Poly(Acrylamide-Sepiolite) Composite Hydrogels: Preparation, Swelling and Dye Adsorption Properties

Ekici, Sema; Işıkver, Yasemin; Saraydın, Dursun

doi:10.1007/s00289-006-0552-0

Cited by 74 publications

(39 citation statements)

References 23 publications

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“…To reduce costs and * Author for correspondence (ekaradag@adu.edu.tr) improve the comprehensive water-absorbing properties of superabsorbent materials based on acrylic monomers, grafting acrylic monomers onto clay and fabricating a composite consisting of a polymer and clay is a priority (Li and Wang 2005;Ekici et al 2006;Kaşgöz et al 2008;Kundakcı et al 2008Kundakcı et al , 2009Gu and Ye 2009;Güçlü et al 2010;Mahdavinia and Asgari 2013). On the other hand, the development and characterization of nanostructured polymer/clay composites have received special attention because of the advantages in comparison to the traditional polymer composites.…”

Section: Introductionmentioning

confidence: 99%

“…The polymer/clay hydrogel composite has received great attention because of its relatively low production cost and high adsorption capacity for some dyes and metal ions (Li and Wang 2005;Ekici et al 2006;Kaşgöz et al 2008;Kundakcı et al 2008Kundakcı et al , 2009Gu and Ye 2009;Güçlü et al 2010;Mahdavinia and Asgari 2013). To reduce costs and * Author for correspondence (ekaradag@adu.edu.tr) improve the comprehensive water-absorbing properties of superabsorbent materials based on acrylic monomers, grafting acrylic monomers onto clay and fabricating a composite consisting of a polymer and clay is a priority (Li and Wang 2005;Ekici et al 2006;Kaşgöz et al 2008;Kundakcı et al 2008Kundakcı et al , 2009Gu and Ye 2009;Güçlü et al 2010;Mahdavinia and Asgari 2013).…”

Section: Introductionmentioning

confidence: 99%

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Novel composite sorbent AAm/MA hydrogels containing starch and kaolin for water sorption and dye uptake

et al. 2014

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A novel polymer/clay composite sorbent based on acrylamide/maleic acid, starch and clay such as kaolin was synthesized with free radical solution polymerization by using ammonium persulfate/N,N,N ,Ntetramethylethylenediamine as redox initiating pair in the presence of poly(ethylene glycol)diacrylate as a crosslinker. Surface morphology was characterized by the scanning electron microscopy technique. FT-IR analysis was used to identify the presence of different repeating units in the semi-interpenetrating polymer networks (semi-IPNs). Some swelling and diffusion characteristics were calculated for different semi-IPNs and hydrogels prepared under various formulations. The hydrogels were used in experiments on sorption of water-soluble cationic dye such as toluidine blue. Sorption of toluidine blue into the polymeric systems was studied by the batch sorption technique at 25 • C. Water uptake and dye sorption properties of the crosslinked polymeric systems were investigated as a function of chemical composition of the hydrogels.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Novel composite sorbent AAm/MA hydrogels containing starch and kaolin for water sorption and dye uptake

et al. 2014

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“…These kinds of hydrogels can combine the elasticity and permeability of gels with the reinforcing ability of clays embedded into the hydrogels. [1][2][3] Thus, the range of applications in different fields of knowledge can be extended.…”

Section: Introductionmentioning

confidence: 99%

Poly(vinyl alcohol)/Clay‐Based Nanocomposite Hydrogels: Swelling Behavior and Characterization

Paranhos

Soares

Oliveira

et al. 2007

Macro Materials & Eng

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Polymer/clay composite hydrogels were prepared based on PVA hydrogels containing 3–10 wt.‐% MOM. Their microstructure and morphology were studied by FT‐IR, WAXS and SEM, whereas the interactions between MOM and PVA were evaluated by thermal analyses. The swelling ratios for the PVA/MOM hydrogels decrease with increasing MOM content. WAXS results indicate that MOM was intercalates, and DSC results show a strong interaction between PVA and MOM. This interaction results in a stable network, which is confirmed by the elastic modulus and the thermal decomposition behavior of the hydrogels. Therefore, MOM acts as a co‐crosslinker, improving the stability of the network.magnified image

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“…Moreover, the dye particles might transfer from outer surface to internal lamellar area and bringing about the disaggregation of the whole load. With high capacity rate of acid dye, agglomeration is predictable to be predominating, but monomers in addition to dimmers are basically missing within acid dye-NC complexes [30][31][32][33][34][35][36][37]. From Table 3, it can be concluded that in case of the nanocomposites I and II, the dye adsorption rate (%) was increased by increasing the dye concentration and the best dye adsorption rate can be obtained at 0.5 g/L dye conc.…”

Section: Effect Of Ar150 Concentration On the Dye Adsorption Using Ulmentioning

confidence: 72%

Kinetic study of gelatin/chitosan based nanocomposites for acid red 150 dye adsorption using ultrasonic energy

et al. 2017

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HE EFFECT of acid red 150 dye (AR150) adsorption parameters onto the prepared gelatin/chitosan/laponite based nanocomposites (NC I, II, III and IV) such as dye concentration, contact time, pH, and sorbent amount using ultrasonic energy had been studied. The standard adsorption affinity through the adsorbent suitability was also carried out. The results revealed that high concentrations of AR150 and chitosan content led to an increasing in the adsorption rate. A comparison between adsorption kinetics of the prepared nanocomposites with conventional and ultrasonic techniques was investigated. The time/dye-uptake isotherms were declared the improvement of dye adsorption in the second phase. Adsorption rate, reaction half-time and standard affinities were also studied. The dye adsorption uptake using ultrasound technique was higher than that in case of the conventional one in case of all the used nanocomposites. On the other hand, in case of using ultrasonic technique, the isotherms showed high dye uptake. In other words, the best dye adsorption rate could be obtained at different nanocomposite concentrations 0.3 and 0.8 g/L in case NCIII and IV, respectively.

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Poly(Acrylamide-Sepiolite) Composite Hydrogels: Preparation, Swelling and Dye Adsorption Properties

Cited by 74 publications

References 23 publications

Novel composite sorbent AAm/MA hydrogels containing starch and kaolin for water sorption and dye uptake

Novel composite sorbent AAm/MA hydrogels containing starch and kaolin for water sorption and dye uptake

Poly(vinyl alcohol)/Clay‐Based Nanocomposite Hydrogels: Swelling Behavior and Characterization

Kinetic study of gelatin/chitosan based nanocomposites for acid red 150 dye adsorption using ultrasonic energy

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