A novel synthesis of MnO<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e270" altimg="si5.svg"><mml:msub><mml:mrow/><mml:mrow><mml:mi mathvariant="bold">2</mml:mi></mml:mrow></mml:msub></mml:math>, nanoflowers as an efficient heterogeneous catalyst for oxidative desulfurization of thiophenes

Alheety, Mustafa A.; Al‐Jibori, Subhi A.; Karadağ, Ahmet; Akbaş, Hüseyin; Ahmed, Mukhtar H.

doi:10.1016/j.nanoso.2019.100392

Cited by 62 publications

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“…The as‐prepared samples exhibited an outstanding photocatalytic performance for methylene blue (MB) and eosin yellow (EY) degradation. 3D δ‐MnO 2 nanoflower have also been fabricated for the oxidative desulfurization of thiophenes, [ 90 ] the removal of lead (PB) ions, [ 91 ] the removal of soot, [ 92 ] and tetracycline degradation. [ 93 ]…”

Section: Modification Of Mno2 Single Species Nanomaterialsmentioning

confidence: 99%

MnO₂‐Based Materials for Environmental Applications

et al. 2021

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Manganese dioxide (MnO2) is a promising photo–thermo–electric‐responsive semiconductor material for environmental applications, owing to its various favorable properties. However, the unsatisfactory environmental purification efficiency of this material has limited its further applications. Fortunately, in the last few years, significant efforts have been undertaken for improving the environmental purification efficiency of this material and understanding its underlying mechanism. Here, the aim is to summarize the recent experimental and computational research progress in the modification of MnO2 single species by morphology control, structure construction, facet engineering, and element doping. Moreover, the design and fabrication of MnO2‐based composites via the construction of homojunctions and MnO2/semiconductor/conductor binary/ternary heterojunctions is discussed. Their applications in environmental purification systems, either as an adsorbent material for removing heavy metals, dyes, and microwave (MW) pollution, or as a thermal catalyst, photocatalyst, and electrocatalyst for the degradation of pollutants (water and gas, organic and inorganic) are also highlighted. Finally, the research gaps are summarized and a perspective on the challenges and the direction of future research in nanostructured MnO2‐based materials in the field of environmental applications is presented. Therefore, basic guidance for rational design and fabrication of high‐efficiency MnO2‐based materials for comprehensive environmental applications is provided.

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Section: Modification Of Mno2 Single Species Nanomaterialsmentioning

confidence: 99%

MnO₂‐Based Materials for Environmental Applications

et al. 2021

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“…Additionally, part of the fuel gets into the extract in the course of separation of the liquid phase. This problem can be solved by using peroxide oxidants soluble in the fuel [43]. The hydroperoxides of tert-amyl, tert-butyl, and cumene in the presence of lower carboxylic acids ensure the formation of oxidized forms of sulfur-containing compounds from the oil fractions with output of up to 94% [44].…”

Section: Components For the Formation Of Nanostructured Catalysts Oxidants And Extractants For Oxidative Desulfurization Of Liquid Fuelsmentioning

confidence: 99%

“…The NCs are usually modified in order to stabilize them, to enhance their activity, to increase the catalyst/reagent contact surface, to impart the magnetic properties to the catalysts (in order to facilitate the extraction of the NCs from the reaction medium) (Tables 1 and 2). For known NCs based on metal oxides the ODS efficiency depends on the combination of NC/carrier/oxidant and decreases in the series: 1 and 2) [7,20,43,59].…”

Section: Components For the Formation Of Nanostructured Catalysts Oxidants And Extractants For Oxidative Desulfurization Of Liquid Fuelsmentioning

confidence: 99%

“…According to the mechanisms of catalytic reactions suggested by the researchers, NCs most often act as oxygen transfer agents, are converted into peroxide particles, or facilitate dissociation of the oxidant, and ensure selective oxidation of sulfur-containing compounds [25,27,43,48,53,57,[74][75][76][83][84][85]. It was shown using the examples of 4PW 11 Fe@PbO nanocatalyst and H 2 O 2 /CH 3 COOH oxidant that the kinetics of sulfur oxidation in the course of ODS is of the pseudo first-order type [27].…”

Section: Components For the Formation Of Nanostructured Catalysts Oxidants And Extractants For Oxidative Desulfurization Of Liquid Fuelsmentioning

confidence: 99%

“…Many NCs can be successfully separated from the reaction medium upon the completion of oxidation and extraction of the oxidized forms of sulfur, and can therefore be used for at least 3-5 cycles. This is an indisputably important feature when the perspectives of industrial application are considered [43,51,52,56,61,64,65]. For example, after the processes, the NCs can be separated with a simple filtration method, washed with ethanol or water and reused for several new runs [25].…”

Section: Components For the Formation Of Nanostructured Catalysts Oxidants And Extractants For Oxidative Desulfurization Of Liquid Fuelsmentioning

confidence: 99%

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Nanocatalysts for Oxidative Desulfurization of Liquid Fuel: Modern Solutions and the Perspectives of Application in Hybrid Chemical-Biocatalytic Processes

et al. 2021

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In this paper, the current advantages and disadvantages of using metal-containing nanocatalysts (NCs) for deep chemical oxidative desulfurization (ODS) of liquid fuels are reviewed. A similar analysis is performed for the oxidative biodesulfurization of oil along the 4S-pathway, catalyzed by various aerobic bacterial cells of microorganisms. The preferences of using NCs for the oxidation of organic sulfur-containing compounds in various oil fractions seem obvious. The text discusses the development of new chemical and biocatalytic approaches to ODS, including the use of both heterogeneous NCs and anaerobic microbial biocatalysts that catalyze the reduction of chemically oxidized sulfur-containing compounds in the framework of methanogenesis. The addition of anaerobic biocatalytic stages to the ODS of liquid fuel based on NCs leads to the emergence of hybrid technologies that improve both the environmental characteristics and the economic efficiency of the overall process. The bioconversion of sulfur-containing extracts from fuels with accompanying hydrocarbon residues into biogas containing valuable components for the implementation of C-1 green chemistry processes, such as CH4, CO2, or H2, looks attractive for the implementation of such a hybrid process.

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Labile silver(I) complexes with benzisothiazolinone anion and phosphines: Synthesis, characterization and hydrogen storage application

Alheety,

Aljibori,

Nuaman

et al. 2024

Energy Storage

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A silver complex was prepared with benzisothiazolinone ligand, which was used to prepare new phosphorus‐rich complexes with dppe and dppp. All complexes were diagnosed by FTIR, 1H‐NMR, 31P‐NMR, CHN, and molar conductivity. The results proved that phosphines were labile, therefore 31P‐NMR was measured by cryoprotection at different temperatures. As a promoted effort to obtain direct experimental proof for the dimeric and the labile nature of [Ag(bit)(diphos)]2 complexes in solution, the 31P{1H}‐NMR spectrum of mixed (dppe/dppp) ligand complexes was measured. It was anticipated that an exchange of phosphines occurred between [Ag(bit)(dppe)]2 and [Ag(bit)(dppp)]2 complexes. However, a distribution of the dppp and dppe should result, and complex with compositions of [Ag2(bit)2(dppe)(dppp)] will be formed. The phosphine‐containing complexes were used in hydrogen storage study. The results proved that hydrogen storage values were initially similar for [Ag(bit)(dppp)]2 and [Ag(bit)(dppe)]2, but increased significantly for [Ag(bit)(dppe)]2 at higher pressures to reach 4.35 wt% at 90 bar.

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A novel synthesis of MnO2, nanoflowers as an efficient heterogeneous catalyst for oxidative desulfurization of thiophenes

Cited by 62 publications

References 47 publications

MnO₂‐Based Materials for Environmental Applications

MnO₂‐Based Materials for Environmental Applications

Nanocatalysts for Oxidative Desulfurization of Liquid Fuel: Modern Solutions and the Perspectives of Application in Hybrid Chemical-Biocatalytic Processes

Labile silver(I) complexes with benzisothiazolinone anion and phosphines: Synthesis, characterization and hydrogen storage application

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A novel synthesis of MnO2, nanoflowers as an efficient heterogeneous catalyst for oxidative desulfurization of thiophenes

Cited by 62 publications

References 47 publications

MnO2‐Based Materials for Environmental Applications

MnO2‐Based Materials for Environmental Applications

Nanocatalysts for Oxidative Desulfurization of Liquid Fuel: Modern Solutions and the Perspectives of Application in Hybrid Chemical-Biocatalytic Processes

Labile silver(I) complexes with benzisothiazolinone anion and phosphines: Synthesis, characterization and hydrogen storage application

Contact Info

Product

Resources

About

MnO₂‐Based Materials for Environmental Applications

MnO₂‐Based Materials for Environmental Applications