Photocatalytic degradation mechanisms of dimethyl phthalate esters by MWCNTs-anatase TiO2 nanocomposites using the UHPLC/Orbitrap/MS technique
Dimethyl phthalate esters (DMPEs) have been identified as endocrine disrupting plastisizers and emerging contaminants which can be released readily upon exposure to the environment. In this study, MWCNTs/TiO2 nanocomposites, which possess the potential application for the photocatalytic degradation...
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| Format: | Article |
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Elsevier BV
2020
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| Online Access: | http://psasir.upm.edu.my/id/eprint/87157/ |
| _version_ | 1848860375152328704 |
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| author | Tong, Ling Tan Kian, Mun Lee Chin, Wei Lai Sok, Lai Hong Abdul Rashid, Suraya |
| author_facet | Tong, Ling Tan Kian, Mun Lee Chin, Wei Lai Sok, Lai Hong Abdul Rashid, Suraya |
| author_sort | Tong, Ling Tan |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Dimethyl phthalate esters (DMPEs) have been identified as endocrine disrupting plastisizers and emerging contaminants which can be released readily upon exposure to the environment. In this study, MWCNTs/TiO2 nanocomposites, which possess the potential application for the photocatalytic degradation of DMPEs under UV irradiation, were prepared via simple one-pot sol-gel reaction using titanium isopropoxide (TTIP) as titania precursor and multiwalled carbon nanotubes (MWCNTs). The MWCNTs/TiO2 nanocomposites was calcined in air for 2 h at the temperatures ranging from 350 to 750 °C. As a result, the MWCNTs/TiO2 nanocomposites synthesized at calcination temperature of 450 °C demonstrated the highest photodegradation efficiency of 97% after 180 min UV irradiation and its degraded products were evaluated using the ultra high performance liquid chromatography (UHPLC) coupled with a high resolution (HR) Orbitrap mass spectrometry (MS). A primary degradation mechanism was proposed and it was noteworthy that some new intermediates were discovered and reported. This work has developed a simple method for qualitative determination of DMPEs based on HPLC with UV detection. |
| first_indexed | 2025-11-15T12:44:14Z |
| format | Article |
| id | upm-87157 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-15T12:44:14Z |
| publishDate | 2020 |
| publisher | Elsevier BV |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-871572024-05-20T07:31:55Z http://psasir.upm.edu.my/id/eprint/87157/ Photocatalytic degradation mechanisms of dimethyl phthalate esters by MWCNTs-anatase TiO2 nanocomposites using the UHPLC/Orbitrap/MS technique Tong, Ling Tan Kian, Mun Lee Chin, Wei Lai Sok, Lai Hong Abdul Rashid, Suraya Dimethyl phthalate esters (DMPEs) have been identified as endocrine disrupting plastisizers and emerging contaminants which can be released readily upon exposure to the environment. In this study, MWCNTs/TiO2 nanocomposites, which possess the potential application for the photocatalytic degradation of DMPEs under UV irradiation, were prepared via simple one-pot sol-gel reaction using titanium isopropoxide (TTIP) as titania precursor and multiwalled carbon nanotubes (MWCNTs). The MWCNTs/TiO2 nanocomposites was calcined in air for 2 h at the temperatures ranging from 350 to 750 °C. As a result, the MWCNTs/TiO2 nanocomposites synthesized at calcination temperature of 450 °C demonstrated the highest photodegradation efficiency of 97% after 180 min UV irradiation and its degraded products were evaluated using the ultra high performance liquid chromatography (UHPLC) coupled with a high resolution (HR) Orbitrap mass spectrometry (MS). A primary degradation mechanism was proposed and it was noteworthy that some new intermediates were discovered and reported. This work has developed a simple method for qualitative determination of DMPEs based on HPLC with UV detection. Elsevier BV 2020 Article PeerReviewed Tong, Ling Tan and Kian, Mun Lee and Chin, Wei Lai and Sok, Lai Hong and Abdul Rashid, Suraya (2020) Photocatalytic degradation mechanisms of dimethyl phthalate esters by MWCNTs-anatase TiO2 nanocomposites using the UHPLC/Orbitrap/MS technique. Advanced Powder Technology, 31 (2). 533 - 547. ISSN 0921-8831 https://linkinghub.elsevier.com/retrieve/pii/S0921883119304194 10.1016/j.apt.2019.11.010 |
| spellingShingle | Tong, Ling Tan Kian, Mun Lee Chin, Wei Lai Sok, Lai Hong Abdul Rashid, Suraya Photocatalytic degradation mechanisms of dimethyl phthalate esters by MWCNTs-anatase TiO2 nanocomposites using the UHPLC/Orbitrap/MS technique |
| title | Photocatalytic degradation mechanisms of dimethyl phthalate esters by MWCNTs-anatase TiO2 nanocomposites using the UHPLC/Orbitrap/MS technique |
| title_full | Photocatalytic degradation mechanisms of dimethyl phthalate esters by MWCNTs-anatase TiO2 nanocomposites using the UHPLC/Orbitrap/MS technique |
| title_fullStr | Photocatalytic degradation mechanisms of dimethyl phthalate esters by MWCNTs-anatase TiO2 nanocomposites using the UHPLC/Orbitrap/MS technique |
| title_full_unstemmed | Photocatalytic degradation mechanisms of dimethyl phthalate esters by MWCNTs-anatase TiO2 nanocomposites using the UHPLC/Orbitrap/MS technique |
| title_short | Photocatalytic degradation mechanisms of dimethyl phthalate esters by MWCNTs-anatase TiO2 nanocomposites using the UHPLC/Orbitrap/MS technique |
| title_sort | photocatalytic degradation mechanisms of dimethyl phthalate esters by mwcnts-anatase tio2 nanocomposites using the uhplc/orbitrap/ms technique |
| url | http://psasir.upm.edu.my/id/eprint/87157/ http://psasir.upm.edu.my/id/eprint/87157/ http://psasir.upm.edu.my/id/eprint/87157/ |