Microwave-assisted synthesis of γ-alooh nanoflowers as an adsorbent for cadmium removal from domestic wastewater.

Autor: Metin B; Faculty of Art and Science, Department of Chemistry, Yildiz Technical University, 34220, Istanbul, Türkiye.; Neutec Pharmaceutical, Yildiz Technical University Teknopark, Istanbul, 34220, Türkiye., Bozyiğit GD; Faculty of Civil Engineering, Department of Environmental Engineering, Yildiz Technical University, Istanbul, 34220, Türkiye., Zaman BT; Faculty of Art and Science, Department of Chemistry, Yildiz Technical University, 34220, Istanbul, Türkiye., Er EÖ; Department of Chemical Engineering, İstanbul Technical University, Istanbul, 34469, Türkiye., Turak F; Faculty of Art and Science, Department of Chemistry, Yildiz Technical University, 34220, Istanbul, Türkiye. fturak@yildiz.edu.tr., Bakırdere S; Faculty of Art and Science, Department of Chemistry, Yildiz Technical University, 34220, Istanbul, Türkiye. bsezgin@yildiz.edu.tr.; Turkish Academy of Sciences (TÜBA), Vedat Dalokay Street, No: 112, Çankaya, 06670, Ankara, Türkiye. bsezgin@yildiz.edu.tr.
Jazyk: angličtina
Zdroj: Environmental monitoring and assessment [Environ Monit Assess] 2024 Oct 01; Vol. 196 (10), pp. 996. Date of Electronic Publication: 2024 Oct 01.
DOI: 10.1007/s10661-024-13175-z
Abstrakt: In this study, cadmium ions were effectively removed from domestic wastewaters using an adsorptive treatment strategy based on γ-AlOOH nanoflowers. A novel, rapid, and simple procedure was developed for the synthesis of the nanoflowers. Characterization studies were performed using X-ray powder diffraction patterns and scanning electron microscope images. The synthesized nanoflowers were utilized as adsorbent in the batch adsorption experiments. The influential parameters of the adsorption process were optimized, and a flame atomic absorption spectrophotometry (FAAS) system was used to determine maximum percent removal of cadmium ions. Matrix-matched calibration strategy, in which the calibration plot was developed in wastewater medium, was utilized for the accurate and precise quantification of cadmium in the effluent samples. The percentage removal efficiency values were calculated between 84 and 98% for different concentrations of cadmium ions in the wastewater samples. Equilibrium data was fitted to the four different linearization methods of the Langmuir isotherm model, as well as the Freundlich isotherm model and Elovich isotherm model. The best fitting was achieved for the Langmuir model with a high R 2 value of 0.9956 and maximum adsorption capacity was calculated as 6.23 mg/g.
(© 2024. The Author(s), under exclusive licence to Springer Nature Switzerland AG.)
Databáze: MEDLINE
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