Synthesis of Fe3O4 nanoparticles functionalized polyvinyl alcohol/chitosan magnetic composite hydrogel as an efficient adsorbent for chromium (VI) removal

Yan, Eryun; Cao, Minglu; Ren, Xiqing; Jiang, Jinyu; An, Qinglong; Zhang, Zuoyuan; Gao, Junkai; Yang, Xiaojing; Zhang, Deqing

doi:10.1016/j.jpcs.2018.05.028

Cited by 53 publications

(11 citation statements)

References 16 publications

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“…Low-cost, suitable adsorption capacities for removal dyes and heavy metal ions, regenerating from acid condition, reusability [34] Magnetite nanoparticles Alginate/metal-organic framework Chlorophenoxy acid herbicides high hydrophilicity, large adsorption capacity, enrichment factors range between 27 and 107 [35] Fe 3 O 4 nanoparticles Reduced graphene oxide/polypyrrole nanotube Multi-residue insecticides simultaneous enrichment of different types of insecticides, no matrix effect, high sensitivity, ease of operation [36] Nano γ-Fe 2 O 3 Cationic hydrogel Aromatic pollutants rapid sorption rate (99% dye removal within 5 minutes), 30 cycles, wide pH adsorption range [37] γ-Fe 2 O 3 La 3+ /La(OH) 3 loaded cationic hydrogel Phosphate q max = 90.2±2.9 mg P/g, wide pH adsorption range, easily regenerated, five cycles [38] γ-Fe 2 O 3 Alginate Heat stable salts 3.0 g of composites giving the highest removal of 29.24% in 240 minutes, eight cycles [39] Fe 3 O 4 nanoparticles Gluten/pectin Lake Urmia sediments 62% of the total heavy metal removal rate, 42% of the total organic matter removal rate [40] Iron oxide nanoparticles Alginate Sulfide q max = 136.9 mg g −1 , 98% removal, easily regenerated with calcium chloride solution, five cycles Reprinted with permission. [44] Copyright 2018, Elsevier adsorbents to remove contaminants through electrostatic, ionic exchange or complexation with contaminants such as heavy metal ions. More importantly, the incorporation of MNPs can promote the separation, collection and reuse of hydrogel adsorbents, [42] and also have a positive effect on the adsorption of MHs (Figure 3B-D).…”

Section: Magnetic Additivementioning

confidence: 99%

Multi‐functional magnetic hydrogel: Design strategies and applications

et al. 2021

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Hydrogel is one of the hottest biomaterials in recent years. Especially, magnetic hydrogels (MHs) prepared by combining unique magnetic nanoparticles (MNPs) with hydrogels have attracted wide attention due to their excellent biocompatibility, mechanical properties, absorbability and rich magnetic properties (magnetocaloric, magnetic resonance imaging and intelligent response, etc.).However, the current literature mainly focuses on the application of MHs, without fully understanding the relationship between the design strategies and applications of each function in MHs. This review highlights six major functional properties of MHs, including mechanical properties, adsorption, magnetocaloric effect, magnetic resonance (MR) imaging, intelligent response and biocompatibility. Principles and design strategies of each performance are thoroughly analyzed. Furthermore, the latest applications of MHs in biomedicine, soft actuators, environmental protection, chemistry and engineering in recent 5 years are introduced from the perspective of each function. In the carefully selected representative cases, the design strategies and application principle of multi-functional MHs are detailed, respectively. The classical fabrication processing of MHs is summarized. At last, we discuss the unmet needs and potential future challenges in MHs development and highlight its emerging strategies.

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Section: Magnetic Additivementioning

confidence: 99%

Multi‐functional magnetic hydrogel: Design strategies and applications

et al. 2021

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“…Magnetic injectable hydrogels are an important class of hydrogels that provide useful functionalities such as remote actuation by external magnetic field, hyperthermia effect, antimicrobial properties, targeted and controlled delivery, improved thermal properties and tailorable rheological properties, making them suitable candidates for biomedical applications, especially as drug delivery vehicles [ 16 ]. Magnetic hydrogels have been reported with different magnetic nanoparticles (MNPs) such as γ-Fe 2 O 3 , Fe 3 O 4 , cobalt ferrite (CoFe 2 O 4 ), strontium ferrite (SrFeO19) and so on [ 14 , 17 , 18 , 19 ]. Fe 3 O 4 is a low-cost and abundant MNP with super-paramagnetic and responsive properties, making it a suitable candidate for preparation of magnetic injectable hydrogels.…”

Section: Introductionmentioning

confidence: 99%

Effect of Iron-Oxide Nanoparticles Impregnated Bacterial Cellulose on Overall Properties of Alginate/Casein Hydrogels: Potential Injectable Biomaterial for Wound Healing Applications

et al. 2020

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In this study we report the preparation of novel multicomponent hydrogels as potential biomaterials for injectable hydrogels comprised of alginate, casein and bacterial cellulose impregnated with iron nanoparticles (BCF). These hydrogels demonstrated amide cross-linking of alginate–casein, ionic cross-linking of alginate and supramolecular interaction due to incorporation of BCF. Incorporation of BCF into the hydrogels based on natural biopolymers was done to reinforce the hydrogels and impart magnetic properties critical for targeted drug delivery. This study aimed to improve overall properties of alginate/casein hydrogels by varying the BCF loading. The physico-chemical properties of gels were characterized via FTIR, XRD, DSC, TGA, VSM and mechanical compression. In addition, swelling, drug release, antibacterial activity and cytotoxicity studies were also conducted on these hydrogels. The results indicated that incorporation of BCF in alginate/casein hydrogels led to mechanically stronger gels with magnetic properties, increased porosity and hence increased swelling. A porous structure, which is essential for migration of cells and biomolecule transportation, was confirmed from microscopic analysis. The porous internal structure promoted cell viability, which was confirmed through MTT assay of fibroblasts. Moreover, a hydrogel can be useful for the delivery of essential drugs or biomolecules in a sustained manner for longer durations. These hydrogels are porous, cell viable and possess mechanical properties that match closely to the native tissue. Collectively, these hybrid alginate–casein hydrogels laden with BCF can be fabricated by a facile approach for potential wound healing applications.

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“…These results can be explained as follows. Below pH <3.9, the adsorbent surface containing amine and hydroxyl groups became protonated with increasing H + to (NH 3 + , OH 2 + ) and form a positively surface charge . These positives charges exerts a strong electrostatic attraction with the anionic species of Cr (VI) present in the solution resulting on an efficient adsorption capacity of HCrO 4 − ions which is the dominant form at pH 3.0.…”

Section: Resultsmentioning

confidence: 99%

Synthesis of amidoximated polyacrylonitrile fibers and its use as adsorbent for Cr (VI) ions removal from aqueous solutions

Bouchoum

Benmoussa

Jada

et al. 2019

Env Prog and Sustain Energy

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Functionalized fibers, especially polyacrylonitrile fibers (PANF), have attracted wide interest as an effective and economical material for environment and water protection. In this study, polyacrylonitrile fibers modified with hydroxylamine hydrochloride were used as an adsorbent to remove hexavalent chromium ions from aqueous solutions. The novelty of the present study compared to the literature is the functionalization of polyacrylonitrile fibers surface by optimizing cost and energy while achieving a yield fast removal rate and high adsorption capacity of hexavalent chromium from aqueous solutions. The amidoximated polyacrylonitrile fibers were characterized using Fourier Transform InfraRed spectroscopy (FTIR) and Scanning Electron Microscopy (SEM). The results confirmed the success of polyacrylonitrile fibers modification. The adsorption capacity was evaluated by investigating the effect of initial pH solution ranging from 2.0 to 7.0, the adsorbent dose varied from 0.05 to 0.25 g, the initial Cr (VI) concentration range was (5–70 mg g−1), the temperature varied from 5 to 60°C, and the contact time ranged from 0 to 180 min. We have used the Langmuir and Freundlich adsorption models to describe the equilibrium sorption data. The maximum adsorption capacity estimated using the Langmuir model reached 32. 57 mg g−1 under optimal conditions. The thermodynamic parameters (ΔG, ΔH, and ΔS) were also determined. In addition, the adsorbent showed a desorption rate of Cr (VI) up to 92% with 0.5 mol of NaOH, which can be reused for three adsorption–desorption cycles. The overall data showed the efficiency of amidoximated polyacrylonitrile fibers in removing Cr (VI) from aqueous solutions. © 2019 American Institute of Chemical Engineers Environ Prog, 38:e13146, 2019

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Synthesis of Fe3O4 nanoparticles functionalized polyvinyl alcohol/chitosan magnetic composite hydrogel as an efficient adsorbent for chromium (VI) removal

Cited by 53 publications

References 16 publications

Multi‐functional magnetic hydrogel: Design strategies and applications

Multi‐functional magnetic hydrogel: Design strategies and applications

Effect of Iron-Oxide Nanoparticles Impregnated Bacterial Cellulose on Overall Properties of Alginate/Casein Hydrogels: Potential Injectable Biomaterial for Wound Healing Applications

Synthesis of amidoximated polyacrylonitrile fibers and its use as adsorbent for Cr (VI) ions removal from aqueous solutions

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