Synthesis and application of SBA-15 adsorbent for the removal of organic and inorganic substances

被引：0
作者：
Yadoun, Bouchra [1 ]
Benhamou, Abdellah [1 ]
Hennous, Mohammed [1 ]
Benyoub, Nassima [1 ]
Debab, Abdelkader [1 ]
机构：
[1] Process and Environmental Engineering Research Laboratory, Department of Chemical Engineering, Faculty of Chemistry, University of Science and Technology of Oran Mohamed Boudiaf USTO-MB, BP 1505 El-Mnouar, Oran
来源：
Environmental Science and Pollution Research | 2024年 / 31卷 / 47期
关键词：
Adsorption; APTES; Copper; Dyes; Heavy metals; Mesoporous material; Naphthol Green B; SBA-15;
D O I：
10.1007/s11356-024-34964-6
中图分类号：
学科分类号：
摘要：
This study investigates the adsorption of pollutants with different chemical structures; organic Naphtol Green B (NGB) dye and copper on a nanocomposite material with a hexagonal structure of the SBA-15 type. This research is divided into two main parts: the first carries out the synthesis of SBA-15 (Santa Barbra Amourphous) and its derivatives phases functionalized by 3-aminopropyl-triethoxylane (APTES) and calcined at 823 K. The second part presents the influence of the adsorption conditions on the adsorption efficiency of NGB dye and copper. High-resolution X-ray diffractogram (XRD) showed three distinct peaks characteristic of highly ordered mesoporous material. Nitrogen adsorption–desorption isotherm of SBA-15 at 77 K° is type IV typical of mesoporous materials. In addition, Fourier transform infrared spectroscopy (FT-IR) was also used in the characterization before and after the adsorption of the selected pollutants. At optimal conditions of pH 5.2, initial concentration of 50 mg/L, adsorbent dosage of 20 mg, and at adsorption time of 90 min the maximum removal of pollutants reached 76% and the adsorption capacity was 227.25 mg/g for NGB dye and 221.006 mg/g for copper. Furthermore, the adsorption kinetics followed the pseudo-second-order model, indicating that chemisorption was the dominant mechanism and the Sips isotherm model best described the adsorption data. Our research demonstrates that the SBA-15 material after modification is an effective adsorbent for removing effluents regardless of their different chemical structure (organic and inorganic). © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2024.
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页码：57874 / 57886
页数：12
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