Conjugated Polymer‐Based Composites for Water Purification

Li, Jiaxing; Huang, Yongshun; Shao, Dadong

doi:10.1002/9781119137160.ch11

Cited by 8 publications

(3 citation statements)

References 100 publications

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“…The ∆G values are also useful to explain the adsorption phenomenon, explains the spontaneity or nonspontaneity of the adsorption. The ∆G variation from -20 to 0 kJ mol -1 show physisorption and from -400 to -80 kJ mol -1 show chemisorption [12,72]. For the MB adsorption on the pure PANI, The value of ∆G° varies from -31.22 to -46.10 kJ mol -1 and from -22.54 to -47 kJ mol -1 for the PANI/SiO 2 composite.…”

Section: Thermodynamic Studymentioning

confidence: 95%

WITHDRAWN: Elimination Study of Methylene Blue Dye Using PANI and PANI/SiO2 Composite.

Bensedira

Haddaoui

Doufnoune

et al. 2021

Preprint

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Conducting Polymeric composites have attracted great attention over the last years because of their potential uses in chemical, electronic and optical devices, and as catalysts as well as in adsorption processes. Chemical synthesis of polyaniline (PANI) and polyaniline-SiO2 composite and their adsorptive performance were reported in the present work. These materials were prepared and evaluated for their methylene blue (MB) dye adsorption characteristics from aqueous solution. Adsorption equilibrium kinetic and thermodynamic experiments of MB onto PANI and PANI/SiO2 were studied. The effects of initial dye concentration, contact time and temperature on the adsorption capacity of PANI/SiO2 for MB have been investigated. The pseudo-first order and pseudo-second order kinetic models were used to describe the kinetic data. It was found that adsorption kinetics followed the pseudo-second order at all of the studied temperatures. The Langmuir, Freundlich and Dubinin Raduschkevich adsorption models were used for the mathematical description and the fit obtained using the Dubinin Raduschkevich isotherm has a medium R2 value.

show abstract

Section: Thermodynamic Studymentioning

confidence: 95%

WITHDRAWN: Elimination Study of Methylene Blue Dye Using PANI and PANI/SiO2 Composite.

Bensedira

Haddaoui

Doufnoune

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

“…When ∆G° is between −20–0 kJ mol −1 show physisorption and −400 to −80 kJ mol −1 show chemisorption. 12,71 In this part, ∆ G ° values decreases with increasing temperatures in the ranges 30–45°C. For Methylene Blue adsorption on the pure PANI and PANI/SiO 2 composite, the values of ∆ G ° varies from −31.22 to −46.10 kJ mol −1 and −22.54 to −47 kJ mol −1 , respectively.…”

Section: Resultsmentioning

confidence: 85%

Study of methylene blue dye elimination from water using polyaniline (PANI) and PANI/SiO₂ composite

Bensedira

Haddaoui

Doufnoune

et al. 2022

Polymers and Polymer Composites

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Conducting polymeric composites have attracted great attention over the last years because of their potential uses in chemical, electronic and optical devices, and as catalysts as well as in adsorption processes. Chemical synthesis of polyaniline (PANI) and polyaniline-SiO2 composite and their adsorptive performance were reported in the present work. These materials were prepared and evaluated for their methylene blue (MB) dye adsorption characteristics from aqueous solution. Adsorption equilibrium kinetic and thermodynamic experiments of MB onto PANI and PANI/SiO2 were studied. The effects of initial dye concentration, contact time and temperature on the adsorption capacity of PANI/SiO2 for MB have been investigated. The pseudo-first order and pseudo-second order kinetic models were used to describe the kinetic data. It was found that adsorption kinetics followed the pseudo-second order at all of the studied temperatures. The Langmuir, Freundlich and Dubinin Raduschkevich adsorption models were used for the mathematical description and the HyperChem v8 software was exploited to propose a possible mechanism of the adsorption process.

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“…These forms may be inter-converted by chemical and/or electrochemical oxidation or reduction [33]. PANI is a prospective candidate adsorbent for wastewater treatment owing to active amine and imine groups as adsorption sites interacting with pollutants in aqueous solutions [35]. As shown in Fig.…”

Section: Polyaniline (Pani)mentioning

confidence: 99%

Polyaniline-based adsorbents for aqueous pollutants removal: A review

Samadi

Xie

et al. 2021

Chemical Engineering Journal

162

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Conjugated Polymer‐Based Composites for Water Purification

Cited by 8 publications

References 100 publications

WITHDRAWN: Elimination Study of Methylene Blue Dye Using PANI and PANI/SiO2 Composite.

WITHDRAWN: Elimination Study of Methylene Blue Dye Using PANI and PANI/SiO2 Composite.

Study of methylene blue dye elimination from water using polyaniline (PANI) and PANI/SiO₂ composite

Polyaniline-based adsorbents for aqueous pollutants removal: A review

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Conjugated Polymer‐Based Composites for Water Purification

Cited by 8 publications

References 100 publications

WITHDRAWN: Elimination Study of Methylene Blue Dye Using PANI and PANI/SiO2 Composite.

WITHDRAWN: Elimination Study of Methylene Blue Dye Using PANI and PANI/SiO2 Composite.

Study of methylene blue dye elimination from water using polyaniline (PANI) and PANI/SiO2 composite

Polyaniline-based adsorbents for aqueous pollutants removal: A review

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Product

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Study of methylene blue dye elimination from water using polyaniline (PANI) and PANI/SiO₂ composite