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Photocatalytic degradation of triclocarban in aqueous solution using a modified zeolite/TiO2 composite: kinetic, mechanism study and toxicity assessment

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 μm 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 cm2 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.

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All the data used in this paper are presented in the main manuscript.

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Acknowledgements

The research was supported by Ministry of Higher Education Malaysia (MOHE) through FRGS/1/2018/WAB05/UTHM/02/2 vot K090 (An Insight of Xenobiotic Organic Compounds (XOCs) Degradation in Greywater via Photocatalytic Enhancement for Water Resources Protection) and Universiti Tun Hussein Onn Malaysia for GPPS grant, vot U777 for the financial support to this project.

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Siti Nor Hidayah Arifin: Methodology Investigation and manuscript draft

Radin Maya Saphira Radin Mohamed: Conceptualization, Supervision, Writing - review & editing

Adel Al-Gheethi: Conceptualization, Supervision Writing - review & editing

Lai Chin Wei: Supervision, writing—review and editing

Yashni. G: writing—review and editing

Nur Diyana Hairuddin: writing—review and editing

Dai-Viet N. Vo:writing—review and editing

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Correspondence to Radin Maya Saphira Radin Mohamed.

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Arifin, S.N.H., Radin Mohamed, R.M.S., Al-Gheethi, A. et al. Photocatalytic degradation of triclocarban in aqueous solution using a modified zeolite/TiO2 composite: kinetic, mechanism study and toxicity assessment. Environ Sci Pollut Res 30, 25103–25118 (2023). https://doi.org/10.1007/s11356-021-16732-y

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  • DOI: https://doi.org/10.1007/s11356-021-16732-y

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