Improving photocatalytic properties of Zn0.95Ni0.04Co0.01O modified by PANI

Journal of Nanoanalysis

مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 24 بهمن 1397

نوع مقاله: Original Research Paper

شناسه دیجیتال (DOI): 10.22034/jna.2019.583514.1131

نویسندگان

sara poorarjmand¹؛ Maryam Kargar Razi^{* 2}؛ Ali Reza Mahjoob³؛ Morteza khosravi¹

¹Department of Chemistry, North Tehran Branch, Islamic Azad University, Tehran, Iran

²Department of Chemistry, North Tehran Branch, Islamic Azad University, Tehran, Iran.

³Department of Chemistry, Tarbiat Modares University, Tehran, Iran.

چکیده

In this research, preparation of Zn0.95Ni0.04Co0.01O/PANI (polyaniline) (0.5%, 1% and 1.5% PANI) nano composites was performed by synthesis of pure polyaniline and adsorption of resulted organic chains on the structure of Zn0.95Ni0.04Co0.01O nano particles. The as-prepared samples was characterized by X-ray diffraction (XRD), fourier transform infrared (FTIR), field emission scanning electron microscopy (FESEM) and BET techniques. According to the X-ray diffraction analysis, pure PANI has semi crystalline structure while all of the composites showed the characteristic peaks of Zn0.95Ni0.04Co0.01O with hexagonal wurtzite structure. The FTIR spectroscopy approved the interactions of PANI chains and Zn0.95Ni0.04Co0.01O nano particles. Field emission scanning electron microscopy analysis revealed amorphous structure of PANI and the spherical shape of nano composite. The BET analysis attributed the largest specific surface area of Zn0.95Ni0.04Co0.01O/PANI (1% PANI) nano composite. The photocatalytic results showed that the dye can be effectively decolorized by Zn0.95Ni0.04Co0.01O/PANI (1% PANI) nano composite. The enhancement of photocatalytic performance is due to the decrease of specific surface area and the high separation efficiency of photo-induced electron-hole pairs.

کلیدواژه‌ها

BET Analysis؛ Nano Composite؛ Photocatalytic Activity؛ Polyaniline