Design and performance of polypyrrole/halloysite nanotubes/Fe3O4/Ag/Co nanocomposite for photocatalytic degradation of methylene blue under visible light irradiation

Rouhi, Mojtaba; Babamoradi, Mohsen; Hajizadeh, Zoleikha; Maleki, Ali; Maleki, Sajjad Tabar

doi:10.1016/j.ijleo.2020.164721

Cited by 43 publications

(18 citation statements)

References 35 publications

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“…Visible light sensitization is a popular and efficient photocatalysis mechanism that saves energy. The materials doping with Ag, Co, and TiO 2 in small portions significantly enhance photocatalytic activity through the inhibition of electron recombination [78,82]. As photocatalysts have good capability in the visible light region, this photocatalytic process could be sunlight-driven.…”

Section: Photocatalytic and Catalytic Degradation Of Organic Pollutantsmentioning

confidence: 99%

Magnetic iron oxide/clay nanocomposites for adsorption and catalytic oxidation in water treatment applications

et al. 2020

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Physical and chemical methods have been developed for water and wastewater treatments. Adsorption is an attractive method due to its simplicity and low cost, and it has been widely employed in industrial treatment. In advanced schemes, chemical oxidation and photocatalytic oxidation have been recognized as effective methods for wastewater-containing organic compounds. The use of magnetic iron oxide in these methods has received much attention. Magnetic iron oxide nanocomposite adsorbents have been recognized as favorable materials due to their stability, high adsorption capacities, and recoverability, compared to conventional sorbents. Magnetic iron oxide nanocomposites have also been reported to be effective in photocatalytic and chemical oxidation processes. The current review has presented recent developments in techniques using magnetic iron oxide nanocomposites for water treatment applications. The review highlights the synthesis method and compares modifications for adsorbent, photocatalytic oxidation, and chemical oxidation processes. Future prospects for the use of nanocomposites have been presented.

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Section: Photocatalytic and Catalytic Degradation Of Organic Pollutantsmentioning

confidence: 99%

Magnetic iron oxide/clay nanocomposites for adsorption and catalytic oxidation in water treatment applications

et al. 2020

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“…[ 22 ] Generally speaking, combining magnetite nanoparticles (NPs) with natural or modified biopolymer chains gives rise to novel materials possessing consecutive improvement [ 23,24 ] in electrical, [ 25 ] thermal, [ 26 ] and mechanical [ 23 ] hosting material properties. Magnetite‐functionalized biopolymers seem to be easily eco‐friendly and recyclable green catalysts in organic compounds synthesis, [ 27–38 ] cancer therapy, [ 39 ] heavy metals removal [ 40–42 ] dyes degradation, [ 12,13,43 ] and epoxidation and oxidation catalytic processes. [ 44 ]…”

Section: Introductionmentioning

confidence: 99%

New sonochemical magnetite nanoparticles functionalization approach of dithiooxamide–formaldehyde developed cellulose: From easy synthesis to recyclable 4‐nitrophenol reduction

Mehdaoui

Agren

Dhahri

et al. 2021

Applied Organom Chemis

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Magnetic [FA‐c‐(C‐DTX)@Fe3O4] nanocomposites have been prepared with a four‐step technique involving three mechanical stirring conventional steps to obtain [(FA‐c‐(DTX‐g‐DAC)] and an ultrasound‐assisted Fe3O4 coating approach to fabricate [FA‐c‐(C‐DTX)@Fe3O4]. Magnetic nanoparticles (NPs) (Fe3O4 NPs) synthesis and integration has been easily and rapidly approached under novel environmentally friendly optimized reaction conditions: an ethanol–water solution, one iron precursor use, short reaction time, low temperature, and an ultrasonic irradiation process. This new condition's unique combination is attributed to our new synthesis procedure. Sonochemically synthetisized [FA‐c‐(C‐DTX)@Fe3O4] were easily separated from the reaction mixture simply via external magnetic field application, and therefore, neither filtration nor centrifigation was required. The synthetisized samples have been investigated by Fourier transform infrared (FTIR) spectroscopy, nuclear magnetic resonance (NMR) spectroscopy, X‐ray photoelectron spectroscopy (XPS), X‐ray diffraction (XRD), thermogravimetry analysis (TGA), scanning electron microscopy (SEM), and vibrating‐sample magnetometry (VSM). Obtained outcomes including successful magnetite coating process, good crystallinity, homogenous morphology, enhanced thermal stability, and obvious magnetic properties suggested the potential of sonochemical procedure to fabricate and integrate magnetic NPs. This sonochemically synthesized catalyst was evaluated toward the reduction of the organic pollutant 4‐nitrophenol and showed excellent catalytic activity. This ultrasound‐assisted nanocomposites preparation is simply scalable to meet industrial application.

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“…Multicomponent reactions being atom economic, efficient, and extremely convergent in nature offer a number of advantages over stepwise sequential approaches [ 15–17 ] and could be performed in the presence of nanocatalyst and produce heterocyclic compounds. [ 18–20 ] Among the heterocyclic compounds, pyrrolobenzodiazepines (PBDs) are a family of naturally occurring antitumor antibiotics, [ 21 ] and completely synthetic PBD dimmers have been developed that crosslink DNA in a sequence‐selective fashion, leading to cell cycle arrest (G2/M boundary) and apoptosis at picomolar concentrations of drug. [ 22,23 ] Transition metal oxides nanostructures due to their unique features such as high specific surface area, chemical stability, and electrochemical activity at nanoscale with promising applications in applied science and technology [ 24–26 ] have been broadly utilized.…”

Section: Introductionmentioning

confidence: 99%

Green synthesis and evaluation of antioxidant and antimicrobial activity of new dihydropyrroloazepines: Using bio‐Ag/CdO/ZnO@MWCNTs nanocomposites as a reusable organometallic catalyst

Noushin

Varasteh-Moradi

Sayyed-Alangi

et al. 2021

Applied Organom Chemis

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In this study a new, economical and green method was reported for the synthesis of Ag/CdO/ZnO@MWCNTs nanocomposites (Ag/CdO/ZnO@MWCNTs NCs) as a new heterogeneous catalyst. For confirming the structure of synthesized nanocatalyst, XRD, FESEM, EDX, and TEM analyses were utilized. The Ag/CdO/ZnO@MWCNTs NCs as a high performance catalyst were employed for the preparation of a new family of substituted dihydropyrroloazepines using the one‐pot condensation reactions of isatin, ammonium acetate, α‐haloketones, and activated acetylenic compounds in water at room temperature. Another work in this research is investigation of antioxidant property of some synthesized compounds by diphenyl‐picrylhydrazine (DPPH) radical trapping experiment. Presently, bacteria that are not destroyed with drug have generated many problems in the performance of many transferable disease. For this reason, discovering appropriate and new procedures for the dealing with these pathogens is important, and recent study has focused on the investigation of the antibacterial effects on the prepared compounds.

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Design and performance of polypyrrole/halloysite nanotubes/Fe3O4/Ag/Co nanocomposite for photocatalytic degradation of methylene blue under visible light irradiation

Cited by 43 publications

References 35 publications

Magnetic iron oxide/clay nanocomposites for adsorption and catalytic oxidation in water treatment applications

Magnetic iron oxide/clay nanocomposites for adsorption and catalytic oxidation in water treatment applications

New sonochemical magnetite nanoparticles functionalization approach of dithiooxamide–formaldehyde developed cellulose: From easy synthesis to recyclable 4‐nitrophenol reduction

Green synthesis and evaluation of antioxidant and antimicrobial activity of new dihydropyrroloazepines: Using bio‐Ag/CdO/ZnO@MWCNTs nanocomposites as a reusable organometallic catalyst

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