited by 3 publications

References 29 publications

Polyurea-magnetic hierarchical porous composites for profiling of anionic metabolites

Polyurea-magnetic hierarchical porous composites for profiling of anionic metabolites

Adsorption performance and mechanism of different modified eggshell membranes for Ni(II) in aqueous solutions

Plasma Tailoring of NH2-MIL-53 with Enhanced Fluorescence Emission for Simultaneous Detection of Multiple Heavy Metals in Water

Contact Info

Product

Resources

About

Glutaraldehyde cross-linked CDA/HBP-NH₂nanofiber membrane for adsorption of heavy metal ions in wastewater

Plasma Tailoring of NH₂-MIL-53 with Enhanced Fluorescence Emission for Simultaneous Detection of Multiple Heavy Metals in Water