Fabrication of high-performance composite nanofiltration membranes for dye wastewater treatment: mussel-inspired layer-by-layer self-assembly

Guo, Dongxue; Xiao, Yirong; Li, Tong; Zhou, Qingfeng; Shen, Liguo; Li, Renjie; Xu, Yanchao; Lin, Hongjun

doi:10.1016/j.jcis.2019.10.078

Cited by 180 publications

(52 citation statements)

References 69 publications

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“…In addition, the dominance of the amorphous region accelerates segmental motion within the polymer backbone that, in turn, increases the ion migration and ion conductivity as investigated by Fan et al [13]. Similarly, Rangasamy et al [8] believed that an increase in the amorphous content of the polymer film results in enhancing ion mobility as a consequence of providing free volume in the polymer network. It also causes an increase in the segmental motion of the polymer chains, leading to an increase in the flexibility of the polymer matrix.…”

Section: Structural Studymentioning

confidence: 94%

“…For example, a poly(vinyl alcohol) (PVA) polymer host is as assumed to be one of the cornerstones for the preparation of various types of polymer electrolytes, because of its capability of dissolving a number of inorganic salts and also its biodegradability [6,7]. On the other hand, composites and natural polyphenols are crucial for membrane separation technology and the treatment of wastewater dyes [8,9]. PVA is mainly composed of vinyl alcohol groups (i.e., enriched with polar oxygen atoms) that can make complexes with the salt cations, thus forming polymer electrolyte complexes.…”

Section: Introductionmentioning

confidence: 99%

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Structural, Morphological, Electrical and Electrochemical Properties of PVA: CS-Based Proton-Conducting Polymer Blend Electrolytes

2020

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Polymer blend electrolytes based on poly(vinyl alcohol):chitosan (PVA:CS) incorporated with various quantities of ammonium iodide were prepared and characterized using a range of electrochemical, structural and microscopic techniques. In the structural analysis, X-ray diffraction (XRD) was used to confirm the buildup of the amorphous phase. To reveal the effect of dopant addition on structural changes, field-emission scanning electron microscope (FESEM) was used. The protrusions of salt aggregates with large quantity were seen at the surface of the formed films at 50 wt.% of the added salt. The nature of the relationship between conductivity and dielectric properties was shown using electrochemical impedance spectroscopy (EIS). The EIS spectra were fitted with electrical equivalent circuits (EECs). It was observed that both dielectric constant and dielectric loss were high in the low-frequency region. For all samples, loss tangent and electric modulus plots were analyzed to become familiar with the relaxation behavior. Linear sweep voltammetry (LSV) and transference number measurement (TNM) were recorded. A relatively high cut-off potential for the polymer electrolyte was obtained at 1.33 V and both values of the transference number for ion (tion) and electronic (telec) showed the ion dominant as charge carrier species. The TNM and LSV measurements indicate the suitability of the samples for energy storage application if their conductivity can be more enhanced.

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Section: Structural Studymentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Structural, Morphological, Electrical and Electrochemical Properties of PVA: CS-Based Proton-Conducting Polymer Blend Electrolytes

2020

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“…Musselinspired adhesive materials such as polydopamine (PDA), tannic acid, and other polyphenols can form coatings with active groups on almost any substrate surface, making these coatings a powerful tool for surface modification. 6,[100][101][102][103][104][105][106][107][108][109][110][111][112] Thanks to the high adhesive ability of PDA, GO nanosheets can be attracted and firmly bound to the surface of substrates, remarkably enhancing the stability of the GO membrane (Fig. 12).…”

Section: Materials Advances Reviewmentioning

confidence: 99%

The stability of a graphene oxide (GO) nanofiltration (NF) membrane in an aqueous environment: progress and challenges

Wang

Guo

et al. 2020

Mater. Adv.

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“…Technologies reported in the literature for either colour or COD removal from dye wastewater are microbial consortia treatment [5], photocatalytic degradation [6], composite nanofiltration [7][8][9], combined process of coagulation/flocculation and nanofiltration [10] and Electronic supplementary material The online version of this article (https ://doi.org/10.1007/s4245 2-020-03657 -3) contains supplementary material, which is available to authorized users. electrochemical treatment [1,2,11].…”

Section: Introductionmentioning

confidence: 99%

“…Chlorine produces due to surface reaction of electrochemical oxidation of chloride ions at the anode according to Eq. (1) to (7) At cathode, water decomposes [3] according to Eq. (3).…”

Section: Introductionmentioning

confidence: 99%

A comparative study for degradation of RB5 dye using Ti/Ir0.15–Ru0.15–Sn0.6–Sb0.1 electrodes fabricated by employing two different thermal decomposition methods

2020

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A comparison of electrochemical degradation efficiency of Ir-and Ru-based mixed metal oxide electrodes fabricated by two different methods, i.e. polymeric precursor thermal decomposition (PPTD) and standard thermal decomposition (STD), was carried out on Reactive Black 5 (RB5) dye. The electrolysis experiments were performed with 100 mg/L RB5 at initial pH 2, a current density 50 mA/cm 2 , and 4 mg/L NaCl dosage. The results of the study were evaluated in terms of reduction in colour, COD, and TOC. The result showed higher RB5 degradation rate constants obtained on the PPTD electrode during kinetic study, compared to the STD electrode. A better performance of the PPTD electrode compared to the STD electrode may be attributed to its higher Sn content and its different morphologies observed in characterization using SEM with EDX analysis. Although proven efficient, the service life of PPTD-coated electrode was found only ~ 76 h, compared to ~ 895 h of STD-coated electrode. Experimental results demonstrated that coating method influenced the performance and service life of the electrodes. A comparison of the MTC, ICE, and energy consumption of the two electrodes prepared by STD and PPTD methods demonstrated that PPTD-coated electrodes were more efficient with a shorter lifespan .

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Fabrication of high-performance composite nanofiltration membranes for dye wastewater treatment: mussel-inspired layer-by-layer self-assembly

Cited by 180 publications

References 69 publications

Structural, Morphological, Electrical and Electrochemical Properties of PVA: CS-Based Proton-Conducting Polymer Blend Electrolytes

Structural, Morphological, Electrical and Electrochemical Properties of PVA: CS-Based Proton-Conducting Polymer Blend Electrolytes

The stability of a graphene oxide (GO) nanofiltration (NF) membrane in an aqueous environment: progress and challenges

A comparative study for degradation of RB5 dye using Ti/Ir0.15–Ru0.15–Sn0.6–Sb0.1 electrodes fabricated by employing two different thermal decomposition methods

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