Carboxymethylcellulose hydrogels cross-linked with magnetite nanoparticles for the removal of organic and inorganic pollutants from water

Uva, Marianna; Tambasco, Michael; Grassi, Giacomo; Corsi, Ilaria; Protano, Giuseppe; Atrei, A.

doi:10.1016/j.jece.2017.07.025

Cited by 19 publications

(6 citation statements)

References 37 publications

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“…Hydrogels with good flexibility and water‐storage performance belong to the class of highly promising functional materials. Their high hydrophilicity, water retention, and good biocompatibility endows them with extensive application prospects in biological tissue scaffold, controlled release of drug, adsorption and separation of pollutants, sensors, intelligent soft robots, petroleum engineering, mining engineering, and other fields. However, the traditional hydrogels are brittle.…”

Section: Introductionmentioning

confidence: 99%

Poly(acrylic acid)‐chitosan @ tannic acid double‐network self‐healing hydrogel based on ionic coordination

Zhang

et al. 2020

Polymers for Advanced Techs

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In this work, poly(acrylic) acid-chitosan @ tannic acid-aluminum ion (PAA-CS@TA-Al 3+ ) double-network hydrogel was prepared via prefabrication, blending method, and Al 3+ immersion method. The interaction between chitosan and tannic acid (CS@TA) was analyzed using Fourier transfer infrared spectra and UV-Vis spectra. The UV-Vis spectrum was also used to confirm the formation of ionic coordination in the gel. Then, the possible coordination modes were studied and analyzed. The microscopic pore structure and macroscopic strain behavior of the gel were analyzed using SEM and tensile testing, respectively, which verified that the tensile strength (≈32 KPa) and elongation at break (≈1700%) of the gel primarily resulted from its crosslinking structure. In addition, the gel also demonstrated a good self-healing performance with recovery ≈92.2% at 60 minutes.Hence, the proposed novel self-healing gel can provide inspiration for the preparation of future self-healing gels. K E Y W O R D Schitosan, double-network hydrogel, ionic coordination, self-healing, tannic acid

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Section: Introductionmentioning

confidence: 99%

Poly(acrylic acid)‐chitosan @ tannic acid double‐network self‐healing hydrogel based on ionic coordination

Zhang

et al. 2020

Polymers for Advanced Techs

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“…Hence, this work is focused on combining HAP with biopolymers to develop more versatile and stronger filter materials. 15−19 In addition to being nontoxic, natural biopolymers such as chitosan, 20−23 cellulose, 24 carboxymethyl cellulose, 25,26 sodium alginate, 27 lignin, 28 pectin, 29 and gelatin 30,31 have chelating properties. Several studies have explored the sorption properties of HAP biopolymer composites for contaminants including Pb(II), Cd(II), As(V), and F − .…”

Section: Introductionmentioning

confidence: 99%

“…In addition to being nontoxic, natural biopolymers such as chitosan, − cellulose, carboxymethyl cellulose, , sodium alginate, lignin, pectin, and gelatin , have chelating properties. Several studies have explored the sorption properties of HAP biopolymer composites for contaminants including Pb(II), Cd(II), As(V), and F – . − ,,− The properties of these composites vary depending on the synthesis method and the conditions applied in the adsorption studies.…”

Section: Introductionmentioning

confidence: 99%

Biopolymer-Based Nanohydroxyapatite Composites for the Removal of Fluoride, Lead, Cadmium, and Arsenic from Water

et al. 2021

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In this study, hydroxyapatite (HAP) nanocomposites were prepared with chitosan (HAP-CTS), carboxymethyl cellulose (HAP-CMC), alginate (HAP-ALG), and gelatin (HAP-GEL) using a simple wet chemical in situ precipitation method. The synthesized materials were characterized using scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray diffraction, Brunauer−Emmett−Teller surface area analysis, and thermogravimetric analysis. This revealed the successful synthesis of composites with varied morphologies. The adsorption abilities of the materials toward Pb(II), Cd(II), F − , and As(V) were explored, and HAP-CTS was found to have versatile adsorption properties for all of the ions, across a wide range of concentrations and pH values, and in the presence of common ions found in groundwater. Additionally, X-ray photoelectron spectroscopy and energydispersive X-ray spectroscopy confirmed the affinity of HAP-CTS toward multi-ion mixture containing all four ions. HAP-CTS was hence engineered into a more user-friendly form, which can be used to form filters through its combination with cotton and granular activated carbon. A gravity filtration study indicates that the powder form of HAP-CTS is the best sorbent, with the highest breakthrough capacity of 3000, 3000, 2600, and 2000 mL/g for Pb(II), Cd(II), As(V), and F − , respectively. Hence, we propose that HAP-CTS could be a versatile sorbent material for use in water purification.

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“…Magnetic iron oxide nanocomposites with carboxymethyl cellulose (CMC) due to the special ability of CMC to change the surface of magnetic nanoparticles have attracted attentions. They have been studied in the elimination of cancer cells, diagnosis of liver cancer by magnetic resonance imaging (MRI), targeted drug delivery system in medicine and removal of organic and inorganic pollutants from water in the environment [13][14][15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

“…Modified co-precipitation synthetic pathways were successfully employed to prepare CMC-conjugated Fe3O4 nanoparticles by Habibi et al [19]. The CMC-Fe3O4 hydrogel have been studied for the removal of organic and inorganic pollutants and its capability to adsorb both MB and Cd (II) in deionized water was shown [20]. In other work, Fe3O4 magnetic nanoparticles were coated with carboxymethyl cellulose prepared by co-precipitating method and their application in MRI were studied [16].…”

Section: Introductionmentioning

confidence: 99%

Improvement of Magnetic Property of CMC/Fe3O4 Nanocomposite by Applying External Magnetic Field During Synthesis

2020

Chem. Methodol.

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In this paper, magnetic nanocomposites were synthesized by embedding ferric oxide nanoparticles into carboxymethyl cellulose (CMC) using coprecipitation method. The properties of the synthesized nanocomposites in the presence of magnetic field were compared to the synthesized nanocomposite in normal condition. The magnetic properties of the nanocomposites were studied by a vibrational sampling magnetometer (VSM) to investigate the effect of the magnetic field on the magnetic properties. The results showed that the presence of magnetic field during the synthesizing, increased the saturation magnetization about 51%. X-ray diffraction (XRD) analysis confirmed the crystallinity of all samples. The SEM images revealed the nanoparticles homogenous dispersing in the composites. Infrared Fourier spectroscopy (FTIR) results confirmed the formation of iron oxide bonds in all samples. The increase of saturation magnetization can be attributed to the magnetic moment alignments by the magnetic field. Magnetic nanocomposites with higher magnetic properties can further develop their application.

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Carboxymethylcellulose hydrogels cross-linked with magnetite nanoparticles for the removal of organic and inorganic pollutants from water

Cited by 19 publications

References 37 publications

Poly(acrylic acid)‐chitosan @ tannic acid double‐network self‐healing hydrogel based on ionic coordination

Poly(acrylic acid)‐chitosan @ tannic acid double‐network self‐healing hydrogel based on ionic coordination

Biopolymer-Based Nanohydroxyapatite Composites for the Removal of Fluoride, Lead, Cadmium, and Arsenic from Water

Improvement of Magnetic Property of CMC/Fe3O4 Nanocomposite by Applying External Magnetic Field During Synthesis

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