Sonophotocatalytic degradation of bisphenol A and its intermediates with graphitic carbon nitride

Sharmini Sunasee; Kah Hon Leong; Kien Tiek Wong; Gooyong Lee; Saravanan Pichiah; In Wook Nah; Byong Hun Jeon; Yeomin Yoon; Min Jang

doi:10.1007/s11356-017-8729-7

Sonophotocatalytic degradation of bisphenol A and its intermediates with graphitic carbon nitride

Sharmini Sunasee, Kah Hon Leong, Kien Tiek Wong, Gooyong Lee, Saravanan Pichiah, In Wook Nah, Byong Hun Jeon, Yeomin Yoon, Min Jang

Department of Environmental Science & Engineering

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

84 Scopus citations

Abstract

Since bisphenol A (BPA) exhibits endocrine disrupting action and high toxicity in aqueous system, there are high demands to remove it completely. In this study, the BPA removal by sonophotocatalysis coupled with nano-structured graphitic carbon nitride (g-C ₃ N ₄ , GCN) was conducted with various batch tests using energy-based advanced oxidation process (AOP) based on ultrasound (US) and visible light (Vis-L). Results of batch tests indicated that GCN-based sonophotocatalysis (Vis-L/US) had higher rate constants than other AOPs and especially two times higher degradation rate than TiO ₂ -based Vis-L/US. This result infers that GCN is effective in the catalytic activity in Vis-L/US since its surface can be activated by Vis-L to transport electrons from valence band (VB) for utilizing holes (h ⁺ _VB ) in the removal of BPA. In addition, US irradiation exfoliated the GCN effectively. The formation of BPA intermediates was investigated in detail by using high-performance liquid chromatography-mass spectrometry (HPLC/MS). The possible degradation pathway of BPA was proposed.

Original language	English
Pages (from-to)	1082-1093
Number of pages	12
Journal	Environmental Science and Pollution Research
Volume	26
Issue number	2
DOIs	https://doi.org/10.1007/s11356-017-8729-7
State	Published - 21 Jan 2019

Bibliographical note

Funding Information:
This research was supported by a University of Malaya Research Grant (RP019B-13AET) and partly supported by the Geo-Advanced Innovative Action Project (2012000550002), funded by the Korea Ministry of Environment (MOE).

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

Keywords

Bisphenol A
Graphitic carbon nitride
Intermediates
Sonophotocatalysis
Ultrasound
Visible light

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title = "Sonophotocatalytic degradation of bisphenol A and its intermediates with graphitic carbon nitride",

abstract = " Since bisphenol A (BPA) exhibits endocrine disrupting action and high toxicity in aqueous system, there are high demands to remove it completely. In this study, the BPA removal by sonophotocatalysis coupled with nano-structured graphitic carbon nitride (g-C 3 N 4 , GCN) was conducted with various batch tests using energy-based advanced oxidation process (AOP) based on ultrasound (US) and visible light (Vis-L). Results of batch tests indicated that GCN-based sonophotocatalysis (Vis-L/US) had higher rate constants than other AOPs and especially two times higher degradation rate than TiO 2 -based Vis-L/US. This result infers that GCN is effective in the catalytic activity in Vis-L/US since its surface can be activated by Vis-L to transport electrons from valence band (VB) for utilizing holes (h + VB ) in the removal of BPA. In addition, US irradiation exfoliated the GCN effectively. The formation of BPA intermediates was investigated in detail by using high-performance liquid chromatography-mass spectrometry (HPLC/MS). The possible degradation pathway of BPA was proposed.",

keywords = "Bisphenol A, Graphitic carbon nitride, Intermediates, Sonophotocatalysis, Ultrasound, Visible light",

author = "Sharmini Sunasee and Leong, {Kah Hon} and Wong, {Kien Tiek} and Gooyong Lee and Saravanan Pichiah and Nah, {In Wook} and Jeon, {Byong Hun} and Yeomin Yoon and Min Jang",

note = "Funding Information: This research was supported by a University of Malaya Research Grant (RP019B-13AET) and partly supported by the Geo-Advanced Innovative Action Project (2012000550002), funded by the Korea Ministry of Environment (MOE). Publisher Copyright: {\textcopyright} 2017, Springer-Verlag Berlin Heidelberg.",

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doi = "10.1007/s11356-017-8729-7",

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AU - Sunasee, Sharmini

AU - Leong, Kah Hon

AU - Wong, Kien Tiek

AU - Lee, Gooyong

AU - Pichiah, Saravanan

AU - Nah, In Wook

AU - Jeon, Byong Hun

AU - Yoon, Yeomin

AU - Jang, Min

N1 - Funding Information: This research was supported by a University of Malaya Research Grant (RP019B-13AET) and partly supported by the Geo-Advanced Innovative Action Project (2012000550002), funded by the Korea Ministry of Environment (MOE). Publisher Copyright: © 2017, Springer-Verlag Berlin Heidelberg.

PY - 2019/1/21

Y1 - 2019/1/21

N2 - Since bisphenol A (BPA) exhibits endocrine disrupting action and high toxicity in aqueous system, there are high demands to remove it completely. In this study, the BPA removal by sonophotocatalysis coupled with nano-structured graphitic carbon nitride (g-C 3 N 4 , GCN) was conducted with various batch tests using energy-based advanced oxidation process (AOP) based on ultrasound (US) and visible light (Vis-L). Results of batch tests indicated that GCN-based sonophotocatalysis (Vis-L/US) had higher rate constants than other AOPs and especially two times higher degradation rate than TiO 2 -based Vis-L/US. This result infers that GCN is effective in the catalytic activity in Vis-L/US since its surface can be activated by Vis-L to transport electrons from valence band (VB) for utilizing holes (h + VB ) in the removal of BPA. In addition, US irradiation exfoliated the GCN effectively. The formation of BPA intermediates was investigated in detail by using high-performance liquid chromatography-mass spectrometry (HPLC/MS). The possible degradation pathway of BPA was proposed.

AB - Since bisphenol A (BPA) exhibits endocrine disrupting action and high toxicity in aqueous system, there are high demands to remove it completely. In this study, the BPA removal by sonophotocatalysis coupled with nano-structured graphitic carbon nitride (g-C 3 N 4 , GCN) was conducted with various batch tests using energy-based advanced oxidation process (AOP) based on ultrasound (US) and visible light (Vis-L). Results of batch tests indicated that GCN-based sonophotocatalysis (Vis-L/US) had higher rate constants than other AOPs and especially two times higher degradation rate than TiO 2 -based Vis-L/US. This result infers that GCN is effective in the catalytic activity in Vis-L/US since its surface can be activated by Vis-L to transport electrons from valence band (VB) for utilizing holes (h + VB ) in the removal of BPA. In addition, US irradiation exfoliated the GCN effectively. The formation of BPA intermediates was investigated in detail by using high-performance liquid chromatography-mass spectrometry (HPLC/MS). The possible degradation pathway of BPA was proposed.

KW - Bisphenol A

KW - Graphitic carbon nitride

KW - Intermediates

KW - Sonophotocatalysis

KW - Ultrasound

KW - Visible light

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JF - Environmental Science and Pollution Research

IS - 2

ER -

Sonophotocatalytic degradation of bisphenol A and its intermediates with graphitic carbon nitride

Abstract

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Keywords

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