scholarly journals ZnO quantum dots-graphene composites: Formation mechanism and enhanced photocatalytic activity for degradation of methyl orange dye

2016 ◽  
Vol 663 ◽  
pp. 738-749 ◽  
Author(s):  
Ahmad Tayyebi ◽  
Mohammad outokesh ◽  
Meysam Tayebi ◽  
Azizollah Shafikhani ◽  
S. Sevinç Şengör
Keyword(s):  
Quantum Dots ◽  
Photocatalytic Activity ◽  
Methyl Orange ◽  
Formation Mechanism ◽  
Methyl Orange Dye ◽  
Zno Quantum Dots ◽  
Degradation Of Methyl Orange

scholarly journals Synthesis of Ag/ZnO Photocatalysts for the Photodegradation of Methyl Orange Dye

2021 ◽  
Vol 2 (1) ◽  
pp. 61-69
Author(s):  
Abdul Halim Abdullah ◽  
Elisa Rasouli ◽  
Ernee Noryana Muhamad ◽  
Pooneh Kia
Keyword(s):  
Photocatalytic Activity ◽  
Methyl Orange ◽  
Physicochemical Properties ◽  
Photocatalytic Performance ◽  
Hexagonal Phase ◽  
Characterization Techniques ◽  
Methyl Orange Dye ◽  
Degradation Of Methyl Orange

ZnO and a series of Ag/ZnO photocatalysts were prepared by a precipitation- irradiation method and their photocatalytic performance in photodegradation of methyl orange dye was evaluated. The physicochemical properties of the catalysts were characterized by various characterization techniques. The photocatalysts have a hexagonal phase and were highly agglomerated. TEM images showed a change in morphology of ZnO from rod to nearly spherical with the addition of Ag. Ag/ZnO catalysts exhibited better photocatalytic activity in the degradation of methyl orange compared to pure ZnO. Ag/ZnO contains 2% silver shows the best performance as photocatalyst.

Facile synthesis of ZnO nanoglobules and its photocatalytic activity in the degradation of methyl orange dye under UV irradiation

2015 ◽  
Vol 152 ◽  
pp. 163-165 ◽  
Author(s):  
Rizwan Khan ◽  
M. Shamshi Hassan ◽  
Periyayya Uthirakumar ◽  
Jin Hyeon Yun ◽  
Myung-Seob Khil ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Methyl Orange ◽  
Uv Irradiation ◽  
Facile Synthesis ◽  
Methyl Orange Dye ◽  
Degradation Of Methyl Orange

Growth of Hematite Nanostructures in Iron Foil for Environmental Cleaning

2017 ◽  
Vol 266 ◽  
pp. 101-104 ◽  
Author(s):  
Michelle Lenair Canaria ◽  
Jackie Lou Ramos ◽  
Charles Morgan Sayson ◽  
Mary Donnabelle L. Balela
Keyword(s):  
Photocatalytic Activity ◽  
Methyl Orange ◽  
Uv Light ◽  
Iron Foil ◽  
Minute Amount ◽  
Environmental Cleaning ◽  
Excellent Photocatalytic Activity ◽  
Methyl Orange Dye ◽  
Oxidation In Air ◽  
Degradation Of Methyl Orange

Hematite (Fe2O3) nanostructures were successfully grown on the surface of iron foil by simple thermal oxidation in air. The iron foil was heated at 300 – 700 °C for 8 h to produce Fe2O3 nanosheets and nanowires. The oxide layer is primarily composed of Fe2O3 with a small amount of magnetite (Fe3O4) and wustite (FeO). The photocatalytic activity of the Fe2O3 nanowires was investigated by degradation of methyl orange dye under 30 W UV light in the presence of a minute amount of hydrogen peroxide. The Fe2O3 nanowires exhibit excellent photocatalytic activity, wherein 2.5 ppm of the methyl orange was fully decomposed in 30 min.

Visible light irradiated photocatalytic activity of SnS2-CdS nanocomposite against the degradation of methyl orange dye

2018 ◽  
Vol 33 (5) ◽  
pp. 333-339 ◽  
Author(s):  
D. Prabha ◽  
K. Usharani ◽  
S. Ilangovan ◽  
M. Suganya ◽  
S. Balamurugan ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Methyl Orange ◽  
Visible Light ◽  
Methyl Orange Dye ◽  
Degradation Of Methyl Orange

Photocatalytic Degradation of Methyl Orange Dye with Synthesized Chitosan/Fe2O3Nanocomposite and its Isotherm Studies.

2020 ◽  
Vol 16 ◽  
Author(s):  
Nimisha Jadon ◽  
Gulzar Ahmad Bhat ◽  
Manoharmayum Vishwanath Sharma ◽  
Harendra Kumar Sharma
Keyword(s):  
Methyl Orange ◽  
Dye Degradation ◽  
Dose Effect ◽  
X Ray Diffraction ◽  
Methyl Orange Degradation ◽  
Transmission Electron ◽  
Fourier Transformation Infrared Spectroscopy ◽  
Vis Spectroscopy ◽  
Methyl Orange Dye ◽  
Degradation Of Methyl Orange

Background: The study focuses on the synthesis of chitosan/ Fe2O3 nanocomposite, its characterization and application in methyl orange dye degradation. Methods: The synthesized chitosan/ Fe2O3 nanocomposite was characterized with Powder X-Ray Diffraction, Fourier Transformation Infrared Spectroscopy (FTIR), Transmission Electron Microscopy (TEM) and UV-Vis Spectroscopy. Results: The characterization showed that the Fe2O3nanoparticles were embedded in the polymer matrix of chitosan. The size of the Fe2O3nanoparticles were less than 10nm and the crystallite size was 1.22 nm.The synthesized chitosan/ Fe2O3nanocomposite was tested for methyl orange degradation using different parameters such as effect of contact time, effect of dose, effect of concentration and effect of pH for the degradation of methyl orange dye in aqueous solution.The Fruendlich, Langmuir and Temkin isotherm studies were also conducted for adsoption of methyl orange on Chitosan/ Fe2O3nanocomposite. Conclusion: The study indicated that the synthesized chitosan/Fe2O3 nanocomposite had the potential of degrading methyl orange dye up to 75.04% under the set condition in this experiment which indicate that Chitosan/ Fe2O3 nanocomposite is a viable option that can be used for the degradation of methyl orange dye.

Sign in / Sign up

Export Citation Format

Share Document