Synthesis of novel Pd nanoparticle on Fe3O4@ZrO2/5-amino-1,3,4-thiadiazole-2-thiol and its application for reduction Organic Dyes

سال انتشار: 1397
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 220

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شناسه ملی سند علمی:

IRANCC20_193

تاریخ نمایه سازی: 28 اردیبهشت 1398

چکیده مقاله:

Among these heterogeneous catalysts, magnetic nanoparticles (MNPs) have attracted much attention due to their unusual magnetic, physical, surface chemical and catalytic properties [1]. Because of interesting structural features and high levels of catalytic activity associated with these materials, their applications have extended to almost all possible fields of science ranging from medicine to rocketry and organic synthesis [2,3]. However, the specific surface area and thermal stability of pure ZrO2 is low and it shows weak catalytic activity in a number of chemical transformations. To increase the catalytic performance of zirconia-based catalysts, several procedures have been used by introducing various metals oxides, where upon zirconia acts as a support for the preparation of the solid catalysts. In this article, A novel Nano catalyst was synthesized by covalent immobilization of 5-amino-1,3,4-thiadiazole-2-thiol on the Fe3O4/ZrO2 core shell surface. In the following palladium ions grafted to hydrophilic organic fragment of modified fe3O4@ZrO2 and reduced to Pd nanoparticles by NaBH4 as a reduce reagent. The synthesized Pd nanoparticles can be employed as a magnetically recycled catalyst for the reduction of 4-nitrophenol, methylene blue and methyl orange in the presence of NaBH4 as a reducing reagent. The synthesized catalyst exhibited high catalytic activity. Moreover, synthesized catalyst could be readily recycled and reused several times without significant loss of activity.

نویسندگان

Mahnoosh rashidi

Department of Chemistry, Faculty of Science, Shahid Bahonar University of Kerman, Kerman, Iran

Mohammad Reza Islami

Department of Chemistry, Faculty of Science, Shahid Bahonar University of Kerman, Kerman, Iran