Green synthesis of poly(pyrrole methane) for enhanced adsorption of anionic and cationic dyes from aqueous solution

Ji, Yajun; Zhang, Wenlong; Yang, Hanxi; Ma, Fang; Xu, Feiya

doi:10.1016/j.jcis.2021.01.073

Cited by 45 publications

(9 citation statements)

References 53 publications

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“…As the sorption process progresses, the sorption capacity of a used sorbent gradually decreases until it is ultimately depleted. Consequently, the effective regeneration scenario of the saturated sorbent simultaneously determined its actual economic and environmental advantages for future practical applications . The desorption property of the MPBC sorbent was evaluated, and the findings are shown in Table S2.…”

Section: Resultsmentioning

confidence: 94%

“…Consequently, the effective regeneration scenario of the saturated sorbent simultaneously determined its actual economic and environmental advantages for future practical applications. 89 The desorption property of the MPBC sorbent was evaluated, and the findings are shown in Table S2 . Intriguingly, it is evident that the RE % of MPBC sorbent decreased from 91.1 to 84.2% after 5 sorption-desorption cycles of sorbent reusability.…”

Section: Resultsmentioning

confidence: 99%

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Facile Synthesis and Life Cycle Assessment of Highly Active Magnetic Sorbent Composite Derived from Mixed Plastic and Biomass Waste for Water Remediation

Osman

Elgarahy

Mehta

et al. 2022

ACS Sustainable Chem. Eng.

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Plastic and biomass waste pose a serious environmental risk; thus, herein, we mixed biomass waste with plastic bottle waste (PET) to produce char composite materials for producing a magnetic char composite for better separation when used in water treatment applications. This study also calculated the life cycle environmental impacts of the preparation of adsorbent material for 11 different indicator categories. For 1 functional unit (1 kg of pomace leaves as feedstock), abiotic depletion of fossil fuels and global warming potential were quantified as 7.17 MJ and 0.63 kg CO 2 equiv for production of magnetic char composite materials. The magnetic char composite material (MPBC) was then used to remove crystal violet dye from its aqueous solution under various operational parameters. The kinetics and isotherm statistical theories showed that the sorption of CV dye onto MPBC was governed by pseudo-second-order, and Langmuir models, respectively. The quantitative assessment of sorption capacity clarifies that the produced MPBC exhibited an admirable ability of 256.41 mg g –1 . Meanwhile, the recyclability of 92.4% of MPBC was demonstrated after 5 adsorption/desorption cycles. Findings from this study will inspire more sustainable and cost-effective production of magnetic sorbents, including those derived from combined plastic and biomass waste streams.

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Section: Resultsmentioning

confidence: 94%

Section: Resultsmentioning

confidence: 99%

Facile Synthesis and Life Cycle Assessment of Highly Active Magnetic Sorbent Composite Derived from Mixed Plastic and Biomass Waste for Water Remediation

Osman

Elgarahy

Mehta

et al. 2022

ACS Sustainable Chem. Eng.

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“…The adsorption or an anionic dye, Reactive Black 5, on globular polypyrrole was poor, but it was complete when the polypyrrole nanofibers of nanotubes were used instead [ 16 ]. In another study, the adsorption of both anionic and cationic dyes was attributed to electrostatic interactions and hydrogen bonding [ 12 ].…”

Section: Polypyrrole Adsorbentsmentioning

confidence: 99%

“…The transition between the conducting salt and the less conducting base is shifted to a much lower pH [ 11 ]. The adsorption is thus likely to depend on the pH [ 12 ]. Under neutral pHs, most often met in practice, polypyrrole maintains its conducting form, whereas polyaniline may start to lose its conductivity due to deprotonation ( Figure 1 ).…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in the Removal of Organic Dyes from Aqueous Media with Conducting Polymers, Polyaniline and Polypyrrole, and Their Composites

Stejskal

2022

Polymers

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Water pollution by organic dyes, and its remediation, is an important environmental issue associated with ever-increasing scientific interest. Conducting polymers have recently come to the forefront as advanced agents for removing dye. The present review reports on the progress represented by the literature published in 2020–2022 on the application of conducting polymers and their composites in the removal of dyes from aqueous media. Two composites, incorporating the most important polymers, polyaniline, and polypyrrole, have been used as efficient dye adsorbents or photocatalysts of dye decomposition. The recent application trends are outlined, and future uses also exploiting the electrical and electrochemical properties of conducting polymers are offered.

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“…Excessive discharge of organic dyes has already caused severe risk to the ecological system and human health (Ji et al 2021). Particularly, azo dyes are proven to be more toxic, carcinogenic, and even mutagenic compared to other forms of dyes, which are composed of aromatic rings and covalent azo bonds (N=N) (Gurav et al 2021;Kelm et al 2019;Oon et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Resource utilization of organic spent adsorbent to prepare three-dimensional sulfate-functionalized layered double oxide for superior removal of azo dye

Zhang

Zheng

et al. 2021

Environ Sci Pollut Res

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Developing superior, rapid, cost-effective adsorbents derived from organic spent adsorbent is an economically sustainable way for purifying azo dye wastewater. Herein, we report a precursor-calcination strategy for the recycle of the organic spent adsorbent to a high value-added three-dimensional sulfate-functionalized MgAl-layered double oxide (3S-LDO).Thanks to the unique property of the sulfate group and LDO, 3S-LDO exhibited a superior (4340.71 mg/g) and ultrafast (<1 hour) adsorption toward methyl orange (MO, as the representative of azo dye). A thermodynamic study revealed that the reaction process was spontaneous and exothermic. FT-IR, XPS, and XRD results confirmed that the sulfate from 3S-LDO played a vital role in MO removal wherein the S=O bond (with the electrophilic character) from SO 4 2interacted with the N=N double bond (with rich electron) in MO through the electron donor-acceptor mechanism. And the "memory effect" and surface complexation of 3S-LDO further strengthened the MO adsorption. More importantly, 3S-LDO could work efficiently in a wide pH range and even in the presence of competitive anions (e.g., Cl -, NO 3 -, and CO 3 2-).Multiple cyclic runs and selective tests demonstrated the excellent reusability and explicit selectivity of 3S-LDO. This work not only provides a prospective sulfate-functionalized adsorbent from organic waste for rapid azo dye removal from wastewater but also achieves the high value-added utilization of organic waste.

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Green synthesis of poly(pyrrole methane) for enhanced adsorption of anionic and cationic dyes from aqueous solution

Cited by 45 publications

References 53 publications

Facile Synthesis and Life Cycle Assessment of Highly Active Magnetic Sorbent Composite Derived from Mixed Plastic and Biomass Waste for Water Remediation

Facile Synthesis and Life Cycle Assessment of Highly Active Magnetic Sorbent Composite Derived from Mixed Plastic and Biomass Waste for Water Remediation

Recent Advances in the Removal of Organic Dyes from Aqueous Media with Conducting Polymers, Polyaniline and Polypyrrole, and Their Composites

Resource utilization of organic spent adsorbent to prepare three-dimensional sulfate-functionalized layered double oxide for superior removal of azo dye

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