Synthesis, structural and optical properties of Eskolaite nanoparticles derived from Cr doped polyanthranilic acid (CrPANA)

被引：23

作者：

Hosny, Nasser Mohammed ^{[1
]}

Zoromba, Mohamed Shafick ^{[1
,2
]}

Samir, Ghada ^{[1
]}

Alghool, Samir ^{[1
,3
]}

机构：

[1] Port Said Univ, Fac Sci, Dept Chem, 23 December St, Port Said, Egypt

[2] King Abdulaziz Univ, Dept Chem & Mat Engn, Rabigh, Saudi Arabia

[3] Taif Univ, Fac Sci, Dept Chem, At Taif 5700, Saudi Arabia

来源：

JOURNAL OF MOLECULAR STRUCTURE | 2016年 / 1122卷

关键词：

Spectral characterization; Nanoparticles; Optical properties; TRANSITION-METAL-COMPLEXES; CHROMIUM-OXIDE COATINGS; ALPHA-FE2O3; NANOPARTICLES; ELECTRONIC-STRUCTURE; HYDROTHERMAL METHOD; PRECURSOR; ZNS; 2-ACETYLPYRIDINE; POLYMER; FILMS;

D O I：

10.1016/j.molstruc.2016.05.071

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Cr doped polyanthranilic acid (Cr PANA) has been used as a molecular precursor of Cr2O3 nanoparticles. Potassium dichromate acted as an oxidant and a dopant in Cr PANA synthesis. The spectral, optical and thermal properties of the precursor have been described. Thermogravimetric Analysis (TGA) and differential scanning calorimetric (DSC) were used to clarify the thermal stability of Cr PANA. The optical band gap (E-g) measurements indicated that Cr PANA has wider optical band than the pure PANA. Calcination of Cr PANA at 600 degrees C produced Eskolaite (Cr2O3) nanoparticles. The obtained nanoparticles have been characterized by XRD and TEM. The average size of the nanoparticles was found to be 70 nm. The measured optical band gap of Eskolaite nanoparticles is 0.35 eV wider than the bulk. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：117 / 122

页数：6

共 41 条

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