Photocatalytic degradation of Methyl Red dye in aqueous solutions under UV irradiation using Ag+ doped TiO2

Desalination ◽  
2005 ◽  
Vol 181 (1-3) ◽  
pp. 91-100 ◽  
Author(s):  
C. Sahoo ◽  
A.K. Gupta ◽  
Anjali Pal
Keyword(s):  
Aqueous Solutions ◽  
Photocatalytic Degradation ◽  
Uv Irradiation ◽  
Methyl Red ◽  
Doped Tio2 ◽  
Red Dye

Photocatalytic degradation of methyl red dye by silica nanoparticles

2008 ◽  
Vol 154 (1-3) ◽  
pp. 245-253 ◽  
Author(s):  
Y. Badr ◽  
M.G. Abd El-Wahed ◽  
M.A. Mahmoud
Keyword(s):  
Photocatalytic Degradation ◽  
Silica Nanoparticles ◽  
Methyl Red ◽  
Red Dye

scholarly journals Hen feather a bio-waste material for adsorptive removal of methyl red dye from aqueous solutions

2021 ◽  
Author(s):  
Samina Zaman ◽  
Md. Nayeem Mehrab ◽  
Md. Shahnul Islam ◽  
Gopal Chandra Ghosh ◽  
Tapos Kumar Chakraborty
Keyword(s):  
Aqueous Solutions ◽  
Contact Time ◽  
Low Cost ◽  
Freundlich Isotherm ◽  
Methyl Red ◽  
Experimental Conditions ◽  
Potential Applicability ◽  
Pseudo Second Order ◽  
Red Dye ◽  
Adsorbent Dose

Abstract This study investigates the potential applicability of hen feather (HF) to remove methyl red (MR) dye from aqueous solution with the variation of experimental conditions: contact time (1–180 min), pH (4–8), initial dye concentration (5–50 mg/L) and adsorbent dose (3–25 g/L). Scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR) evaluate the surface morphology and chemistry of HF, respectively. The maximum removal of MR by HF was 92% when the optimum conditions were initial MR dye concentration 05 mg/L, pH 4.0, adsorbent dose 07.0 g/L and 90.0 min equilibrium contact time. Langmuir isotherm (R2 = 0.98) was more suited than Freundlich isotherm (R2 = 0.96) for experimental data, and the highest monolayer adsorption capacity was 6.02 mg/g. The kinetics adsorption data fitted well to pseudo-second-order model (R2 = 0.999) and more than one process were involved during the adsorption mechanism but film diffusion was the potential rate-controlling step. The findings of the study show that HF is a very effective and low-cost adsorbent for removing MR dye from aqueous solutions.

scholarly journals Efficiency of Photocatalytic Degradation of Humic Acid Using Magnetic Nanoparticles (Fe-doped TiO2@Fe3O4) in Aqueous Solutions

Health Scope ◽  
2020 ◽  
Vol 9 (2) ◽  
Author(s):  
Hossein Moein ◽  
Gholamreza Nabi Bidhendi ◽  
Naser Mehrdadi ◽  
Hossein Kamani
Keyword(s):  
Magnetic Nanoparticles ◽  
Humic Acid ◽  
Aqueous Solutions ◽  
Photocatalytic Degradation ◽  
High Efficiency ◽  
Sol Gel ◽  
Reaction Times ◽  
Doped Tio2 ◽  
Natural Organic Matters ◽  
Uv Lamp

Background: Among water pollutants, Natural Organic Matters (NOMs) are highly important for making problems in water treatment plants. Objectives: The main objective of this study was to investigate the efficiency of photocatalytic degradation of humic acid using magnetic nanoparticles (Fe-doped TiO2@Fe3O4) in aqueous solutions. Methods: In the present experiment, Fe-doped TiO2@Fe3O4 nanoparticles were synthesized by the sol-gel method, and SEM, XRD, and DRS analyzes were utilized to characterize the synthesized nanoparticles. The effects of various variables, including pH (3 - 11), initial concentration of humic acid (20 - 80 mg/L), and concentration of nanoparticles (250 - 2000 mg/L) at different reaction times (15 - 60 min) were investigated on the photocatalytic degradation of humic acid. Results: The maximum degradation efficiency of humic acid at pH 3, the initial humic acid concentration of 5 mg/L, nanoparticle dose of 400 mg/L, and reaction time of 60 min using a 15-W bare UV lamp. Conclusions: Due to the high efficiency of photocatalytic degradation, it is proposed to use for the removal of humic acid from water resources.

Photocatalytic degradation of C.I. Direct Red 23 in aqueous solutions under UV irradiation using SrTiO3/CeO2 composite as the catalyst

2008 ◽  
Vol 152 (3) ◽  
pp. 1301-1308 ◽  
Author(s):  
Shuang Song ◽  
Lejin Xu ◽  
Zhiqiao He ◽  
Haiping Ying ◽  
Jianmeng Chen ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Photocatalytic Degradation ◽  
Uv Irradiation

scholarly journals Photocatalytic degradation of 2,4,6-trichlorophenol in aqueous solutions using synthesized Fe-doped TiO2 nanoparticles via response surface methodology

2020 ◽  
Vol 183 ◽  
pp. 366-373 ◽  
Author(s):  
Anis Jahantiq ◽  
Reza Ghanbari ◽  
Ayat Hossein Panahi ◽  
Seyed Davoud Ashrafi ◽  
Aram Dokht Khatib ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Aqueous Solutions ◽  
Photocatalytic Degradation ◽  
Response Surface ◽  
Tio2 Nanoparticles ◽  
Doped Tio2
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