Fabrication of carbon paste electrode containing a new inorganic–organic hybrid based on [SiW12O40]4− polyoxoanion and Nile blue and its electrocatalytic activity toward nitrite reduction

Abstract

Fabrication of carbon paste electrode containing a new inorganic-organic hybrid based on [SiW 12 O 40 ] 4polyoxoanion and Nile blue and its electrocatalytic activity toward nitrite reduction,

A new ternary ruthenium(III) complex with 1,3-bis(salicylideneamino) propan-2-ol and 3-picolylamine: Synthesis, characterization, density functional theory and preparation of electrochemical sensor for nitrite analysis

“…Comparison of the obtained limit detection of our modified electrode with those found in the literature around nitrite concentrations range of 0 to 159 µM and pH=7 (Table 2), LOD calculated for CME/G/Ru(III)-BSAP-PLA electrode was much lower than the limit detection of nitrite ions determined using different modified electrodes [21,42,43] and CME/G/Ru(III)-BSAP-PLA electrode exhibited much higher current response sensitivity towards nitrite oxidation around 0.86 V, which is corresponding to the conversion of NO 2 to NO 3 -. It can be explained by the synergetic effect of Ru(III)-BSAP-PLA complex in electrocatalytic oxidation of nitrite ions.…”

“…Rrecently, numerous studies have been conducted on the impact of inorganic pollutants such as heavy metals and nitrite ions on water quality [14][15][16][17][18][19][20]. Indeed, to detect these ions, different electrochemical sensors based on modified electrodes were developed [21][22][23][24][25][26][27][28][29][30].…”

Silver particle-decorated carbon paste electrode based on ionic liquid for improved determination of nitrite

“…extraction, ion exchange) with the analyte. A few attempts to determine nitrite using modified carbon paste electrodes have recently been published [31][32][33][34], among which there are few employing ionic liquid as a binder/modifier [18,20,35]. For example 1-butyl-3-metylimidazolium bis(trifluorometylsulfonyl)imide combined with paraffin has been used as the binder in CPE, which served as the substrate for a poly(o-anisidide) film [35], n-octylpyridinum hexafluorophosphate and single-walled carbon nanotubes have been used to fabricate a composite CPE [20], and n-octylpyridinum hexafluorophosphate has been used to make a CPE with multi-walled carbon nanotubes, after which the CPE was further modified with haemoglobin and octylpyridinum chloride [18].…”

SiW12–TiO2 Mesoporous Layer for Enhanced Electron‐Extraction Efficiency and Conductivity in Perovskite Solar Cells

“…[48,49] and was investigated by ac ombined analysis of TGA and DTA( Figure S1 [48][49][50] Preparation of pristine TiO 2 and SiW 12 -TiO 2 paste precursors For the preparation of SiW 12 -TiO 2 composites paste precursors, commercial Dyesol 18NR-T (132 mg) was initially dispersed into absolute ethanol (0.5 mL). The chemical composition, crystal structure, and surface morphology of SiW 12 -TiO 2 and pristine TiO 2 films were systematically analyzed and compared by ac ombined investigation of FTIR, XRD, XPS, SEM, TEM, and EDX.…”

“…More importantly,t he SiW 12 [48,49] and was investigated by ac ombined analysis of TGA and DTA( Figure S1 a), XRD ( Figure S1b), UV/Vis (Figure S3 a), and CV ( Figure S3 b), demonstrating that the as-synthesized samples are Keggin-type H 4 SiW 12 O 40 ·x H 2 O. [48][49][50] Preparation of pristine TiO 2 and SiW 12 -TiO 2 paste precursors For the preparation of SiW 12 -TiO 2 composites paste precursors, commercial Dyesol 18NR-T (132 mg) was initially dispersed into absolute ethanol (0.5 mL). Then, SiW 12 solution (0.5 mL, 0.8 mg mL À1 in ethanol) was slowly dropped into the above mixture.…”