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All Journal Cakrawala Pendidikan JOURNAL OF EDUCATION Jurnal Penelitian Saintek INOTEKS : Jurnal Inovasi Ilmu Pengetahuan, Teknologi, dan Seni EKSAKTA: Journal of Sciences and Data Analysis Jurnal Ilmu Lingkungan Jurnal Sains Dasar Jurnal Pengabdian Masyarakat MIPA dan Pendidikan MIPA Jumat Pendidikan: Jurnal Pengabdian Masyarakat Indonesian Journal of Chemistry and Environment Jurnal Elemen Kimia al Kimiya : Jurnal Ilmu Kimia dan Terapan
Kun Sri Budiasih
Universitas Negeri Yogayakarta
Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Environmental Science Materials Science & Nanotechnology Social Sciences Other

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Journal : EKSAKTA: Journal of Sciences and Data Analysis

 1 
Penentuan Efisiensi Immobilisasi Kromium (VI) Pada Geopolimer Abu Sekam Padi Dengan Uji TCLP (Toxicity Characteristic Leaching Procedure) Kun Sri Budiasih
EKSAKTA: Journal of Sciences and Data Analysis VOLUME 12, ISSUE 1, February 2011
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

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Abstract

This research aimed  to determine  the efficiency of immobilization of Cr(VI) on  the rice husk  ash  based  geopolymer with  a TCLP  (Toxicity Characteristic  Leaching Procedure)  study. The TCLP was    refer  to  the  standard method  from  Japan  Environmental  Agency. There were three  variables  used  i.e.,    concentration  of Cr(VI)  impregnated,  particles  size,  and  the  kind  of leaching  water. Determination  of  immobilization  efficiency  was  done  by  calculate  the concentration  of  Cr(VI)  in  the  leachate  water  after    the  leaching  processes.    Quantitative measurement of the chromium was done by Uv-Vis spectrometer with biphenyl carbazid  reagent. Immobilization of Cr(VI) on the rice husk ash based  geopolymer was establish until 25 ppm Cr impregnated. The efficiency of the immobilization can reach 90% - almost 100% depend on the variable of leaching processes.   Keywords: eficiency, immobilization, geopolimer, rice husk ash, TCLP study
Synthesis of Mg/Al Hydrotalcite by Using Low Supersaturated Precipitation Method with Variation of Mole Ratio Christanty Wahyu Septyaningrum; Sri Handayani; Cahyorini Kusumawardani; Kun Sri Budiasih
EKSAKTA: Journal of Sciences and Data Analysis VOLUME 14, ISSUE 2, August 2014
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/eksakta.vol14.iss2.art1

Abstract

This research aims to synthesize Mg/Al hydrotalcite with mole ratio variations of Mg/Al precursor through low supersaturated precipitation method. Mg/Al hydrotalcite was synthesized with Mg/Al mole ratio variation of 1:1, 2:1, 3:1, and 4:1. Mg/Al hydrotalcite was synthesized using NaOH and Na2CO3 base solutions. The mixture of precursor was stirred for 2 hours then treated by hydrothermal at 100 °C for 4 hours. Results of the synthesis Mg/Al hydrotalcite with mole ratio variations is a white powder. The formation of the structure of Mg/Al hydrotalcite showed by certain peaks in the FTIR spectra and XRD diffractogram.The results of data analysisshowed that variation of mole ratio Mg/Alcauses a shift of peak in the XRD diffractogram shifted towards the left along with a comparative increase in mole ratio Mg/Al, but the main functional groups on the compound Mg/Al hydrotalcite increasingly formed with better.
Co-Authors A.K Prodjosantoso A.K Prodjosantoso Abdullah Nashih Amin Afikah, Adilah Ajeng Septiana Putri Anna Rakhmawati Arum Restu Widyasti Astuti Lestari Azlan Kamari Baso Samsu Rijal Bernadetta Octavia Cahyorini Kusumawardani Christanty Wahyu Septyaningrum Christyan, T. David Meilana Nur Arifin Dina Dina Dina Dina, Dina Dyah Purwaningsih, Sugi Rahayu Pujianto Eli Rohaeti Endang Widjajanti Laksono FX Fakhrizal Naufal Goni, Nur Abdul Hari Sutrisno Hasan Adidarma Isana Supiah Yosephine Louise Isti Yunita Ixora Sartika Mercuriani Jaslin Ikhsan Joronavalona, Rasamimanana K.H. Sugiyarto, K.H. Khoirul Amri Kolonial Prodjosantosa, Anti M. Pranjoto Utomo Marfuatun, Marfuatun Nur Fitriyana Nurfina Aznam Pratama, Faiz Ilham Rahmawati, Vera Dwi Nur Retno Arianingrum Rizka Apriani Putri SAPUTRI, FEBRI Sita Aninda Sari Sri . Handayani Sri Atun Sri Handayani Sri Handayani Suhartini Suhartini Sukisman Purtadi Suwardi Suwardi Tien Aminatun Tisia Miftakhul Triani Triani, Tisia Miftakhul Vera Dwi Nur Rahmawati Wika Rinawati Yunita, Isti