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Evaluation of Co-MCM-41 Nanocatalyst for BTEXS Removal in Industrial Wastewater Samples by Headspace Coupled with Gas Chromatography

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Abstract

BTEXS, a group of aromatic hydrocarbon pollutants, is widespread and hazardous. Using headspace and gas chromatography (GC) coupled to a flame ionization detector (FID) as a newly developed simple, low-cost, and accurate method is used to determine and optimize the quantifying BTEXS in water using the Taguchi method. As part of the validation process, linearity, detection limits, and accuracy were investigated. The LOD and LOQ ranged between 0.03–0.32 mg/L and 0.1–1.09 mg/L, respectively. Statistically, the relative standard deviation was less than 12.69% (n = 21). At mg/L levels, headspace coupled to GC-FID is an effective BTEXS analysis method. The Co-MCM-41 nanocatalyst was successfully used to remove BTEXS at levels of 79.27% and 78.61%, respectively, in laboratory-spiked and industrial wastewater samples. The recuperation results appear to have incredible performance and application potential for the BTEXS sorbent. Reusability tests for Co-MCM-41 nanocatalysts showed the highest activity in nine consecutive reaction cycles.

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Data Availability

The datasets generated during and, or analyzed during the current study are available from the corresponding authors on reasonable request.

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Acknowledgements

This research has been extracted from a Ph.D. thesis at Islamic Azad University, Bushehr. The authors would like to acknowledge the Pars Petrochemical Laboratory (ISO/IEC 17025:2012 standard, Accreditation Number: AB- 1096-T) for providing facilities and equipment as well as my dear colleagues for their countless cooperation and encouragement during this research.

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Contributions

Mohammad Heydari: Conceptualization, Data curation, Writing—original draft, Resources, Software, Data curation. Tayebeh Tabatabaie: Validation, review & and editing, Supervision, Data curation. Fazel Amiri: Validation, review & and editing, Supervision, Data curation. Seyed Enayat Hashemi: Validation, review & and editing, Supervision, Data curation.

Corresponding author

Correspondence to Tayebeh Tabatabaie.

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The authors declare no competing interests.

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Highlights

• A new easy-to-use quantification method for BTEXS in water has been developed.

• GC-FID can be a good choice for detecting BTEXS in water samples.

• The Taguchi method was used to achieve the best parameters for removing cyclic hydrocarbons.

• In a dual-walled reactor, BTEXS was successfully eliminated using the Co-MCM-41 nanocatalyst.

• Using methanol to recover Co-MCM-41 nanocatalyst has very stable reactivity, easy and inexpensive regeneration, and re-use.

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Heydari, M., Tabatabaie, T., Amiri, F. et al. Evaluation of Co-MCM-41 Nanocatalyst for BTEXS Removal in Industrial Wastewater Samples by Headspace Coupled with Gas Chromatography. Water Air Soil Pollut 234, 751 (2023). https://doi.org/10.1007/s11270-023-06715-9

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  • DOI: https://doi.org/10.1007/s11270-023-06715-9

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