A study of mechanism and operational parameters on solar light-induced degradation of Reactive Red 120 dye with AgBr-loaded TiO2

2013 ◽  
Vol 41 (2) ◽  
pp. 1227-1241 ◽  
Author(s):  
R. Velmurugan ◽  
M. Swaminathan
Keyword(s):  
Solar Light ◽  
Operational Parameters ◽  
Reactive Red 120

scholarly journals EFFECT OF OPERATIONAL PARAMETERS ON PHOTOCATALYTIC DEGRADATION OF TOLUIDINE BLUE UTILIZING BiOCl NANOPLATES IN SOLAR LIGHT

2020 ◽  
Vol 4 (12) ◽  
pp. 43-54
Author(s):  
Brijesh Pare ◽  
Vaishali Joshi ◽  
Satish Piplode
Keyword(s):  
Photocatalytic Degradation ◽  
Toluidine Blue ◽  
Average Particle Size ◽  
Solar Light ◽  
Catalyst Loading ◽  
Blue Dye ◽  
Average Particle ◽  
Operational Parameters ◽  
X Ray Diffraction ◽  
Sem Images

This work is devoted to the study of the effects of various operational parameters such asH2O2, K2S2O8, NaCl, Na2CO3, FeCl3, Fenton’s reagent, O2, N2 purging, effect of otherphotocatalysts on the photocatalytic degradation of toluidine blue dye by as synthesized nanoBiOCl under solar light in following conditions pH= 11, catalyst loading= 30 mg/100ml andinitial dye concentration= 4 × 10-5 mol L-1. Nano BiOCl was prepared by a simple hydrolysismethod at room temperature and characterized by X-ray diffraction (XRD) and HighResolution Field Emission Scanning Microscope (HR FESEM). XRD pattern suggested thatthe synthesized nano BiOCl was highly pure and crystalline, SEM images depicted theplatelike morphology of nano BiOCl. The average particle size of nano BiOCl was obtained as45 nm. It was observed that these operational parameters greatly influenced the rate ofphotocatalytic degradation. The optimum concentrations of oxidants, salts, FeCl3 andFenton’s reagent for photocatalysis of toluidine blue have also been obtained.

Removal of Cu(II)-EDTA Complex Using TiO2/Solar Light: The Effect of Operational Parameters and Feasibility of Solar Light Application

2006 ◽  
Vol 41 (6) ◽  
pp. 1027-1041 ◽  
Author(s):  
IL-HYOUNG CHO ◽  
IN-SOO SHIN ◽  
JAE-KYU YANG ◽  
SEUNG-MOK LEE ◽  
WON-TAE SHIN
Keyword(s):  
Solar Light ◽  
Operational Parameters ◽  
Edta Complex

Electron sources: Past, present, and future

1993 ◽  
Vol 51 ◽  
pp. 764-765
Author(s):  
David C Joy
Keyword(s):  
Glass Tube ◽  
Source Size ◽  
Electron Gun ◽  
Operating Parameters ◽  
Operational Parameters ◽  
Electron Sources ◽  
Difficult Decision ◽  
Probe Size ◽  
Wide Range ◽  
Overall Performance

The electron source is the most important component of the Scanning electron microscope (SEM) since it is this which will determine the overall performance of the machine. The gun performance can be described in terms of quantities such as its brightness, its source size, its energy spread, and its stability and, depending on the chosen application, any of these factors may be the most significant one. The task of the electron gun in an SEM is, in fact, particularly difficult because of the very wide range of operational parameters that may be required e.g a variation in probe size of from a few angstroms to a few microns, and a probe current which may go from less than a pico-amp to more than a microamp. This wide range of operating parameters makes the choice of the optimum source for scanning microscopy a difficult decision.Historically, the first step up from the sealed glass tube ‘cathode ray generator’ was the simple, diode, tungsten thermionic emitter.

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