Mesoporous Silica Modified with 2-Phenylimidazo[1,2-a] pyridine-3-carbaldehyde as an Effective Adsorbent for Cu(II) from Aqueous Solutions: A Combined Experimental and Theoretical Study

被引：8

作者：

Saddik, Rafik ^{[1
]}

Hammoudan, Imad ^{[1
]}

Tighadouini, Said ^{[1
]}

Roby, Othmane ^{[1
]}

Radi, Smaail ^{[2
]}

Al-Zaben, Maha, I ^{[3
]}

Ben Bacha, Abir ^{[4
,5
]}

Masand, Vijay H. ^{[6
]}

Almarhoon, Zainab M. ^{[3
]}

机构：

[1] Hassan II Univ, Fac Sci Ain Chock, Lab Organ Synth Extract & Valorizat, Casablanca 20000, Morocco

[2] Mohamed Premier Univ, Fac Sci, Lab Appl Chem & Environm LCAE, Oujda 60000, Morocco

[3] King Saud Univ, Coll Sci, Dept Chem, POB 2455, Riyadh 11451, Saudi Arabia

[4] King Saud Univ, Coll Sci, Biochem Dept, POB 22452, Riyadh 11495, Saudi Arabia

[5] Univ Sfax, Fac Sci Sfax, Lab Plant Biotechnol Appl Crop Improvement, Sfax 3038, Tunisia

[6] Vidya Bharati Mahavidyalaya, Dept Chem, Amravati 444602, India

来源：

MOLECULES | 2022年 / 27卷 / 16期

关键词：

heavy metals; adsorption; silica functionalization; HEAVY-METALS; CHEMICAL-MODIFICATION; WASTE-WATER; COPPER IONS; ADSORPTION; REMOVAL; DFT; GEL; PB(II); NANOCOMPOSITE;

D O I：

10.3390/molecules27165168

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

In this study, we will present an efficient and selective adsorbent for the removal of Cu(II) ions from aqueous solutions. The silica-based adsorbent is functionalized by 2-phenylimidazo[1,2-a] pyridine-3-carbaldehyde (SiN-imd-py) and the characterization was carried out by applying various techniques including FT-IR, SEM, TGA and elemental analysis. The SiN-imd-py adsorbent shows a good selectivity and high adsorption capacity towards Cu(II) and reached 100 mg/g at pH = 6 and T = 25 degrees C. This adsorption capacity is important compared to other similar adsorbents which are currently published. The adsorption mechanism, thermodynamics, reusability and the effect of different experimental conditions, such as contact time, pH and temperature, on the adsorption process, were also investigated. In addition, a theoretical study was carried out to understand the adsorption mechanism and the active sites of the adsorbent, as well as the stability of the complex formed and the nature of the bonds.

引用

页数：20

共 10 条

[1] 2-Phenylimidazo[1,2-a]pyridine-3-carbaldehyde
Anaflous, Abderrahman
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[3] Ruthenium (II) catalysed regioselective C-2'-alkenylation of 2-phenylimidazo[1,2-a]pyridine-3-carbaldehydes
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[4] Theoretical Study on Phosphorescence Efficiency and Color Tuning from Orange to Blue-Green of Ir(III) Complexes Based on Substituted 2-Phenylimidazo[1,2-a]pyridine Ligand
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[5] FeBr3-catalysed synthesis of 3-aroylimidazo[1,2-a]pyridine and 3,3′-(arylmethylene)bis(2-phenylimidazo[1,2-a]pyridines) derivatives from 2-arylimidazo[1,2-a]pyridines and aromatic aldehydes: an investigation about mechanistic insights
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[6] Experimental and computational studies on the inhibition performance of the organic compound "2-phenylimidazo [1,2-a] pyrimidine-3carbaldehyde" against the corrosion of carbon steel in 1.0 M HCl solution
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[7] A Highly Efficient Environmental-Friendly Adsorbent Based on Schiff Base for Removal of Cu(II) from Aqueous Solutions: A Combined Experimental and Theoretical Study
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[9] Synthesis of mesoporous silica-coated magnetic nanoparticles modified with 4-amino-3-hydrazino-5-mercapto-1,2,4-triazole and its application as Cu(II) adsorbent from aqueous samples
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[10] Effective inhibition of mild steel corrosion by 6-bromo-(2,4-dimethoxyphenyl)methylidene]imidazo [1,2-a]pyridine-2-carbohydrazide in 0.5 M HCl: Insights from experimental and computational study
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