2022
DOI: 10.1016/j.jpcs.2021.110315
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Enhanced photocatalytic reduction of Cr(VI) by the novel hetero-system BaFe2O4/SnO2

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Cited by 47 publications
(11 citation statements)
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“…Nanostructured TiO 2 has also been used in many applications such as sensors [12], photocatalysis [13][14][15][16], and solar energy conversion [17]. TiO 2 nanotubes have attracted particular attention because of their high specific surface area [18], high photoactivity [19], and the rapid transfer rate of holes and electron-hole pairs (e − /h + ) photogenerated along the nanotubes [20][21][22]. However, two major factors limit the performance of TiO 2 .…”
Section: Introductionmentioning
confidence: 99%
“…Nanostructured TiO 2 has also been used in many applications such as sensors [12], photocatalysis [13][14][15][16], and solar energy conversion [17]. TiO 2 nanotubes have attracted particular attention because of their high specific surface area [18], high photoactivity [19], and the rapid transfer rate of holes and electron-hole pairs (e − /h + ) photogenerated along the nanotubes [20][21][22]. However, two major factors limit the performance of TiO 2 .…”
Section: Introductionmentioning
confidence: 99%
“…This process lasts for a few femtoseconds and is then followed by recombination of the excited negative electrons in the conduction band (CB) with the previously generated positive holes at the valence band (VB) either on the surface or in the bulk of the particle releasing heat energy [29][30][31]. Otherwise, these produced charge carriers (e − and h + ) can migrate to the surface of the photocatalyst and initiate further redox or oxidation reactions with adsorbed or reactant molecules on the surface if they have sufficient time or energy, as illustrated in Figure 1, which is inspired from a previous article [16].…”
Section: Fundamental Mechanism For Photocatalytic Processesmentioning
confidence: 99%
“…Figure 4 shows typical SEM images of the BNO crystals. A small agglomeration can be seen due to the ultrafine nature of the sample [37]. This leads to a non-uniform distribution of crystals of different shapes and a noticeable porosity in the sample [28].…”
Section: Morphology Investigationmentioning
confidence: 99%
“…The bandgap energy (Eg) is determined by plotting the Tauc plot (Figure 5), which is the dependence of the absorption coefficient (α) on the photon energy (hn). It is expressed in the following relationship [37,39]:…”
Section: Optical Studymentioning
confidence: 99%