TiO2/SrTiO3 and SrTiO3 microspheres decorated with Rh, Ru or Pt nanoparticles: Highly UV–vis responsible photoactivity and mechanism

Grabowska, Ewelina; Marchelek, Martyna; Klimczuk, Tomasz; Lisowski, Wojciech; Zaleska-Medynska, Adriana

doi:10.1016/j.jcat.2017.04.005

Cited by 58 publications

(21 citation statements)

References 78 publications

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“…It was reported that the efficiency of PTh‐SrTiO 3 photocatalyst was highly improved because the excited electrons in lowest unoccupied molecular orbitals (LUMOs) of PTh can be migrate to the CB of SrTiO 3 . Besides MB dye, there are also other researchers reported to treat other industrial dyes, for example, methyl orange (MO), crystal violet (CV), rhodamine B (RhB), and even phenol oxidation . According to a survey in 2015, an alarming total of 36 detectable antibiotics (such as lincomycin, chloramphenicols, macrolides, and tetracyclines [TCs]) existed in China, which was approximately 53 800 tons .…”

Section: Applications Of Srtio3mentioning

confidence: 99%

A review of synthesis and morphology of SrTiO ₃ for energy and other applications

et al. 2019

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Summary With the increasing demand and depleting trend of commercial energies, it has forced the researchers all over the world to accelerate research and development in the area of renewable energy. Currently, unique and interesting features of binary compounds have gained more attention by researchers, and it became a favourite research topic among various groups of researchers around this world. It was noticed that strontium titanate (SrTiO3) consists of several extraordinary properties that can apply for miscellaneous applications especially for energy storage, fuel cells, as well as to generate hydrogen fuel via photocatalysis process. Besides that, it was noticed that SrTiO3 can be synthesised in different pathways. The method of preparation and amount of precursors can affect the surface properties of SrTiO3. Thus, this article presents a critical review on how SrTiO3 synthesis methods affect its surface morphology and the applications of SrTiO3 in various fields.

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Section: Applications Of Srtio3mentioning

confidence: 99%

A review of synthesis and morphology of SrTiO ₃ for energy and other applications

et al. 2019

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“…Also for all samples the absorption peak around 3443-3447 cm −1 can be caused from the stretching vibrations of lattice hydroxyls from Ti-OH perturbed by nearby Sr atoms or by Sr-OH [42]. The band around 1637 cm −1 for STO is due to the bending vibration of -OH (caused from bending water) [42,44]. The absorption peak around 3443 cm −1 can be caused from the stretching vibrations of lattice hydroxyls from Ti-OH perturbed by nearby Sr atoms or by Sr-OH [42].…”

Section: Ft-ir Spectroscopymentioning

confidence: 90%

Development of SrTiO3 Photocatalysts with Visible Light Response Using Amino Acids as Dopant Sources for the Degradation of Organic Pollutants in Aqueous Systems

et al. 2018

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N-doped and N,S-co-doped SrTiO3 photocatalysts were prepared using glycine and L-histidine amino acids as nitrogen sources and L-cysteine as nitrogen and sulphur source. The samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), N2 porosimetry, UV-Vis diffuse reflectance (DRS) and fluorescence spectroscopy, dynamic light scattering (DLS). Cubic SrTiO3 phase is formed in all samples, with crystal size ranged from 14.2 nm to 35.7 nm. The catalysts’ specific surface area and porosity depend on the amino acid dopant showing micro-mesoporosity for glycine, mesoporosity for histidine and non-porosity for cysteine. The lowest band gap (2.95 eV) was observed for the sample G-N-STO3 prepared with glycine (N:Sr:Ti 3:1:1 molar ratio) which produced also the higher amount of •OH radicals. The photocatalytic activity was tested against the degradation of methylene blue (MB) dye under UV-Vis and visible light irradiation following first-order kinetics.

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“…These electron traps facilitated the electron-hole separation and promotes the interfacial electron transfer process, which accordingly, make the photocatalyst more efficient. 33 Figure 7 shows the effect of the doped Pt weight percent on the photocatalytic activities of SrTiO 3 nanoparticles for photocatalytic oxidation of cyclohexane. The results showed that the photocatalytic activity was significantly enhanced, 5.0%, 75%, 85%, 100% with the increase of doped Pt weight percent from 0.0, 0.5, 1.0, 1.5 wt%; respectively, which was expected due to the doping with noble metal such as Pt.…”

Section: Photocatalytic Oxidation Of Cyclohexanementioning

confidence: 99%

Enhancement of visible light irradiation photocatalytic activity of $$\hbox {SrTiO}_{3}$$ SrTiO 3 nanoparticles by Pt doping for oxidation of cyclohexane

Salam

Aljohani

2017

J Chem Sci

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In this research, strontium titanate (SrTiO 3) nanoparticles were synthesised using an ultrasonic method, then were doped with Pt using a photo-assisted deposition method to form Pt/SrTiO 3 nanoparticles. SrTiO 3 and Pt/SrTiO 3 nanoparticles were characterized by XRD, XPS, TEM, BET surface area UV-Vis and PL techniques in order to explore their chemical and physical properties. The visible light irradiation photocatalytic performances of SrTiO 3 nanoparticles and Pt/SrTiO 3 nanoparticles for photocatalytic oxidation of cyclohexane was investigated, and the results revealed that platinum was doped onto the SrTiO 3 nanoparticles surfaces as metallic platinum, and the weight percent of doped platinum greatly affected the band gap, and the 1.5 wt% Pt/SrTiO 3 nanoparticles showed the highest photocatalytic activity due to the low band gap. The stability of the Pt/SrTiO 3 nanoparticles for the photocatalytic oxidation of cyclohexane was examined and the results revealed that the Pt/SrTiO 3 nanoparticles could be used five times without losing their efficiency.

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TiO2/SrTiO3 and SrTiO3 microspheres decorated with Rh, Ru or Pt nanoparticles: Highly UV–vis responsible photoactivity and mechanism

Cited by 58 publications

References 78 publications

A review of synthesis and morphology of SrTiO ₃ for energy and other applications

A review of synthesis and morphology of SrTiO ₃ for energy and other applications

Development of SrTiO3 Photocatalysts with Visible Light Response Using Amino Acids as Dopant Sources for the Degradation of Organic Pollutants in Aqueous Systems

Enhancement of visible light irradiation photocatalytic activity of $$\hbox {SrTiO}_{3}$$ SrTiO 3 nanoparticles by Pt doping for oxidation of cyclohexane

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TiO2/SrTiO3 and SrTiO3 microspheres decorated with Rh, Ru or Pt nanoparticles: Highly UV–vis responsible photoactivity and mechanism

Cited by 58 publications

References 78 publications

A review of synthesis and morphology of SrTiO 3 for energy and other applications

A review of synthesis and morphology of SrTiO 3 for energy and other applications

Development of SrTiO3 Photocatalysts with Visible Light Response Using Amino Acids as Dopant Sources for the Degradation of Organic Pollutants in Aqueous Systems

Enhancement of visible light irradiation photocatalytic activity of $$\hbox {SrTiO}_{3}$$ SrTiO 3 nanoparticles by Pt doping for oxidation of cyclohexane

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A review of synthesis and morphology of SrTiO ₃ for energy and other applications

A review of synthesis and morphology of SrTiO ₃ for energy and other applications