X-RAY Diffraction and Fourier Transform Infrared Study of Ca-Mg-Al Hydrotalcite from Artificial Brine Water with Synthesis Hydrothermal Treatments

International Conference on Advanced Materials for Better Future 2017

Heriyanto^1 ; Heraldy, E.^2,3 ; Nugrahaningtyas, K.D.^2,3

Department of Chemistry, Master Program Graduate School, Sebelas Maret University, Jl. Ir. A. Sutami 36A, Kentingan, Surakarta

57126, Indonesia^1

Department of Chemistry, Faculty of Mathematics and Natural Sciences, Sebelas Maret University, Jl. Ir. A. Sutami 36A, Kentingan, Surakarta

57126, Indonesia^2

Solid State Chemistry and Catalysis Research Group, Sebelas Maret University, Jl. Ir. A. Sutami 36A, Kentingan, Surakarta

57126, Indonesia^3

关键词: Brine water;    Fourier transform infrared studies;    Hydrotalcites;    Hydrothermal treatments;    Infrared spectrum;    Mg-Al hydrotalcite;    Preparation method;    Reliability Index;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/333/1/012006/pdf
DOI  :  10.1088/1757-899X/333/1/012006

来源: IOP

【 摘 要 】

Synthesis of various hydrothermal treatments for synthesis Ca-Mg-Al hydrotalcite from artificial brine water had been performed. The hydrothermal treatment has four variations with a temperature at 180 °C into Teflon lined stainless steel for 18 hours. The XRD result of the synthesis materials after various hydrothermal treatments has hydrotalcite phase and CaCO3. Therefore a preparation method might not discover a mixture of Ca and Al cations uniformly, and then a number of Ca cation agglomerated and enabled evidence that the radius of Ca2+was larger than Mg2+. Le Bail refinement of the value of reliability index parameter especially X2values has concern limitation value of reliability index. Lattice parameter a and c have a value of around 22 and 3 Å, respectively. Ca-Mg-Al hydrotalcite possesses crystallite size lower than Mg-Al hydrotalcite commercial. Infrared spectra has found hydroxyl band at region 3474.91 and 3072.74 cm-1, carbonate band at region 1365.66; 1491.04; 857.40; and 685.72 cm-1, and metal band at region 447.50; 553.59; 772.52 cm-1; and 975.06 cm-1.