photocatalytic degradation of methyl orange and congo red using c,n,s-tridoped sno2 nanoparticles

نویسندگان

azita nouri

ali fakhri

arezu nouri

چکیده

in this study, the photocatalytic degradation of methyl orange and congo red dye was investigated inaqueous solution using c,n,s-tridoped sno2 nanoparticles as a nano photocatalyst. the degradationwas carried out under different conditions including the photocatalyst amount, initial concentrationand ph of the solution. the results indicated that the degradation of methyl orange and congo redwas strongly influenced by these parameters. the best conditions for the degradation of methylorange and congo red were obtained. the optimum value of photocatalyst amount used was 0.4 g/l.it was found that the photodegradation efficiency increase with increasing the initial concentration ofmethyl orange and congo red. the optimum ph of the system used is 6.5.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Photocatalytic degradation of methyl orange and Congo red using C,N,S-tridoped SnO2 nanoparticles

In this study, the photocatalytic degradation of methyl orange and Congo red dye was investigated inaqueous solution using C,N,S-tridoped SnO2 nanoparticles as a nano photocatalyst. The degradationwas carried out under different conditions including the photocatalyst amount, initial concentrationand pH of the solution. The results indicated that the degradation of methyl orange and Congo redwas...

متن کامل

Synthesis of SnO2 and ZnO Nanoparticles and SnO2-ZnO Hybrid for the Photocatalytic Oxidation of Methyl Orange

The aim of the current research is concentrated on the synthesis of the different nanoparticles such as SnO2 </...

متن کامل

Photocatalytic degradation of Congo Red dye by using nano ZnO and Ni-Co-ZnO nanocomposites

Photocatalysis has attracted significant attention as a potential issue for the degradation of toxic organic pollutants such as Congo Red. In this research spherical Pure ZnO nano particles and Ni-Co-ZnO nano composites (Zn0.95Ni0.04Co0.01O,  Zn0.95Ni0.025Co0.025O and  Zn0.95Ni0.01Co0.04O) have been synthesized by precipitation method. X- ray diffraction, Fourier transform Infra Red ,field emis...

متن کامل

Photocatalytic degradation of methyl orange using ZnO and Fe doped ZnO: A comparative study

ZnO and 2% Fe doped ZnO photocatalytic nanomaterials were successfully synthesized by successive ionic layer adsorption and the reaction (SILAR) method. The characterizations of these nanomaterials were carried out using XRD, SEM and EDX techniques. XRD study shows that the samples have a hexagonal wurtzite crystal structure, size of which is in the range 21-23 nm. SEM shows nanoflakes or nano ...

متن کامل

Photocatalytic degradation of methyl red dye

Introduction Most dyes used in the pigmentation of textiles, paper, leather, ceramics, cosmetics, inks and food-processing products are derived from azo dyes, which are characterised by the presence of one or more azo groups (-N=N-) in their structure. Approximately 15% of the dyes produced worldwide are lost within waste water during synthesis and processing. This waste represents a great haza...

متن کامل

Efficient adsorption and photocatalytic degradation of Congo red onto hydrothermally synthesized NiS nanoparticles

NiS nanoparticles (NiS NPs) have been hydrothermally prepared and characterized by the methods of X-ray diffraction, scanning electronic microscope, X-ray photoelectron spectroscopy, UV-Vis diffuse reflectance spectra, photoluminescence, and thermogravimetric analysis. NiS NPs exhibit fast adsorption in the removal of Congo red (CR) in aqueous solution, in which the pseudo-second-order model wa...

متن کامل

منابع من

با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید


عنوان ژورنال:
journal of physical & theoretical chemistry

ISSN

دوره 10

شماره 4 2014

میزبانی شده توسط پلتفرم ابری doprax.com

copyright © 2015-2023