http://hdl.handle.net/123456789/3349 2026-05-13T20:11:06Z 2026-05-13T20:11:06Z Fatimah, Is Rubiyanto, Dwiarso Riyanto Allwar Fitri, Noor Shabur J., Tatang Purwiandono, Gani Prakoso, Nurcahyo Iman Salmahaminati Kurniawan S., M. Arsyik Yanti, Ika Anugrahwati, Mai Hidayat, Habibi Fitriastuti, Dhina Anas, Argo Khoirul Setyawati, Amri Fajarwati, Febi Indah Wicaksono, Wiyogo Prio http://hdl.handle.net/123456789/11284 2018-10-23T02:23:37Z 2017-07-10T00:00:00Z

Refleksi Nilai-Nilai Keislaman pada Perkembangan dan Aplikasi Ilmu Kimia Fatimah, Is; Rubiyanto, Dwiarso; Riyanto; Allwar; Fitri, Noor; Shabur J., Tatang; Purwiandono, Gani; Prakoso, Nurcahyo Iman; Salmahaminati; Kurniawan S., M. Arsyik; Yanti, Ika; Anugrahwati, Mai; Hidayat, Habibi; Fitriastuti, Dhina; Anas, Argo Khoirul; Setyawati, Amri; Fajarwati, Febi Indah; Wicaksono, Wiyogo Prio Kimia adalah salah satu ilmu dasar yang memainkan peran penting dalam perkembangan ilmu pengetahuan dan teknologi. Beberapa ilmuwan muslim telah berkontribusi pada perkembangan ilmu ini dan hingga saat ini memberikan warna pada perkembangan terkini dari ilmu kimia. Dalam sejarah peradaban, kimia dikenal sebagai Alchemist pada era 600 hingga 1600 M. Pada periode ini banyak unsur yang ditemukan seperti bismuth, arsenik dll, banyak senyawa kimia yang dibuat dan eksperimental berkembang ilmu dalam periode ini. Jabir Ibnu Hayyan (721-803 M) misalnya, beliau dikenal sebagai Bapak Alkemi. Beliau menciptakan metode eksperimental untuk persiapan asam nitrat, asam klorida dan timbal.Beliau juga mengembangkan teknik ekstraksi logam dari bijih dan aplikasinya pada teknik pewarnaan. Beberapa ilmuwan muslim lain mengembangkan teknik distilasi, kimia farmasi dan lain sebagainya. Dari sejarah-sejarah tersebut banyak aspek yang sebenarnya dasar-dasar pemikirannya sangat terkait dengan motivasi keislaman. Motivasi ini yang perlu terus digali sehingga kimiawan muslim memiliki semangat berkarya demi kemaslahatan umat dengan dasar keislaman yang kuat.

2017-07-10T00:00:00Z Prakoso, N.C. Purwono, S. Rochmadi http://hdl.handle.net/123456789/2861 2017-08-10T08:54:24Z 2017-03-01T00:00:00Z

Synthesis of sodium lignosulphonate from oil palm empty fruit bunches’s lignin Prakoso, N.C.; Purwono, S.; Rochmadi Synthesis of sodium lignosulphonate have been done by using batch method. Optimation of synthesis method was achieved through this study. The study was conducted on the optimation of mass ratio of lignin to the NaHSO3 solution, the concentration of NaHSO3 solution, reaction temperature, and reaction time. Of all the treatments, it was found that the optimum mass ratio of lignin to the NaHSO3 solution, concentration of NaHSO3 solution, reaction temperature, and reaction time respectively, 0.3 M, 0.1 M 97 °C, and the reaction was carried out for 4 hours. Excellent yields and selective products were obtained (90-92%)

2017-03-01T00:00:00Z Fatimah, I. Rapei, M. http://hdl.handle.net/123456789/2826 2017-08-11T01:34:46Z 2015-01-01T00:00:00Z

The improvement of montmorillonite activity in 2-butanol dehydration by metal oxide pillarization Fatimah, I.; Rapei, M. Heterogeneous catalysis based on the utilization of natural inorganic material is widely investigated. Among other materials, clay exhibiting interesting physicochemical properties due to its surface area and acidity, but the use of clay facing to the fact that it is not thermal stable in high temperature. In this paper, the improvement on clay properties by pillarization process and study of its role in 2-butanol dehydration were presented. Research steps consist of aluminium oxide, titanium oxide and zinc oxide pillarization to activated natural montmorillonite followed by activity test of pillared material in 2- butanol dehydration. A fluidized bed reactor was used for the catalytic testing and GCMS analysis of the products was performed for the evaluation of catalytic activity, total conversion and the selectivity of the product. Several physicochemical characterization techniques of material were studied by DTATGA, XRD, BET surface area analysis and surface acidity. The role of surface acidity and also pore distribution of the catalysts towards the improvement of 2- butanol conversion into 2-butene and di-sec butyl ether is discussed in this paper

2015-01-01T00:00:00Z Fatimah, I. Rubiyanto, D. Huda, T. Handayani, S. Illahi, O.M. Yudha, S.P. http://hdl.handle.net/123456789/2825 2017-08-11T01:37:36Z 2015-01-01T00:00:00Z

Ni dispersed on sulfated zirconia pillared montmorillonite as bifunctional catalyst in eco-friendly citronellal conversion Fatimah, I.; Rubiyanto, D.; Huda, T.; Handayani, S.; Illahi, O.M.; Yudha, S.P. Preparation of nickel dispersed on sulfated zirconia pillared montmorillonite(Ni/S-Zr/MMT) and its application as catalyst in citronellal conversion was investigated. Preparation of material was conducted by three main steps; zirconia pillarization, sulfation and nickel dispersion. The synthesized material was characterized with FTIR spectroscopy, elemental analysis, x-ray diffraction and gas sorption analyzer and catalytic activity was tested for microwave assisted citronellal conversion via catalytic hydrogen transfer mechanism. The results showed that the obtained material gave high total conversion and demonstrated cyclization, isomerization and hydrogenation mechanism in one pot reaction. The presence of sulfate and nickel in the catalyst play important role within the mechanism.

2015-01-01T00:00:00Z