Titanate nanofibers sensitized with nanocrystalline Bi2S3 as new electrocatalytic materials for ascorbic acid sensor applications

Synthesis of titanate nanofibers co-sensitized with ZnS and Bi 2 S 3 nanocrystallites and their application on pollutants removal

“…This type of structure is expected since Bi 2 S 3 is a semiconductor that can easily present preferential growth according to a particular plane, often resulting in materials exhibiting lamellar morphology. An identical morphology was observed for the nanoBi 2 S 3 powder, which presents a sheet-like network morphology leading, by energetic reasons, to the formation of spherical agglomerates [30]. The SAED analysis of one single decorated composite particle indicates the presence of two different crystalline phases that are consistent with the existence of crystalline Bi 2 S 3 nanosheets covering the TNF surface ( Figure 3c).…”

One-pot synthesis of reduced graphene oxide/zinc sulfide nanocomposite at room temperature for simultaneous determination of ascorbic acid, dopamine and uric acid

“…Carbon based nanomaterials [8][9][10][11][12][13][14][15][16][17][18][19][20], polymers [21][22][23][24][25], noble metals [26][27][28][29][30][31][32][33], metal oxides [34][35][36][37][38][39], metal hydroxides [40,41] and metal complexes [42,43] have been used as effective electrode modifiers for the simultaneous determination of AA, DA and UA. Metal sulfide nanomaterials have been employed in the electrochemical sensing of AA [44,45], tryptophan [46] and dopamine [47]. However, to the best of our E-mail address: yangyujun@yahoo.com knowledge, the application of metal sulfide in the simultaneous determination of AA, DA and UA has never been reported.…”

Novel one-pot synthesis and sensitisation of new BiOCl–Bi2S3 nanostructures from DES medium displaying high photocatalytic activity

“…36 25 ; bismuth sulphide (nanoBi2S3) was prepared according to the procedure previously described. 33 The prepared samples are designated, according to Table 1, from A to E followed by the proportion of Bi:S in the starting reactants using Na2S2O3 as sulphur source, e.g. A (1.5:1).…”

“…This approach shows advantages over other methodologies reported in the past in which high reaction temperature, capping agents and use of less environmentally friendly reactants were required. [29][30][31][32] The presence of Bi2S3, which has a band gap energy in the range 1.2 to 1.8 eV 26,[33][34][35] , extends the absorption of the hybrid material to the visible region since BiOCl only absorbs in the UV (Eg BiOCl bulk = 3.5 eV). The BiOCl/Bi2S3 nanomaterials exhibit efficient visible light photocatalytic activity towards RhB, 2,4-dichlorophenol and MO degradation processes.…”