Polyethylenimine grafted H2O2-oxidized cellulose membrane as a novel biosorbent for Cr(VI) adsorption and detoxification from aqueous solution

Zhang, Shengli; Chen, Haoyu; Zhang, Silue; Kai, Chengcheng; Jiang, Man; Wang, Qun; Zhou, Zuowan

doi:10.1007/s10570-019-02325-z

Cited by 35 publications

(17 citation statements)

References 62 publications

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“…Similarly, the two peaks at 578.4 and 576.2 eV represent Cr(VI) and Cr(III), respectively, obtained by deconvolution of the peak of Cr2p3/2. [ 39 ] The presence of Cr(III) and Cr(VI) indicates that SCP‐8 removal of Cr(VI) involves adsorption and reduction processes. Compared Figure 8D with Figure 8C, a new peak at 400.6 eV binding energy can be attributed to the protonated amine group (NH 3+ ).…”

Section: Resultsmentioning

confidence: 99%

Mechanically robust sodium alginate/cellulose nanofibers/polyethyleneimine composite aerogel for effective removal of hexavalent chromium and anionic dyes

Xie

Zou

Wang

et al. 2022

Polymer Engineering & Sci

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To improve the mechanical properties and adsorption capacity of sodium alginate aerogel (SA), cellulose nanofibers were used as reinforcing fillers, and polyethyleneimine (PEI) was used as a crosslinker to reinforce the SA aerogel. Moreover, PEI provided functional groups to adsorb Cr(VI) and anionic dyes (Congo red [CR] and Methyl orange [MO]) through electrostatic and coordination action. The biomass aerogel adsorption materials were characterized by Fourier transform infrared spectroscopy, scanning electron microscope, energy dispersive spectroscopy, x-ray photoelectron spectroscopy, and so on. The results showed that the maximum adsorption capacity of the composite aerogel adsorbent for Cr(VI), CR, and MO under the optimal pH value was 726. 59, 2007.48, and 2253.38 mg/g, respectively. Langmuir model and quasi-secondorder kinetics can be employed to reasonably describe the adsorption process of Cr(VI) and anionic dyes. Compared with other reported adsorption materials, this biomass composite aerogel has notable advantages such as simple preparation, economical application, high adsorption capacity, convenient recycling, and environmental.

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Section: Resultsmentioning

confidence: 99%

Mechanically robust sodium alginate/cellulose nanofibers/polyethyleneimine composite aerogel for effective removal of hexavalent chromium and anionic dyes

Xie

Zou

Wang

et al. 2022

Polymer Engineering & Sci

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“…To graft PA onto the SNCs successfully, SNCs was first oxidized by hydrogen peroxide (H 2 O 2 ) in this study. [ 22 ] The 2 g of SNCs was added into 100 mL of 0.4% hydrogen peroxide solution, the reaction pH was adjusted to 4, the reaction temperature was 45 ℃ and the time was 1 h. At the end of the reaction, the product was centrifugally washed at 12 000 rpm for three times and freeze‐dried to obtain oxidized starch nanocrystals (OSNCs).…”

Section: Methodsmentioning

confidence: 99%

Starch Nanocrystals Grafted with Epichlorohydrin Dimethylamine for Methyl Blue Dye Removal

et al. 2022

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In this paper, modified starch nanocrystals (SNCs) are prepared successfully by grafting the epichlorohydrin‐dimethylamine copolymer (PA) onto oxidized starch nanocrystals (OSNCs). The material is used as an adsorbent to deal with the methyl blue (MB) dye. The OSNCs‐PA is characterized by Fourier transform infrared spectroscopy, X‐ray diffraction, and Scanning electron microscopy. The zeta potential of OSNCs‐5.0%PA is +46.6 mV, which has a good adsorption performance for MB. In the adsorption process, the effects of adsorption time, pH, and initial MB concentration on the adsorption capacity are studied with the different OSNCs‐PA, and the adsorption kinetics and adsorption isothermal curves are also fitted. The results show that the maximum adsorption capacity of OSNCs‐0.5%PA, OSNCs‐3.0%PA, OSNCs‐5.0%PA on MB could reach 142.86, 166.67, and 169.49 mg g−1, respectively. The adsorption of OSNCs‐PA for MB conform to the second‐order kinetics and the Langmuir adsorption isotherm.

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“…At the same time, the surface of biomass materials is rich in hydroxyl groups and other reactive groups, which can be regulated and functionalized by chemical or physical methods, and are ideal choices for carrier materials (Xu et al 2016), such as cellulose (Park et al 2020, Sharma et al 2018, lignin (Wu et al 2008), hemicellulose (Wei et al 2021), chitosan (Vakili et al 2018, Eliodorio et al 2017, etc. Highly efficient adsorbents were prepared by grafting the cellulose with functional groups (Zhang et al 2019, Xie et al 2017, Liang et al (2020) reported the maximum Cr(VI) uptake was 490.3 mg/g for quaternized cellulose grafted with polyethyleneimine in the presence of epichlorohydrin. The imidazole groups were successfully grafted onto the macroporous cellulose by a homogeneous method to fabricate 3D macroporous materials with synergistic advantages of cellulose and polyvinylimidazole, and the optimized adsorbent exhibited a fast adsorption rate (0.12 g / (mg/min)) and high adsorption capacity (134 mg/g) (Peng et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Preparation of Cotton Fibers Modified With Aromatic Heterocyclic Compounds and Study of Cr(VI) Adsorption Performance

Huang

Yin

et al. 2021

Preprint

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In order to prepare low-cost and environmentally friendly adsorbent materials for adsorption of heavy metal ion, two kinds of novel modified cottons (C-4-APD and C-2-APZ) were obtained by introducing 4-aminopyridin and 2-aminopyrazine into the surface of degreasing cotton, respectively, and used for the removal of Cr(VI) ions from aqueous solution. The two modified cottons were characterized by Scanning Electron Microscopy (SEM), Fourier Transform Infrared Spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS), which confirmed the amino groups, pyridine groups and pyrazine groups grafted onto the surface of modified cottons. The maximum adsorption capacities of C-4-APD and C-2-APZ were 73.78 mg/g and 61.34 mg/g, respectively, at the optimum pH of 6 and an initial concentration of 200 mg/g. Kinetic and isotherm studies were carried out to investigate the adsorption behavior of the modified cottons on Cr(VI) ions. The results showed that the adsorption of Cr(VI) ions by modified cottons followed a pseudo-second-order kinetic model, the equilibrium data were in good agreement with the Langmuir isotherm model, and electrostatic and chemisorption may be the main adsorption mechanisms. The recovery and reuse of modified cotton were achieved by washing with 2 wt% thiourea-hydrochloric acid solution (0.5 mol/L concentration of HCl), and the adsorption capacities of C-4-APD and C-2-APZ were maintained above 90% and 80%, respectively, after six cycles.

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Polyethylenimine grafted H2O2-oxidized cellulose membrane as a novel biosorbent for Cr(VI) adsorption and detoxification from aqueous solution

Cited by 35 publications

References 62 publications

Mechanically robust sodium alginate/cellulose nanofibers/polyethyleneimine composite aerogel for effective removal of hexavalent chromium and anionic dyes

Mechanically robust sodium alginate/cellulose nanofibers/polyethyleneimine composite aerogel for effective removal of hexavalent chromium and anionic dyes

Starch Nanocrystals Grafted with Epichlorohydrin Dimethylamine for Methyl Blue Dye Removal

Preparation of Cotton Fibers Modified With Aromatic Heterocyclic Compounds and Study of Cr(VI) Adsorption Performance

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