Pengaruh Ethanolamina Terhadap Pembentukan Fasa, Ukuran Partikel, dan Luas Permukaan Spesifik Nanotitania Menggunakan Metode Sol Gel

Renita Maharani Fauzi, Posman Manurung, Yanti Yulianti
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Abstract

Nanotitania has been prepared by sol gel method using ethanolamine as surfactant. This research was conducted to determine the effect of ethanolamine on the phase formation, particle size and surface area of TiO2. In this study Ti-butoxide was used as a precursor and ethanol as a solvent, and then HCl. The amount of ethanolamine was varied to 0; 0.5; 1; 1.5; and 2 ml. The samples were calcined at a temperature of 500ºC for 4 hours. TiO2 was characterized using X-Ray Diffraction (XRD), Transmission Electron Microscopy (TEM), and Surface Area Analyzer (SAA) with BET method. The results of XRD characterization showed that in samples A-0.0 and A-0.5 an anatase phase was formed, whereas in the sample A-1,0 and A-1,5 an anatase, brookite, and rutile phases were formed with a weight percentage of 57,65 ± 1,6% wt; 27,06 ± 1,8% wt, and 15,29 ± 0,4% wt. Meanwhile, for sample A-1,5 it is 69,96 ± 1.6% wt, 24,52 ± 1,5% wt, and 5,52 ± 0,3% wt. Sample A-2.0 only produced anatase and brookite phases with weight percentages of 78,53 ± 1.5% wt and 21,47 ± 1.5% wt. The results of TEM characterization using ImageJ software show that the TiO2 particle size in sample A-1,0 was 15,8 ± 1,0 nm. The results of the analysis surface area of sample A-1, produced the largest specific surface area, that is 172 m2/g, the smallest specific surface area was produced in sample A-1,5 that is 72,07 m2/g.
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乙醇对相位、颗粒大小和纳米颗粒的特异性表面的影响采用了溶胶胶的方法
以乙醇胺为表面活性剂,采用溶胶-凝胶法制备了纳米二氧化钛。本研究旨在确定乙醇胺对TiO2的相形成、粒径和表面积的影响。本研究以丁二醇为前驱体,乙醇为溶剂,再以盐酸为溶剂。乙醇胺的加入量为0;0.5;1;1.5;和2 ml。样品在500℃的温度下煅烧4小时。采用BET法对TiO2进行了x射线衍射(XRD)、透射电子显微镜(TEM)和表面积分析仪(SAA)表征。XRD表征结果表明,样品a -0.0和a -0.5中形成了锐钛矿相,而样品a -1,0和a -1,5中形成了锐钛矿、板岩和金红石相,质量百分比为57.65±1.6% wt;同时,样品a - 1.5分别为69,96±1.6% wt、24,52±1.5% wt和5,52±0.3% wt。样品A-2.0只产生锐钛矿和板岩相,重量百分比分别为78,53±1.5% wt和21,47±1.5% wt。使用ImageJ软件进行TEM表征的结果表明,样品a - 1.0的TiO2粒径为15.8±1.0 nm。分析结果表明,样品A-1的比表面积最大,为172 m2/g,样品A-1的比表面积最小,为72,07 m2/g。
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