Arifin, Siti Nor Hidayah and Radin Mohamed, Radin Maya Saphira and Al-Gheethi, Adel and Lai, Chin Wei and Gopalakrishnan, Yashni and Hairuddin, Nur Diyana and Vo, Dai-Viet (2023) Photocatalytic degradation of triclocarban in aqueous solution using a modified zeolite/TiO2 composite: kinetic, mechanism study and toxicity assessment. Environmental Science and Pollution Research, 30 (10). pp. 25103-25118. ISSN 0944-1344, DOI https://doi.org/10.1007/s11356-021-16732-y.
Full text not available from this repository.Abstract
The current work aimed to investigate the degradation of the triclocarban (TCC) in aqueous solution using a modified zeolite/TiO2 composite (MZTC) synthesized by applying the electrochemical anodization (ECA). The synthesis process was conducted at different voltages (10, 40, and 60) V in 1 h and using electrophoresis deposition (EPD) in doping zeolite. The MZTC was covered with the array ordered, smooth and optimum elongated nanotubes with 5.1 mu m of the length, 120.3 nm of the inner diameter 14.5 nm of the wall thickness with pure titanium and crystalline titania as determined by FESEM/EDS, and XRD. The kinetic study by following Langmuir-Hinshelwood(L-H) model and pseudo first order, the significant constant rate was obtained at pH 11 which was 0.079 ppm/min, 0.75 cm(2) of MZTC catalyst loading size achieved 0.076 ppm/min and 5 ppm of TCC initial concentration reached 0.162 ppm/min. The high-performance liquid chromatography (HPLC) analysis for mechanism study of TCC photocatalytic degradation revealed eleven intermediate products after the whole process of photocatalysis. In regard of toxicology assessment by the bacteria which is Photobacterium phosphoreum, the obtained concentration of TCC at minute 60 was less satisfied with remained 0.36 ppm of TCC was detected indicates that the concentration was above allowable level. Where the allowable level of TCC in stream is 0.1 ppm.
| Item Type: | Article |
|---|---|
| Funders: | Ministry of Education, Malaysia (FRGS/1/2018/WAB05/UTHM/02/2) ; (K090), Universiti Tun Hussein Onn Malaysia (U777) |
| Uncontrolled Keywords: | Photocatalysis; Nanocomposite; Secondary byproducts; Photobacterium phosphoreum |
| Subjects: | G Geography. Anthropology. Recreation > GE Environmental Sciences T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | Deputy Vice Chancellor (Research & Innovation) Office > Nanotechnology & Catalysis Research Centre |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 11 Sep 2025 08:04 |
| Last Modified: | 11 Sep 2025 08:04 |
| URI: | http://eprints.um.edu.my/id/eprint/50557 |
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