Titanium dioxide-based sonophotocatalytic mineralization of bisphenol A and its intermediates

Environmental Science and Pollution Research International
Sharmini SunaseeMin Jang

Abstract

In this study, bisphenol A (BPA) removal by sonophotocatalysis coupled with commercially available titanium dioxide (TiO2, P25) was assessed in batch tests using energy-based advanced oxidation combining ultrasound (US) and ultraviolet (UV). The kinetics of BPA removal were systematically evaluated by changing operational parameters, such as US frequency and power, mechanical stirring speed, and temperature, but also comparison of single and coupled systems under the optimum US conditions (35 kHz, 50 W, 300 rpm stirring speed, and 20 °C). The combination of US/UV/P25 exhibited the highest BPA removal rate (28.0 × 10-3 min-1). In terms of the synergy index, the synergistic effect of sonophotocatalysis was found to be 2.2. This indicated that sonophotocatalysis has a considerably higher removal efficiency than sonocatalysis or photocatalysis. The removal of BPA was further investigated to identify BPA byproducts and intermediates using high-performance liquid chromatography-mass spectrometry. Five main intermediates were formed during sonophotocatalytic degradation, and complete removal of BPA and its intermediates was obtained after 3 h of operation. The degradation pathway of BPA by sonophotocatalysis was also elucidated.

References

Sep 1, 1990·Ultrasonics·K S SuslickE B Flint
Jun 21, 2001·Environmental Science & Technology·Y OhkoA Fujishima
May 22, 2003·Chemosphere·Natsuko WatanabeHisao Hidaka
Mar 30, 2004·Ultrasonics·T TuziutiS Koda
Jun 29, 2004·Journal of Colloid and Interface Science·Saeid Azizian
Oct 12, 2004·Ultrasonics Sonochemistry·Mohammad H EntezariAli Sarafraz-Yazdi
Oct 20, 2004·Water Research·Mukesh GoelMadhumita Bhowmick Ray
Apr 26, 2005·Ultrasonics Sonochemistry·Zhaobing GuoRuo Feng
Jun 6, 2006·Ultrasonics Sonochemistry·S Findik, G Gündüz
Jun 30, 2006·Ultrasonics·Masaki KitajimaShigeo Hayashi
Nov 25, 2006·Ultrasonics Sonochemistry·Néstor Javier Bejarano-Pérez, Marco Fidel Suárez-Herrera
Feb 3, 2007·Environmental Science & Technology·Ricardo A TorresCesar Pulgarin
Apr 28, 2007·Ultrasonics Sonochemistry·Parag KanthaleFranz Grieser
Jul 24, 2007·Ultrasonics Sonochemistry·Isil Gültekin, Nilsun H Ince
Mar 5, 2009·Physical Review Letters·Adam BrotchieMuthupandian Ashokkumar
Mar 14, 2009·Ultrasonics Sonochemistry·Collin G JosephDuduku Krishnaiah
Apr 27, 2010·Ultrasonics Sonochemistry·Bernaurdshaw NeppolianMuthupandian Ashokkumar
May 15, 2010·Ultrasonics Sonochemistry·Mohammad Taghi Taghizadeh, Reza Abdollahi
Dec 9, 2010·Journal of Environmental Management·Fenglian Fu, Qi Wang
Mar 23, 2012·Ultrasonics Sonochemistry·Zhiliang ChengYuming Huang

❮ Previous
Next ❯

Citations

Sep 22, 2019·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·UNKNOWN JagannathanMadhavanUNKNOWN MuthupandianAshokkumar

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Environmental Science and Pollution Research International
Sharmini SunaseeMin Jang
Ultrasonics Sonochemistry
Jagannathan MadhavanMuthupandian Ashokkumar
Water Science and Technology : a Journal of the International Association on Water Pollution Research
Jagannathan MadhavanMuthupandian Ashokkumar
© 2022 Meta ULC. All rights reserved