Fabrication of cellulose@Mg(OH)2 composite filter via interfacial bonding and its trapping effect for heavy metal ions

Zhao, Nian-Dan; Wang, Yan; Zou, Xiao‐Hang; Yin, Wei-Ming; Wang, Xinyu; Guo, Yuan‐Ru; Pan, Qing‐Jiang

doi:10.1016/j.cej.2021.130812

Cited by 29 publications

(6 citation statements)

References 73 publications

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“…All the samples showed the similar general patterns seen in Figure 1 a. The diffraction peak located at 2θ of 20.0° is the characteristic peak of polyvinyl alcohol (PVA), and the peak appearing at 22.7° belongs to the (002) diffraction plane of cellulose [ 44 ]. The diffraction peaks at 31.8°, 34.4° and 36.…”

Section: Resultsmentioning

confidence: 95%

An Active Bio-Based Food Packaging Material of ZnO@Plant Polyphenols/Cellulose/Polyvinyl Alcohol: DESIGN, Characterization and Application

Song

Pang

et al. 2023

IJMS

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Active packaging materials protect food from deterioration and extend its shelf life. In the quest to design intriguing packaging materials, biocomposite ZnO/plant polyphenols/cellulose/polyvinyl alcohol (ZnPCP) was prepared via simple hydrothermal and casting methods. The structure and morphology of the composite were fully analyzed using XRD, FTIR, SEM and XPS. The ZnO particles, plant polyphenols (PPL) and cellulose were found to be dispersed in PVA. All of these components share their unique functions with the composite’s properties. This study shows that PPL in the composite not only improves the ZnO dispersivity in PVA as a crosslinker, but also enhances the water barrier of PVA. The ZnO, PPL and cellulose work together, enabling the biocomposite to perform as a good food packaging material with only a 1% dosage of the three components in PVA. The light shielding investigation showed that ZnPCP−10 can block almost 100% of both UV and visible light. The antibacterial activities were evaluated by Gram-negative Escherichia coli (E. coli) and Gram-positive staphylococcus aureus (S. aureus), with 4.4 and 6.3 mm inhibition zones, respectively, being achieved by ZnPCP−10. The enhanced performance and easy degradation enables the biocomposite ZnPCP to be a prospect material in the packaging industry.

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Section: Resultsmentioning

confidence: 95%

An Active Bio-Based Food Packaging Material of ZnO@Plant Polyphenols/Cellulose/Polyvinyl Alcohol: DESIGN, Characterization and Application

Song

Pang

et al. 2023

IJMS

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“…The adsorption kinetics were described using the pseudo-first-order and pseudo-second-order models, corresponding to eqs and , respectively. The adsorption isotherm was usually expressed with the Langmuir or Freundlich model, having eqs and , respectively. − q e = c 0 − c t m × V Here, q e (mg·g –1 ) denotes the adsorption capacity in equilibrium, c 0 and c t are the initial and final concentrations (mg·L –1 ), respectively, and m (g) and V (L) represent the mass of the adsorbent and the volume of the solution, respectively. q t = q e ( 1 − e − k 1 t ) t q t = 1 k 2 q e 2 + t q normale Here, q t (mg·g –1 ) and q e (mg·g –1 ) are the adsorption amount versus time t (min) and at equilibrium; k 1 (min –1 ) and k 2 (g·mg –1 ·min –1 ) represent the rate constants of the pseudo-first-order and pseudo-second-order models, respectively. c normale q normale = 1 K L q max + c normale q max ln nobreak0em0.25em⁡ q e = ln nobreak0em0.25em⁡ K F + 1 n…”

Section: Methodsmentioning

confidence: 99%

“…The adsorption isotherm was usually expressed with the Langmuir or Freundlich model, having eqs 4 and 5 , respectively. 42 − 45 Here, q e (mg·g –1 ) denotes the adsorption capacity in equilibrium, c 0 and c t are the initial and final concentrations (mg·L –1 ), respectively, and m (g) and V (L) represent the mass of the adsorbent and the volume of the solution, respectively. Here, q t (mg·g –1 ) and q e (mg·g –1 ) are the adsorption amount versus time t (min) and at equilibrium; k 1 (min –1 ) and k 2 (g·mg –1 ·min –1 ) represent the rate constants of the pseudo-first-order and pseudo-second-order models, respectively.…”

Section: Methodsmentioning

confidence: 99%

Carboxymethyl Cellulose/Polyacrylamide/Fe₃O₄ Magnetic Ion Imprinting Biosorbent for Removal and Recovery of La³⁺

Wang,

Kong,

et al. 2023

ACS Omega

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To use resources rationally, the recovery and recycling of rare earth (RE) from industrial sewage have attracted a lot of attention. Herein, a polymer adsorbent CMC/PAM/Fe3O4 (CPF) was synthesized from renewable carboxymethyl cellulose (CMC), polyacrylamide (PAM), and Fe3O4 by the template of La3+ using ion imprinting technology. The CPF was characterized with X-ray diffraction (XRD), IR, X-ray photoelectron spectroscopy (XPS), and scanning electron microscope (SEM), and results show that PAM and CMC can crosslink with each other and form copolymers with Fe3O4 particles dispersing in it. The adsorption properties for the template ions La3+ were fully studied. It is found that CPF exhibited good adsorption performance with an adsorption capacity of 34.6 mg·g–1. Cycling experiments show that CPF still has high efficiency even after 5 cycles. Meanwhile, the desorption rate can reach more than 98%. The low wastage and high adsorption/desorption efficiency would enable CPF to be a good candidate adsorbent for removal/recovery of La3+ from industrial sewage.

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“…Modified or composite magnesium hydroxide has been widely used to remove heavy metals from water. Zhao [20] prepared a cellulose@Mg(OH) 2 composite film with excellent heavy metal removal. Rachid [21] synthesized a novel chitosanloaded MgAl-LDH nanocomposite, and its performance in As(V) removal and antimicrobial activity was evaluated.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Magnesium hydroxide Whisker‐encapsulated Carbonized Chitosan and Basic Magnesium Carbonate Composite for Efficient Pb(II) Removal

Gong,

Zhu,

Yao

et al. 2024

ChemistrySelect

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In this study, for magnesium hydroxide adsorbents, hydrothermal doping strategies were used to change their surface and structural properties to enhance adsorption. A novel adsorbent was prepared and used to remove low concentrations (<100 mg ⋅ L−1) of Pb2+ from water. The structure of the adsorbent was characterized a series of characterization methods with X‐ray diffraction, scanning electron microscopy, thermogravimetric analysis, fourier transform infrared spectroscopy, nitrogen adsorption‐desorption isotherms, and X‐ray photoelectron spectroscopy. The results showed that the adsorbent was a whisker composed of magnesium hydroxide, carbonized chitosan and basic magnesium carbonate (BMC@Mg(OH)2/CCS) with a specific surface area of 84.35 m2 ⋅ g−1, much higher than that of pure magnesium hydroxide whisker (37.84 m2/g). The adsorption isotherm, kinetic, and thermodynamic properties of the adsorbent for lead ions were studied in detail by batch adsorption. The Langmuir model fits the adsorption isotherm better, and the adsorption capacity is 416.67 mg ⋅ g−1. The adsorption mechanism, which mainly involves chemical precipitation and ligand chelation, is discussed.

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Fabrication of cellulose@Mg(OH)2 composite filter via interfacial bonding and its trapping effect for heavy metal ions

Cited by 29 publications

References 73 publications

An Active Bio-Based Food Packaging Material of ZnO@Plant Polyphenols/Cellulose/Polyvinyl Alcohol: DESIGN, Characterization and Application

An Active Bio-Based Food Packaging Material of ZnO@Plant Polyphenols/Cellulose/Polyvinyl Alcohol: DESIGN, Characterization and Application

Carboxymethyl Cellulose/Polyacrylamide/Fe₃O₄ Magnetic Ion Imprinting Biosorbent for Removal and Recovery of La³⁺

Synthesis of Magnesium hydroxide Whisker‐encapsulated Carbonized Chitosan and Basic Magnesium Carbonate Composite for Efficient Pb(II) Removal

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Fabrication of cellulose@Mg(OH)2 composite filter via interfacial bonding and its trapping effect for heavy metal ions

Cited by 29 publications

References 73 publications

An Active Bio-Based Food Packaging Material of ZnO@Plant Polyphenols/Cellulose/Polyvinyl Alcohol: DESIGN, Characterization and Application

An Active Bio-Based Food Packaging Material of ZnO@Plant Polyphenols/Cellulose/Polyvinyl Alcohol: DESIGN, Characterization and Application

Carboxymethyl Cellulose/Polyacrylamide/Fe3O4 Magnetic Ion Imprinting Biosorbent for Removal and Recovery of La3+

Synthesis of Magnesium hydroxide Whisker‐encapsulated Carbonized Chitosan and Basic Magnesium Carbonate Composite for Efficient Pb(II) Removal

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Product

Resources

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Carboxymethyl Cellulose/Polyacrylamide/Fe₃O₄ Magnetic Ion Imprinting Biosorbent for Removal and Recovery of La³⁺