Removal of textile dyes and metallic ions using polyelectrolytes and macroelectrolytes containing sulfonic acid groups

Caldera‐Villalobos, Martín; Cid, A. A. Peláez; Herrera‐González, Ana M.

doi:10.1016/j.jenvman.2016.04.004

Cited by 44 publications

(9 citation statements)

References 24 publications

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“…The attraction of molecules with opposite charge to ionic groups of the polyelectrolytes constitutes the basis for the development of technologies such as ionic exchange, coagulation–flocculation, membrane filtration, and adsorption. Synthetic polyelectrolytes and macroelectrolytes with sulfonic acid groups have been reported to adsorb textile dyes with high adsorptive capacities ranging between 180 and 417 mg dm −3 . Another polyelectrolyte studied for dyes adsorption is chitosan, a polyelectrolyte obtained by deacetylation of chitin which is a polysaccharide abundant in nature and forms part of the exoskeleton of several crustaceans .…”

Section: Introductionsupporting

confidence: 62%

“…Synthetic polyelectrolytes and macroelectrolytes with sulfonic acid groups have been reported to adsorb textile dyes with high adsorptive capacities ranging between 180 and 417 mg dm −3 . 18 Another polyelectrolyte studied for dyes adsorption is chitosan, a polyelectrolyte obtained by deacetylation of chitin which is a polysaccharide abundant in nature and forms part of the exoskeleton of several crustaceans. 19 Chitin is a waste produced in large amounts by the fishing industry, which makes chitosan a low-cost material.…”

Section: Introductionmentioning

confidence: 99%

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Adsorption of textile dyes present in aqueous solution and wastewater using polyelectrolytes derived from chitosan

Herrera‐González

Peláez-Cid

Caldera‐Villalobos

2017

J. Chem. Technol. Biotechnol

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BACKGROUND Adsorption is one of the most commonly used methods for the removal of textile dyes because of its low cost and ease of operation. Nowadays, unconventional materials capable of specific interactions such as polyelectrolytes are being proposed to be used as adsorbents. This work presents the results of the application of chemically modified polyelectrolytes derived from chitosan containing amino and sulfonate groups in the adsorption of four textile dyes, as well as the treatment of wastewater from the textile industry. RESULTS By optimizing the conditions of static adsorption, approximately 90% of the cationic dyes present in an aqueous solution with an initial concentration of 300 mg dm−3 and a basic pH of around 11.5 were removed. Anionic dyes almost reach 100% adsorption on the polyampholytes. The point of zero charge (pHpzc) was determined, and it was found that both polyampholytes exhibited a basic character on their surface (pHpzc > 8.7). The adsorption isotherms for the cationic and anionic dyes fit Langmuir's model, and the values for RL indicated that the process of adsorption for cationic and anionic dyes is energetically favorable on both polyampholytes. CONCLUSIONS The chemical modification introducing sulfonate groups on chitosan does not affect its natural ability to adsorb anionic dyes, but it also allows it to adsorb high concentrations of cationic dyes. This way, semisynthetic polyelectrolytes were capable of improving the quality of wastewaters treated by adsorption by reducing their pH, making it less alkaline, and decreasing the color, contents of suspended solids, and COD. © 2017 Society of Chemical Industry

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Section: Introductionsupporting

confidence: 62%

Section: Introductionmentioning

confidence: 99%

Adsorption of textile dyes present in aqueous solution and wastewater using polyelectrolytes derived from chitosan

Herrera‐González

Peláez-Cid

Caldera‐Villalobos

2017

J. Chem. Technol. Biotechnol

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“…Flocculating agents can be divided into two categories: inorganic and polymeric. Among various polymeric flocculants, poly(diallyldimethylammonium chloride), epichlorohydrin-dimethylamine (EPI-DMA) and polyacrylamide are mostly used in wastewater treatment (Oladoja 2016, Villalobos et al 2016. The remarkable feature of polyDADMAC is that it is cationic and highly soluble in water .…”

Section: Introductionmentioning

confidence: 99%

Treatment of Reactive Dye Containing Textile Wastewater using Microwave Assisted Synthesized Poly(Diallyldimethylammonium Chloride)

Rahman¹,

Rana

Nasreen

et al. 2018

J Bangladesh Acad Sci

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Results on the applicability of microwave assisted synthesized poly(diallyldimethyl ammonium chloride) (polyDADMAC) in reactive dye containing textile wastewater treatment are reported. Diallyldimethylammonium chloride and poly(diallyldimethylammonium chloride) have been characterized by spectral means. The microwave assisted synthesized polyDADMAC has shown some effectiveness in textile wastewater treatment. COD removal efficiency of actual textile wastewater is below 30% whereas the standard dye sample shows about 50-60% COD removal efficiency. TDS and TSS also decreased after treatment of the wastewater with polyDADMAC.

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“…The basic polyelectrolytes generally have in their structures amino, phosphonium, sulfonium, boronium, imidazolium, or pyridinium groups. The acid polyelectrolytes have carboxylate, sulfate, sulfonate, phosphonate, or arsonate groups.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and stabilization of Au nanoparticles in colloidal solution using macroelectrolytes with sulfonic acid groups

Herrera‐González

Garcı́a-Serrano

Caldera‐Villalobos

2017

J of Applied Polymer Sci

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Metal nanoparticles are obtained by different chemical reactions using reducing agents that are not environmentally friendly. This work report the synthesis of Au nanoparticles in colloidal solution using three monodisperse macroelectrolytes, with peripheral sulfonic acid groups bonded covalently, without toxic reducing agents. During the synthesis of Au nanoparticles were used the new macroelectrolytes as reducing and stabilizing agents in aqueous solution or ethylene glycol. The macroelectrolytes were synthesized using hexachlorocyclotriphosphazene as core, and o‐ or p‐aminobenzenesulfonic acid, obtaining acid macroelectrolytes with two and six sulfonic acid groups in ortho‐ position, and four sulfonic acid groups in para‐ position. The ultraviolet–visible (UV–vis) absorption spectroscopy and transmission electron microscopy study show that the macroelectrolytes with sulfonic acid groups in ortho‐ position are reducing agents for Au+++ ions in colloidal solution and produced Au nanoparticles with anisotropic shapes, such as decahedrons and prisms. The macroelectrolyte with sulfonic acid groups in para‐ position is reducing agent for Au+++ and produces quasispherical Au nanoparticles with sizes between 8 and 40 nm. The colloidal solutions with Au nanoparticles were stable by several months due to the protection of imine and sulfonic groups of macroelectrolytes on the Au nanoparticles. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 45888.

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Removal of textile dyes and metallic ions using polyelectrolytes and macroelectrolytes containing sulfonic acid groups

Cited by 44 publications

References 24 publications

Adsorption of textile dyes present in aqueous solution and wastewater using polyelectrolytes derived from chitosan

Adsorption of textile dyes present in aqueous solution and wastewater using polyelectrolytes derived from chitosan

Treatment of Reactive Dye Containing Textile Wastewater using Microwave Assisted Synthesized Poly(Diallyldimethylammonium Chloride)

Synthesis and stabilization of Au nanoparticles in colloidal solution using macroelectrolytes with sulfonic acid groups

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