Copper aluminate spinel by soft chemical routes

被引：45

作者：

Mindru, Ioana ^{[1
]}

Gingasu, Dana ^{[1
]}

Patron, Luminita ^{[1
]}

Marinescu, Gabriela ^{[1
]}

Calderon-Moreno, Jose Maria ^{[1
]}

Preda, Silviu ^{[1
]}

Oprea, Ovidiu ^{[2
]}

Nita, Sultana ^{[3
]}

机构：

[1] Romanian Acad, Ilie Murgulescu Inst Phys Chem, Bucharest 060021, Romania

[2] Univ Politehn Bucuresti, Fac Chem, Bucharest, Romania

[3] Natl Inst Chem Pharmaceut Res & Dev, Bucharest 031299, Romania

来源：

CERAMICS INTERNATIONAL | 2016年 / 42卷 / 01期

关键词：

A. Powders chemical preparation; B; Spectroscopy; D; Spinels; Scanning electron microscopy; CUAL2O4; NANOPARTICLES; SOL-GEL; CU; NI; CO;

D O I：

10.1016/j.ceramint.2015.08.058

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Copper aluminate spinel (CuAl2O4) was obtained by two different chemical routes: the precursor method and the solution combustion method involving glycine-nitrates. The polynuclear complex compounds: (NH4)(2)[CuAl2(C4O6H4)(3)(OH)(4)]center dot 2H(2)O (I), (NH4)[CuAl2(C6O7H11)(3)(OH)(6)]center dot 2H(2)O (II) and [CuAl2(NH2CH2COOH)(4.5)]center dot(NO3)(8)center dot 4H(2)O (III) were characterized by elemental chemical analysis, infrared spectroscopy (IR), ultraviolet-visible spectroscopy (UV-vis) and thermal analysis. The final oxide powders were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), JR. Raman spectroscopy (RS), UV-vis and photoluminescence (PL) spectroscopy. X-ray diffraction patterns indicated the formation of the cubic phase CuAl2O4 with good crystallinity. The crystallite size ranged from 18.70 to 19.50 nm. Electron microscopy revealed the morphology corresponding to the complete crystallization into CuAl2O4. The band gap values ranged between 1.97 and 2.03 eV. The photocatalytic degradation of methyl orange (MO) was investigated using copper aluminate as catalyst. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：154 / 164

页数：11

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