In-situ synthesis of metal oxide and polymer decorated activated carbon-based photocatalyst for organic pollutants degradation

Singh, Amar R.; Dhumal, Pratik S.; Bhakare, Madhuri A.; Lokhande, Kshama D.; Bondarde, Mahesh P.; Some, Surajit

doi:10.1016/j.seppur.2021.120380

Cited by 37 publications

(15 citation statements)

References 62 publications

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“…The removal of dyes by the hybrid inorganic–organic composites was more efficient when compared with neat polyaniline and inorganic component alone [ 7 , 8 , 41 , 72 , 88 ]. This is interpreted as a synergistic effect, but a few words of explanation are relevant.…”

Section: Polyaniline Adsorbentsmentioning

confidence: 99%

“…A list of the composites used in the recent literature includes: graphitic carbon/reduced graphene oxide composites [ 119 ]; multiwall carbon nanotubes/polyacrylonitrile [ 139 ]; silver/tin oxide [ 120 ]; titanium dioxide/Cu-MOF [ 91 ]; titanium dioxide/graphene oxide [ 140 ]; zinc oxide/activated carbon [ 72 ]; zinc oxide/cellulose acetate [ 141 , 142 ]; zinc oxide/copper [ 143 ]; or zinc oxide/magnetite [ 19 ].…”

Section: Polypyrrole Photocatalystsmentioning

confidence: 99%

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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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Section: Polyaniline Adsorbentsmentioning

confidence: 99%

Section: Polypyrrole Photocatalystsmentioning

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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“…Nitroaromatics are widely used in the chemical industry as raw materials for pesticides, explosives and other chemical products, which cause environmental pollution, especially water pollution, thus posing a threat to living organisms. [1][2][3][4][5] 4-Nitrophenol (4-NP) is a nitroaromatic with common toxicity, which is difficult to degrade in nature and can accumulate in living organisms over a long period of time. The US Environmental Protection Agency has reported that 4-NP is carcinogenic, hepatotoxic and mutagenic, posing a significant risk to human life and health, and it has been placed on the US EPA's Priority Pollution List.…”

Section: Introductionmentioning

confidence: 99%

Facile synthesis of C30-AuNPs for the effective catalytic reduction of nitrophenols and azo dyes

Sun,

Zang,

Zhang

et al. 2024

New J. Chem.

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“…13,14 Moreover, they are abundant in nature, less toxic, eco-friendly, and rich in redox chemistry; therefore, they would be promising electrodes for energy storage and conversion. 15 Likewise, metal sulfides have lower intrinsic electrical resistivity than the other transition metals. Subsequently, it would ease charge transfer during the electrocatalytic activity.…”

Section: Introductionmentioning

confidence: 99%

“…have been used for the oxygen evolution reaction (OER) and hydrogen evolution reaction (HER). − However, metal oxides are extensively used in water splitting applications; nevertheless, their cost was moderate and they were unstable for long time . Compared to metal oxides, metal sulfides are cheaper and exhibit excellent stability because of their distinctive physico-chemical nature like high electrical conductivity and brilliant thermal and mechanical stability. , Moreover, they are abundant in nature, less toxic, eco-friendly, and rich in redox chemistry; therefore, they would be promising electrodes for energy storage and conversion . Likewise, metal sulfides have lower intrinsic electrical resistivity than the other transition metals.…”

Section: Introductionmentioning

confidence: 99%

Ternary Copper Iron Sulfide Microflowers Anchored on Reduced Graphene Oxide for Water Splitting

Swathi

Yuvakkumar

Ravi

et al. 2023

ACS Appl. Nano Mater.

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Transition metal sulfides are widely employed as bifunctional electrocatalysts owing to their unique structural features, well-off active sites, and modifiable electronic and mechanical properties. Herein, we have synthesized highly efficient ternary copper iron sulfide (CuFeS 2 )/reduced graphene oxide (rGO) composites via a hydrothermal approach for an overall water splitting process. The tetragonal structure of CuFeS 2 microflowers anchored on rGO sheets is identified by using Xray analysis and compared with standard Joint Committee on Powder Diffraction Standards (JCPDS) #35-752. In Raman spectra, the existence of two bands D (defects) and G (graphitic) confirms the presence of the rGO composite with CuFeS 2, and the ratio of D and G band (I D /I G ) is observed to be 1.18. The morphological analysis using scanning electron microscopy and transmission electron microscopy substantiates the formation of microflowers with rGO sheets. The elemental composition of CuFeS 2 /rGO was analyzed by energy-dispersive X-ray analysis, which demonstrated a weight percentage of various compositions of Cu (18.07%), Fe (11.32%), S (13.88%), and C (56.74%). Moreover, the CuFeS 2 /rGO composites exhibited a high surface area, pore volume, and diameter of 50.352 m 2 /g, 0.162 cc/g, and 2.471 nm, respectively. The fabricated electrodes were examined by using electrochemical characterization. The obtained results clearly showed low overpotential and low Tafel slope values in both the oxygen evolution reaction (OER) (176 mV and 216 mV/dec) and hydrogen evolution reaction (HER) (153 mV and 150 mV/dec) processes. In addition, the fabricated composite exhibited low 1.59 V cell voltages for an overall water splitting process with more excellent stability, and it showed a faradaic efficiency of 97.8% for H 2 and 95.5% for O 2 . Therefore, the composite of rGO in ternary metal sulfide plays a predominant role in improving the electrocatalytic activity of the material, and the CuFeS 2 /rGO composite emerges as a promising electrode for the water splitting process.

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In-situ synthesis of metal oxide and polymer decorated activated carbon-based photocatalyst for organic pollutants degradation

Cited by 37 publications

References 62 publications

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

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

Facile synthesis of C30-AuNPs for the effective catalytic reduction of nitrophenols and azo dyes

Ternary Copper Iron Sulfide Microflowers Anchored on Reduced Graphene Oxide for Water Splitting

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