A Novel Way to Prepare Visible‐Light‐Responsive <scp>WO</scp><sub>3</sub>/<scp>T</scp>i<scp>O</scp><sub>2</sub> Composite Film with High Porosity

Luo, Qiang; Cai, Qizhou; He, Jie; Li, Xinwei; Chen, Xidi; Pan, Zhenhua; Li, Yujie

doi:10.1111/ijac.12062

Cited by 14 publications

(4 citation statements)

References 23 publications

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“…10d, the O(1s) peak at 531.00 eV should be assigned to OH − and possibly O 2− in Al 2 O 3 , 31,32 and the O(1s) peak at 529.77 eV should be assigned to O 2− in titanium oxides and possibly vanadium oxides. 33,34 As presented in Fig. 10e, the N(1s) peak at 399.26 eV might be assigned to N in O-Ti-N. 35 As presented in Fig.…”

Section: Resultsmentioning

confidence: 90%

Synergistic Effect of F⁻and Persulfate in Efficient Titanium Alloy Chemical Mechanical Polishing

Deng

Jiang

Qian

2021

ECS J. Solid State Sci. Technol.

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Titanium alloys require excellent surface quality to achieve superior performance in biomedicine. In this paper, chemical mechanical polishing (CMP) was employed to prepare a satisfactory TC4 alloy surface. F− and persulfate were used as critical additives to improve the CMP efficiency. In comparison with the basic slurry without F− and persulfate, the slurry containing only F−, and the slurry containing only persulfate, the slurries containing both F− and persulfate lead to a noticeable increase in the material removal rate (MRR), which is attributed to the synergistic effect of F− and persulfate. After adding 80 mM NaF and 100 mM (NH4)2S2O8 to the basic slurry, the MRR increases significantly from 11 nm min−1 to 203 nm min−1, and the surface roughness R a reaches 3.4 nm. Moreover, there is no processing damage in the substrate. For the synergistic effect, Ti in TC4 alloy is first oxidized to Ti3+ and Ti4+ oxides by persulfate, and then HF, F− and HF2 − attack the oxides to produce soluble complex compounds, promoting the corrosion and the resultant MRR. This study provides a feasible way to achieve the high-efficiency CMP of titanium alloys via the synergistic effect of complexing agent and oxidizer to enhance the corrosive wear.

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Section: Resultsmentioning

confidence: 90%

Synergistic Effect of F⁻and Persulfate in Efficient Titanium Alloy Chemical Mechanical Polishing

Deng

Jiang

Qian

2021

ECS J. Solid State Sci. Technol.

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“…An additional calcination process at the temperature of 973 K and time 60 min allowed to obtain in the PEO coating of crystalline structures of anatase and WO 3 , characteristics with a more open porosity. Prepared in this way, surfaces after the PEO process and calcinations revealed the ability to cause photodegradation of rhodamine during UV irradiation [198].…”

Section: Peo Coatings Enriched With Phosphorus and Vanadium Or Tungstenmentioning

confidence: 99%

Phosphate Porous Coatings Enriched with Selected Elements via PEO Treatment on Titanium and Its Alloys: A Review

2020

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This paper shows that the subject of porous coatings fabrication by Plasma Electrolytic Oxidation (PEO), known also as Micro Arc Oxidation (MAO), is still current, inter alia because metals and alloys, which can be treated by the PEO method, for example, titanium, niobium, tantalum and their alloys, are increasingly available for sale. On the international market, apart from scientific works/activity developed at universities, scientific research on the PEO coatings is also underway in companies such as Keronite (Great Britain), Magoxid-Coat (Germany), Mofratech (France), Machaon (Russia), as well as CeraFuse, Tagnite, Microplasmic (USA). In addition, it should be noted that the development of the space industry and implantology will force the production of trouble-free micro- and macro-machines with very high durability. Another aspect in favor of this technique is the rate of part treatment, which does not exceed several dozen minutes, and usually only lasts a few minutes. Another advantage is functionalization of fabricated surface through thermal or hydrothermal modification of fabricated coatings, or other methods (Physical vapor deposition (PVD), chemical vapor deposition (CVD), sol-gel), including also reoxidation by PEO treatment in another electrolyte. In the following chapters, coatings obtained both in aqueous solutions and electrolytes based on orthophosphoric acid will be presented; therein, dependent on the PEO treatment and the electrolyte used, they are characterized by different properties associated with their subsequent use. The possibilities for using coatings produced by means of plasma electrolytic oxidation are very wide, beginning from various types of catalysts, gas sensors, to biocompatible and antibacterial coatings, as well as hard wear coatings used in machine parts, among others, used in the aviation and aerospace industries.

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“…), [14][15][16][17] plasmonic coupling (Au, Ag, Pt and Pd) [18][19][20][21] and coupling with other semiconductors (ZnO, WO 3 , SrTiO 3 , SnO 2 , CdS, ZnS, CdSe, Cu 2 O and MoS 2 ). [22][23][24][25][26][27][28] Among these strategies coupling TiO 2 with other semiconductors is recognized as the most efficient modification, which can result in an effective separation of photogenerated electron-hole pairs, and improving the photocatalytic activity. [26] As an important transition metal-based semiconductor, SnO 2 has been widely used in lithium ion batteries, gas sensors and photocatalysts.…”

Section: Introductionmentioning

confidence: 99%

“…To extend the light absorption range, prolong the lifetimes of photoexcited electron‐hole pairs and enhance the photocatalytic activity of TiO 2 , various strategies have been employed, such as surface modification, bandgap engineering by doping with a transition metals (Cr, Mn, Co, Zn, Ni, Fe) and non‐metals (N, P, S, C, B, etc. ), plasmonic coupling (Au, Ag, Pt and Pd) and coupling with other semiconductors (ZnO, WO 3 , SrTiO 3 , SnO 2 , CdS, ZnS, CdSe, Cu 2 O and MoS 2 ) . Among these strategies coupling TiO 2 with other semiconductors is recognized as the most efficient modification, which can result in an effective separation of photogenerated electron‐hole pairs, and improving the photocatalytic activity .…”

Section: Introductionmentioning

confidence: 99%

Template Based Synthesis of Plasmonic Ag‐modified TiO₂/SnO₂ Nanotubes with Enhanced Photostability for Efficient Visible‐Light Photocatalytic H₂ Evolution and RhB Degradation

Fakharian-Qomi

Sadeghzadeh‐Attar

2020

ChemistrySelect

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In the present study, ternary photocatalysts of Ag-modified hybrid TiO 2 /SnO 2 nanotube with varied Ag contents were synthesized by the liquid-phase deposition method. The morphology, crystal structure and optical properties of ternary photocatalysts have been investigated in detail and compared with those of SnO 2 , TiO 2 , and TiO 2 /SnO 2 nanotubes. The photocatalytic activity of the products has also been evaluated based on the degradation of Rhodamine B and H 2 production under visible-light irradiation. It was found that photostable 0.4 Ag-TiO 2 /SnO 2 nanotubes exhibit the highest photocatalytic H 2 production rate of 1304.8 μmol.h À 1 .g À 1 with the maximum apparent quantum yield (AQY) of 6.3%. The improvement in H 2 evolution rate and photodegradation efficiency can be attributed to the synergetic effect of SnO 2 coupling with TiO 2 nanotubes and Ag modification, mainly owning to enlarged light absorption region, efficient separation of charge carriers in hybrid nanotubes, and localization of surface plasmon resonance of Ag nanoparticles.

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A Novel Way to Prepare Visible‐Light‐Responsive WO₃/TiO₂ Composite Film with High Porosity

Cited by 14 publications

References 23 publications

Synergistic Effect of F⁻and Persulfate in Efficient Titanium Alloy Chemical Mechanical Polishing

Synergistic Effect of F⁻and Persulfate in Efficient Titanium Alloy Chemical Mechanical Polishing

Phosphate Porous Coatings Enriched with Selected Elements via PEO Treatment on Titanium and Its Alloys: A Review

Template Based Synthesis of Plasmonic Ag‐modified TiO₂/SnO₂ Nanotubes with Enhanced Photostability for Efficient Visible‐Light Photocatalytic H₂ Evolution and RhB Degradation

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A Novel Way to Prepare Visible‐Light‐Responsive WO3/TiO2 Composite Film with High Porosity

Cited by 14 publications

References 23 publications

Synergistic Effect of F−and Persulfate in Efficient Titanium Alloy Chemical Mechanical Polishing

Synergistic Effect of F−and Persulfate in Efficient Titanium Alloy Chemical Mechanical Polishing

Phosphate Porous Coatings Enriched with Selected Elements via PEO Treatment on Titanium and Its Alloys: A Review

Template Based Synthesis of Plasmonic Ag‐modified TiO2/SnO2 Nanotubes with Enhanced Photostability for Efficient Visible‐Light Photocatalytic H2 Evolution and RhB Degradation

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A Novel Way to Prepare Visible‐Light‐Responsive WO₃/TiO₂ Composite Film with High Porosity

Synergistic Effect of F⁻and Persulfate in Efficient Titanium Alloy Chemical Mechanical Polishing

Synergistic Effect of F⁻and Persulfate in Efficient Titanium Alloy Chemical Mechanical Polishing

Template Based Synthesis of Plasmonic Ag‐modified TiO₂/SnO₂ Nanotubes with Enhanced Photostability for Efficient Visible‐Light Photocatalytic H₂ Evolution and RhB Degradation