Fabrication and photo-electrocatalytic activity of black TiO2 embedded Ti/PbO2 electrode

Zhu, Liyan; Tian, Yihua; Li, Maolin; Ma, Hongchao; Chun, Ma; Dong, Xiaoli; Zhang, Xiufang

doi:10.1007/s10800-017-1103-0

Cited by 11 publications

(5 citation statements)

References 49 publications

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“…With TiO 2 fabricated in air and in oxygen plasma, the peak appears around 459.1 eV as can be expected for four‐valence titanium; however, the Ti2p 2/3 peak of TiO 2 fabricated in oxygen plasma atmosphere is sharp on the low binding‐energy side, while the Ti2p 2/3 peak of TiO 2 fabricated in air shows a bulge about 0.8 eV on the low energy side. Such shift of Ti2p 2/3 peak by 0.8 eV toward lower energy was reported for TiO 2 abundant in oxygen vacancies (black TiO 2 ); thus, the bulge observed in TiO 2 fabricated in air can be attributed to oxygen vacancies. That is, one can assume that TiO 2 fabricated in oxygen plasma, as compared to that fabricated in air, contained fewer oxygen vacancies, and that laser irradiation in oxygen plasma contributed to oxygen supply into the thin film.…”

Section: Resultssupporting

confidence: 70%

Integration effect of O₂‐plasma to an excimer‐laser‐assisted metal organic deposition process for functionalization of photoelectrodes

Nishikawa

Segawa

Saito

et al. 2019

Elect Comm in Japan

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To prevent photocorrosion of a Cu2O photocathode, composition of a TiO2 layer onto the Cu2O is one of the most effective solutions. For crystallization of the TiO2 layer alone without heat‐damage to the underlying Cu2O layer, which is easy to oxidize to CuO, we developed the integration process of O2‐plasma and an excimer‐laser irradiation, that a metal‐organic precursor film is crystalized by irradiation of the excimer‐laser in O2‐plasma. The TiO2 layer could be crystalized with lower oxygen vacancies by the laser irradiation in O2‐plasma compared to that prepared by the irradiation in air. Furthermore, the oxidation of Cu2O to CuO was drastically restricted due to the highly crystalized TiO2 in which oxygen ions were hard to diffuse to the interface of TiO2/Cu2O. The photocorrosion of the obtained film during water reduction reaction was also restricted. This O2‐plasma integrated process is effective for selective crystallization of metal‐oxide films for functionalization of photoelectrodes.

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Section: Resultssupporting

confidence: 70%

Integration effect of O₂‐plasma to an excimer‐laser‐assisted metal organic deposition process for functionalization of photoelectrodes

Nishikawa

Segawa

Saito

et al. 2019

Elect Comm in Japan

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“…Figure 7 shows an EDX spectrum of the PbO 2 ‐TiO 2 ‐SnO 2 composite. The typical peaks for Pb, O, Ti, and Sn appeared very clearly 19,20 . The content of elements in the composite is shown in Table 3.…”

Section: Resultsmentioning

confidence: 97%

“…The typical peaks for Pb, O, Ti, and Sn appeared very clearly. 19,20 The content of elements in the composite is shown in Table 3. This demonstrated the presence of TiO 2 , SnO 2 , and PbO 2 in the composite.…”

Section: Edx and Element-mapping Studymentioning

confidence: 99%

Electrochemical degradation of methyl orange from wastewater by SS/PbO₂‐TiO₂‐SnO₂ composite electrode with and without UV

Thi Tot,

Thuy,

Binh

2024

Vietnam Journal of Chemistry

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SS/PbO2‐TiO2‐SnO2 composite electrode was synthesized by cyclic voltammetry (CV) method. The morphological structure of the composite was studied by scanning electron microscopy (SEM), X‐ray diffraction (XRD), energy dispersive X‐ray spectroscopy (EDX), element‐mapping and thermal gravimetric analysis (TGA). The photoelectrochemical and electrochemical properties were considered in 0.5 m H2SO4 solution with and without UV, respectively. The results indicated that the PbO2‐TiO2‐SnO2 composite had good photoelectrochemical properties due to anodic current and exchange current density increased (31.32% and 48.67%, respectively) under UV irradiation. The composite electrode was used as anode for methyl orange (MO) treatment reached 99.51% under UV irradiation. The kinetic of MO degradation followed the pseudo‐ first order with and without UV (R2 = 0.9528 and 0.9684, respectively). Therefore, TiO2 and SnO2 dopped into PbO2 layer, created a composite with good photoelectrocatalytic activity.

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“…Semiconductor-mediated photocatalysis, an effective and environmental-friendly approach for environmental remediation, has attracted worldwide scientific interest [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]. Up to now, a large number of photocatalysts have been developed for environmental protection, including metals [17], organic polymers [18], sulfides [19,20], metal oxides [21][22][23], and nitrides [24].…”

Section: Introductionmentioning

confidence: 99%

BiOCOOH Microflowers Decorated with Ag/Ag2CrO4 Nanoparticles as Highly Efficient Photocatalyst for the Treatment of Toxic Wastewater

Xue

Chen

et al. 2020

Catalysts

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A novel flower-like Ag/Ag2CrO4/BiOCOOH heterojunction photocatalyst was synthesized by a facile in-situ precipitation strategy combined with photoreduction treatment. Morphological studies revealed that numerous Ag/Ag2CrO4 nanoparticles were evenly anchored on BiOCOOH microflowers, producing a novel heterojunction with the compactly interfacial contact. Optical absorption characterization demonstrated that Ag/Ag2CrO4/BiOCOOH possessed much better sunlight harvesting ability than Ag2CrO4/BiOCOOH and BiOCOOH. Photocatalytic experiments verified that compared with BiOCOOH, Ag2CrO4, Ag/Ag2CrO4, and Ag2CrO4/BiOCOOH, Ag/Ag2CrO4/BiOCOOH achieved remarkable efficiency by eliminating 100% of rhodamine B (RhB), 82.6% of methyl orange (MO) or 69.4% of ciprofloxacin (CIP) within 50 min at a catalyst dosage of 0.4 g/L. The high photocatalytic performance is likely owing to the improved sunlight response and the distinctly suppressed recombination of charge carriers arising from the formation of the novel 3D hierarchical heterostructure. The quenching test signified that h+, and •O2− were detected as the prevailing active species in wastewater treatment. This study may provide a viable strategy for enhancing the photocatalytic performance of wide band-gap semiconductors.

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Fabrication and photo-electrocatalytic activity of black TiO2 embedded Ti/PbO2 electrode

Cited by 11 publications

References 49 publications

Integration effect of O₂‐plasma to an excimer‐laser‐assisted metal organic deposition process for functionalization of photoelectrodes

Integration effect of O₂‐plasma to an excimer‐laser‐assisted metal organic deposition process for functionalization of photoelectrodes

Electrochemical degradation of methyl orange from wastewater by SS/PbO₂‐TiO₂‐SnO₂ composite electrode with and without UV

BiOCOOH Microflowers Decorated with Ag/Ag2CrO4 Nanoparticles as Highly Efficient Photocatalyst for the Treatment of Toxic Wastewater

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Fabrication and photo-electrocatalytic activity of black TiO2 embedded Ti/PbO2 electrode

Cited by 11 publications

References 49 publications

Integration effect of O2‐plasma to an excimer‐laser‐assisted metal organic deposition process for functionalization of photoelectrodes

Integration effect of O2‐plasma to an excimer‐laser‐assisted metal organic deposition process for functionalization of photoelectrodes

Electrochemical degradation of methyl orange from wastewater by SS/PbO2‐TiO2‐SnO2 composite electrode with and without UV

BiOCOOH Microflowers Decorated with Ag/Ag2CrO4 Nanoparticles as Highly Efficient Photocatalyst for the Treatment of Toxic Wastewater

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Integration effect of O₂‐plasma to an excimer‐laser‐assisted metal organic deposition process for functionalization of photoelectrodes

Integration effect of O₂‐plasma to an excimer‐laser‐assisted metal organic deposition process for functionalization of photoelectrodes

Electrochemical degradation of methyl orange from wastewater by SS/PbO₂‐TiO₂‐SnO₂ composite electrode with and without UV