Functional Ag-EDTA-modified MnO 2 nanocoral reef for rapid removal of hazardous copper from wastewater.

التفاصيل البيبلوغرافية
العنوان:	Functional Ag-EDTA-modified MnO 2 nanocoral reef for rapid removal of hazardous copper from wastewater.
المؤلفون:	Ali OI; Chemistry Department, Faculty of Science, Helwan University, Cairo, 11795, Egypt. omniaali@science.helwan.edu.eg., Azzam AB; Chemistry Department, Faculty of Science, Helwan University, Cairo, 11795, Egypt.
المصدر:	Environmental science and pollution research international [Environ Sci Pollut Res Int] 2023 Dec; Vol. 30 (59), pp. 123751-123769. Date of Electronic Publication: 2023 Nov 22.
نوع المنشور:	Journal Article
اللغة:	English
بيانات الدورية:	Publisher: Springer Country of Publication: Germany NLM ID: 9441769 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1614-7499 (Electronic) Linking ISSN: 09441344 NLM ISO Abbreviation: Environ Sci Pollut Res Int Subsets: MEDLINE
أسماء مطبوعة:	Publication: <2013->: Berlin : Springer Original Publication: Landsberg, Germany : Ecomed
مواضيع طبية MeSH:	Metal Nanoparticles* , Water Pollutants, Chemical*/analysis, Copper/chemistry ; Oxides/chemistry ; Edetic Acid/chemistry ; Wastewater ; Manganese Compounds/chemistry ; Silver/analysis ; Chelating Agents ; Spectroscopy, Fourier Transform Infrared ; Adsorption ; Kinetics ; Hydrogen-Ion Concentration
مستخلص:	A novel MnO 2 @EDTA-Ag nanocoral reef was constructed via a simplified redox reaction followed by EDTA and Ag nanoparticles impregnation to capture hazardous copper (II) from wastewater. A comprehensive characterization of the synthesized materials was conducted. The morphology of MnO 2 @EDTA-Ag in the form of a nanocoral reef was constructed of two-dimensional nanoplatelets and nanorod-like nanostructures. The optimal adsorption conditions proposed by the Plackett-Burman design (PBD) that would provide a removal % of 99.95 were pH 5.5, a contact time of 32.0 min, a Cu(II) concentration of 11.2 mg L ^-1 , an adsorbent dose of 0.05 g, and a temperature of 40.3 °C. The loading of Ag nanoparticles onto MnO 2 @EDTA improved the adsorption capability of MnO 2 @EDTA-Ag. Additionally, the recyclability of MnO 2 @EDTA-Ag nanocoral reef was maintained at 80% after three adsorption-desorption cycles, and there was no significant change in the XRD analysis before and after the recycling process, implying its stability. It was found that nanocoral reef-assisted EDTA formed a chelation/complexation reaction between COO ^- groups and C-N bonds of EDTA with Cu(II) ions. In addition, X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared spectroscopy (FTIR) analysis proved the synergistic effect of the electrostatic interaction and chelation/complexation was responsible for the removal mechanism of Cu(II). Also, the results demonstrated no significant variation in MnO 2 @EDTA-Ag removal efficiency for all the tested real water samples, revealing its efficacy in wastewater treatment. Therefore, the current study suggests that MnO 2 @EDTA-Ag has substantial potential to be used as a feasible adsorbent for probable hazardous metals remediation. (© 2023. The Author(s).)
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فهرسة مساهمة:	Keywords: Ag nanoparticles; Copper removal; EDTA-impregnation; MnO2 nanostructures; Plackett–Burman design
المشرفين على المادة:	789U1901C5 (Copper) 0 (Oxides) 9G34HU7RV0 (Edetic Acid) 0 (Wastewater) 0 (Manganese Compounds) 3M4G523W1G (Silver) 0 (Chelating Agents) 0 (Water Pollutants, Chemical)
تواريخ الأحداث:	Date Created: 20231122 Date Completed: 20231225 Latest Revision: 20231225
رمز التحديث:	20231225
مُعرف محوري في PubMed:	PMC10746771
DOI:	10.1007/s11356-023-30805-0
PMID:	37991610
قاعدة البيانات:	MEDLINE

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تدمد:	1614-7499
DOI:	10.1007/s11356-023-30805-0