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Publisher: Diponegoro University   (Total: 21 journals)   [Sort by number of followers]

Showing 1 - 21 of 21 Journals sorted alphabetically
Bulletin of Chemical Reaction Engineering & Catalysis     Open Access   (Followers: 2, SJR: 0.192, h-index: 6)
Geoplanning : J. of Geomatics and Planning     Open Access   (Followers: 1)
ILMU KELAUTAN : Indonesian J. of Marine Sciences     Open Access   (Followers: 1)
Intl. J. of Renewable Energy Development     Open Access   (Followers: 5)
Intl. J. of Waste Resources     Open Access   (Followers: 4)
Izumi : Jurnal Bahasa, Sastra dan Budaya Jepang     Open Access  
J. of Biomedicine and Translational Research     Open Access  
J. of Coastal Development     Open Access   (Followers: 2)
J. of the Indonesian Tropical Animal Agriculture     Open Access  
Jurnal Anestesiologi Indonesia     Open Access  
Jurnal Ilmu Lingkungan     Open Access   (Followers: 1)
Jurnal Reaktor     Open Access  
Jurnal Sistem Komputer     Open Access   (Followers: 1)
Jurnal Teknologi dan Sistem Komputer     Open Access  
Jurnal Wilayah dan Lingkungan     Open Access   (Followers: 1)
Kapal     Open Access   (Followers: 1)
Nurse Media : J. of Nursing     Open Access  
Parole : J. of Linguistics and Education     Open Access  
Tataloka     Open Access  
Teknik     Open Access  
Waste Technology     Open Access   (Followers: 3)
Journal Cover Bulletin of Chemical Reaction Engineering & Catalysis
  [SJR: 0.192]   [H-I: 6]   [2 followers]  Follow
    
  This is an Open Access Journal Open Access journal
   ISSN (Print) 1978-2993
   Published by Diponegoro University Homepage  [21 journals]
  • Front-matter

    • Authors: Istadi Istadi
      Abstract:
      DOI : 10.9767/bcrec.10.3.9905.i-vii
      PubDate: 2016-12-30
      Issue No: Vol. 10 (2016)
       
  • Back-matter

    • Authors: Istadi Istadi
      Abstract:
      DOI : 10.9767/bcrec.10.3.9904.App.1-App.10
      PubDate: 2016-12-30
      Issue No: Vol. 10 (2016)
       
  • Utilization of Renewable and Waste Materials for Biodiesel Production as
           Catalyst

    • Authors: Prashant Kumar, Anil Kumar Sarma, M. K. Jha, Ajay Bansal, Bharvee Srivastava
      Abstract: The efficient and economic utilization of natural renewable and waste materials of various industries and biomass having non-homogeneous composition is a new dimension of research for biodiesel pro- duction. A combination of these renewable, waste materials and traditional heterogeneous catalyst can also be looked after for the possible solution of heterogeneous catalytic transesterification. This review discusses industrially derived and naturally occurring materials containing calcium, sodium, potassium etc, which were found instrumental for biodiesel production. About 60 research articles and patents have been reviewed and the findings are analysed in this article for developing industrial scale heterogeneous catalytic pilot plant facilities for biodiesel production. © 2015 BCREC UNDIP. All rights reserved. Received: 25th May 2015; Revised: 17th June 2015; Accepted: 10th July 2015 How to Cite: Kumar, P., Sarma, A.K., Jha, M.K., Bansal, A., Srivasatava, B. (2015). Production Utilization of Renewable and Waste Materials for Biodiesel Production as Catalyst. Bulletin of Chemical Reaction Engineering & Catalysis, 10 (3): 221-229. (doi:10.9767/bcrec.10.3.8584.221-229) Permalink/
      DOI : http://dx.doi.org/10.9767/bcrec.10.3.8584.221-229
      PubDate: 2015-12-30
      Issue No: Vol. 10 (2015)
       
  • Production of Oleic Acid Ethyl Ester Catalyzed by Crude Rice Bran (Oryza
           

    • Authors: Indro Prastowo, Chusnul Hidayat, Pudji Hastuti
      Abstract: A fed-batch system was modified for the enzymatic production of Oleic Acid Ethyl Ester (OAEE) using rice bran (Oryza sativa) lipase by retaining the substrate molar ratio (ethanol/oleic acid) at 2.05:1 during the reaction. It resulted in an increase in the ester conversion of up to 76.8% in the first 6 h of the reaction, which was then followed by a decrease from 76.8% to 22.9% in 6 h later. The production of water in the reaction system also showed a similar trend. The water was hypothesized to lead lipase to reverse the reaction which resulted in a decrease in both (water and esters) in the last 6 h of the reac- tion. In order to overcome the problem, zeolite powder (25 and 50 mg/mL) were added into the reaction system at 5 h of the reaction. As the result, the final ester conversions increased drastically up to 90 - 95.7%. Thus, the combination of a constant substrate molar ratio (ethanol/oleic acid) during the reaction (at 2.05:1) with the addition of zeolite powder (25 and 50 mg/mL) to the reaction system at 5 h is effective for the enzymatic synthesis of OAEE. © 2015 BCREC UNDIP. All rights reservedReceived: 2nd May 2015; Revised: 20th June 2015; Accepted: 2nd July 2015 How to Cite: Prastowo, I., Hidayat, C., Hastuti, P. (2015). Production of Oleic Acid Ethyl Ester Catalyzed by Crude Rice Bran (Oryza sativa) Lipase in a Modified Fed-batch System: A Problem and its Solution. Bulletin of Chemical Reaction Engineering & Catalysis, 10 (3): 230-236. (doi:10.9767/bcrec.10.3.8511.230-236) Permalink/
      DOI : http://dx.doi.org/10.9767/bcrec.10.3.8511.230-236
      PubDate: 2015-12-30
      Issue No: Vol. 10 (2015)
       
  • Modified Zeolite with Transition Metals Cu and Fe for Removal of Methylene
           Blue from Aqueous Medium: Mass Spectrometry Study

    • Authors: Joao Henrique Lopes, Francisco Guilherme Nogueira, Maraisa Gonçalves, Luiz Carlos Oliveira
      Abstract: Textile industries are one of the main sources of water pollution. Wastewater containing dyes present a serious environmental problem because of its high toxicity and possible accumulation in the environ- ment. In this work were explored the characteristics of removal of methylene blue dye employing zeo- lites modified with transition metals (Cu, Fe). The zeolites with iron or copper were prepared by using NaY and Naβ zeolites as precursors, replacing part of ion sodium for copper or iron ions through the ion exchange method. All materials were characterized by several analytical techniques, in order to gain information about the structure and catalytic activity. Modified zeolites showed a remarkable ac- tivity in H2O2 decomposition and in the discoloration an organic dye in aqueous medium. ESI-MS stud- ies of the methylene blue oxidation showed that the oxidation of the dye occurs via a Fenton type sys- tem in which *OH radicals are formed in situ and added to the ring structure of the organic substrate. In addition, modification of the zeolite with transition metal proved to be an interesting pathway to produce efficient catalysts for the oxidation of organic molecules, i.e. dyes in aqueous media. © 2015 BCREC UNDIP. All rights reserved Received: 4th June 2015; Revised: 29th July 2015; Accepted: 29th July 2015 How to Cite: Lopes, J.H., Nogueira, F.G.E, Gonçalves, M., Oliveira, L.C. (2015). Modified Zeolite with Transition Metals Cu and Fe for Removal of Methylene Blue from Aqueous Medium: Mass Spectrometry Study. Bulletin of Chemical Reaction Engineering & Catalysis, 10 (3): 237-248. (doi:10.9767/bcrec.10.3.8624.237-248) Permalink/
      DOI : http://dx.doi.org/10.9767/bcrec.10.3.8624.237-248
      PubDate: 2015-12-30
      Issue No: Vol. 10 (2015)
       
  • In-situ Polymerization of Styrene to Produce Polystyrene / Montmorillonite
           Nanocomposites

    • Authors: Lahouari Mrah, Rachid Meghabar, Mohammed Belbachir
      Abstract: A reactive cationic surfactant cetyltrimethylammonium bromide (CTAB) was synthesized for intercalation of montmorillonite Mmt, a Maghnite type of clay. The pristine montmorillonite (Mmt) was obtained from Algerian plant with a cation exchange, Organophilic Mmt, was prepared by ion exchange between Na+ ions in the clay. CTAB-intercalated Mmt particles were easily dispersed and swollen in styrene monomer, PS/Mmt-CTAB nanocomposites were synthesized via in-situ polymerization, in-situ polymerization, this method is based on the swelling of the silicate layers with the liquid polymer. The polymer composites were characterized using different techniques such as X-ray diffraction (XRD), The results were showed that, the basal space of the silicate layer increased, as determined by XRD, from 12.79 to 32.603 Å. Transmission electron microscopy (TEM) indicated that exfoliation of Mmt was achieved. In this current research, thermal gravimetric analysis (TGA) and  force atomic microscopy (AFM) were also studied. © 2015 BCREC UNDIP. All rights reservedReceived: 29th June 2015; Revised: 9th August 2015; Accepted: 15th August 2015How to Cite: Mrah, L., Megabar, R., Belbachir, M. (2015). In-situ Polymerization of Styrene to Produce Polystyrene / Montmorillonite Nanocomposites. Bulletin of Chemical Reaction Engineering & Catalysis, 10 (3): 249-255. (doi: 10.9767/bcrec.10.3.8708.249-255)Permalink/
      DOI : http://dx.doi.org/10.9767/bcrec.10.3.8708.249-255
      PubDate: 2015-12-30
      Issue No: Vol. 10 (2015)
       
  • Synthesis of 4-Methoxybiphenyl Using Pd-Containing Catalysts Based on
           Polymeric Matrix of Functionalized Hypercrosslinked Polystyrene

    • Authors: Linda Nikoshvili, Nadezhda Nemygina, Alexey Bykov, Alexander Sidorov, Valentina Matveeva, Irina Tyamina, Mikhail Sulman, Esther Sulman, Barry Stein
      Abstract: This paper describes synthesis of Pd-containing catalysts of Suzuki cross-coupling based on amino-functionalized hypercrosslinked polystyrene. The investigation of the influence of a palladium concen-tration, solvent composition, temperature, type and concentration of base, and a type of a gas phase was carried out. It was shown that the catalyst developed allows achieving conversion of 4-bromoanisole higher than 98% for less than 1 h at mild reaction conditions and in the absence of a phase transfer agent. Catalyst reduction was found to result in formation of small Pd nanoparticles (about 3 nm in diameter) and a large number of Pd clusters, which are highly active in Suzuki-Miyaura cross-coupling (conversion of 4-bromoanisole reached 90.2% for 3 h).  © 2015 BCREC UNDIP. All rights reservedReceived: 22nd July 2015; Revised: 31st August 2015; Accepted: 1st September 2015How to Cite: Nikoshvili, L., Nemygina, N., Bykov, A., Sidorov, A., Matveeva, V., Tyamina, I., Sulman, M., Sulman, E., Stein, B. (2015). Synthesis of 4-Methoxybiphenyl Using Pd-Containing Catalysts Based on Polymeric Matrix of Functionalized Hypercrosslinked Polystyrene. Bulletin of Chemical Reaction Engineering & Catalysis, 10 (3): 256-265. (doi:10.9767/bcrec.10.3.8805.256-265)Permalink/
      DOI : http://dx.doi.org/10.9767/bcrec.10.3.8805.256-265
      PubDate: 2015-12-30
      Issue No: Vol. 10 (2015)
       
  • Production of Silver Nanoparticle Chains inside Single Wall Carbon
           Nanotube with a Simple Liquid Phase Adsorption

    • Authors: Alimin Alimin, Narsito Narsito, Indriana Kartini, Sri J. Santosa
      Abstract: This article described a successful growing of silver nanoparticle chains (AgNPs) within the internal spaces of single wall carbon nanotube (SWCNT). The use of ethanol in the liquid phase adsorption could produce relatively long silver nanoparticle chains encapsulated in the nanotubes (AgNPs-SWCNT). A significant decrease of nitrogen uptake and radial breathing mode (RBM) as well as tan-gential mode (G band) upshifts of AgNPs-SWCNT specimen suggest that the nanoparticles have been encapsulated in the internal tube spaces of the nanotube. The presence of metallic silvers on the exter-nal surface of the carbon nanotube that was observed by scanning electron microscope and examined by X-ray diffraction technique was successfully able to be removed by ultrasonic using 1 M HNO3. The remaining small residue obtained after thermal gravimetric analysis up to 1100 K supports the sugges-tion on the presence of silver encapsulated inside SWCNT. © 2015 BCREC UNDIP. All rights reservedReceived: 13rd April 2015; Revised: 4th September 2015; Accepted: 9th September 2015How to Cite: Alimin, A., Narsito, N., Kartini, I., Santosa, S.J. (2015). Production of Silver Nanoparticle Chains inside Single Wall Carbon Nanotube with a Simple Liquid Phase Adsorption. Bulletin of Chemical Reaction Engineering & Catalysis, 10 (3): 266-274. (doi:10.9767/bcrec.10.3.8416.266-274)Permalink/
      DOI : http://dx.doi.org/10.9767/bcrec.10.3.8416.266-274
      PubDate: 2015-12-30
      Issue No: Vol. 10 (2015)
       
  • Reduction of Nitroarenes to Aromatic Amines with Sodium Borohydride in the
           Presence of Selenium and Actived Carbon

    • Authors: Ke Ying Cai, Ying Mei Zhou
      Abstract: A selenium and actived carbon (AC) catalyst has been applied for the selective reduction of nitroarenes to their corresponding amines respectively using sodium borohydride (NaBH4) as a reducing source un-der mild conditions. Under the optimized conditions, efficient and selective reduction of nitroarenes into the corresponding aromatic amines occurred over a recyclable selenium catalyst. The catalyst can be easily recovered after catalytic reaction and readily reused for 4 cycles with consistent activity hence reduces the cost of the catalyst. © 2015 BCREC UNDIP. All rights reserved.Received: 3rd May 2015; Revised: 5th October 2015; Accepted: 5th October 2015How to Cite: Cai, K.Y., Zhou, Y.M. (2015). Reduction of Nitroarenes to Aromatic Amines with Sodium Borohydride in the Presence of Selenium and Actived Carbon. Bulletin of Chemical Reaction Engineering & Catalysis, 10 (3): 275-280. (doi:10.9767/bcrec.10.3.8512.275-280)Permalink/
      DOI : http://dx.doi.org/10.9767/bcrec.10.3.8512.275-280
      PubDate: 2015-12-30
      Issue No: Vol. 10 (2015)
       
  • Total Oxidation of CO Using Cu & Co Catalyst: Kinetic Study and
           Calcinations Effect

    • Authors: Gaurav Rattan, Rajwant Kaur
      Abstract: The present study deals with the oxidation of CO using base metal catalysts. A series of copper cobalt with different mole ratios were prepared by wet-impregnation method calcined at 400 oC for 3 h for the oxidation of CO. The mole ratios were varied from 1:1 to 1:5 by varying the weight of nitrates accord-ingly. It was found that 1:3 and 1:4 are active catalyst among the other prepared catalysts. Further, the two catalysts (1:3 & 1:4) were prepared by co-precipitation and citric sol-gel methods in order to see the effect of preparation method. The results showed that the catalyst prepared by co-precipitation method is good in terms of activity for CO oxidation. The best selected catalyst was characterized by TGA/DSC and XRD. Kinetic study was also performed on the selected catalyst. © 2015 BCREC UNDIP. All rights reserved.Received: 30th July 2015; Revised: 7th October 2015; Accepted: 8th October 2015How to Cite: Rattan, G., Kaur, R. (2015). Total Oxidation of CO Using Cu & Co Catalyst: Kinetic Study and Calcinations Effect. Bulletin of Chemical Reaction Engineering & Catalysis, 10 (3): 281-293. (doi:10.9767/bcrec.10.3.8875.281-293)Permalink/
      DOI : http://dx.doi.org/10.9767/bcrec.10.3.8875.281-293
      PubDate: 2015-12-30
      Issue No: Vol. 10 (2015)
       
  • The Optical Properties and Photo catalytic Activity of ZnS-TiO2/Graphite
           Under Ultra Violet and Visible Light Radiation

    • Authors: Fitria Rahmawati, Rini Wulandari, Irvinna Mutiara Murni, Mudjijono Mudjijono
      Abstract: This paper discuss research about the optical properties and photo catalytic activity of TiO2 film on graphite substrate and its modification with ZnS. The optical properties investigated are the light response at various light wavelength and the gap energy (Eg). Meanwhile, the photocatalytic activity was studied from isopropanol degradation to determine the Quantum Yield, QY and kinetics of reaction. The results show that the TiO2 layer is consisted of rutile and anatase phases. Meanwhile, the ZnS peaks are at 2θ of 27.91o and 54.58o. The gap energy of TiO2/G consist of two band gap representing the band gap of rutile and anatase. The ZnS deposition shifted the band gap into single gap of 3.40 eV which is in between the gap energy of single TiO2 and single ZnS. The isopropanol degradation with TiO2/G photocatalyst under visible light radiation did not produce any new peaks representing product. Meanwhile, the photocatalytic process under 380 nm light produce new peaks representing the electronic transition of acetone. The isopropanol degradation with ZnS-TiO2/Graphite produced new peaks that indicates the photocataytic activity of ZnS-TiO2/Graphite whether under UV or visible light radiation. The siginificant role of ZnS also proven by the increase of QY values and the increase of rate constant, k. © 2015 BCREC UNDIP. All rights reservedReceived: 31st May 2015; Revised: 6th August 2015; Accepted: 17th Octoberber 2015How to Cite: Rahmawati, F., Wulandari, R., Murni, I.M., Moedjijono, M. (2015). The Optical Properties and Photo catalytic Activity of ZnS-TiO2/Graphite Under Ultra Violet and Visible Light Radiation. Bulletin of Chemical Reaction Engineering & Catalysis, 10 (3): 294-303. (doi:10.9767/bcrec.10.3.8598.294-303)Permalink/
      DOI : http://dx.doi.org/10.9767/bcrec.10.3.8598.294-303
      PubDate: 2015-12-30
      Issue No: Vol. 10 (2015)
       
  • Non-Catalytic and γ-Al2O3 Catalyst-based Degradation of Glycerol by
           Sonication Method

    • Authors: Ruslan Kalla, S. Sumarno, M. Mahfud
      Abstract: This research aims to study the effect of the addition of the catalyst γ-Al2O3 on the degradation of glyc-erol with using sonication method. This degradation reaction performed with the aid of a catalyst γ-Al2O3 or without a catalyst. Reactants were prepared from glycerol-water mixture with a mass ratio of 1:8. Experiment was carried out in a batch reactor at atmospheric pressure, temperature range be-tween 30-70 °C for 10-90 min. The products, which were degraded from glycerol, were analyzed by gas chromatography (GC). The results showed that the ultrasonic wave radiation could degrade glycerol. The glycerol conversion was 2.92%-59.95% without employing catalyst, while the conversion of glycerol increased with adding γ-Al2O3.catalyst. It was found that methanol, allyl alcohol and acrolein were deg-radation products. © 2015 BCREC UNDIP. All rights reserved.Received: 1st June 2015; Revised: 10th September 2015; Accepted: 17th October 2015How to Cite: Kalla, R., Sumarno, S., Mahfud, M. (2015). Non-Catalytic and γ-Al2O3 Catalyst-based Degradation of Glycerol by Sonication Method. Bulletin of Chemical Reaction Engineering & Catalysis, 10 (3): 304-312. (doi:10.9767/bcrec.10.3.8608.304-312)Permalink/
      DOI : http://dx.doi.org/10.9767/bcrec.10.3.8608.304-312
      PubDate: 2015-12-30
      Issue No: Vol. 10 (2015)
       
  • Influence of the Mesoporous Polymer Matrix Nature on the Formation of
           Catalytically Active Ruthenium Nanoparticles

    • Authors: Mikhail Sulman, Valentin Doluda, Maksim Grigoryev, Oleg Manaenkov, Anastasiya Filatova, Vladimir Molchanov, Alexander Sidorov, Alexey Bykov, Irina Shkileva, Aleksandrina Sulman, Barry Stein, Valentuna Matveeva
      Abstract: This paper reports on ruthenium nanoparticles formation and stabilization by hypercrosslinked poly-styrene and the catalytic properties of the nanocomposites obtained. Hypercrosslinked polystyrene with functional groups and without them was used. The nanocomposites were characterized using low-temperature nitrogen physisorption, X-ray photoelectron spectroscopy and transmission electron mi-croscopy. It is established that the tertiary amine group of the support influences both formation of ru-thenium nanoparticles, and their catalytic properties in the selective hydrogenation of D-glucose. ©2015 BCREC UNDIP. All rights reserved.Received: 27th July 2015; Revised: 4th December 2015; Accepted: 5th December 2015How to Cite: Sulman, M., Doluda, V., Grigoryev, M., Manaenkov, O., Filatova, A., Molchanov, V., Si-dorov, A., Bykov, A., Shkileva, I., Sulman, A., Stein, B., Matveeva, V. (2015). Influence of the Mesoporous Polymer Matrix Nature on the Formation of Catalytically Active Ruthenium Nanoparticles. Bulletin of Chemical Reaction Engineering & Catalysis, 10 (3): 313-323. (doi:10.9767/bcrec.10.3.8824.313-323)Permalink/
      DOI : http://dx.doi.org/10.9767/bcrec.10.3.8824.313-323
      PubDate: 2015-12-30
      Issue No: Vol. 10 (2015)
       
  • Experimental Investigation of the Biomass Catalytic Pyrolysis Process to
           Produce the Combustible Gases with the High Calorific Value

    • Authors: Yury Kosivtsov, Esther Sulman, Yury Lugovoy, Anna Kosivtsova, Antonina Stepacheva
      Abstract: The study is devoted to the low-temperature catalytic pyrolysis of biomass. The pyrolysis of peat was conducted using natural aluminosilicates and synthetic zeolites. It was found that the pore size of the mineral strongly affects the catalytic activity and provides the processing of the hydrocarbons forma-tion reactions. Bentonite clay was found to be the most effective catalyst for the biomass pyrolysis proc-ess. The use of bentonite clay as an addition to peat allows improving structural (strength, porosity) and sorption characteristics (sorption rate) of the molded compositions and can serve as a catalyst dur-ing its subsequent thermal conversion. The amount of gases obtained using natural aluminosilicate as a catalyst increased by 2 times compared to the non-catalytic process. The calorific value of the prod-ucts obtained was higher due to the light hydrocarbons formation. © 2015 BCREC UNDIP. All rights reserved.Received: 29th July 2015; Revised: 2nd December 2015; Accepted: 30th December 2015How to Cite: Kosivtsov, Y., Sulman, E., Lugovoy, Y., Kosivtsova, A., Stepacheva, A. (2015). Experi-mental Investigation of the Biomass Catalytic Pyrolysis Process to Produce the Combustible Gases with the High Calorific Value. Bulletin of Chemical Reaction Engineering & Catalysis, 10 (3): 324-331. (doi:10.9767/bcrec.10.3.8869.324-331)Permalink/
      DOI : http://dx.doi.org/10.9767/bcrec.10.3.8869.324-331
      PubDate: 2015-12-30
      Issue No: Vol. 10 (2015)
       
  • Preface, BCREC Vol. 10 No. 3 Year 2015

    • Authors: Istadi Istadi
      Abstract:
      DOI : 10.9767/bcrec.10.3.9908.iv-vi
      PubDate: 2015-12-30
      Issue No: Vol. 10 (2015)
       
 
 
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