Lakshmi Prasanna V

Rajagopalan V.

Fulltext

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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VIT University

Scientific Reports

In the current research, ZnFe2O4, Zn0.50Cu0.50Fe2O4, ZnFe1.90Bi0.10O4, ZnFe1.95Ce0.05O4, Zn0.50Cu0.50Fe1.90Bi0.10O4 and Zn0.50Cu0.50Fe1.95Ce0.05O4 magnetic nanoparticles were synthesized to remove the BPA (bisphenol A) from contaminated water through photocatalytic performance. The synthesized nanoparticles were characterized by powder XRD, UV-DRS, FT-IR, SEM-EDAX, VSM and XPS. From the XRD results it was observed that the particle size ranged from 38.26 to 30.18 nm. UV-DRS showed the band gap value ranging from 1.94 to 1.04 eV for the fabricated magnetic nanoparticles. Under 250 W UV-light irradiation, degradation of BPA using Zn0.50Cu0.50Fe1.90Bi0.10O4 and Zn0.50Cu0.50Fe1.95Ce0.05O4 nanoparticles were 90.09 and 91.25% in 180 min with the rate constant of (k) 0.02250 and 0.02365 min−1, respectively. The reactive species responsible for photocatalytic degradation were hydroxy radicals and superoxide radicals. 87.89% and 88.91% of degradation was observed after three cycles using Zn0.50Cu0.50Fe1.90Bi0.10O4 and Zn0.50Cu0.50Fe1.95Ce0.05O4 nanoparticles. The outcomes indicated that Zn0.50Cu0.50Fe1.90Bi0.10O4 and Zn0.50Cu0.50Fe1.95Ce0.05O4 nanoparticles show good stability for BPA degradation. © 2019 Taiwan Institute of Chemical Engineers

Journal of the Taiwan Institute of Chemical Engineers

Effect of co-doping of bismuth, copper and cerium in zinc ferrite on the photocatalytic degradation of bisphenol A

Fenton catalysts, H2O2/Fe2+, have been known for a long time and are employed for environmental remediation through the Fenton mechanism involving reactive oxygen species (ROS). Storage and transportation of H2O2 limits its applications. Semiconductor photocatalysts have also been explored extensively toward environmental remediation involving ROS through irradiation of light. There is a need to develop a single catalyst that combines both Fenton and photocatalytic mechanisms. With this objective, we designed and synthesized a new catalyst based on ZnO2/Fe2+ that is useful for environmental remediation. This single catalyst that exhibits simultaneous Fenton-photocatalytic reactions produces H2O2 in situ from the peroxide of ZnO2 (solid), thus avoiding storage and transportation. This new catalyst works in the dark (Fenton-like), under visible light (photo-Fenton) and UV light (photocatalytic) mechanism. Furthermore, the performance is better than the known Fenton catalyst. © 2017 American Chemical Society.

The Journal of Physical Chemistry C

Simultaneous Fenton–Photocatalytic Reactions through a New Single Catalyst (Nano ZnO2 /Fe2+) for Dye Degradation

Black Hydroxylated Titanium Dioxide Prepared via Ultrasonication with Enhanced Photocatalytic Activity

Efficient Photocatalytic Activities of TiO2 Hollow Fibers with Mixed Phases and Mesoporous Walls

Effect of aspect ratio and surface defects on the photocatalytic activity of ZnO nanorods

Nature Materials

Conducting polymer nanostructures for photocatalysis under visible light

Journal of Cleaner Production

Advanced oxidation processes for in-situ production of hydrogen peroxide/hydroxyl radical for textile wastewater treatment: a review

A New Synergetic Nanocomposite for Dye Degradation in Dark and Light

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