Electrocatalytic reduction of metronidazole using titanocene/Nafion®-modified graphite felt electrode

Saidi, I.; Soutrel, Isabelle; Fourcade, Florence; Amrane, Abdeltif; Bellakhal, Nizar; Geneste, Florence

doi:10.1016/j.electacta.2016.01.163

Cited by 17 publications

(7 citation statements)

References 29 publications

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“…It was obvious that HAP has the typical characteristic peaks located at 2θ=25.9°, 31 [35]. This result further confirmed the successful synthesis process of HAP.…”

Section: Characterization Of Rod-like Hap Nanoparticles and Hap-nafiosupporting

confidence: 88%

Rod-like hydroxyapatite and Nafion nanocomposite as an electrochemical matrix for simultaneous and sensitive detection of Hg2+, Cu2+, Pb2+ and Cd2+

Gao

Nishitani

et al. 2016

Journal of Electroanalytical Chemistry

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“…It was obvious that HAP has the typical characteristic peaks located at 2θ=25.9°, 31 [35]. This result further confirmed the successful synthesis process of HAP.…”

Section: Characterization Of Rod-like Hap Nanoparticles and Hap-nafiosupporting

confidence: 88%

Rod-like hydroxyapatite and Nafion nanocomposite as an electrochemical matrix for simultaneous and sensitive detection of Hg2+, Cu2+, Pb2+ and Cd2+

Gao

Nishitani

et al. 2016

Journal of Electroanalytical Chemistry

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“…11 Researchers also found that incorporation of Al 2 O 3 nano-particles enhanced the mechanical properties of polymers. 31,32 Hassan et al compared the effects of two differently shaped Al 2 O 3 nano-particles (spherical and whisker) on the mechanical properties of PMMA denture base; both nano-particles improved the mechanical properties of the composites. In particular, the mechanical properties were significantly enhanced after the addition of whiskers at volume fraction of 3 wt.…”

Section: Introductionmentioning

confidence: 99%

“…35 Patel et al synthesized and investigated the thermal and mechanical properties of PC(polycarbonate)/PMMA-Al 2 O 3 nano-composites using Al 2 O 3 nano-particles (with size of 10-20 nm); the results showed an improvement in both mechanical and thermal properties. 32 Foroutan et al compared the effects of using microand nano-sized Al 2 O 3 particles as reinforcing fillers on the mechanical properties of dental composite samples. In general, the use of nano-sized Al 2 O 3 considerably improved the mechanical properties of the composites.…”

Section: Introductionmentioning

confidence: 99%

Effect of nano- and micro-alumina fillers on some properties of poly(methyl methacrylate) denture base composites

2018

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This research investigated the effects of alumina (Al 2 O 3 ) micro-and nano-particles on poly(methyl methacrylate) (PMMA) denture base. Al 2 O 3 was surface treated using (3-methacryloxypropyl)trimethoxysilane (γ-MPS), added to methyl methacrylate (MMA), and mixed with PMMA powder. The filler volume fractions in the micro-composites were 0.5, 1, 2, 5 and 7 wt. %, whereas those in the nano-composites were 0.13, 0.25, 0.5, 1, 2 and 5 wt. %. The treated fillers were examined using Fourier transform infrared spectroscopy (FTIR). The influence of filler size and loading on mechanical properties was studied using fracture toughness and flexural tests. The thermal stability of the PMMA/Al 2 O 3 composites was investigated using thermogravimetric analysis (TGA). In addition, the water absorption and solubility characteristic of the prepared composites was also investigated. The FTIR spectra showed new absorption bands, indicating the occurrence of surface modifications. Both micro-and nanoscale particles showed increased fracture toughness. The maximum value of 2.02 MPa·m 1/2 was achieved with the addition of 0.5 wt. % nano-Al 2 O 3 , which accounts for a 39 % increase. In contrast to the flexural strength, the flexural modulus improved with increasing filler content. The micro-composites showed higher thermal stability than nano-composites. The water absorption and solubility of the prepared composites were slightly higher than those of the control. The use of low concentrations of Al 2 O 3 nanoparticles may be of considerable interest in future studies to improve the mechanical properties of PMMA denture base.

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“…Acetanilide and methoxyl groups have been suspected to be linked to the biorecalcitrance of the molecule. The reduction of nitro groups into amine has also proven its efficiency to improve the biodegradability of nitromethane [30] and nitroimidazole drugs [31][32][33]. Nitroaromatic compounds are known to give hydroxylamine derivatives by a four-electron reduction process in aqueous medium (Scheme 2).…”

Section: A N U S C R I P Tmentioning

confidence: 99%

Catalytic electrochemical pre-treatment for the degradation of persistent organic pollutants

Geneste

2018

Current Opinion in Electrochemistry

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Highlights  Improvement of biodegradability by catalytic electrochemical processes  Coupling a catalytic electrochemical pre-treatment with a biological process for remediation  Targeting specific functional groups to improve the biodegradability of persistent compounds  Indirect electrolysis and electrocatalysis as selective and well-controlled pretreatments ACCEPTED MANUSCRIPTElectrochemical advanced oxidation processes have been widely explored for the total degradation of biorecalcitrant compounds such as some pesticides and pharmaceuticals. More recently, coupling processes involving an electrochemical pre-treatment followed by a biological process have been proposed as cost-effective and reliable remediation methods for the mineralization of persistent compounds. This open the way to more selective electrochemical methods than those involving hydroxyl radicals since the aim of the pretreatment is no more to achieve the total mineralization of non-biodegradable species, but is only the improvement of their biodegradability focusing on functional groups known to reduce it. In this context, catalytic electrochemical reductions and oxidations can find their place in a coupling process for the remediation of biorecalcitrant compounds as selective and well-controlled methods. This review summarizes some relevant and recent work on catalytic electrochemical processes performed in aqueous medium that have been used to improve the biodegradability of persistent organic pollutants.

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Electrocatalytic reduction of metronidazole using titanocene/Nafion®-modified graphite felt electrode

Cited by 17 publications

References 29 publications

Rod-like hydroxyapatite and Nafion nanocomposite as an electrochemical matrix for simultaneous and sensitive detection of Hg2+, Cu2+, Pb2+ and Cd2+

Rod-like hydroxyapatite and Nafion nanocomposite as an electrochemical matrix for simultaneous and sensitive detection of Hg2+, Cu2+, Pb2+ and Cd2+

Effect of nano- and micro-alumina fillers on some properties of poly(methyl methacrylate) denture base composites

Catalytic electrochemical pre-treatment for the degradation of persistent organic pollutants

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