Synthesis of ZnO mesoporous powders and their application in dye photodegradation

Synthesis and characterization of ZnO and ZnO:Ga films and their application in dye-sensitized solar cells.

Highly crystalline ZnO and Ga-modified zinc oxide (ZnO:Ga) nanoparticles containing 1, 3 and 5 atom% of Ga3+ were prepared by precipitation method at low temperature. The films were characterized by XRD, BET, XPS and SEM. No evidence of zinc gallate formation (ZnGa2O4), even in the samples containing 5 atom% of gallium, was detected by XRD. XPS data revealed that Ga is present into the ZnO matr...

Synthesis of ZnO Aggregates and Their Application in Dye-sensitized Solar Cells

extraction and characterization of allium irancum plant extract and its application in the green synthesis of silver nano particles and oxidation of thiocarbony1 compounds

سنتز سبز نانوذرات فلزی (nps) درسالهای اخیر توجه بسیارزیادی را به خود جلب کرده است. زیرا این پروتوکل کم هزینه وسازگار با محیط زیست از روش های استاندارد سنتز. در این پایان نامه ما گزارش میکنیم یک روش ساده و سازگار با محیط زیست برای سنتز نانوذرات نقره با استفاده از محلول آبی عصاره گیاه allium iranicum به عنوان یک عامل کاهش دهنده ی طبیعی. نانو ذرات نقره مشخص شد با استفاده از تکنیک های uv-visible، x...

Cost-effective large-scale synthesis of ZnO photocatalyst with excellent performance for dye photodegradation.

Zinc oxide with excellent photocatalytic performance for the photodegradation of dyes (superior to Degussa P25 TiO(2)) could be easily prepared in large quantity by direct calcination of zinc acetate (Zn(Ac)(2)·2H(2)O).

Synthesis of Flower-like Ag-ZnO Nanostructure and its Application in the Photodegradation of Methyl Orange

Materiais nanoestruturados do tipo Ag-ZnO foram sintetizados primeiro preparando um ZnO com morfologia de flor por um método de precipitação e então depositando partículas de Ag diretamente sobre sua superfície, utilizando um método simples de fotorredução. As estruturas foram caracterizadas por microscopia eletrônica de varredura (SEM) e de transmissão (TEM), difratometria de raios X (XRD) e e...