Preparation of 3D PbO 2 nanospheres@SnO 2 nanowires/Ti Electrode and Its Application in Methyl Orange Degradation

Li, Xin; Li, Xueming; Yang, Wenjing; Chen, Xiaohua; Li, Wulin; Luo, Binbin; Wang, Kuilong

doi:10.1016/j.electacta.2014.08.150

Cited by 52 publications

(17 citation statements)

References 44 publications

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“…They contain platinum and modified Titanium (Ti) coated with ceramic metal oxides film and nanomaterials. These group of electrodes were used for removal toxic compounds and metal ions such as; copper [43], ammonium nitrogen [44] and textile dyes [45][46][47][48][49][50][51][52][53][54]. The metal oxide-film electrodes such as tin oxide has good electro-catalytic properties related to chemical composition, the electronic structure and crystallinity of the oxide layer.…”

Section: Introductionmentioning

confidence: 99%

Novel Ti/TiHx/SnO2-Sb2O5-NiO-CNT electrode for electrochemical Ozone Generation for degradation of toxic textile azo dyes

Karimi

Bidoki

Benvidi

2021

Environmental Engineering Research

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Water pollution control and the development of clean technologies for water, air and soil treatments comprise one of the most important challenges for modern society. Ozone is known as a strong and clean oxidizing agent that can be used for water and wastewater treatment. In this research, a novel Ti/TiHx/SnO2-Sb2O5-NiO-CNT modified titanium electrode containing carbon nanotubes (CNT) was fabricated for in-situ ozone generation. The electrode was characterized using SEM, XRD and LSV techniques. CNT presence caused an increase in ozone generation efficiency leading to the higher concentrations of dissolved ozone in water compared to the recently reported researchers. Ozone generation at the surface of the electrode was determined using the standard indigo method. Electrochemical ozone was further used in degradation of C.I. Reactive red 195 (RR 195). It was found that the modified electrode could degrade 96% of RR 195 from initial concentration of 300 mg∙L<sup>-1</sup> in 30 min under current density of 20 mA∙cm<sup>-2</sup>. COD removal was also measured as high as 60 percent.

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Section: Introductionmentioning

confidence: 99%

Novel Ti/TiHx/SnO2-Sb2O5-NiO-CNT electrode for electrochemical Ozone Generation for degradation of toxic textile azo dyes

Karimi

Bidoki

Benvidi

2021

Environmental Engineering Research

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“…In this sense, b-PbO 2 is one of the most investigated anode materials concerning both inorganic [10,19e22] and organic [23,24] doping, modification of the Ti substrate to avoid migration of the ion O 2À (e.g. using Pt [25,26] or oxide [20,24,27] coatings, some of them nanostructured [10,28]), usage of 3D substrates [29e31] or graphene interlayers [32], and changes in the b-phase morphology [33] to increase the film stability and the mineralization efficiency in the organics degradation. The use of transition metals as inorganic dopants of b-PbO 2 has led to an increase in its electrocatalytic power for organics oxidation [10,20,21], whereas the use of fluoride ion-based electrolytes [34] and fluorine-based polymers (polyvinylidene difluoride e PVDF [23,24] or polytetrafluoroethylene e PTFE [35]) in the electrodeposition bath have led to b-PbO 2 films with longer-lasting stability (as inferred from service life determinations).…”

Section: Introductionmentioning

confidence: 99%

Evolution of the antibacterial activity and oxidation intermediates during the electrochemical degradation of norfloxacin in a flow cell with a PTFE-doped β-PbO2 anode: Critical comparison to a BDD anode

Sánchez-Montes

Neto

Silva³

et al. 2018

Electrochimica Acta

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The electrochemical degradation of the antibiotic norfloxacin (NOR) was investigated using an electrodeposited polytetrafluoroethylene (PTFE)-doped b-PbO 2 anode; its attained performance was compared to that of a boron-doped diamond (BDD) anode to check out a literature claim of superior performance by the former anode. The PTFE content in the electrodeposition bath was optimized to lead to a significantly extended service life of the b-PbO 2 anode despite its titanium substrate. The NOR degradation electrolyses (100 mg L À1 NOR in 0.1 mol L À1 Na 2 SO 4) were carried out in a filter-press flow cell (flow rate of 420 L h À1) using the following optimized conditions: no pH control, current density of 10 mA cm À2 , and 40 C. The electrooxidation process performance under these conditions was assessed through the evolution of the attained removals of NOR, total organic carbon (TOC), and antibacterial activity against Escherichia coli; the evolution of oxidation intermediates (aromatic compounds and carboxylic acids) was also assessed. In spite of the complete oxidation of NOR, the TOC removal attained with the PTFE-doped b-PbO 2 anode was relatively low (70% after 12 h, compared to 90% after only 5 h for a Si/BDD anode). As a consequence of this inferior performance comparatively to that of a BDD anode, a higher number of aromatic intermediates was detected; these intermediates seemed to still present antibacterial activity against Escherichia coli, which lasted even after all NOR was oxidized, contrary to the case of the electrooxidation with a BDD anode. The performance of the PTFE-doped b-PbO 2 anode was not superior to that of a BDD anode, i.e. the doping of the b-PbO 2 film with PTFE, making it hydrophobic, does not change the oxidation power of the anode despite increasing its service life.

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“…It has been proved that the nano‐structured SnO 2 is an excellent gas sensing material [1–4, 11, 12, 15, 16, 19–26]. In general, SnO 2 materials with different nano‐structures usually have varied gas sensing properties, such as sensitivity and working temperature.…”

Section: Introductionmentioning

confidence: 99%

“…Currently, many nano-structured SnO 2 materials with different dimensions have been reported, such as zero-dimensional nanoparticles [13][14][15], one-dimensional nanoneedles [16] and nanowires [17,18], two-dimensional nanosheets [9,19,20], three-dimensional nanoflowers [21][22][23], nanonets [24,25] and microspheres [26]. In order to obtain better nano-structured SnO 2 materials, different preparation methods have been investigated, including spray pyrolysis [13], hot-bubbling synthesis [14] and the most popular method of hydrothermal synthesis [18,21,24].…”

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confidence: 99%

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Facile synthesis of nano‐structured SnO ₂ films and their properties in ethanol gas sensing

Wang

Suo

et al. 2018

Micro & Nano Letters

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Four types of nano-structured SnO 2 thin films were synthesised via a facile one-step hydrothermal method on Ti substrate. All the films were prepared by using SnCl 4 and NaOH as the precursors with urea, mercaptoacetic acid or sodium citrate as the adjusting reagent. The prepared films were characterised by scanning electron microscope, X-ray diffractometer, X-ray photoelectron spectroscopy (XPS) and their properties in ethanol gas sensing were examined. It was found that addition of organic reagents resulted in the formation of different nano-scaled morphologies, i.e. nanowires, nanonets, transparent nanosheets and nanograsses. The characterisation of XPS indicated that SnO 2 was successfully deposited. The gas sensing experiments revealed that morphologies of the nano-SnO 2 films had a great effect on their gas sensing properties. The possible reasons involved were presented.

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Preparation of 3D PbO 2 nanospheres@SnO 2 nanowires/Ti Electrode and Its Application in Methyl Orange Degradation

Cited by 52 publications

References 44 publications

Novel Ti/TiHx/SnO2-Sb2O5-NiO-CNT electrode for electrochemical Ozone Generation for degradation of toxic textile azo dyes

Novel Ti/TiHx/SnO2-Sb2O5-NiO-CNT electrode for electrochemical Ozone Generation for degradation of toxic textile azo dyes

Evolution of the antibacterial activity and oxidation intermediates during the electrochemical degradation of norfloxacin in a flow cell with a PTFE-doped β-PbO2 anode: Critical comparison to a BDD anode

Facile synthesis of nano‐structured SnO ₂ films and their properties in ethanol gas sensing

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Preparation of 3D PbO 2 nanospheres@SnO 2 nanowires/Ti Electrode and Its Application in Methyl Orange Degradation

Cited by 52 publications

References 44 publications

Novel Ti/TiHx/SnO2-Sb2O5-NiO-CNT electrode for electrochemical Ozone Generation for degradation of toxic textile azo dyes

Novel Ti/TiHx/SnO2-Sb2O5-NiO-CNT electrode for electrochemical Ozone Generation for degradation of toxic textile azo dyes

Evolution of the antibacterial activity and oxidation intermediates during the electrochemical degradation of norfloxacin in a flow cell with a PTFE-doped β-PbO2 anode: Critical comparison to a BDD anode

Facile synthesis of nano‐structured SnO 2 films and their properties in ethanol gas sensing

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Product

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Facile synthesis of nano‐structured SnO ₂ films and their properties in ethanol gas sensing