Study on Ag2WO4/g-C3N4 Nanotubes as an Efficient Photocatalyst for Degradation of Rhodamine B

Wang, Hui; Zhang, Jiarui; Wu, Xiang-Feng; Wang, Chao; Li, Yan; Ci, Lijie; Jia, Yun-Ning; Chang, Tian-Long; Liu, Xu-Tao; Fu, Yun-Xuan

doi:10.1007/s10904-020-01756-7

Cited by 19 publications

(7 citation statements)

References 64 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Further, it is worth pointing out that the addition of another semiconductor with a narrow band gap overcomes the lowefficiency Ag 2 WO 4 in the utilization in visible light regions. When Ag 2 WO 4 /gC 3 N 4 photocatalysts, for example, were exposed under visible light for degradation of RhB, a typical organic dyes pollutant, the photocatalytic degradation efficiency achieves optimal values that are >90% within 20e50 min under irradiation [152,159,224]. Similar efficient performances were obtained when Ag 2 WO 4 is hybridized with silver halide, AgX (X ¼ Cl, Br, I).…”

Section: Compositementioning

confidence: 68%

“…In terms of the successful heterojunction design, several aspects must be taken into consideration according to the suitable bands (VB and CB) alignment of the adjacent semiconductors [225,226]. In particular, for the Ag 2 WO 4 composites, the Z-scheme heterojunction [154e156, 167,185,199, 227e230] and conventional type II heterojunction [169,205,207,211,213,224] are the most employed. A schematic representation of both types of Ag 2 WO 4 heterojunctions is displayed in Fig.…”

Section: Compositementioning

confidence: 99%

See 1 more Smart Citation

Ag2WO4 as a multifunctional material: Fundamentals and progress of an extraordinarily versatile semiconductor

Gouveia

Roca

Macedo

et al. 2022

Journal of Materials Research and Technology

View full text Add to dashboard Cite

Section: Compositementioning

confidence: 68%

Section: Compositementioning

confidence: 99%

Ag2WO4 as a multifunctional material: Fundamentals and progress of an extraordinarily versatile semiconductor

Gouveia

Roca

Macedo

et al. 2022

Journal of Materials Research and Technology

View full text Add to dashboard Cite

“…The diffraction peaks of WO 3– x at 23.2° and 47.2° correspond to (010) and (020) crystal planes, respectively. 18.4°, 30.2°, 32.3°, 44.8°, and 56.2° were the distinct diffraction peaks of pure AW, which can be matched to the (020), (022), (220), (042), and (242) planes of the hexagonal structure, respectively (PDF #33-1195) . However, the XRD spectra of WAW did not show significant AW diffraction peaks as the content of AW increased, which may be due to the low content of AW .…”

Section: Resultsmentioning

confidence: 99%

PVA/WO_3–x/Ag₂WO₄ Hydrogel for Enhanced Photocatalytic Disinfection and Accelerated Wound Healing

Gan

Zhao

et al. 2023

Langmuir

View full text Add to dashboard Cite

Bacterial wound infections are one of the growing health and safety threats to the public. In this study, WO 3−x /Ag 2 WO 4 photocatalysts were synthesized, and heterogeneous structures were constructed for nonantibiotic bactericidal use. Due to the heterostructure constructed with Ag 2 WO 4 , the photogenerated carrier separation efficiency and reactive oxygen generation capacity of WO 3−x were improved, which in turn improved the inactivation rate of bacteria. Also, this photocatalyst was loaded into PVA hydrogel for photodynamic treatment of bacterial wound infections. This hydrogel dressing was demonstrated to have good biosafety by in vitro cytotoxicity tests and to have a wound healing-promoting effect by in vivo wound healing experiments. This light-driven antimicrobial hydrogel has the potential ability to treat bacterial wound infections. 27

show abstract

“…It is due to the presence of variety active particles in the reaction volume: charged particles, radicals, singlet oxygen, hydrogen peroxide, capable of destroying organic compounds. Significant progress has been recently reached in this direction [1,[6][7][8][9][10][11][12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

The effect of methyl methacrylate transformations during photocatalysis in the presence of RbTe1.5W0.5O6 on the change of the complex oxide surface

Chasova

Fukina

Boryakov

et al. 2022

Izvestiâ vuzov. Prikladnaâ himiâ i biotehnologiâ

View full text Add to dashboard Cite

The features of the surface changes of the RbTe1.5W0.5O6 photocatalyst during polymerization processes involving methyl methacrylate (MMA) under irradiation with visible light λ= 400–700 nm at a temperature of 20–25 °C, as well as regeneration conditions for its reuse, have been studied. The realization of a chemical reaction in a mixture of a photocatalyst and a monomer is determined by its kinetic parameters and the concentration of reacting particles. The formation of OH• radicals, which are active in radical polymerization, occurs in this case by both ways: interacting between water molecules adsorbed on the surface, as well as during the recovery of oxygen dissolved in water. Due to the high reactivity of the hydroxyl radical, an active process of radical polymerization of MMA could be expected. However, the formation of polymethyl methacrylate (PMMA) in the reaction takes place with a low conversion – the formation of 5–10% polymer, which is related to changes on the surface of the complex oxide RbTe1.5W0.5O6 during the reaction. Scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS) methods have been used to investigate the catalyst surface. The presence of organic and polymer substrates was revealed on the catalyst surface after the reaction. As a result of the catalyst treatment by ultrasound in an aqueous emulsion, polymer macromolecules are not identified on the surface, but chemically adsorbed monomer and oligomers formed under the ultrasound destruction of the polymer are presented. Other methods of cleaning the catalyst surface by washing in different solutions as chloroform and tetrahydrofuran also are not effective and cause the adsorbates transformations on the surface. It leads to decreasing the RbTe1.5W0.5O6 catalyst's activity for repeated polymerization. Thus, to successful regeneration of the catalyst's powder not only ultrasound treatment is required, but also heating it at 300–400 °C to remove organic substrates.

show abstract

Study on Ag2WO4/g-C3N4 Nanotubes as an Efficient Photocatalyst for Degradation of Rhodamine B

Cited by 19 publications

References 64 publications

Ag2WO4 as a multifunctional material: Fundamentals and progress of an extraordinarily versatile semiconductor

Ag2WO4 as a multifunctional material: Fundamentals and progress of an extraordinarily versatile semiconductor

PVA/WO_3–x/Ag₂WO₄ Hydrogel for Enhanced Photocatalytic Disinfection and Accelerated Wound Healing

The effect of methyl methacrylate transformations during photocatalysis in the presence of RbTe<sub>1.5</sub>W<sub>0.5</sub>O<sub>6</sub> on the change of the complex oxide surface

Contact Info

Product

Resources

About

Study on Ag2WO4/g-C3N4 Nanotubes as an Efficient Photocatalyst for Degradation of Rhodamine B

Cited by 19 publications

References 64 publications

Ag2WO4 as a multifunctional material: Fundamentals and progress of an extraordinarily versatile semiconductor

Ag2WO4 as a multifunctional material: Fundamentals and progress of an extraordinarily versatile semiconductor

PVA/WO3–x/Ag2WO4 Hydrogel for Enhanced Photocatalytic Disinfection and Accelerated Wound Healing

The effect of methyl methacrylate transformations during photocatalysis in the presence of RbTe<sub>1.5</sub>W<sub>0.5</sub>O<sub>6</sub> on the change of the complex oxide surface

Contact Info

Product

Resources

About

PVA/WO_3–x/Ag₂WO₄ Hydrogel for Enhanced Photocatalytic Disinfection and Accelerated Wound Healing