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All Journal Jurnal ILMU DASAR Alchemy : Journal of Chemistry Bulletin of Chemical Reaction Engineering & Catalysis Indonesian Journal of Chemistry Momentum : Jurnal Sosial dan Keagamaan Jurnal Munaqasyah

Hendro Juwono

Institute of Technology Sepuluh Nopember

Author-ID : 294151

Religion Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Energy Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Physics Social Sciences

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Articles

SYNTHESIS AND CHARACTERIZATION OF HDPE PLASTIC FILM FOR HERBICIDE CONTAINER USING FLY ASH CLASS F AS FILLER Atmaja, Lukman; Juwono, Hendro; Niâ€™mah, Yatim Lailun
Indonesian Journal of Chemistry Vol 9, No 3 (2009)
Publisher : Universitas Gadjah Mada

High Density Polyethylene (HDPE) plastic plays an important role in various applications, for example, it can be used as a container (bottle). Petrokimia Kayaku Company, a branch of Petrokimia Company of Gresik, produces herbicides using HDPE plastic bottles as their container. Those plastic bottles undergo degradation (kempot) for certain period of time. The aim of this research is to characterize and to synthesize the HDPE plastic film with class F fly ash as filler. The results expected from this research are producing the plastic with a better properties and durability. This research was initiated by taking the sample of HDPE plastic bottle and herbicides (containing Gramakuat, on active material parakuat dichloride) at Petrokimia Kayaku Company. Both the initial HDPE and the degraded bottles was analyzed their tensile strength and Fourier Transform-Infra Red (FTIR) spectral. The next step was to synthesize the HDPE plastic film using class F fly ash as filler and a coupling agent. The filler concentrations were 0%, 5%, 10%, 15%, and 20wt %. The best result was 5% filler concentration with tensile strength of 27.7 lbs. This HDPE film was then subjected to degradation test using pyridine solution with various concentrations (1%, 3% and 5%) for two weeks, thermal degradation at 100 Â°C for two weeks and chemical resistance by xylene with soak time variation of 24 h, 98 h and 168 h. The result of degradations test show that the value of tensile strength was decreased with the increase of filler consentration. The chemical resistance, however, was increased.

Islam Politik: Kewajiban dan Tanggung Jawab Umat Juwono, Hendro
Momentum : Jurnal Sosial dan Keagamaan Vol 7 No 1 (2018): Momentum Jurnal Ilmu Sosial dan Keagamaan
Publisher : Sekolah Tinggi Islam Blambangan Banyuwangi

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Abstract: The awareness that encourages Muslims to return to the bosom of Muslims, among others, is to carry out politics, namely taking care of Muslim affairs by re-applying Islamic law in domestic and foreign affairs. Awareness born of his belief in Islam as the only complete religion and ideology. It is this awareness that gives birth to belief in Islam, that Islam is the only ideology that must be carried out by all humans so that their lives are kept away from the sadness that befalls and the beliefs that drive them to continue fighting for Islam so that Islam is applied. Therefore, this belief and awareness are the basis of political activity, so that political activity is a manifestation of mind and heart activity. Activities that cannot be killed by any force. But doing Islamization in various dimensions of life, especially regarding how the obligations and responsibilities of the people.

Catalytic Conversion From Plastic Waste by Silica-Alumina-Ceramic Catalyst to Produce an Alternative Fuel Hydrocarbon Fraction Juwono, Hendro; Tri Sujadmiko, M. Arif; Fauziah, Laily; Ayyun, Ismi Qurrota
Jurnal ILMU DASAR Vol 20 No 2 (2019)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Liquid fuels from polypropylene plastic waste have been successfully performed by catalytic cracking method. The catalyst used is Al-MCM-41- Ceramics. The catalyst was characterized by XRD, SEM, Pyridine-FTIR, N2-Adsorption-Desorption, and the product of catalytic cracking were investigated by gas chromatography-mass spectroscopy (GC-MS). The catalyst was using three times at sample notify A,B and C. The results showed liquid fuels have the largest percentage of gasoline (C8-C12) are 92.76; 91.92 and 90.58 percent fraction produced. The performance of catalyst showed that reuseability number were decrease, but the charactersitic of liquid fuel produced were also be agreeable to commercial gasoline standard. Keywords: olypropylene waste plastics, liquid fuels, catalytic conversion, Al-MCM-41-Cer catalyst, reuseability number.

THE INFLUENCE OF Pd IMPREGNATION INTO Al-MCM-41 ON THE CHARACTERS AND ACTIVITY FOR BIOGASOLINE PRODUCTION BY CATALYTIC HYDROCRACKING OF FAMEs FROM NYAMPLUNG SEED OIL (Calophyllum Inophyllum) Juwono, Hendro; Triyono, Triyono; Sutarno, Sutarno; Wahyuni, Endang Tri
Indonesian Journal of Chemistry Vol 13, No 2 (2013)
Publisher : Universitas Gadjah Mada

Biogasoline have been synthesized through catalytic hydrocracking reaction against FAMEs compounds (fatty acid methyl esters) obtained from the transesterification of Nyamplung seed oil. The performance of Al-MCM-41 and Pd/Al-MCM-41 as the catalytic hydrocracking was compared. In this research, the influence of Pd impregnation into Al-MCM-41 catalyst on the characters and catalytic activity has been evaluated. The characters determined were crystallinity by using X-Ray Diffractometer (XRD), Si/Al ratio by Inductively Coupled Plasma (ICP), the acidity by pyridine adsorption, the surface area and pore volume by surface area analyzer and the morphology by Scanning Electron Microscopy (SEM). Catalytic activity was examined for hydrocracking of free fatty acid methyl esters (FAMEs) produced from the transesterification of Nyamplung seed oil, by Hydrogen flowing. The research result showed that impregnation of Pd into Al-MCM-41 has been successfully carried out, which did not destroy the structural morphology of the catalyst. It was also discovered that the Pd impregnation could increase Si/Al ratio and the acidity but it leads to decrease in the catalyst surface area and the volume. Furthermore, Pd impregnated Al-MCM-41 showed superior activity compared to Al-MCM-41 for FAMEs hydrocracking. The superiority was indicated by higher effectiveness and yields selectiveness, that were 100% hydrocarbon composed of C9-C18 that was dominated by C12 emerging the gasoline fraction, compared of that by the results used Al-MCM-41 catalyst that were 97% hydrocarbon consisted of C8-C20 with equal abundance.

Production of Biodiesel from Seed Oil of Nyamplung (Calophyllum inophyllum) by Al-MCM-41 and Its Performance in Diesel Engine Juwono, Hendro; Triyono, Triyono; Sutarno, Sutarno; Wahyuni, Endang Tri; Ulfin, Ita; Kurniawan, Fredy
Indonesian Journal of Chemistry Vol 17, No 2 (2017)
Publisher : Universitas Gadjah Mada

Production of biodiesel from crude nyamplung oil (Calophyllum inophyllum) have been done by transesterification using Al-MCM-41 catalyst. Al-MCM-41 catalyst was obtained from impregnation of MCM-41 by Al. Sodium aluminate was added to MCM-41 until pH 11.5. The mixture was heated until 110 Â°C for 5 days. The calcination was performed at 500 Â°C, and then cooled at room temperature. The Al-MCM-41 obtained was characterized using SAXRD. Morphology of the surface was analyzed using SEM. The metals content were measured using XPS. Performance of Al-MCM-41 to adsorp and desorp nitrogen was also monitored by GSA using BET model. Acidity of the Al-MCM-41 was analyzed by FTIR using absorption of pyridine. The catalytic activity was measured using gas chromatography-mass spectrometry (GC-MS). The chromatogram shows that conversion Nyamplung seed oil to biodiesel is 98.15%. The performance of biodiesel obtained was analyzed by use it to diesel engine. The biodiesel obtained was mixed with commercial diesel fuel in various volume ratios (i.e. 0, 10, 20, 30 and 100%) before used. Viscosity, flash point, boiling point, cloud point, and pour point of the mixtures were characterized. These measuring properties increase with the increase of biodiesel concentration. Optimum engine power was achieved by 10% biodiesel. The mixture of 10% biodiesel has similar characteristic to commercial diesel fuel at load until 1800 watt.

Membumikan Nilai-nilai Nasionalis-Pancasilais dalam Keluarga sebagai Implementasi Membangun Moderasi Bangsa Juwono, Hendro
Momentum : Jurnal Sosial dan Keagamaan Vol 7 No 2 Mei (2019): Momentum Jurnal Sosial dan Keagamaan
Publisher : Sekolah Tinggi Islam Blambangan Banyuwangi

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Abstract: In the family there are sub-sections starting from father, mother, and child. Togetherness of children with parents before children continue their studies in the context of self-development is enough to determine the attitudes, views, and behavior in the future, because the position of the two parents to children is the first madrasa. Value is an ability that is believed to exist in an object that causes someone and group interest. Whereas according to Dayakisni value is a broad tendency to prefer or choose certain conditions compared to others. So grounding nationalist values is a form of planting values of lovers of the country and the nation, so that with this love someone will automatically search for all information about something he loves in order to protect and defend anyone who tries to disrupt and even undermine the integrity of his nation .  

Production of Hydrocarbon (C7-C20) from Hydrocracking of Fatty Acid Methyl Esters on Pd/Al-MCM-41 Catalyst Juwono, Hendro; Triyono, Triyono; Sutarno, Sutarno; Wahyuni, Endang Tri; Harmami, Harmami; Ulfin, Ita; Kurniawan, Fredy
Bulletin of Chemical Reaction Engineering & Catalysis 2017: BCREC Volume 12 Issue 3 Year 2017 (December 2017)
Publisher : Department of Chemical Engineering - Diponegoro University

The production of hydrocarbon (C7-C20) and alcohol (C11-C19)Â from fatty acid methyl esters (FAMEs) compound are produced from the transesterification of the seed oil of the Nyamplung that has been conducted by the catalytic hydrocracking using Al-MCM-41 and Pd2+-impregnated-Al-MCM-41 catalysts. The performance of catalysts were compared by various analysis including the acidity that was determined by pyridine and FTIR, the crystal structure observed by XRD, the surface area and pore volume analyzed by BET/BJH, the surface morphology observed by TEM, the metal on the surface of catalyst observed by XPS and the product of the hydrocracking analyzed by GC-MS. Hexagonal structure of the MCM-41(100) was shown in the 2Î¸ = 3o-5o of the diffractogram. The presence of impregnated Al and Pd observed at the 2Î¸ = 20o and 34o, respectively. The Pd/Al-MCM-41 catalyst was more acidic than Al-MCM-41 catalyst. The surface area and pore volume of the catalyst decreased after the impregnation process. The tendency of catalytic hydrocracking of hydrocarbon produced was indicated that more amount of Palladium have more hydrocarbons aliphatic than alcohol.Â

Membumikan Nilai-nilai Nasionalis-Pancasilais dalam Keluarga sebagai Implementasi Membangun Moderasi Bangsa Juwono, Hendro
MOMENTUM : Jurnal Sosial dan Keagamaan Vol 8 No 2 (2019): October 2019
Publisher : Sekolah Tinggi Islam Blambangan Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29062/mmt.v8i2.51

Abstract: In the family there are sub-sections starting from father, mother, and child. Togetherness of children with parents before children continue their studies in the context of self-development is enough to determine the attitudes, views, and behavior in the future, because the position of the two parents to children is the first madrasa. Value is an ability that is believed to exist in an object that causes someone and group interest. Whereas according to Dayakisni value is a broad tendency to prefer or choose certain conditions compared to others. So grounding nationalist values ??is a form of planting values ??of lovers of the country and the nation, so that with this love someone will automatically search for all information about something he loves in order to protect and defend anyone who tries to disrupt and even undermine the integrity of his nation .  

Urgensi Penyuluhan Berbasis Wawasan Kebangsaan Terhadap Remaja Masjid Juwono, Hendro
MUNAQASYAH : Jurnal Ilmu Pendidikan dan Pembelajaran Vol 2 No 1 November (2019): Ilmu Pendidikan dan Pembelajaran
Publisher : LP2M Sekolah Tinggi Islam Blambangan Banyuwangi

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Absract in adolescence is needed coaching to solve and overcome problems faced. A person's personality must be fostered through special education to fit the values ??in society and culture, especially the youth community. Teenagers also have many life problems, from personal problems, family, friends, and even other social problems. One of the urgent coaching in the era of globalization for adolescents is to conduct counseling based on national insight as a form of deradicalization. National-based counseling aims to increase and strengthen understanding of how to become good citizens. The research method in this article uses a qualitative approach to the type of literature. Qualitative research is expected to be able to facilitate and bridge.

Influence of Biodiesel Waste Cooking Oil on Produce Hydrocarbon Fraction by Catalytic Cracking Waste Polystyrene and its Application in Gasoline Engine Juwono, Hendro; Elliyanti, Ardita; Pamungkas, Firman Satria; Assari, Anas; Dermawan, Ahmad Hawky; Nurfitriyah, Arifah
ALCHEMY Vol 7, No 2 (2019): ALCHEMY: Journal of Chemistry
Publisher : Department of Chemistry, Faculty of Science and Technology UIN Maulana Malik Ibrahim Malan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/al.v7i2.8546

Liquid fuel from polystyrene waste and waste cooking oil biodiesel was successfully obtained through catalytic cracking using Al-MCM-41/Ceramic. The structure, morphology, acidity, and porosity of the catalyst were studied by SEM-EDX, pyridine FTIR, and N2 gas adsorption-desorption. The products of catalytic cracking were analyzed using gas chromatogram-mass spectroscopy (GC-MS). The highest yield was obtained at feedstock variations of 57% (P): 43% (M) with the number of hydrocarbon fractions ( C7) is 0.48%, hydrocarbon fraction (C8 - C12) is 20.99%, and hydrocarbon fraction ( C12) is 78.53% in the cracking time 1 hours. Physical characteristics were reported in the form of density, flash point, and caloric value respective. The performance of liquid fuels with commercial fuels, Premium (RON 88), and additives of methyl tertiary butyl ether (MTBE) comparisons of 225 (mL): 750 (mL): 18.25 (mL) respectively produce thermal efficiency on engine use gasoline generator sets was 28.22% at the load of 2118 Watts. Based on this research, all variations of feedstock produce liquid fuels that are in accordance with SNI 06-3506-1994 concerning the quality of gasoline fuel types.Â Keywords: Catalytic cracking, polystyrene waste, waste cooking oil, liquid fuel

Co-Authors Assari, Anas Ayyun, Ismi Qurrota Dermawan, Ahmad Hawky Elliyanti, Ardita Endang Tri Wahyuni Fauziah, Laily fredy kurniawan Harmami Harmami Ita Ulfin Lukman Atmaja Niâ€™mah, Yatim Lailun Nurfitriyah, Arifah Pamungkas, Firman Satria Sutarno Sutarno Tri Sujadmiko, M. Arif Triyono Triyono

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