Synthesis of one-dimensional Bi2O3–Bi5O7I heterojunctions with high interface quality

CrystEngComm ◽  
2018 ◽  
Vol 20 (33) ◽  
pp. 4771-4780 ◽  
Author(s):  
Yin Peng ◽  
Yan Ge Mao ◽  
Ting Liu
Keyword(s):  
Photocatalytic Activity ◽  
Methyl Orange ◽  
High Concentration ◽  
Interface Quality ◽  
One Dimensional

One-dimensional Bi2O3–Bi5O7I heterostructures with high interface quality were first synthesized by calcining of BiOI–Bi(OHC2O4)·2H2O precursors. And the obtained Bi2O3–Bi5O7I heterostructures exhibit outstanding photocatalytic activity for degrading methyl orange and phenol with high concentration.

Synthesis of one-dimensional Bi2O2CO3–Bi(OHC2O4)·2H2O heterojunctions with excellent adsorptive and photocatalytic performance

RSC Advances ◽  
2016 ◽  
Vol 6 (48) ◽  
pp. 42452-42460 ◽  
Author(s):  
Yin Peng ◽  
Ke Ke Wang ◽  
Pian-Pian Yu ◽  
Ting Liu ◽  
An Wu Xu
Keyword(s):  
Photocatalytic Activity ◽  
Photocatalytic Performance ◽  
High Concentration ◽  
One Dimensional

Novel one-dimensional Βi2O2CO3–Βi2(OHC2O4)·2H2O heterostructure photocatalyst exhibits outstanding photocatalytic activity for degrading high concentration RhB, MB and MO dyes, and excellent adsorptive capability to MO dye.

Synthesis of Bi2O3–Bi4V2O11 heterojunctions with high interface quality for enhanced visible light photocatalysis in degradation of high-concentration phenol and MO dyes

CrystEngComm ◽  
2018 ◽  
Vol 20 (18) ◽  
pp. 2553-2561 ◽  
Author(s):  
Ting Liu ◽  
Yan Ge Mao ◽  
Yin Peng
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Visible Light Photocatalysis ◽  
High Concentration ◽  
Interface Quality

Bi2O3–Bi4V2O11 heterostructures with high interface quality were synthesized by calcining Bi2VO5.5–Bi(OHC2O4)·2H2O precursors. The Bi2O3–Bi4V2O11 heterostructure exhibits outstanding photocatalytic activity for degrading phenol and MO dyes with high concentration under visible light irradiation.

Preparation of (Fe, Ni)-Codoped ZnO and Its Photocatalytic Activity for Deg-radation of Methyl Orange

2010 ◽  
Vol 31 (7) ◽  
pp. 797-802 ◽  
Author(s):  
Tianhua FU ◽  
Qianqian GAO ◽  
Fei LIU ◽  
Huajun DAI ◽  
Xingming KOU
Keyword(s):  
Photocatalytic Activity ◽  
Methyl Orange

Solar, visible and UV light photocatalytic activity of CoWO4for the decolourization of methyl orange

2014 ◽  
Vol 54 (11) ◽  
pp. 3134-3145 ◽  
Author(s):  
Kandasamy Jothivenkatachalam ◽  
Saravanan Prabhu ◽  
Arjunan Nithya ◽  
Singaravelu Chandra Mohan ◽  
Kulandaivel Jeganathan
Keyword(s):  
Photocatalytic Activity ◽  
Methyl Orange ◽  
Uv Light

scholarly journals Indoor radon concentration and a diffusion model in dwellings situated in a subalkaline granitoid area, Southern Brazil

2021 ◽  
Vol 80 (17) ◽  
Author(s):  
G. Romero-Mujalli ◽  
A. Roisenberg ◽  
A. Cordova-Gonzalez ◽  
P. H. P. Stefano
Keyword(s):  
Diffusion Model ◽  
Indoor Radon ◽  
Southern Brazil ◽  
High Concentration ◽  
Indoor Radon Concentration ◽  
One Dimensional ◽  
Environmental Limits ◽  
Radon Measurements ◽  
Cr 39 Detectors

AbstractRadon (Rn), a radioactive element, has especial interest in medical geology because long-term exposure to high concentration is related to lung cancer. In this study, outdoor and indoor radon measurements were conducted in dwellings of the Piquiri Syenite Massif, located in southern Brazil, given the relative high Rn content in soils of this region. Measurements were done using CR-39 detectors and placing them inside and outside dwellings. Moreover, a one-dimensional diffusion model was performed in order to quantify the natural transport of Rn to the air in confined and aerated environments. Results indicate that the region presents relatively low air Rn concentrations, within the environmental limits; however, the health risk might increase in confined and ill-ventilated environments because of transfer from soil and exhalation from ornamental rock-material often found inside dwellings. The main north facies of the syenite, where most of the rock extractions are located, was found to have the highest air Rn concentration because of the higher soil Rn concentration, compared to other facies of the syenite.

scholarly journals Zirconium-Doped Chromium IV Oxide Nanocomposites: Synthesis, Characterization, and Photocatalysis towards the Degradation of Organic Dyes

Catalysts ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 117
Author(s):  
Zahir Muhammad ◽  
Farman Ali ◽  
Muhammad Sajjad ◽  
Nisar Ali ◽  
Muhammad Bilal ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Photocatalytic Activity ◽  
Methyl Orange ◽  
Solid State ◽  
Room Temperature ◽  
Organic Dyes ◽  
Uv Light ◽  
Heterogeneous Photocatalysis ◽  
Ft Ir ◽  
Complete Mineralization

Degradation of organic dyes and their byproducts by heterogeneous photocatalysts is an essential process, as these dyes can be potentially discharged in wastewater and threaten aquatic and xerophyte life. Therefore, their complete mineralization into nontoxic components (water and salt) is necessary through the process of heterogeneous photocatalysis. In this study, Zr/CrO2 (Zirconium-doped chromium IV oxide) nanocomposite-based photocatalysts with different compositions (1, 3, 5, 7 & 9 wt.%) were prepared by an environmentally friendly, solid-state reaction at room temperature. The as-prepared samples were calcined under air at 450 °C in a furnace for a specific period of time. The synthesis of Zr/CrO2 photocatalysts was confirmed by various techniques, including XRD, SEM, EDX, FT-IR, UV-Vis, and BET. The photocatalytic properties of all samples were tested towards the degradation of methylene blue and methyl orange organic dyes under UV light. The results revealed a concentration-dependent photocatalytic activity of photocatalysts, which increased the amount of dopant (up to 5 wt.%). However, the degradation efficiency of the catalysts decreased upon further increasing the amount of dopant due to the recombination of holes and photoexcited electrons.

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