Synthesis of water-dispersible graphene-modified magnetic polypyrrole nanocomposite and its ability to efficiently adsorb methylene blue from aqueous solution

Bai, Lizhen; Li, Zuopeng; Zhang, Ying; Wang, Ting; Lu, Riyu; Zhou, Wenfeng; Gao, Haixiang; Zhang, Sanbing

doi:10.1016/j.cej.2015.05.068

Cited by 148 publications

(36 citation statements)

References 43 publications

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“…Hence, the removal percentage (%), adsorption rate ( q t ) and adsorbed amount ( q e ) of radionuclide at equilibrium have been estimated following Eqs. 1–3 :

normalR normale normalm normalo normalv normala normall true(% true) = \frac{A_{0} - A_{e}}{A_{0}} \times 100

q_{t} = \frac{C_{0} V_{0} - C_{t} V_{t}}{m}

q_{e} = \frac{C_{0} V_{0} - C_{e} V_{e}}{m}

where A 0 and A e are the initial and final radio activities of active Cs corresponding to C 0 and C e of stable Cs ions in the solution of volume V 0 and V e , respectively. Also, C t and V t represent the concentration and volume of Cs ions at time ‘ t ’, respectively, while m (g) is the mass of the adsorbent.…”

Section: Methodsmentioning

confidence: 99%

“…Conversely, polypyrrole conducting polymer has emerged as a low‐cost adsorbent or ion‐exchanger for heavy metal removal from aqueous solution . Polypyrrole conducting polymer without or with weak additives shows to exhibit low sorption capacity . Hence, to use polypyrrole conducting polymer as an adsorbent for radionuclides, the choice of dopants, synthesis method and formation period bear a great significance toward high adsorption.…”

Section: Introductionmentioning

confidence: 99%

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Adsorption kinetics, equilibrium and radiation effect studies of radioactive cesium by polymer‐based adsorbent

Olatunji

Khandaker

Mahmud

2017

Vinyl Additive Technology

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Electroactive polypyrrole has been synthesized by oxidative polymerization of pyrrole using ferric chloride hexahydrate as oxidant in the presence of sodium dodecylbenzene sulfonate (SDBS), and used to remove radioactive cesium from aqueous solution. The SDBS‐doped polypyrrole (PPy/SDBS) adsorbent was characterized by Field emission scanning electron microscopy, X‐ray diffraction and Fourier transform infrared techniques. A rapid and efficient adsorption of 137Cs radionuclide with a maximum sorption capacity of 26.2 mg/g has been achieved at 313 K. The kinetic data show the best fitting by the pseudo first‐order model while the Langmuir model properly reproduced the isotherm data. The thermodynamics parameters revealed an endothermic and spontaneous nature of the adsorption process. The adsorption efficiency shows only an insignificant variation with the gamma‐ray doses of 100 and 200 kGy. Considering the toxicity and nonbiodegradable nature of radioactive cesium, SDBS‐doped polypyrrole could be a good adsorbent for the recovery of 137Cs from radioactive effluents. J. VINYL ADDIT. TECHNOL., 24:347–357, 2018. © 2017 Society of Plastics Engineers

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“…Hence, the removal percentage (%), adsorption rate ( q t ) and adsorbed amount ( q e ) of radionuclide at equilibrium have been estimated following Eqs. 1–3 :

normalR normale normalm normalo normalv normala normall true(% true) = \frac{A_{0} - A_{e}}{A_{0}} \times 100

q_{t} = \frac{C_{0} V_{0} - C_{t} V_{t}}{m}

q_{e} = \frac{C_{0} V_{0} - C_{e} V_{e}}{m}

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Adsorption kinetics, equilibrium and radiation effect studies of radioactive cesium by polymer‐based adsorbent

Olatunji

Khandaker

Mahmud

2017

Vinyl Additive Technology

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“…Adsorption has been found as the most proper method for dye removal because it is practical, economic and has high activity . From this point of view, numerous procedures have been utilized to develop proficient and usable adsorbents like activated carbon (AC), chitin, peat, solid waste, chitosan, clay materials and silica . However, those adsorbents have shown some disadvantages, such as lower adsorption capacity and efficacy, recycling and reuse limits, prolonged processing times, and low specificity .…”

Section: Introductionmentioning

confidence: 99%

“…From this point of view, numerous procedures have been utilized to develop proficient and usable adsorbents like activated carbon (AC), chitin, peat, solid waste, chitosan, clay materials and silica . However, those adsorbents have shown some disadvantages, such as lower adsorption capacity and efficacy, recycling and reuse limits, prolonged processing times, and low specificity . For this reason, more efficacious adsorbents are compulsory for superior dye removal performances.…”

Section: Introductionmentioning

confidence: 99%

“…For instance, nano‐structured materials or nanocomposites have been reported as effective materials to overcome these drawbacks. In literature, researchers have modified and prepared different nanocomposites to use them as future adsorbents for dye remediation from aqueous solutions . These nanoadsorbents have the mechanical flexibility, tunable pore polymer size, chemical stability, improved structures and abilities to bring out diversified compositions, great surface area, and hence, allow superior contact and removal by generating ideal features for outstanding adsorbents .…”

Section: Introductionmentioning

confidence: 99%

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Highly Monodisperse Pt/Rh Nanoparticles Confined in the Graphene Oxide for Highly Efficient and Reusable Sorbents for Methylene Blue Removal from Aqueous Solutions

et al. 2017

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Addressed herein, a robust methodology to generate monodisperse Pt/Rh@GO nanocomposites and their adsorption performances have been reported to clean methylene blue (MB) from the aqueous mixtures. The monodisperse Pt/Rh@GO nanocomposites were produced by the ultrasonic double solvent reduction method. Their characterization was performed by X‐ray photoelectron spectroscopy (XPS), X‐ray diffraction (XRD), high‐resolution transmission electron microscopy (HR‐TEM) and transmission electron microscopy (TEM). The mechanism of MB adsorption was explored in aqueous solutions. The adsorbtion findings revealed that the Pt/Rh@GO nanocomposites are highly effective adsorbents for MB removal offering 346.79 mg/g as the one of the record adsorption capacity. 40 minutes was observed as the equilibrium time for MB adsorption. More than that, they are reusable as they promise cleaning MB from MB‐contaminated waters maintaining 97.83 % of their initial efficacy after six sequential cycles of adsorption‐desorption.

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Fabrication of magnetic Fe₃O₄/MnO₂/TiO₂/polypyrrole heterostructure for efficient adsorption of Mn⁷⁺ from aqueous solution

Wang

Zheng

Ren

et al. 2022

J of Applied Polymer Sci

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Magnetic Fe3O4/MnO2/TiO2/polypyrrole (PPy) heterostructure as adsorbent for adsorbing Mn7+ was synthesized by combining hydrothermal method and chemical oxidation method. The heterostructure was characterized by field‐emission scanning electron microscope, Fourier transform infrared spectroscopy, X‐ray diffraction, and vibrating sample magnetometer. Its saturation magnetization is 18.88 emu/g, so it is easy to separate it from the solution. The feasibility of Fe3O4/MnO2/TiO2/PPy heterostructure to remove Mn7+ was researched in detail. It is found that the optimal pH is 2. The initial adsorption rate can reach 4.60 mg/g min. At 288.15 K, the maximum equilibrium adsorption capacity is 202.8 mg/g. Adsorption kinetics follows a pseudo second order model, as well as is determined by through membrane diffusion processes. The Langmuir isotherm model is used to describe the adsorption isotherm behavior. Besides, thermodynamic parameters indicate spontaneous adsorption behavior, and entropy of the endothermic reaction increases. Finally, the cycle test results show that the adsorbent has better cycle performance, displaying broad application prospects.

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Synthesis of water-dispersible graphene-modified magnetic polypyrrole nanocomposite and its ability to efficiently adsorb methylene blue from aqueous solution

Cited by 148 publications

References 43 publications

Adsorption kinetics, equilibrium and radiation effect studies of radioactive cesium by polymer‐based adsorbent

Adsorption kinetics, equilibrium and radiation effect studies of radioactive cesium by polymer‐based adsorbent

Highly Monodisperse Pt/Rh Nanoparticles Confined in the Graphene Oxide for Highly Efficient and Reusable Sorbents for Methylene Blue Removal from Aqueous Solutions

Fabrication of magnetic Fe₃O₄/MnO₂/TiO₂/polypyrrole heterostructure for efficient adsorption of Mn⁷⁺ from aqueous solution

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Synthesis of water-dispersible graphene-modified magnetic polypyrrole nanocomposite and its ability to efficiently adsorb methylene blue from aqueous solution

Cited by 148 publications

References 43 publications

Adsorption kinetics, equilibrium and radiation effect studies of radioactive cesium by polymer‐based adsorbent

Adsorption kinetics, equilibrium and radiation effect studies of radioactive cesium by polymer‐based adsorbent

Highly Monodisperse Pt/Rh Nanoparticles Confined in the Graphene Oxide for Highly Efficient and Reusable Sorbents for Methylene Blue Removal from Aqueous Solutions

Fabrication of magnetic Fe3O4/MnO2/TiO2/polypyrrole heterostructure for efficient adsorption of Mn7+ from aqueous solution

Contact Info

Product

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About

Fabrication of magnetic Fe₃O₄/MnO₂/TiO₂/polypyrrole heterostructure for efficient adsorption of Mn⁷⁺ from aqueous solution