Fabrication of efficient CuO / graphitic carbon nitride based heterogeneous photo-Fenton like catalyst for degradation of 2, 4 dimethyl phenol

Sharma, Kirti; Raizada, Pankaj; Hosseini-Bandegharaei, Ahmad; Thakur, Pankaj; Kumar, Rajesh; Thakur, Vijay Kumar; Nguyen, Van Huy; Singh, Pardeep

doi:10.1016/j.psep.2020.06.003

Cited by 86 publications

(25 citation statements)

References 62 publications

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“…The template creates a porous structure that favours particle interconnectivity, prevents photo-induced electron/hole recombination, and enhances TC molecules' adsorption. [35,55]. Also, two satellite peaks were observed at 942 and 962.2 eV, which correspond to the d9 configuration of Cu 2+ confirming the existence of CuO; this observation was similar to what has been reported previously [28,56].…”

Section: Field Emission-scanning Electron Microscopy (Fe-sem) Analysissupporting

confidence: 90%

“…The crystalline phases of the synthesized CuO/C, Fe 3 O 4 , and Fe 3 O 4 /CuO/C were confirmed using X-ray diffraction analysis, and the results are presented in Figure 1. For CuO/C (Figure 1a), the diffraction peaks were observed at 2θ = 32.5 (110), 35 [47]. In addition, there are no impure peaks, indicating that the cornstalk's natural carbon components have been destroyed.…”

Section: X-ray Diffraction (Xrd) Analysismentioning

confidence: 99%

“…CuO is a promising option for the production of the visible-light-driven catalyst since it is a p-type semiconductor with a low bandgap of 1.7 eV and is suitable for capturing solar light energy [30][31][32][33][34]. Other distinguishing properties of CuO such as high abundance, relatively inexpensive, low toxicity, straightforward multiple ways of preparation, and its environmentally benign character have made the metal oxide appropriate for use in a wide range of fields including solar energy, semiconductors, lithium-ion batteries, memory devices, and field-effect transistors, and photocatalysts [28,[35][36][37]. Therefore, we are convinced that binary complexes of Fe-CuO like heterojunction architectures can boost heterogeneous Fenton activity because the photoinduced electron produced by the metal oxides will allow for a long-term Fe 3+ /Fe 2+ cycling reaction and enhance efficient utilization of visible light.…”

Section: Introductionmentioning

confidence: 99%

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Visible-Light-Driven Bio-Templated Magnetic Copper Oxide Composite for Heterogeneous Photo-Fenton Degradation of Tetracycline

Alani

Ari

Alani³

et al. 2021

Water

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The development of a visible-light-driven, reusable, and long-lasting catalyst for the heterogeneous photo-Fenton process is critical for practical application in the treatment of contaminated water. This study focuses on synthesizing a visible-light-driven heterogenous bio-templated magnetic copper oxide composite (Fe3O4/CuO/C) by a two-step process of bio-templating and hydrothermal processes. The prepared composite was characterized by field emission-scanning electron microscope (FE-SEM), Fourier-transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), X-ray photoelectron spectroscopy (XPS), electrical impedance spectroscopy (EIS), and vibrating sample magnetometer (VSM). The results reveal that the prepared composite retains the template’s (corn stalk’s) original porous morphology, and a substantial amount of CuO and Fe3O4 particles are loaded onto the surface of the template. The prepared Fe3O4/CuO/C composite was employed as a catalyst for heterogeneous photo-Fenton degradation of tetracycline (TC) irradiated by visible light. The prepared Fe3O4/CuO/C catalyst has high efficiency towards TC degradation within 60 min across a wide pH range irradiated by visible light, which is attributed to its readily available interfacial boundaries, which significantly improves the movement of photoexcited electrons across various components of the prepared composite. The influence of other parameters such as initial H2O2 concentration, initial concentration of TC, and catalyst dosages was also studied. In addition to high efficiency, the prepared catalyst’s performance was sustained after five cycles, and its recovery is aided by the use of an external magnetic field. This research paper highlights the development of a heterogeneous catalyst for the elimination of refractory organic compounds in wastewater.

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Section: Field Emission-scanning Electron Microscopy (Fe-sem) Analysissupporting

confidence: 90%

Section: X-ray Diffraction (Xrd) Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Visible-Light-Driven Bio-Templated Magnetic Copper Oxide Composite for Heterogeneous Photo-Fenton Degradation of Tetracycline

Alani

Ari

Alani³

et al. 2021

Water

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“…For the photocatalytic disinfection of water from microorganisms, it is essential to develop efficient photocatalysts that exhibit high antimicrobial activity under solar irradiation. Different types of photocatalysts, e.g., ZnO, CuO, TiO 2 , Fe 3 O 4 , and carbon-based materials in pure as well as composite form, have been developed for environmental and photocatalytic water disinfection applications. ,,− Plasmonic Ag NPs decorated with ZnO were used by Yudha et al for inactivation of E. coli and degradation of rhodamine B in water . Here, the presence of Ag improved the inactivation of E. coli and degradation of rhodamine B in comparison to pristine ZnO under UV illumination.…”

Section: Antibacterial and Antiviral Properties Of Nanomaterialsmentioning

confidence: 99%

Antibacterial and Antiviral Functional Materials: Chemistry and Biological Activity toward Tackling COVID-19-like Pandemics

Balasubramaniam

Prateek

Ranjan

et al. 2020

ACS Pharmacol. Transl. Sci.

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211

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The ongoing worldwide pandemic due to COVID-19 has created awareness toward ensuring best practices to avoid the spread of microorganisms. In this regard, the research on creating a surface which destroys or inhibits the adherence of microbial/viral entities has gained renewed interest. Although many research reports are available on the antibacterial materials or coatings, there is a relatively small amount of data available on the use of antiviral materials. However, with more research geared toward this area, new information is being added to the literature every day. The combination of antibacterial and antiviral chemical entities represents a potentially path-breaking intervention to mitigate the spread of disease-causing agents. In this review, we have surveyed antibacterial and antiviral materials of various classes such as small-molecule organics, synthetic and biodegradable polymers, silver, TiO2, and copper-derived chemicals. The surface protection mechanisms of the materials against the pathogen colonies are discussed in detail, which highlights the key differences that could determine the parameters that would govern the future development of advanced antibacterial and antiviral materials and surfaces.

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“…The Cu@Cu 2 O/C-28 nanocomposite has the strongest peak at 1112 cm −1 , indicating that Cu@Cu 2 O/C-28 contains a larger content of Cu 2 O, which is consistent with the XRD result. 35 Raman spectroscopy is an important and nondestructive tool to investigate the structural arrangement of C(sp 2 ) sites in amorphous carbon films. 36 As shown in Figure 3C, the Raman spectra of Cu@Cu 2 O/C nanocomposites were performed in the range of 400−3000 cm −1 , in which all of the samples exhibit similar amorphous carbon networks.…”

Section: ■ Experimental Sectionmentioning

confidence: 99%

Anchoring Core–Shell Cu@Cu₂O Nanoparticles to Two-Dimensional Carbon Nanosheets for Bacterial Disinfection

Sun

Jia

Zhang

et al. 2021

ACS Appl. Nano Mater.

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The unique physicochemical properties and relatively higher biosafety endow carbon-based nanomaterials with much worldwide attention. However, studies of the synthesis and functionalization of carbon nanosheets are still very limited, which largely impedes the development of carbon-based materials for antibacterial applications. In this work, carbon nanosheets decorated with core−shell Cu@Cu 2 O nanoparticles (Cu@Cu 2 O/ C) were prepared by a facial hydrothermal method using copper Dgluconate. The in situ-generated carbon nanosheets feature a homogeneous size distribution with an average diameter of 3 μm and thickness of 5 nm. The particle size of Cu@Cu 2 O is mainly distributed between 10.5 and 13.5 nm. Particularly, these nanosheets could not only effectively anchor Cu@Cu 2 O core− shell structured nanoparticles but also bring more edge active sites, which could promote the generation of free radicals. The asprepared Cu@Cu 2 O/C verified by varieties of characterizations were used as antibacterial samples to kill the Gram-negative bacterium Escherichia coli and the Gram-positive bacterium S. aureus with antibacterial efficiencies of up to 100 and 96.0%, respectively, within 12 min in the dark condition. A possible antibacterial mechanism of the • OH-dominated radical combined with the sharp edges of carbon nanosheets was confirmed by a series of control experiments. Overall, the present work provides a simple strategy to prepare carbon-based antibacterial agents, which sheds light on the understanding of the antibacterial mechanism of carbon-based nanomaterials.

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Fabrication of efficient CuO / graphitic carbon nitride based heterogeneous photo-Fenton like catalyst for degradation of 2, 4 dimethyl phenol

Cited by 86 publications

References 62 publications

Visible-Light-Driven Bio-Templated Magnetic Copper Oxide Composite for Heterogeneous Photo-Fenton Degradation of Tetracycline

Visible-Light-Driven Bio-Templated Magnetic Copper Oxide Composite for Heterogeneous Photo-Fenton Degradation of Tetracycline

Antibacterial and Antiviral Functional Materials: Chemistry and Biological Activity toward Tackling COVID-19-like Pandemics

Anchoring Core–Shell Cu@Cu₂O Nanoparticles to Two-Dimensional Carbon Nanosheets for Bacterial Disinfection

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Fabrication of efficient CuO / graphitic carbon nitride based heterogeneous photo-Fenton like catalyst for degradation of 2, 4 dimethyl phenol

Cited by 86 publications

References 62 publications

Visible-Light-Driven Bio-Templated Magnetic Copper Oxide Composite for Heterogeneous Photo-Fenton Degradation of Tetracycline

Visible-Light-Driven Bio-Templated Magnetic Copper Oxide Composite for Heterogeneous Photo-Fenton Degradation of Tetracycline

Antibacterial and Antiviral Functional Materials: Chemistry and Biological Activity toward Tackling COVID-19-like Pandemics

Anchoring Core–Shell Cu@Cu2O Nanoparticles to Two-Dimensional Carbon Nanosheets for Bacterial Disinfection

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Product

Resources

About

Anchoring Core–Shell Cu@Cu₂O Nanoparticles to Two-Dimensional Carbon Nanosheets for Bacterial Disinfection