Fast and efficient removal of copper using sandwich-like graphene oxide composite imprinted materials

Kong, Delong; Qiao, Ning; Liu, Huan; Du, Jian; Wang, Nian; Zhou, Zhiyong

doi:10.1016/j.cej.2017.05.140

Cited by 44 publications

(28 citation statements)

References 39 publications

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“…Kong et al [28] developed copper (II)-imprinted polymeric materials employing graphene oxide, acrylamide, and ethylene glycol dimethacrylate in the presence of copper (II) ions. After the characterization analysis, they investigated optimum condition to maximum copper (II) adsorption.…”

Section: Removal Of Metal Ions With Imprinted Materialsmentioning

confidence: 99%

Molecularly Imprinted Polymers for Removal of Metal Ions: An Alternative Treatment Method

et al. 2018

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Aquatic and terrestrial environment and human health have been seriously threatened with the release of metal-containing wastewater by the rapid growth in the industry. There are various methods which have been used for removal of ions from the environment, such as membrane filtration, ion exchange, membrane assisted liquid extraction and adsorption. As a sort of special innovation, a polymerization technique, namely molecular imprinting is carried out by specific identification for the target by mixing it with a functional monomer. After the polymerization occurred, the target ion can be removed with suitable methods. At the end of this process, specific cavities, namely binding sites, are able to recognize target ions selectively. However, the selectivity of the molecularly imprinted polymer is variable not only because of the type of ligand but also charge, size coordination number, and geometry of the target ion. In this review, metal ion-imprinted polymeric materials that can be applied for metal ion removal from different sources are discussed and exemplified briefly with different metal ions.

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Section: Removal Of Metal Ions With Imprinted Materialsmentioning

confidence: 99%

Molecularly Imprinted Polymers for Removal of Metal Ions: An Alternative Treatment Method

et al. 2018

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“…In addition to this, the peaks at 1244 and 840 cm −1 could be ascribed to the presence of C−N stretch and N−H wagging of the primary and secondary groups of TETA, respectively. 13 The peak at 1729 cm −1 in the final IIP is sharpened due to the presence of stretching vibrations of the −CO group in EGDMA. The decorated Fe 3 O 4 nanoparticles were represented by the Fe−O band at 586 cm −1 .…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…12 Ren et al synthesized graphene oxide (GO)-based IIPs for Cu removal with 132 mg g −1 capacity. 13 In recent years, graphene oxide (GO) has been at the forefront in the field of surface imprinting and has a plethora of features for removal of ions due to its exceptional surface properties, for instance, all carbon atoms exhibit oxygen functionalities on either side of its layered structure. These groups, through sharing of their lone pair electrons, form a coordinate bond with the metal ions, thereby enabling fast metal ion sorption and elution.…”

Section: ■ Introductionmentioning

confidence: 99%

“…After a literature survey on porogen, we selected a combination of methanol/acetonitrile (3:1), keeping in mind the solubility of all components as well as not to harm the properties of GO. 13,23 Sampling and Pretreatment. Electroplating industry wastewater was collected from an area near to a local nickel electroplating industry (Aligarh, India), filtered via a membrane filter (Millipore) of 0.45 μm pore size, followed by acidification (concentrated HNO 3 ), and stored in clean vials.…”

Section: ■ Introductionmentioning

confidence: 99%

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Triethylenetetramine-Grafted Magnetite Graphene Oxide-Based Surface-Imprinted Polymer for the Adsorption of Ni(II) in Food Samples

et al. 2020

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In this work, a hydrophilic sandwich-like graphene oxide (GO) ion-imprinted polymer (IIP) was synthesized via the surface imprinting technique to develop a dispersive magnetic solid-phase extraction method for the preconcentration of Ni(II) by flame atomic absorption spectrometry (FAAS). In this imprinted polymer, allyl-rich amines (monomer) and ethylene glycol dimethacrylate (EGDMA) (cross-linker) act as platforms for Ni(II) recognition. Most importantly, the influence of other transition metals as well as alkali/alkaline earth metals in the samples was evaluated to compare the imprinting effect between IIP and nonimprinted polymer (NIP) as a control. The IIP for Ni(II) in a binary mixture provides >99% recovery with a good selectivity coefficient, whereas NIP could not recognize a specific metal ion from competitive ions due to the absence of imprinting effect. Moreover, the introduced specific binding sites with complementary shapes and sizes for Ni(II) recognition in IIP exhibited high adsorption capacity as compared to NIP and fast chemical kinetics with a pseudo-second-order model. The ease of separation from aqueous solutions by an external magnet is facilitated due to embedded Fe 3 O 4 nanoparticles. By utilizing nonlinearized isotherm modeling, two-parameter models (Langmuir, Freundlich, and Dubinin−Radushkevich) and three-parameter models (Redlich− Peterson and Sips) were analyzed with error analysis (reduced χ 2 , residual root-mean-square error (RMSE), and sum squares error (SSE)). Additionally, the structural modifications of GO were examined by Fourier-transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), thermogravimetric analysis (TGA), and atomic force microscopy (AFM). No significant difference was found in FTIR spectra of IIP and NIP. Accuracy was presented by SRM and recovery studies. The synthesized sorbent possesses high recognition ability even after seven regeneration cycles, illustrating potential applications for Ni(II) determination in various food and water samples.

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“…In addition to the extraction method, adsorbents with high mass transfer rates and high adsorption capacities can accelerate the adsorption and desorption, thereby decreasing the sample preparation time [ 26 , 27 ]. Conventional adsorbents such as C 8 , C 18 , silica, and Al 2 O 3 cannot meet the requirements of sample preparation because of a single adsorption interaction, low mass transfer rate, and low adsorption capacity.…”

Section: Introductionmentioning

confidence: 99%

Analysis of anticancer compound, indole-3-carbinol, in broccoli using a new ultrasound-assisted dispersive-filter extraction method based on poly(deep eutectic solvent)-graphene oxide nanocomposite

Yuan

Chen

Han

et al. 2022

Journal of Pharmaceutical Analysis

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Fast and efficient removal of copper using sandwich-like graphene oxide composite imprinted materials

Cited by 44 publications

References 39 publications

Molecularly Imprinted Polymers for Removal of Metal Ions: An Alternative Treatment Method

Molecularly Imprinted Polymers for Removal of Metal Ions: An Alternative Treatment Method

Triethylenetetramine-Grafted Magnetite Graphene Oxide-Based Surface-Imprinted Polymer for the Adsorption of Ni(II) in Food Samples

Analysis of anticancer compound, indole-3-carbinol, in broccoli using a new ultrasound-assisted dispersive-filter extraction method based on poly(deep eutectic solvent)-graphene oxide nanocomposite

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