Removal of Cu2+, Cd2+ and Ni2+ ions from aqueous solution using a novel chitosan/polyvinyl alcohol adsorptive membrane

Sahebjamee, Nadia; Soltanieh, Mohammad; Mousavi, Seyed Mahmoud; Heydarinasab, Amir

doi:10.1016/j.carbpol.2019.01.074

Cited by 93 publications

(26 citation statements)

References 75 publications

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“…Frequency diminution of stretching vibration means formation of hydrogen bonds of chitosan and PVA. Results showed association with previous studies [52,55]. FTIR as well IEC results confirm the presence of cross-links formed by coulombic interactions between the amino groups in chitosan and sulphate ions.…”

Section: Resultssupporting

confidence: 89%

Characterization of a new composite membrane for point of need paper-based micro-scale microbial fuel cell analytical devices

et al. 2019

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Microbial fuel cells (MFCs) can evolve in a viable technology if environmentally sound materials are developed and became available at low cost for these devices. This is especially important not only for the designing of large wastewater treatment systems, but also for the fabrication of low-cost, single-use devices. In this work we synthesized membranes by a simple procedure involving easily-biodegradable and economic materials such as poly (vinyl alcohol) (PVA), chitosan (CS) and the composite PVA:CS. Membranes were chemical and physically characterized and compared to Nafion®. Performance was studied using the membrane as separator in a typical H-Type MFCs showing that PVA:CS membrane outperform Nafion® 4 times (power production) while being 75 times more economic. We found that performance in MFC depends over interactions among several membrane characteristics such as oxygen permeability and ion conductivity. Moreover, we design a paper-based micro-scale MFC, which was used as a toxicity assay using 16 μL samples containing formaldehyde as a model toxicant. The PVA:CS membrane presented here can offer low environmental impact and become a very interesting option for point of need single-use analytical devices, especially in low-income countries where burning is used as disposal method, and toxic fluoride fumes (from Nafion®) can be released to the environment.

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Section: Resultssupporting

confidence: 89%

Characterization of a new composite membrane for point of need paper-based micro-scale microbial fuel cell analytical devices

et al. 2019

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“…For example, a semi-interpenetrating polymer network of crosslinked poly(vinyl alcohol) (PVA)-matrix and PEIcomplexing polymer was employed for the removal of Cu 2+ , Pb 2+ , and Cd 2+ from aqueous solution [53], resulting in an affinity order for this membrane as Pb 2+ > Cu 2+ > Cd 2+ , which was similar with the range of maximum adsorption capacity of the ions per gram of membrane of 0.59, 0.47, and 0.33 m mol g −1 , respectively. Supplementing PEI into a CTS/PVA mixture yields an increase of a large number of amine groups, which led to an increase in adsorption sites and increased its adsorption capacity [54]. The results indicated that the adsorbate removal efficiency of the CTS/PVA membrane with incorporated PEI (0.5 wt.%) was higher than the pristine membrane (40.0%).…”

Section: Applications Of Pmsmentioning

confidence: 97%

“…Thereafter, these values reduced for the second and third cycles, probably due to the reduction of the driving force. Special for CTS/PVA/PEI membranebased PMs [54], use of 0.05 M Na 2 EDTA aqueous solution could regenerate successfully for this membrane led to non-decreasing much in its adsorption efficiency (i.e. : only lesser 5% after four cycles), suggesting its potential values for both stability and reusability of the adsorption for Cd 2+ , Cu 2+ , Ni 2+ ions.…”

Section: Recycling Performance Of Amsmentioning

confidence: 99%

“…CTS/PEG membrane was a pore microstructure with dense and uniform one, the size of this pore structure would be bigger for the higher content of PEG [48]. In another study, CTS/PVA membrane was created with a dense structure and no porosity through casting evaporation method [54]. Thus, it is truly needed to modify the morphological structure of this membrane by the addition of hydrophilic PEI into the casting solution, this modified membrane surface would be less dense due to the improvements of the hydrophilicity of the membrane.…”

Section: Influence Of Morphological Structures Of Amsmentioning

confidence: 99%

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Heavy metal removal applications using adsorptive membranes

et al. 2020

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Water is a significant natural resource for humans. As such, wastewater containing heavy metals is seen as a grave problem for the environment. Currently, adsorption is one of the common methods used for both water purification and wastewater treatment. Adsorption relies on the physical and chemical interactions between heavy metal ions and adsorbents. Adsorptive membranes (AMs) have demonstrated high effectiveness in heavy metal removal from wastewater owing to their exclusive structural properties. This article examines the applications of adsorptive membranes such as polymeric membranes (PMs), polymer-ceramic membranes (PCMs), electrospinning nanofiber membranes (ENMs), and nano-enhanced membranes (NEMs), which demonstrate high selectivity and adsorption capacity for heavy metal ions, as well as both advantages and disadvantages of each one all, are summarized and compared shortly. Moreover, the general theories for both adsorption isotherms and adsorption kinetics are described briefly to comprehend the adsorption process. This work will be valuable to readers in understanding the current applications of various AMs and their mechanisms in heavy metal ion adsorption, as well as the recycling methods in heavy ions desorption process are summarized and described clearly. Besides, the influences of morphological and chemical structures of AMs are presented and described in detail as well.

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“…Furthermore, the inclusion of silver ions into the polymeric matrix has the advantage of improving the antimicrobial effect while maintaining low cytotoxicity. The development of polymer membranes based on chitosan containing silver nanoparticles has been applied in order to remove the different heavy metals (e.g., Fe 2+ , Hg 2+ , Pb 2+ , Cu 2+ , Cd 2+ , Ni 2+ , and Cr 3+ ), for various environmental remediation and water purification applications [ 30 , 31 , 32 , 33 , 34 ].…”

Section: Introductionmentioning

confidence: 99%

Biopolymeric Membrane Enriched with Chitosan and Silver for Metallic Ions Removal

et al. 2020

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The present paper synthesized, characterized, and evaluated the performance of the novel biopolymeric membrane enriched with cellulose acetate and chitosan (CHI)-silver (Ag) ions in order to remove iron ion from the synthetic wastewater using a new electrodialysis system. The prepared membranes were characterized by Fourier Transforms Infrared Spectroscopy-Attenuated Total Reflection (FTIR-ATR), Thermal Gravimetric Analysis (TGA) and Differential Thermal Analysis (DSC), contact angle measurements, microscopy studies, and electrochemical impedance spectroscopy (EIS). The electrodialysis experiments were performed at the different applied voltages (5, 10, and 15 V) for one hour, at room temperature. The treatment rate (TE) of iron ions, current efficiency (IE), and energy consumption (Wc) were calculated. FTIR-ATR spectra evidenced that incorporation of CHI-Ag ions into the polymer mixture led to a polymer-metal ion complex formation within the membrane. The TGA-DSC analysis for the obtained biopolymeric membranes showed excellent thermal stability (>350 °C). The contact angle measurements demonstrated the hydrophobic character of the polymeric membrane and a decrease of it by CHI-Ag adding. The EIS results indicated that the silver ions induced a higher ionic electrical conductivity. The highest value of the iron ions treatment rate (>60%) was obtained for the biopolymeric membrane with CHI-Ag ions at applied voltage of 15 V.

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Removal of Cu2+, Cd2+ and Ni2+ ions from aqueous solution using a novel chitosan/polyvinyl alcohol adsorptive membrane

Cited by 93 publications

References 75 publications

Characterization of a new composite membrane for point of need paper-based micro-scale microbial fuel cell analytical devices

Characterization of a new composite membrane for point of need paper-based micro-scale microbial fuel cell analytical devices

Heavy metal removal applications using adsorptive membranes

Biopolymeric Membrane Enriched with Chitosan and Silver for Metallic Ions Removal

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