ISI Papers With Our Products
Title: Fabrication of an Inexpensive and High Efficiency Microphotoreactor Using Co2 Laser Technique for Photocatalytic Water Treatment Applications
Journal: Environmental technology
Author: 1. Hamed Eskandarloo, Alireza Badiei
Year: 2015
Address: 1. School of Chemistry, College of Science, University of Tehran, Tehran, Iran
Abstract: In this study, a microphotoreactor with catalyst immobilized microchannels was designed and
fabricated using CO2 laser as a simple and inexpensive technique. The microphotoreactor is
composed of an array of microchannels, a quartz plate, and an array of UV–LEDs. The
microchannels with dimension of 400 μm width, 50 μm depth, and 80 cm length was
inscribed on a flat plate of poly(methyl methacrylate) (PMMA). The illuminated specific
surface area for the designed microreactor was calculated to be 25000 m–1. To examine the
performance of miniaturized photoreactor, the photocatalytic degradation of 4–Nitrophenol as
a refractory pollutant was investigated. The effects of operational variables on the
performance of microphotoreactor were studied. The higher photocatalytic degradation is
obtained for low flow rates, high light intensities, long microchannels lengths, and low inlet
concentrations. Also, the performance of microphotoreactor was examined in the presence of
different types of TiO2 catalysts with an average particle size between 5 to 27 nm (such as
P25, PC500, Merck, and UV100) and textile dyes with different chemical structures (such as
Acid Orange 7, Acid Violet 19, Basic Red 46, Methyl Orange, and Malachite Green). Finally,
the reusability of miniaturized photoreactor was evaluated and the results showed satisfactory
stability and reusability for the designed microreactor in photocatalytic degradation of organic
pollutants.
Keywords: Microphotoreactor; Inexpensive fabrication; Immobilized microchannel;
Photocatalytic degradation; UV–LEDs
Application: Water Treatment
Product Model 1: Syringe Pump (SP1000)
Product Model 2:
URL: http://iahr.tandfonline.com/doi/abs/10.1080/09593330.2014.974681#="http://iahr.tandfonline.com" & "/doi/abs/10.1080/09593330.2014.974681"#