Stability studies of CdS sensitized TiO2 nanotubes prepared using the SILAR method

Vijila Kalarivalappil, Steven J. Hinder, Suresh C. Pillai, V. Kumar, Baiju Kizhakkekilikoodayil Vijayan*

*المؤلف المقابل لهذا العمل

نتاج البحث: المساهمة في مجلةArticleمراجعة النظراء

14 اقتباسات (Scopus)

ملخص

Titania nanotubes sensitized with CdS nanoparticles of different sizes and amounts were prepared using the successive ionic layer (SILAR) deposition method. UV/visible spectra indicate a red shift in CdS absorption upon increasing the number of SILAR cycles this is due to an increase in amount and size of CdS particles on the surface of titania nanotube. The stability of CdS particle sensitized on the surface of titania nanotubes were monitored using X-ray photoelectron spectroscopy (XPS). The formation of CdSO4 species on the surface of CdS particles was evident from the XPS analysis. Smaller CdS particles, formed using a lower number of SILAR cycles, are more prone to oxidation than the larger particles formed using a greater number of SILAR cycles. The photocatalytic activity and solar cell efficiency is found to be dependent on the number of SILAR cycles employed.

اللغة الأصليةEnglish
الصفحات (من إلى)1404-1413
عدد الصفحات10
دوريةJournal of Environmental Chemical Engineering
مستوى الصوت6
رقم الإصدار1
المعرِّفات الرقمية للأشياء
حالة النشرPublished - فبراير 1 2018

ASJC Scopus subject areas

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