Synthesis, characterization, magnetic properties, and lead sensing based on a new alluaudite-like phosphate Na2Mn2Cr(PO4)3

被引：8

作者：

Benhsina, Elhassan ^{[1
]}

Hermouche, Lina ^{[2
]}

Assani, Abderrazzak ^{[1
]}

Saadi, Mohamed ^{[1
]}

Labjar, Najoua ^{[3
]}

El Hajjaji, Souad ^{[2
]}

Lahmar, Abdelilah ^{[4
]}

El Ammari, Lahcen ^{[1
]}

机构：

[1] Mohammed V Univ, Ctr Mat Sci, Fac Sci, Lab Chim Appl Mat LCAM, Rabat, Morocco

[2] Mohammed V Univ, Fac Sci, Lab Mol Spect Modeling Mat Nanomat Water & Enviro, Rabat, Morocco

[3] Higher Normal Sch Tech Educ, Lab Nat Resources Environm & Sustainable Dev, Rabat, Morocco

[4] Univ Picardie Jules Verne, Lab Phys Condensed Matter, Sci Pole, 33 Rue St Leu, F-80039 Amiens 1, France

来源：

JOURNAL OF MATERIALS SCIENCE | 2021年 / 56卷 / 03期

关键词：

HEAVY-METAL IONS; CARBON-PASTE ELECTRODE; VOLTAMMETRIC DETERMINATION; ELECTROCHEMICAL SENSOR; CADMIUM; PERFORMANCE; TOXICITY; PLANTS; WATER; CD;

D O I：

10.1007/s10853-020-05371-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

New phosphate based on manganese, chromium, and sodium, with alluaudite-like structure, namely Na2Mn2Cr(PO4)(3), was synthesized by solid-state reaction and characterized by X-ray diffraction, infrared spectroscopy, and scanning electron microscopy. The magnetic properties were evaluated as well. The Rietveld method was applied to refine the structure of the obtained compound. The prepared powder was used as a modifier of carbon paste electrode to investigate the sensing of lead ions in aqueous solution by means of square wave voltammetry. The impact of electrochemical and chemical parameters on the current intensity was optimized. Under optimized conditions, the prepared electrode had a detection limit of 0.25 mu M. Due to its good detection performance, the proposed sensor was applied to determine lead ions in real wastewater matrices.

引用

页码：2163 / 2175

页数：13

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