Water-insoluble sericin/β-cyclodextrin/PVA composite electrospun nanofibers as effective adsorbents towards methylene blue

Zhao, Rui; Wang, Yong; Li, Xiang; Sun, Bolun; Jiang, Ziqiao; Wang, Ce

doi:10.1016/j.colsurfb.2015.09.038

Cited by 107 publications

(54 citation statements)

References 34 publications

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“…Early reports demonstrated that methylene blue (MB), a cationic dye, may induce some detrimental effects on the central nervous system along with neurotoxic symptoms, for example, headache, shiver, vertigo, and mental confusion . Till now, numerous approaches, including photodegradation, adsorption, coagulation, and membrane filtration, have been investigated to eliminate the MB‐based industrial pollutants . Among the mentioned methods, the adsorption is most favored to remove dyes due to many advantages such as its facile operation and high efficiency .…”

Section: Introductionmentioning

confidence: 99%

Enhanced selective adsorption of cation organic dyes on polyvinyl alcohol/agar/maltodextrin water‐resistance biomembrane

Hoang

Nguyen

Bui

et al. 2019

J of Applied Polymer Sci

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In this study, we designed a novel hydrogel composite membrane based on the combination of polyvinyl alcohol (PVA), agar, and maltodextrin through a facile solution‐casting router. From Fourier‐transform infrared spectroscopy, contact angle, scanning electron microscopy, and swelling analyses, the formation of hydrogen bonds between surface functional groups of PVA, agar, and maltodextrin was confirmed. As a result, the PVA/agar/maltodextrin membranes exhibited a more hydrophobic nature compared with pure PVA. The thermal stability and integrity of such obtained composite membranes were also elucidated by the evaluation of thermogravimetric analysis and mechanical behavior. Besides, the composite membrane exhibited high selective adsorption for cationic dyes, namely 20.2 mg g−1 for methylene blue and 19.17 mg g−1 for crystal violet at initial dye concentration of 100 mg/L, an adsorbent dosage of 0.1 g, contact time of 180 min, and solution pH 7, while anionic dyes such as congo red and methyl orange are approximately zero. The adsorption kinetics and isotherm of the as‐prepared composite membranes were well fitted to the pseudo‐second‐order and Temkin model. The effect of factors, including contact time, solution pH, PVA content, and initial dye concentration on the adsorption capacity of the as‐prepared composite membrane was also investigated in detail. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 137, 48904.

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Section: Introductionmentioning

confidence: 99%

Enhanced selective adsorption of cation organic dyes on polyvinyl alcohol/agar/maltodextrin water‐resistance biomembrane

Hoang

Nguyen

Bui

et al. 2019

J of Applied Polymer Sci

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“…27 However, PVA-based adsorbents are commonly blended with other water-insoluble polymers or cross-linked by either chemical or physical methods to form insoluble materials due to its high water solubility. 28,29 Although numerous PVA-based adsorbents have been prepared successfully for removing dyes from wastewater such as molecularly imprinted sericin/PVA, 30 polyaniline/PVA/clinoptilolite composite, 31 alginate/PVA/ kaolin composite, 32 macroreticular (MR)-PVA/attapulgite (ATP) 33 and sericin/β-cyclodextrin/PVA composite, 34 there are few reports about PVA/polyacrylonitrile (PAN) blends polymers. PAN is one of the most favorable binding materials owing to its remarkable physical nature such as chemical stability, solubility in organic solvents, easy pelletizing and strong binding force with organic elements.…”

Section: Encapsulating Tio 2 Into Polyvinyl Alcohol Coated Polyacrylomentioning

confidence: 99%

Encapsulating TiO2 into Polyvinyl Alcohol Coated Polyacrylonitrile Composite Beads for the Effective Removal of Methylene Blue

Han

Jin

Wang

et al. 2018

J. Braz. Chem. Soc.

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In this work, novel nanocomposite beads based on polyvinyl alcohol (PVA) coated polyacrylonitrile (PAN) with encapsulation of TiO 2 nanoparticles (PPT) were developed successfully via a novel green synthetic method and its methylene blue (MB) removal ability by adsorption was also investigated. As-prepared nanocomposite beads were characterized by different techniques such as Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM) and thermogravimetric analysis (TGA). TiO 2 nanoparticles were encapsulated into the composite beads to endow the composite beads with photocatalytic ability and enhance its adsorption capacity for MB. Batch experiments with several variables such as TiO 2 nanoparticle content, pH of the solution, contact time and initial MB concentration were carried out. The adsorption kinetic study revealed that the MB adsorption process agreed well with pseudo-second order model and showed 3-stage intraparticle diffusion model. The adsorption isotherm study indicated that the MB adsorption process could also be better described by Langmuir isotherm model. According to Langmuir isotherm equation, the maximum adsorption capacity and removal rate for MB was 242.13 mg g-1 and 98.4%, respectively. Moreover, the stability and reusability of as-prepared PPT beads were further explored and results demonstrated that PPT could be reused at least five times with negligible loss of sorption capacity and removal rate. Therefore, PPT is expected to be a potential candidate for effluents treatment.

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“…The filtration of the dyes was shown to be most efficient in low acidic pHs, and the majority of the adsorption occurs with half an hour. PVA can also be modified using cyclodextrin to create a water-insoluble ENMs composite [82]. This system was shown to work using thermal crosslinking with citric acid.…”

Section: Polyvinyl Alcoholmentioning

confidence: 99%

Electrospun polymeric nanofibrous membranes for water treatment

Snowdon¹,

Liang²

2018

Preprint

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A necessity for water filtration technology, due to global pollution and population growth, has led to an increase in attention to advanced nanomaterials that can aid in the purification of air and water. This size-dependent filtration is possible via nanofibrous membranes as they contain high porosity and this pore size is tunable through the fabrication process. Because of this tunability in the nanofibril membrane composition and structure, they possess promising straining abilities, such as high permeability and selectivity, as well as low fouling. There are a variety of polymer blends or organic/inorganic nanofillers that can be used depending on filtration needs. The production of nanofibers consists of various avenues such as synthetic templates, separation by different phases, nanoparticle self-assembly, and most widespread, electrospinning. Electrospinning is prevalent owing to its ease of use and low cost compared to template and self- assembly processes. This chapter describes the multifaceted progression governing electrospinning and its working factors as well as the environmental settings that form nanofibers and their resultant membranes. Additionally, the various designs of electrospinning apparatuses' and review of the methods used to prepare multifunctional composite electrospun nanofibrous membranes will be discussed. Past achievements and current challenges will be provided. Conclusions and perspectives are specified fitting to studied progress so far as well as future needs with regards to water treatment, with a particular focus on industrial applications.

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Water-insoluble sericin/β-cyclodextrin/PVA composite electrospun nanofibers as effective adsorbents towards methylene blue

Cited by 107 publications

References 34 publications

Enhanced selective adsorption of cation organic dyes on polyvinyl alcohol/agar/maltodextrin water‐resistance biomembrane

Enhanced selective adsorption of cation organic dyes on polyvinyl alcohol/agar/maltodextrin water‐resistance biomembrane

Encapsulating TiO2 into Polyvinyl Alcohol Coated Polyacrylonitrile Composite Beads for the Effective Removal of Methylene Blue

Electrospun polymeric nanofibrous membranes for water treatment

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