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All Journal Jurnal Sains dan Seni ITS Akta Kimia Indonesia
Ummi Nazhiroh
Institut Teknologi Sepuluh Nopember
Arts Humanities Chemistry

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Pengaruh Doping Zn pada MgF1,985(OH)0,015 terhadap Difraktogram Mg1 xZnxF1,985(OH)0,015 Ummi Nazhiroh; Irmina Kris Murwani
Jurnal Sains dan Seni ITS Vol 6, No 2 (2017)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat (LPPM), ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23373520.v6i2.27998

Abstract

Pada penelitian ini dilakukan sintesis padatan Mg1‑xZnxF1,985(OH)0,015 dengan variasi doping  sebesar x=0; 0,025; 0,05; 0,075; 0,1 dan 0,15 mol. Sintesis padatan dilakukan dengan  metode sol-gel. Struktur padatan dikarakterisasi dengan difraksi sinar-X. Difraktogram hasil sintesis menunjukkan bahwa padatan Mg1‑xZnxF1,985(OH)0,015 memiliki struktur kristal yang sama dengan MgF2 standar yang merupakan tetragonal. Difraktogram katalis Mg1‑xZnxF1,985(OH)0,015 menunjukkan adanya pengaruh doping Zn terhadap MgF1,985(OH)0,015 yang ditandai dengan bergesernya 2θ pada puncak yang sama dengan padatan MgF1,985(OH)0,015. Ditemukan doping Zn berpengaruh dari 2q puncak padatan Mg1‑xZnxF1,985(OH)0,015. Semakin banyak Zn yang didoping, 2q semakin bergeser ke nilai yang lebih besar.
The Correlation Between Crystal Phase and Acidity in Nickel Doped Zinc Fluoride Solid Ummi Nazhiroh; Irmina Kris Murwani
Akta Kimia Indonesia Vol 7, No 1 (2022)
Publisher : LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25493736.v7i1.12491

Abstract

Nickel-doped zinc fluoride (Zn1‑xNixF2) with x= 0; 0.025; 0.050; 0.075; 0.100 and 0.150 were synthesized from zinc acetate as precursors. Solid materials were prepared by the fluorolytic sol gel method. The resulting solid materials were characterized by XRD and FTIR. The XRD characterization of the samples showed that there were characteristic peaks of zinc fluoride, zinc oxide and zinc hydrogen fluoride. The IR characterization spectrum showed the presence of Zn-F, Zn-O and -OH bonds in the samples. Pyridine adsorbed FTIR technique explains that the material has Lewis and Brønsted acidity. The acidity site in the solid were influenced by the Zn-O and Ni-O bonds in the catalyst. 
Co-Authors Kris Murwani, Irmina