Novel microwave assisted synthesis of ZnS nanomaterials

Damian W. Synnott, Michael K. Seery, Steven J. Hinder, John Colreavy, Suresh C. Pillai*

*المؤلف المقابل لهذا العمل

نتاج البحث: المساهمة في مجلةمراجعة النظراء

32 اقتباسات (Scopus)

ملخص

A novel ambient pressure microwave assisted technique is developed in which silver and indium-modified ZnS is synthesized. The as-prepared ZnS is characterized by x-ray diffraction, UV-vis spectroscopy, x-ray photoelectron spectroscopy and luminescence spectroscopy. This procedure produced crystalline materials with particle sizes below 10 nm. The synthesis technique leads to defects in the crystal which induce mid-energy levels in the band gap and lead to indoor light photocatalytic activity. Increasing the amount of silver causes a phase transition from cubic blende to hexagonal phase ZnS. In a comparative study, when the ZnS cubic blende is heated in a conventional chamber furnace, it is completely converted to ZnO at 600 °C. Both cubic blende and hexagonal ZnS show excellent photocatalytic activity under irradiation from a 60 W light bulb. These ZnS samples also show significantly higher photocatalytic activity than the commercially available TiO2 (Evonik-Degussa P-25).

اللغة الأصليةEnglish
رقم المقال045704
دوريةNanotechnology
مستوى الصوت24
رقم الإصدار4
المعرِّفات الرقمية للأشياء
حالة النشرPublished - فبراير 1 2013
منشور خارجيًانعم

ASJC Scopus subject areas

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