One-pot, template-free syntheses of spherical ZnS nanocrystals using a new S2−source and their photocatalytic study

CrystEngComm ◽  
2015 ◽  
Vol 17 (11) ◽  
pp. 2359-2367 ◽  
Author(s):  
Manjodh Kaur ◽  
Nipun Kumar Gupta ◽  
C. M. Nagaraja
Keyword(s):  
Solvothermal Method ◽  
Uv Light ◽  
Light Irradiation ◽  
Capping Agent ◽  
Good Activity ◽  
One Pot ◽  
Uv Light Irradiation ◽  
Template Free ◽  
Zns Nanocrystals

A facile, one-pot solvothermal method for the syntheses of template-free ZnS NCs (~3–6 nm) using (C7H7)S2as a newin situsource of S2−ions without and with the use of MCE-capping agent has been demonstrated. Photocatalytic investigation of the NCs revealed very good activity for degradation of MO under UV light irradiation.

scholarly journals Photocatalytic Degradation of Methylene Blue under UV Light Irradiation on Prepared CarbonaceousTiO2

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Zatil Amali Che Ramli ◽  
Nilofar Asim ◽  
Wan N. R. W. Isahak ◽  
Zeynab Emdadi ◽  
Norasikin Ahmad-Ludin ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Activated Carbon ◽  
In Situ Polymerization ◽  
Uv Light ◽  
Carbon Composite ◽  
Light Irradiation ◽  
Uv Light Irradiation ◽  
Transmission Electron ◽  
Vis Spectroscopy

This study involves the investigation of altering the photocatalytic activity of TiO2using composite materials. Three different forms of modified TiO2, namely, TiO2/activated carbon (AC), TiO2/carbon (C), and TiO2/PANi, were compared. The TiO2/carbon composite was obtained by pyrolysis of TiO2/PANi prepared by in situ polymerization method, while the TiO2/activated carbon (TiO2/AC) was obtained after treating TiO2/carbon with 1.0 M KOH solution, followed by calcination at a temperature of 450°C. X-ray powder diffraction (XRD), transmission electron microscopy (TEM), Fourier transform infrared (FTIR), thermogravimetric analysis (TG-DTA), Brunauer-Emmet-Teller (BET), and UV-Vis spectroscopy were used to characterize and evaluate the prepared samples. The specific surface area was determined to be in the following order: TiO2/AC > TiO2/C > TiO2/PANi > TiO2(179 > 134 > 54 > 9 m2 g−1). The evaluation of photocatalytic performance for the degradation of methylene blue under UV light irradiation was also of the same order, with 98 > 84.7 > 69% conversion rate, which is likely to be attributed to the porosity and synergistic effect in the prepared samples.

Template free zinc vanadate flower synthesis, characterization and efficiency for cetirizine-dihydrochloride degradation under UV light irradiation

2021 ◽  
pp. 124968
Author(s):  
Munawar Iqbal ◽  
Ijaz Ahmad Bhatti ◽  
Khizar Qureshi ◽  
M. Zubair Ahmad ◽  
Sobhy M. Ibrahim ◽  
...  
Keyword(s):  
Uv Light ◽  
Light Irradiation ◽  
Uv Light Irradiation ◽  
Free Zinc ◽  
Template Free

Template-free syntheses of CdS microspheres composed of ultrasmall nanocrystals and their photocatalytic study

RSC Advances ◽  
2014 ◽  
Vol 4 (35) ◽  
pp. 18257-18263 ◽  
Author(s):  
Manjodh Kaur ◽  
C. M. Nagaraja
Keyword(s):  
Photocatalytic Activity ◽  
Solvothermal Method ◽  
Capping Agent ◽  
One Pot ◽  
Sunlight Irradiation ◽  
Natural Sunlight ◽  
Template Free

A one-pot, template-free, solvothermal method for synthesizing CdS microspheres composed of ultrasmall (∼2 nm) nanocrystals without and with the use of MCE-capping agent has been developed. The photocatalytic activity of the microspheres for degradation of MO under UV and natural sunlight irradiation has been compared.

Dynamics of liquid crystal azimuthal anchoring at a poly(vinyl cinnamate) interface measured in situ during polarized UV light irradiation

2002 ◽  
Vol 29 (2) ◽  
pp. 273-279 ◽  
Author(s):  
V. V. Lazarev ◽  
R. Barberi ◽  
M. Iovane ◽  
L. Papalino ◽  
L. M. Blinov
Keyword(s):  
Liquid Crystal ◽  
Uv Light ◽  
Light Irradiation ◽  
Uv Light Irradiation ◽  
Vinyl Cinnamate

Construction from destruction using a photo-triggered self-propagating degradable polyurethane as a one-pot epoxy

2020 ◽  
Vol 11 (38) ◽  
pp. 6215-6220
Author(s):  
Yanhua Xu ◽  
Ephraim G. Morado ◽  
Steven C. Zimmerman
Keyword(s):  
Uv Light ◽  
Light Irradiation ◽  
One Pot ◽  
Uv Light Irradiation

We report a photo-triggered, base generating, base propagating degradable polyurethane that is triggered by 365 nm UV light irradiation.

scholarly journals TiO2-Powdered Activated Carbon (TiO2/PAC) for Removal and Photocatalytic Properties of 2-Methylisoborneol (2-MIB) in Water

Water ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 1622
Author(s):  
Xiao-Pin Guo ◽  
Peng Zang ◽  
Yong-Mei Li ◽  
Dong-Su Bi
Keyword(s):  
Activated Carbon ◽  
Natural Organic Matter ◽  
Uv Light ◽  
Sol Gel ◽  
Light Irradiation ◽  
Nano Tio2 ◽  
Uv Light Irradiation ◽  
Adsorption Capacities ◽  
Taste And Odor ◽  
Composite Photocatalysts

2-methylisoborneol (2-MIB) is a common taste and odor compound caused by off-flavor secondary metabolites, which represents one of the greatest challenges for drinking water utilities worldwide. A TiO2-coated activated carbon (TiO2/PAC) has been synthesized using the sol-gel method. A new TiO2/PAC photocatalyst has been successfully employed in photodegradation of 2-MIB under UV light irradiation. In addition, the combined results of XRD, SEM-EDX, FTIR and UV-Vis suggested that the nano-TiO2 had been successfully loaded on the surface of PAC. Experimental results of 2-MIB removal indicated that the adsorption capacities of PAC for 2-MIB were higher than that of TiO2/PAC. However, in the natural organic matter (NOM) bearing water, the removal efficiency of 2-MIB by TiO2/PAC and PAC were 97.8% and 65.4%, respectively, under UV light irradiation. Moreover, it was shown that the presence of NOMs had a distinct effect on the removal of MIB by TiO2/PAC and PAC. In addition, a simplified equivalent background compound (SEBC) model could not only be used to describe the competitive adsorption of MIB and NOM, but also represent the photocatalytic process. In comparison to other related studies, there are a few novel composite photocatalysts that could efficiently and rapidly remove MIB by the combination of adsorption and photocatalysis.

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