Facile Preparation of Phosphotungstic Acid-Impregnated Yeast Hybrid Microspheres and Their Photocatalytic Performance for Decolorization of Azo Dye

المؤلفون المشاركون

Bai, Bo
Chen, Lan

المصدر

International Journal of Photoenergy

العدد

المجلد 2013، العدد 2013 (31 ديسمبر/كانون الأول 2013)، ص ص. 1-9، 9ص.

الناشر

Hindawi Publishing Corporation

تاريخ النشر

2013-04-30

دولة النشر

مصر

عدد الصفحات

9

التخصصات الرئيسية

الكيمياء

الملخص EN

Phosphotungstic acid (HPW)-impregnated yeast hybrid microspheres were prepared by impregnation-adsorption technique through tuning pH of the aqueous yeast suspensions.

The obtained products were characterized by field emission scanning electron microscopy (FE-SEM), energy dispersive spectrometry (EDS), X-ray diffraction (XRD), thermogravimetry-differential scanning calorimetry (TG-DSC), and ultraviolet-visible spectrophotometry (UV-Vis), respectively.

FE-SEM and EDS ascertain that the HPW has been effectively introduced onto the surface of yeast, and the resulting samples retain ellipsoid shape, with the uniform size (length 4.5 ± 0.2 μm, width 3.0 ± 0.3 μm) and good monodispersion.

XRD pattern indicates that the main crystal structure of as-synthesized HPW@yeast microsphere is Keggin structure.

TG-DTA states that the HPW in composites has better thermal stability than pure HPW.

Fourier transform infrared spectroscopy (FT-IR) elucidates that the functional groups or chemical bonds inherited from the pristine yeast cell were critical to the assembling of the composites.

UV-Vis shows that the obtained samples have a good responding to UV light.

The settling ability indicates that the hybrid microspheres possess an excellent suspension performance.

In the test of catalytic activity, the HPW@yeast microsphere exhibits a high photocatalytic activity for the decoloration of Methylene blue and Congo red dye aqueous solutions, and there are a few activity losses after four cycles of uses.

نمط استشهاد جمعية علماء النفس الأمريكية (APA)

Chen, Lan& Bai, Bo. 2013. Facile Preparation of Phosphotungstic Acid-Impregnated Yeast Hybrid Microspheres and Their Photocatalytic Performance for Decolorization of Azo Dye. International Journal of Photoenergy،Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-469549

نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)

Chen, Lan& Bai, Bo. Facile Preparation of Phosphotungstic Acid-Impregnated Yeast Hybrid Microspheres and Their Photocatalytic Performance for Decolorization of Azo Dye. International Journal of Photoenergy No. 2013 (2013), pp.1-9.
https://search.emarefa.net/detail/BIM-469549

نمط استشهاد الجمعية الطبية الأمريكية (AMA)

Chen, Lan& Bai, Bo. Facile Preparation of Phosphotungstic Acid-Impregnated Yeast Hybrid Microspheres and Their Photocatalytic Performance for Decolorization of Azo Dye. International Journal of Photoenergy. 2013. Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-469549

نوع البيانات

مقالات

لغة النص

الإنجليزية

الملاحظات

Includes bibliographical references

رقم السجل

BIM-469549