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IMPROVEMENT OF THE PRODUCT AND QUALITY OF POGOSTEMON CABLIN BENTH Allwar, Allwar; fatimah, is; fitri, noor; rubiyanto, dwiarso
EKSAKTA: Journal of Sciences and Data Analysis VOLUME 14, ISSUE 1, February 2014
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

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Abstract

Pogostemon cablin benth is an economic source of farmer communities which are presence in several provinces in Indonesia. In general, the production and quality of the Pogostemon cablin benth produced by the farmers are still low or under the standard ISO. The chelating method, the influence of pH and adsorption method with activated carbon and montmorilonite  were carried out to improve the production and quality of Pogostemon cablin benth. The results show that the production and the quality tends to be better proved by the color changes to yellow bright, reduced metal contents and an increase in Pogostemon cablin benth
SITRONELAL CYCLE-HYDROGENATION TANDEM CREATED ZRO MONTMORILLONIT WITH VARIATION METHOD REACTION Fatimah, Is; Yudha, Septian Perwira; Rubiyanto, Dwiarso; Huda, Thorikul
Jurnal Penelitian Saintek Vol 18, No 2: Oktober 2013
Publisher : Institute of Research and Community Services, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jps.v18i2.2135

Abstract

Tandem cyclization reaction towards menthol-citronellal hydrogenation reactions through one-step reaction with a variety of methods using pillared montmorillonite catalyst ZrO2 (Zr-MMT) have been done. The research aimed to determine the effectiveness of Zr-MMT catalyst in the reaction process with two different methods; first method comprises reacting flow system to citronellal - catalyst mixture after reflux with pressure and flow H2  of  3 kPa, and the other method consists of a flow system to the citronellal -catalyst  mixture at the  temperature of 200o C with H2  flow pressure of 2 kPa. Reaction products were analyzed using GC-MS to determine the total conversion and product yield of menthol. The results showed that the different methods give different reaction mechanisms significantly. The first method gives almost to 99% conversion of citronellal with major products of   isomenthone and isopulegol while the second method give the conversion of 5.18%  with 0.39% selectivity to menthol products. Compared with natural montmorillonite, both processes showed higher conversion in which the conversion of citronellal over montmorillonite give the concersion less than 5%. The adequacy of H2 flow rate as a reactant is an important factor affection the mechanism is discussed in this paper.  
SYNTHESIS OF METAL AND METAL OXIDE NANOPARTICLES USING PLANT EXTRACT: A REVIEW Fatimah, Is
EKSAKTA: Journal of Sciences and Data Analysis VOLUME 17, ISSUE 1, February 2017
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/eksakta.vol17.iss1.art7

Abstract

Nanotechnology is an emerging technology and it is related to various applications. Related to nanotechnology development, the use of green chemistry concept, low cost technology and sustainability is a must. Synthesis of nanoparticles using plant extract is a developing technique within the scheme. In this paper, study on metal/metal oxide synthesis and its aspects is presented for describing the potency of natural resources for nanoparticle synthesis within green chemistry approach.
THE EFFECT OF CAO WEIGHT FROM SNAIL SHELL (PILLA AMPULLACEA) ON ITS ACTIVITY AS HETEROGENEOUS CATALYST ON BIODIESEL CONVERSION OF BRAN OIL Fatmawati, Hikmah; Puspitasari, Wellyana; Pujiarti, Rohini; Ardyanti, Sesy; Fatimah, Is
EKSAKTA: Journal of Sciences and Data Analysis VOLUME 18, ISSUE 1, February 2018
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/eksakta.vol18.iss1.art7

Abstract

Research on utilization of snail (Pilla ampullacea) shell as CaO source for biodiesel conversion from rice bran oil has been investigated. CaO was derived by calcining the shell at pada 900oC for 2 h. The powder obtained from the process was characterized using x-ray diffraction (XRD),  energy dispersive x-ray (EDX), Fourier-Transform Infra-red (FTIR) and surface basicity test. In order to test the activity of catalyst, effect of catalyst weight on the yield of conversion as studied. Results show that the derived material is composed from dominantly CaO and the material demonstrates activity in rice bran conversion into biodiesel. Compared to  NaOH, the CaO catalyst exhibits more effectively active as shown by the higher yield. From varied catalyst weight, it is obtained that at the range of 2.5-10% catalyst weight does not affect significantly to the increasing yield. 
PREPARATION OF TIO2¬ BAMBOO LEAVES ASH COMPOSITE AS PHOTOCATALYST FOR DYE PHOTODEGRADATION Prihatiningsih, Prihatiningsih; Pertiwi, Lita Dewi; Fatimah, Is
INDONESIAN JOURNAL OF CHEMICAL RESEARCH VOLUME 2, ISSUE 1-2, 2017
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijcr.vol2.iss1.art1

Abstract

Textile waste containing dye can generate environmental problems especially for human. Therefore some techniques are developed to overcome the impact of toxic contaminant from dyes residue, one of these is the photocatalysis technique. The photocatalysis mechanism TiO2 is a popular photocatalyst and in order to improve its activity the composite formation with a some solid support are attempted. The development of TiO2 composite with a sustainable support source; bamboo leaves was conducted. The composite was prepared by dispersing titanium isopropoxide into bamboo leaves ash (BLA) followed by calcination process. Hysicochemical characterization of the photocatalyst was performed by using XRD, gas sorption analyzer and SEM-EDX analysis. By the characterization it is found that BLA contains silica in highest percentage and furthermore TiO2 in the mixed anatase and rutile phases were formed the composite.
PREPARASI FE(III)-MONTMORILLONIT SEBAGAI KATALIS PADA FOTOOKSIDASI METILEN BIRU Yunani, Yuyun; Fatimah, Is; Riyanto, Riyanto
INDONESIAN JOURNAL OF CHEMICAL RESEARCH VOLUME 1, ISSUE 1, 2014
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijcr.vol1.iss1.art11

Abstract

Preparasi Fe(III)-montmorilloit dan aplikasinya pada fotodegradasi metilen biru dengan sinar UV telah dilakukan. Preparasi Fe(III)-montmorillonit dilakukan dengan tahapan pembuatan larutan agen pemilar, interkalasi, dan kalsinasi. Karakterisasi material dilakukan menggunakan XRD, dan SAA melalui persamaan BET. Degradasi metilen biru dilakukan menggunakan beberapa metode yaitu adsorpsi, fotokatalis, fotolisis, fotooksidasi dan oksidasi. Hasil karakterisasi menggunakan XRD menunjukkan Fe(III)-montmorillonit mempunyai basal spacing 12,23 �, luas permukaan spesifik 110,513 m2g-1, volume total pori 158,8x10-3 cm3g-1 dan rerata jejari pori 28,74075 �. Hasil degradasi metien biru dianalisis dengan menggunakan Spektrofotometer UV-Vis. Metode degradasi yang paling optimal adalah uji fotooksidasi pada pH 10, selama 180 menit, penyinaran di bawah sinar UVB (λ .. nm) dengan menggunakan 0,1 g Fe(III)-montmorillonit untuk setiap 500 mL MB 10-4 M dan peroksida (H2O2 50%) sebanyak 0,025 mL dapat menurunkan kadar metilen biru sebesar 92,564 %.
ANALYSIS OF PHOSPHORUS AND POTASSIUM LEVELS IN ORGANIC FERTILIZER IN THE INTEGRATED LABORATORY OF JOMBANG DISTRICT AGRICULTURE OFFICE Zakiyah, Zahrah Nur; Rahmawati, Cicik; Fatimah, Is
INDONESIAN JOURNAL OF CHEMICAL RESEARCH VOLUME 3, ISSUE 2, 2018
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijcr.vol3.iss2.art1

Abstract

Quantitative analysis in the integrated laboratory of Jombang District Agriculture Office has been done on two samples of organic fertilizer with phosphorus and potassium parameters, considering these two elements are macronutrients which have an important role in the growth and development of plants. Determination of phosphorus level has been done by ascorbic acid method using double beam UV-Visible spectrophotometer, while determination of potassium level has been done by flame photometric method. There are 2 samples code of organic fertilizer, 13/F/16 and 14/F/16. From the result of analysis, the phosphorus level as P2O5 in 13/F/16 sample is 0.275%, while in the 14/F/16 sample is 0.29%. The potassium level as K2O in 13/F/16 sample is 2.58%, while in the 14/F/16 sample is 2.67%. These results meet the requirements for compost quality standards based on SNI 19-7030-2004, because they exceed the minimum requirements, which are 0.10% for phosphorus level and 0.20% for potassium level.
MODIFIKASI ZEOLIT DENGAN TEMBAGA (CU) DAN UJI SIFAT KATALITIKNYA PADA REAKSI ESTERIFIKASI Arjek, Orien Claudia Handayani; Fatimah, Is
INDONESIAN JOURNAL OF CHEMICAL RESEARCH VOLUME 2, ISSUE 1-2, 2017
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijcr.vol2.iss1.art3

Abstract

Zeolite modification with Cu has been conducted. Material modification is done by impregnating Cu through a zeolite powder reflux process with CuSO4.5H2O solution so that theoretical Cu concentration is 5% followed by oxidation and reduction of solids. Material characterization was performed by x-ray diffraction analysis (XRD), Fourier Transform Infra-Red (FTIR) and acidity testing of Cu/Zeolite catalyst.The results showed that the crystallinity level of Cu/Zeolite did not change significantly when compared with natural zeolite. Changes occur at the intensity of the resulting peak, as at the peak of 2θ 27.826 º which is the mordenite phase in Cu-zeolite has a peak intensity of 1360, while at zeolite with peak of 2θ 27,760 º with the same phase meliki the smaller intensity of 1048. Testing the acidity of the catalyst was carried out by adsorbing pyridine into the catalyst, then calculating the adsorbed pyridine level, in the zeolite samples of pyridine adsorbed by 0.003 g / g while in the Cu-zeolite sample of 1.0574 g / g. The result of analysis with FTIR to show acidity level is seen in the range of wave number between 1450-1495 cm-1, from zeolite catalyst with wave number 1491,17 cm-1 peak intensity (% T) equal to 6,53, while at Cu-zeolite with wave number 1468.05 cm-1 peak intensity (% T) of 10.99. Testing of catalytic properties of Cu-zeolite catalyst on esterification reaction was done by taking acetic acid with concentration of 0.05 mol and methanol with concentration of 0.1 mol, then added 0.2 gram of catalyst, then reflux process for 1 hour. The results of reflux in the form of methyl esters were then analyzed by gas chromatography to see the retention time and the area of the resulting area. The use of Cu-zeolite catalysts yielding ester is indicated by the appearance of the ester peak.
METAL OXIDE AND METAL COMPLEX IMMOBILIZATION MODIFIED SMECTITE CLAY FOR GREEN CATALYSIS AND PHOTO-CATALYSIS APPLICATIONS: A MINI REVIEW Fatimah, Is
INDONESIAN JOURNAL OF CHEMICAL RESEARCH VOLUME 2, ISSUE 1-2, 2017
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijcr.vol2.iss1.art7

Abstract

Clay minerals are promising modifiable material for catalysis application. Fit to green chemistry issue, green catalysis based on clay minerals modification has been designed in our research group. Metal oxide and metal complexes modification onto natural and synthetic smectite clay via pillarization and intercalation processes and its application as green catalyst have been investigated.  This paper presents the study on preparation of Ni, Zr and Pt  insertion on smectite clay structure for green conversion of citronellal to menthol via catalytic hydrogen transfer mechanism and Ru-complex modified smectite clay as novel photocatalysis application.  Effect of clay structure modification was also studied in order to investigate the  relationship between physicochemical characteristic change of material modifications and its catalytic/photo-catalytic activity. Some interesting phenomena related to the interaction of metal-clay support for their performance toward reaction kinetics and mechanism are reviewed, with emphasis on the evolution of surface properties and some factors affecting catalytic/photo-catalytic activity
SYNTHESIS ZRO2-MONTMORILLONITE AND APPLICATION AS CATALYST IN CATALYTIC CRACKING OF HEAVY FRACTION OF CRUDE OIL Fatimah, Is; Wijaya, Karna; Setyawan, Khoirul Himmi
Bulletin of Chemical Reaction Engineering & Catalysis 2008: BCREC Volume 3 Issues 1-3 Year 2008
Publisher : Department of Chemical Engineering - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (207.267 KB) | DOI: 10.9767/bcrec.3.1-3.7118.9-13

Abstract

Research on synthesis and characterization of ZrO2-Montmorillonit and its application as catalyst in heavy fraction of crude oil (HFCO) conversion has been investigated. Synthesis of catalyst was done by pillarization of ZrO2 into silicate interlayer of montmorillonite structure. The success in synthesis is shown by XRD and BET surface area measurement in that basal spacing d001 was increase after pillarization. Activity test of material was showed that ZrO2 dispersion affected catalytic activity in liquid production and the activity was increased asn increasing temperature in the range of 473K-673K. Composition of liquid product indicated that ZrO2-Montmorillonit tend to produce kerosene related to metal oxide distribution in synthesis. © 2008 BCREC UNDIP. All rights reserved.[Received: 3 June 2008, Accepted: 15 July 2008][How to Cite: I. Fatimah, K. Wijaya, K. H. Setyawan. (2008). Synthesis ZrO2-Montmorillonite and Application as Catalyst in Catalytic Cracking of Heavy Fraction of Crude Oil. Bulletin of Chemical Reaction Engineering and Catalysis, 3(1-3): 9-13.  doi:10.9767/bcrec.3.1-3.7118.9-13][How to Link/DOI: http://dx.doi.org/10.9767/bcrec.3.1-3.7118.9-13 || or local: http://ejournal.undip.ac.id/index.php/bcrec/article/view/7118 ]