玻璃表面Ni掺杂tio2薄膜光催化剂的合成

Margareta Caroline Harunrasjid, A. B. Aritonang, M. A. Wibowo, P. Ardiningsih, Adhitiyawarman Adhitiyawarman
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引用次数: 0

摘要

以四异丙醇钛(TTIP)和Ni(NO3)2.6H2O为原料,采用溶胶-凝胶-浸包法制备了TiO2改性Ni2+阳离子(Ni掺杂TiO2)薄膜,并在500℃下煅烧1h。本研究旨在确定Ni2+的浓度和用于自清洁的最佳层数。前沿红外(FTIR)分光光度分析发现,Ti-O的振动吸收峰向更小的波数偏移,表明Ni2+阳离子在形成Ni-TiO2的过程中与tio2基体结合。通过x射线衍射(XRD)可知,Ni-TiO2具有锐钛矿晶相,晶粒尺寸为149.20 nm。漫反射紫外-可见(DRSUV-Vis)分光光度法显示,带隙能量从3.2 eV下降到2.22 eV。扫描电镜(SEM)分析表明,聚乙二醇(PEG)的加入使薄膜的颗粒分布比未加入聚乙二醇的薄膜更为均匀。在可见光照射下,通过测量油滴与水滴的接触角来测试Ni-TiO2的自清洁活性及其表面亲水性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Synthesis of Ni doped-TiO2 Thin Film Photocatalysts on Glass Surfaces
Thin film of TiO2 modified Ni2+ cationic (Ni doped-TiO2) thin films were synthesized from titanium tetraisopropoxide (TTIP) and Ni(NO3)2.6H2O using the combined sol-gel and dip coating method followed by calcination at 500oC for an hour. This study aims to determine the concentration of Ni2+ and the optimum number of layers for application as self-cleaning. Frontier transform infrared (FTIR) spectrophotometric analysis observed a shift in the vibration absorption peak of Ti-O towards a smaller wave number as an indication that the Ni2+ cationic have incorporated in the TiO2matrix in forming Ni-TiO2. Based on the of x-ray diffraction (XRD) it is known that Ni-TiO2 has anatase crystalline phase with a crystallite size of 149.20 nm. Diffuse reflectance ultraviolet-visible (DRSUV-Vis) spectrophotometry showed a decrease in the bandgap energy (3.2 eV to 2.22 eV). Surface morphological by scanning electron microscopy (SEM) method showed that the addition of polyethylene glycol (PEG) resulted in a more homogeneous distribution of particles than thin films without PEG. The self-cleaning activity of Ni-TiO2 was tested for surface hydrophilic properties by measuring the contact angle of water and oil droplets under visible light illumination.
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