Adsorptive removal of Cr 3+ from aqueous solutions using chitosan microfibers immobilized with plant polyphenols as biosorbents with high capacity and selectivity

Zhang, Ting; Wang, Yujia; Kuang, Yiwen; Yang, Renqiang; Ma, Jun; Zhao, Shilin; Liao, Yang; Mao, Hui

doi:10.1016/j.apsusc.2017.02.018

Cited by 27 publications

(13 citation statements)

References 44 publications

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“…Overall, the rejection data obtained with the NF membranes show that they are not appropriate for Cr recovery since the chromium rejection degrees are not sufficient to obtain permeates free of chromium, which can be directly discharged into the surrounding environment of the tannery plant. On the other hand, the SW30 membrane at pH = 3.6 and 1.2 is appropriate to treat the tannery effluent allowing for a direct discharge of the permeate effluent, according to the Algerian legislation [29], into the natural environment via Reghaia Lake.…”

Section: Rejection Performancementioning

confidence: 99%

“…However, this membrane showed poor selectivity (all elements are identically rejected by SW30 membrane) disabling the selective recovery of Cr as required for the re-use of this chemical element. Therefore, in order to address this demand, chitosan modified membranes (cs-PES MF022) were developed by modification of commercial PES microfiltration membranes (0.22 µm) with chitosan aiming to allow for a selective removal of Cr, taking advantage of the high affinity of chitosan to this element [23,29,31].…”

Section: Treatment Of the Synthetic Tannery Effluent With The Chitosan Modified Membranesmentioning

confidence: 99%

“…Chitosan copolymers represent a versatile biomaterial platform for wastewater treatment applications and the separation of toxic metals due to their hydrophilicity, non-toxicity, adsorptivity, biocompatibility and relative availability and amenability to chemical modification [18,24,25]. Chitosan shows adsorption properties [22][23][24][25][26][27][28][29][30][31] ascribed to the presence of amino and hydroxyl groups, which explain their affinity towards metals-e.g., copper, iron, chromium-and their capacity to coordinate with these species [23,26,27,29,31].…”

Section: Introductionmentioning

confidence: 99%

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Tannery Effluent Treatment by Nanofiltration, Reverse Osmosis and Chitosan Modified Membranes

et al. 2020

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The objective of this work is to develop an appropriate technology for environmentally sound membrane-based purification of a tannery effluent assuring, simultaneously, the recovery of chromium, considered as the most hazardous inorganic water pollutant extensively used in leather tanning. A comparison between the permeate fluxes obtained during treatment of a synthetic tannery effluent through nanofiltration (NF270 and NF90 membranes) and reverse osmosis (BW30 and SW30) membranes was first performed. Then, a dedicated polymeric membrane was prepared by coating chitosan (cs) on a polyethersulfone (PES) microfiltration membrane (cs-PES MFO22) support. The resulting membrane was characterized by Fourier Transforms Infrared Spectroscopy Attenuated Total Reflectance (FTIR-ATR), Emission Scanning Electronic Microscopy (SEM) to confirm the process of surface modification and cross-linking of chitosan with glutaraldehyde. This membrane was found to be highly effective for chromium removal (>99%), which was more than eight times higher in reference to monovalent cations (e.g., Na+ and K+) and more than six times higher in reference to the divalent cations (Mg2+ and Ca2+) studied. The reverse osmosis permeate conforms to local Algerian regulations regarding being discharged directly into the natural environment (in this case, Reghaia Lake) or into urban sewers linked to wastewater biological treatment stations. While the SW30 membrane proved to be the most effective for purification of the tannery effluent, the chitosan modified membrane proved to be appropriate for recovery of chromium from the reverse osmosis concentrate.

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Section: Rejection Performancementioning

confidence: 99%

Section: Treatment Of the Synthetic Tannery Effluent With The Chitosan Modified Membranesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Tannery Effluent Treatment by Nanofiltration, Reverse Osmosis and Chitosan Modified Membranes

et al. 2020

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“…A comparison of the adsorption capacity of PAN-TA-3 NFs to some other tannin-based adsorbers is presented in Table 3 [1,46,[48][49][50]. It can be seen that PAN-TA-3 nanofiber adsorbent has a relatively high adsorption capacity for Cr(III) compared to other tannin-based adsorbents, while lower than tannin-based adsorbents for Cr(VI).…”

Section: Adsorption Cyclesmentioning

confidence: 98%

Fabrication of PAN Electrospun Nanofibers Modified by Tannin for Effective Removal of Trace Cr(III) in Organic Complex from Wastewater

Zhang

Xue

et al. 2020

Polymers

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Removal of chromium ions is significant due to their toxicity and harmfulness, however it is very difficult to remove trace Cr(III) complexed with organics because of their strong stability. Herein, a novel electrospun polyacrylonitrile (PAN) nanofibers (NF) adsorbent was fabricated and modified by tannic acid (TA) by a facile blend electrospinning approach for removal of trace Cr(III) in an organic complex. Utilizing the large specific area of nanofibers in the membrane and the good affinity of tannic acid on the nanofibers for hydrolyzed collagen by hydrophobic and hydrogen bonds, the as-prepared PAN–TA NFM exhibited good adsorption toward Cr(III)-collagen complexes and effective reduction of total organic carbon in tannage wastewater. The maximal adsorption capacity of Cr(III) is 79.48 mg g−1 which was obtained at the pH of 7.0 and initial Cr(III) concentration of 50 mg g−1. Importantly, the batch adsorption could decrease the Cr(III) concentration from 10–20 mg L−1 to under 1.5 mg L−1, which showed great application potential for the disposal of trace metal ions in organic complexes from wastewater.

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“…Polyphenols, extracted from plants, are characterized by the abundant phenolic hydroxyls that are capable of chelating with transition-metal ions, especially for those metal species with d -orbits [24]. Because of the strong chelating ability of phenolic hydroxyls towards transition metals, the polyphenol-based adsorbent showed to be potential and efficient sorbent for the removal of Pb(II) and Cd(II) from aqueous solutions.…”

Section: Introductionmentioning

confidence: 99%

Eco-Efficient Biosorbent Based on Leucaena leucocephala Residues for the Simultaneous Removal of Pb(II) and Cd(II) Ions from Water System: Sorption and Mechanism

Cimá-Mukul

Abdellaoui

Abatal

et al. 2019

Bioinorganic Chemistry and Applications

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Leucaena leucocephala is a potential source of polyphenols widely available in southern Mexico. This work highlights the extraction of polyphenols from Leucaena leucocephala leaves waste (LLEPs) and the evaluation of their efficiency to remove the single and multicomponent Pb(II) and Cd(II) metal ions from aqueous solutions. Batch test conditions were carried out to examine the effects of contact time, initial metal ion concentration, and adsorbent dosage on the biosorption process. The surface textures and the composition of the LLEP biosorbent was characterized using pH of point of zero charge (pHPZC), attenuated total reflectance Fourier transform infrared (ATR-FTIR), and matrix-assisted laser desorption/ionization time of flight (MALDI-TOF) mass spectrometry, respectively. Further analysis using ATR-FTIR after adsorption contact of biosorbent was also investigated. The highest Langmuir saturation monolayer adsorption capacity, qm, for the removal of Pb(II) by LLEPs was obtained as 25.51 and 21.55 mg/g in mono- and bimetal solutions, respectively. The pseudo-second-order model provided the best fit for the kinetic data obtained for the removal of Pb(II), Cd(II), and their mixture, and the k2 values depend on the adsorbent mass. This implied that the chemisorption process might be the mechanism of the solute ions-LLEPs interaction in this study. Furthermore, nearly 100% removal of lead and cadmium individually and 95% of their mixture was found using 0.9 g of LLEPs.

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Adsorptive removal of Cr 3+ from aqueous solutions using chitosan microfibers immobilized with plant polyphenols as biosorbents with high capacity and selectivity

Cited by 27 publications

References 44 publications

Tannery Effluent Treatment by Nanofiltration, Reverse Osmosis and Chitosan Modified Membranes

Tannery Effluent Treatment by Nanofiltration, Reverse Osmosis and Chitosan Modified Membranes

Fabrication of PAN Electrospun Nanofibers Modified by Tannin for Effective Removal of Trace Cr(III) in Organic Complex from Wastewater

Eco-Efficient Biosorbent Based on Leucaena leucocephala Residues for the Simultaneous Removal of Pb(II) and Cd(II) Ions from Water System: Sorption and Mechanism

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