Synthesis, characterization, swelling and dye adsorption properties of starch incorporated acrylic gels

Mandal, Bidyadhar; Ray, S. K.

doi:10.1016/j.ijbiomac.2015.08.050

Cited by 22 publications

(11 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The XRD and SEM observations had consistently shown that the immobilizing reaction of γ-CD mostly took place on the surface and in the amorphous regions of starch granules, while their crystalline regions were basically uninfluenced. Thus the CS-γCD could generally maintain its integrated crystalline structures, which was beneficial for the application of CS-γCD as an adsorbent in wastewater treatment, which was because a relatively strong crystalline structure would provide higher physicalchemical, mechanical and biological stability for the natural macro-molecular material [33].…”

Section: Sem and Xrd Analysismentioning

confidence: 99%

Preparing γ-Cyclodextrin-Immobilized Starch and the Study of its Removal Properties to Dyestuff from Wastewater

Zhang¹,

Zhang²,

Cheng³

et al. 2019

Pol. J. Environ. Stud.

View full text Add to dashboard Cite

A novel natural polymeric adsorbing material γ-cyclodextrin immobilized starch (CS-γCD) was prepared by introducing host functional molecule γ-cyclodextrin (γ-CD) into starch, using epichlorohydrin (ECH) as a cross-linking agent and sodium hydroxide as a catalyst, via the aqueous-phase synthesis method. The γ-cyclodextrin content in CS-γCD was up to 8.15% determined by the bromocresol green (BCG) hyperchromic spectrophotometric method. The structures of CS-γCD were characterized by infrared spectrum (FT-IR), 13 C-nuclear magnetic resonance spectrum ( 13 C-NMR), scanning electron microscope (SEM), x-ray diffraction (XRD), and gel permeation chromatography (GPC). We investigated the adsorption performances and kinetics of CS-γCD to three different kinds of dyestuff including methylene blue (MB), methyl purple (MP), and congo red (CR). The results showed the adsorbing capacities of CS-γCD to three kinds of dyes had obviously increased compared with native starch and diatomite, and the CS-γCD was also found to have a significant advantage in adsorption of macro-molecule dye such as CR over other adsorbing materials. The adsorption behaviors of CS-γCD on the three dyestuffs could be better described by a Langmuir model (R 2 >0.99), but also had relatively high correlation to Freundlich model. The pseudo second-order model could better describe the adsorption behaviors. The CS-γCD could be enzymolysised, while its degradation rate was much lower than native starch, which indicated that CS-γCD had a relatively higher structural stability and longer service life, these characters could be beneficial for the popularization and application of CS-γCD in fields of wastewater treatment and environment remediation.

show abstract

Section: Sem and Xrd Analysismentioning

confidence: 99%

Preparing γ-Cyclodextrin-Immobilized Starch and the Study of its Removal Properties to Dyestuff from Wastewater

Zhang¹,

Zhang²,

Cheng³

et al. 2019

Pol. J. Environ. Stud.

View full text Add to dashboard Cite

show abstract

“…[14] Most IL materials for protein present good selectivity. Meanwhile, hydrogels have attracted much attention and been applied to adsorb metal ions, [15] pigments [16] and proteins, [17] and so on, for their higher adsorption capacity, good biocompatibility, low cost and easy degradation. Combination of large adsorption capacity of hydrogels and excellent selectivity of ILs may provide a possible solution to the problems above.…”

Section: Introductionmentioning

confidence: 99%

Tropine‐Based Ionic Liquid Gel for Adsorption of Protein Ovalbumin: High Capacity, Selectivity and Biocompatibility

Lin

Yao

et al. 2020

ChemistrySelect

View full text Add to dashboard Cite

Chicken ovalbumin (OVA) and lysozyme (LZ) are important biological products, which come from the egg‐white. However, the separation of OVA and LZ is realized by traditional salting‐out method needing large amount of ammonium sulfate, leading to lysozyme enzyme activity reducing. In this work, we used a tropine‐based ionic liquid (IL) hydrogel to separate OVA and LZ. The adsorption isotherms, thermodynamics and kinetics were investigated. The IL gel showed maximum adsorption capacity of 926 mg g−1 for OVA, nearly 152 % higher than that reported in other literature. Moreover, the secondary structure of desorbed OVA was confirmed by fluorescence spectroscopy (FL), circular dichroism spectra (CD) and differential scanning calorimetry (DSC). The material presented high OVA adsorption capacity, excellent OVA selectivity and good biocompatibility in OVA‐LZ protein system. It could be considered as a promising material for preferential protein adsorption, at least for separation of OVA and LZ.

show abstract

“…These metal salts can be applied alone or in combination with other free radical initiators and a reducing agent in the form of a ternary system. Among these, ceric salts are the most selective initiators commonly used in graft copolymerisation of starch SAP-Hs (Lewicka et al, 2015;Mandal & Ray, 2015;Zhu, 2016).…”

Section: Graft Copolymerisationmentioning

confidence: 99%

“…Recently, natural polymers, such as polysaccharides, have gained attention as a sustainable source of biomaterials to produce hybrid sorbents (Zheng et al, 2012). Starch, in particular, has shown great application potential as an economical feedstock in this area (Farag et al, 2018;Mandal & Ray, 2015). In addition to being chemically modifiable, starch is abundant, renewable, and biodegradable.…”

Section: Introductionmentioning

confidence: 99%

“…While recent advancements in polymer science has enhanced the design and tailoring methods for such systems, the prospect of their commercial application has remained restricted. This is mainly due to the complications associated with their large-scale production, including costly and complex production methods with poor reproducibility, wherein large quantities of toxic chemical reagents and substantial amounts of solvent are required both during the synthesis and at the end of the process during product isolation (Dragan, 2014;Farag et al, 2018;Mandal & Ray, 2015). To address these technical limitations, we developed a processing method based on reactive extrusion (REx) and demonstrated this method's viability for grafting starch with AAm using a laboratory-scale co-rotating twin-screw extruder (Siyamak et al, 2020b;Siyamak et al, 2020c).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Functional starch-based hydrogels: renewable material solutions for wastewater and agriculture industries

Siyamak¹

View full text Add to dashboard Cite

Synthesis, characterization, swelling and dye adsorption properties of starch incorporated acrylic gels

Cited by 22 publications

References 40 publications

Preparing γ-Cyclodextrin-Immobilized Starch and the Study of its Removal Properties to Dyestuff from Wastewater

Preparing γ-Cyclodextrin-Immobilized Starch and the Study of its Removal Properties to Dyestuff from Wastewater

Tropine‐Based Ionic Liquid Gel for Adsorption of Protein Ovalbumin: High Capacity, Selectivity and Biocompatibility

Functional starch-based hydrogels: renewable material solutions for wastewater and agriculture industries

Contact Info

Product

Resources

About