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

Sharmini Sunasee; Kien Tiek Wong; Gooyong Lee; Saravanan Pichiah; Shaliza Ibrahim; Chulhwan Park; Nam Chan Kim; Yeomin Yoon; Min Jang

doi:10.1007/s11356-017-9124-0

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

Sharmini Sunasee, Kien Tiek Wong, Gooyong Lee, Saravanan Pichiah, Shaliza Ibrahim, Chulhwan Park, Nam Chan Kim, Yeomin Yoon, Min Jang

Department of Environmental Science & Engineering

Research output: Contribution to journal › Article › peer-review

33 Scopus citations

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.

Original language	English
Pages (from-to)	15488-15499
Number of pages	12
Journal	Environmental Science and Pollution Research
Volume	24
Issue number	18
DOIs	https://doi.org/10.1007/s11356-017-9124-0
State	Published - 1 Jun 2017

Bibliographical note

Publisher Copyright:
© 2017, Springer-Verlag Berlin Heidelberg.

Keywords

Bisphenol A
Mineralization
Oxidation
Sonophotocatalysis
TiO
Ultrasound

Access to Document

10.1007/s11356-017-9124-0

Cite this

@article{206c0e0a98a6494bba5a46e3d80478f0,

title = "Titanium dioxide-based sonophotocatalytic mineralization of bisphenol A and its intermediates",

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.",

keywords = "Bisphenol A, Mineralization, Oxidation, Sonophotocatalysis, TiO, Ultrasound",

author = "Sharmini Sunasee and Wong, {Kien Tiek} and Gooyong Lee and Saravanan Pichiah and Shaliza Ibrahim and Chulhwan Park and Kim, {Nam Chan} and Yeomin Yoon and Min Jang",

note = "Publisher Copyright: {\textcopyright} 2017, Springer-Verlag Berlin Heidelberg.",

year = "2017",

month = jun,

day = "1",

doi = "10.1007/s11356-017-9124-0",

language = "English",

volume = "24",

pages = "15488--15499",

journal = "Environmental Science and Pollution Research",

issn = "0944-1344",

publisher = "Springer Science + Business Media",

number = "18",

}

TY - JOUR

T1 - Titanium dioxide-based sonophotocatalytic mineralization of bisphenol A and its intermediates

AU - Sunasee, Sharmini

AU - Wong, Kien Tiek

AU - Lee, Gooyong

AU - Pichiah, Saravanan

AU - Ibrahim, Shaliza

AU - Park, Chulhwan

AU - Kim, Nam Chan

AU - Yoon, Yeomin

AU - Jang, Min

PY - 2017/6/1

Y1 - 2017/6/1

N2 - 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.

AB - 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.

KW - Bisphenol A

KW - Mineralization

KW - Oxidation

KW - Sonophotocatalysis

KW - TiO

KW - Ultrasound

UR - http://www.scopus.com/inward/record.url?scp=85019265988&partnerID=8YFLogxK

U2 - 10.1007/s11356-017-9124-0

DO - 10.1007/s11356-017-9124-0

M3 - Article

C2 - 28512708

AN - SCOPUS:85019265988

SN - 0944-1344

VL - 24

SP - 15488

EP - 15499

JO - Environmental Science and Pollution Research

JF - Environmental Science and Pollution Research

IS - 18

ER -

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

Abstract

Bibliographical note

Keywords

Access to Document

Fingerprint

Cite this