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All Journal Jurnal Penelitian Saintek EKSAKTA: Journal of Sciences and Data Analysis Jurnal Sains Dasar Science and Technology Indonesia Indonesian Journal of Chemistry Jurnal Pengabdian Masyarakat MIPA dan Pendidikan MIPA Molekul: Jurnal Ilmiah Kimia Jumat Pendidikan: Jurnal Pengabdian Masyarakat Indonesian Journal of Chemistry and Environment Jurnal Elemen Kimia Jurnal Riset Pembelajaran Kimia
Cahyorini Kusumawardani
Universitas Negeri Yogyakarta
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Environmental Science Materials Science & Nanotechnology Physics Social Sciences Other

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Journal : Jurnal Penelitian Saintek

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EFFECT OF RATIO VARIATION Mg / AL IN SYNTHESIS OF HYDROTALSIT WITH HYDROTHERMAL COPRECIPITATION METHOD Sri Handayani; Cahyorini Kusumawardani; Kun Sri Budiasih
Jurnal Penelitian Saintek Vol 19, No 1: April 2014
Publisher : Institute of Research and Community Services, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1654.376 KB) | DOI: 10.21831/jps.v19i1.2333

Abstract

Catalyst are divided into two kinds, homogeneous and heterogeneous catalysts. The catalys tthat constantly developed isa heterogeneous catalyst because could  be separated easily and reuseable. The purpose of this research were synthesis and characterization of hydrotalcite Mg/Al as a heterogeneous catalyst which can be use din the aldol condensation reaction. Synthesis hydrotalcite was conducted by hydrothermal coprecipitation method. Synthesis performed with variations mol Mg/Alat a temperature hydrothermal 1000C for 15 hours. Hydrotalcite as a heterogeneouscatalyst preparation was done by calcinationat 4000C. Characterization of synthesized hydrotalcyte was performed by FTIR to identified functional group and XRD analysis to characteriz edits structure. The results showed that the optimum conditions for the synthesized hydrotalcite was obtained atmole ratio Mg/Al3:1.   
INFLUENCE OF CALCULATION TEMPERATURE TO HIDROTALSIT Mg / Al WHICH IS DISINTESTED THROUGH UNSECUAL METHOD OF PRESIPITATION Hasan Adidarma; Sri Handayani; Cahyorini Kusumawardani; Kun Sri Budiasih
Jurnal Penelitian Saintek Vol 19, No 2: Oktober 2014
Publisher : Institute of Research and Community Services, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (482.687 KB) | DOI: 10.21831/jps.v19i2.3502

Abstract

This research aims to determine the effect of calcination temperature variation from 200°C to 500°C on the Mg/Al hydrotalcite structure. Mg/Al hydrotalcite has been synthesized via a low supersarturated precipitation method with hydrothermal treatment, using Mg(NO3 )2 .6H2 O and Al(NO3 )3 .9H2 O as the raw materials, and base solution of NaOH and Na2 CO3 as the precipitators. Mg/Al hydrotalcite compound synthesized before and after calcination were characterized using fourier transform infrared (FTIR) and X-ray diffractometer (XRD). The results of FTIR and XRD data analysis showed that the calcination of hydrotalcite of Mg/Al at 200o C did not changed the structure of hydrotalcite compounds, calcination at temperatures 300-400o C showed that structure of hydrotalcite compound starts to change form a mixture of magnesium oxide and aluminum, and calcination at 500°C showed that the crystal structure of Mg/Al hydrotalcite has broken to form a mixture of metal oxides, namely MgO (phericlase) with a little mixture of aluminum oxide in the form of θ-Al2O3 and γ-Al2O3.
Co-Authors A.K Prodjosantoso A.K Prodjosantoso Ari Safitri Bintang Tanjung Sari Christanty Wahyu Septyaningrum Cindy Candrika Anugrahayu Crys Fajar Partana Crys Fajar Partana Denny Hadya Khoirulfatihin Diandari Siti Nur Ichsani Dina Dina Dina Dina, Dina Dwi Anggi Marini Dyah Purwaningsih, Sugi Rahayu Pujianto Erna Warisman Hari Sutrisno Harno Dwi Pranowo Harno Dwi Pranowo Hasan Adidarma Isti Yunita Jaslin Ikhsan Jati, Andreas Ary Chrisna Khoiriyah Lukman, Laila Kristanti Eka Wulandari Kristian Handoyo Sugiyarto Kristiyan Handoyo Sugiyarto Kun Sri Budiasih Misbah Rijal Ulhaq Mudasir Mudasir Mudasir Mudasir Noviyan Darmawan Nur Azizah Sri . Handayani Sri Handayani Sukisman Purtadi Vatrika Anggriana Putri Yunita, Isti Yusuf Bramastya Apriliyanto Yuzzaini Dwi Kurniawati