Photocatalytic performance of rod-shaped copper oxides prepared by spin coating

Micro & nano letters

article

Hassan Koohestani¹ 

[1] Faculty of Materials and Metallurgical Engineering, Semnan University

关键词: optical constants;    semiconductor growth;    semiconductor materials;    nanofabrication;    nanoparticles;    copper compounds;    catalysts;    energy gap;    photochemistry;    visible spectra;    annealing;    scanning electron microscopy;    ultraviolet spectra;    precipitation (physical chemistry);    catalysis;    X-ray diffraction;    spin coating;    narrow bandgap;    spin coating;    bandgap energy;    photocatalytic performance;    rod-shaped copper oxides;    chemophysical properties;    energy conversion;    co-precipitation method;    X-ray powder diffraction;    scanning electron microscopy;    ultraviolet–visible light absorption spectroscopy;    annealing;    methyl orange degradation;    semiconductor materials;    specific surface areas;    UV irradiation;    optical constants;    temperature 450.0 degC;    CuO;    Cu2O;   

DOI  :  10.1049/mnl.2018.5447

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

Azithromycin is the drug of choice in the treatment of several bacterial infections, most often those causing middle ear infection, bronchitis, pneumonia, typhoid and sinusitis. It’s also effective against certain urinary tract infections and venereal diseases. This study was carried out to prepare an acceptable suspension either as dry physical mixture powder or granules to be reconstituted, through studying the effect of various type and concentration of suspending agent (xanthan gum, hydroxypropyl methylcellulose (HPMC), either alone or in combination) on the release profile of the drug. The best prepared suspension formulas (H& III) were selected depending on the dissolution profile of each formulas and then compared with the reference suspensions (Zithromax and Azi-once).The viscosity, sedimentation volume, Resuspendability and expiration date were evaluated for the chosen formulas (H&III) and compared with references ZithromaxÒ and Azi-onceÒ.The result indicated that the chosen formula – H had better dissolution rate compared with references suspensions, Also it was less viscous than them.While other chosen formula – III had lower dissolution rate compared with ZithromaxÒ and higher dissolution rate than AZi – once, also it was less viscous than both references.It was found that the dry physically mixed powder (formula – H) was more stable than the granular suspension (Formula III) since the expiration date for formula H and formula III were 3.24 and 2.7 years respectively.

【 授权许可】

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