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Photodegradation of Permethrin using Photocatalyst Montmorillonite-TiO2 Addy Rachmat; Muhammad Said; Fatma Fatma; Hardi Aji Badarwi; A.M. Ramadhan
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 1, No 1 (2016): February 2016
Publisher : IJFAC (Indonesian Journal of Fundamental and Applied Chemistry)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v1.i1.01

Abstract

            Photocatalyst Montmorillonite-TiO2 was synthesized using template CTAB and natural clay for degradation of Permethrin. The porosity and crystalline phase of catalyst were evaluated using N2 sorption analyzer and XRD diffraction. Permethrin photodegradation was optimized by varying reactant volume, irradiation time and initial concentration. Montmorillonite enhanced by CTAB showed typical porosity i.e. specific surface area, pore radii and pore volume for layer material. It properties decreased as this host material was impregnated with TiO2. XRD diagram indicated that space between layers of Montmorillonite expanded up to 4.7 Å. The diffractogram also confirmed that TiO2 formed an Anatase phase instead of Rutile. Photodegradation conducted at several condition showed relatively low photocatalytic activity. The highest photodegradation was achieved at 50 mL of Permethrin with initial concentration 10 ppm and 100 minutes’ irradiation. Keywords: Permethrin, Photodegradation, Montmorillonite-TiO2
Bentonite intercalated organometallic complex as adsorbent of procion red Lora Vitanesa; Radja Nardo Purba; Aldes Lesbani; Muhammad Said
Science and Technology Indonesia Vol. 2 No. 1 (2017): January
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (454.92 KB) | DOI: 10.26554/sti.2017.2.1.9-16

Abstract

Insertion of bentonite with organometallic compounds [Cr3O(OOCH)6(H2O)3 (NO3)]as adsorbent of procion red with comparison weight ratio of bentonite: organometallic compounds [Cr3O(OOCH)6(H2O)3 (NO3)] i.e.: (2.5:1), (1:1), (1:2) and (1:3) has been done. The results of insertion bentonite were characterized using FT-IR spectrophotometer, XRD, and XRF. Furthermore, the product of optimum insertion was used as an adsorbent of procion red. The spectrogram from FT-IR shows the process of insertion was not optimum for every weight ratio. Characterization using XRD showed the optimum insertion process ratio (1:2) and (1:3) was indicated the presence of diffraction appearing at 2θ region by a shift in the diffraction angles 5.00 and 39o from the original activated bentonite of 20.8o. Characterization using XRF analysis in the ratio (1:3) shows percentage of metal oxide Cr2O3 increase to 82.28%, so at the ratio of 1:3, the process insertion of organometallic compounds into the bentonite has stated success base on its highest percentage. The adsorption process of insertion bentonite organometallic compounds [Cr3O(OOCH)6(H2O)3 (NO3)] ratio (1: 3) shows the magnitude of the rate of adsorption (k) at 0.004 min-1, the adsorption capacity (b), the largest at a temperature of 70oC at 72.99 mol/g, the largest adsorption energy (ΔG) at a temperature of 60oC i.e. 17.05 kJ / mol, the largest enthalpy (ΔH) is 105720.8 kJ/mol, entropy (ΔS) 315 kJ/mol and pH 11 has the biggest value of procion red adsorped, i.e. 33.38 mg/L. Keywords: Bentonite, Organometallic compound [Cr3O(OOCH)6(H2O)3(NO3)].Adsorption, Procion Red
The Change of Nutrients in Tidal Swamp Soil and Palm Oil Plant Due to Several Dosages Application of Palm Oil Mill Effluent on Planting Media Bakri Bakri; Siti Masreah Bernas; Dedik Budianta; Muhammad Said
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 12, No 2 (2015)
Publisher : Faculty of Agriculture, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v12i2.294

Abstract

The change of several soil nutrients in tidal swamp area due to addition of palm oil mill effluent (POME) on soil media. The research objective was to determine the effect of different dosages application of palm oil mill effluent on nutrient changes within planting media. This experiment was conducted in a plastic house by using 8 month ages of plants consisting of 9 pots combined with 6 levels of BOD treatment (Biological Oxygen Demand) concentrations as follows: 20.000 mg/l (L5), 15.000 mg/l (L4), 10.000 mg/l(L3), 5.000 mg/l (L2), 2.500 mg/l (L1) and water only (Lo). The plants were grown for six months from December 2014 to June 2015. The variables observed were pH (H2O), pH KCl, C-Organic, N-Total, P-Bray I (ppm), K- dd, Na, Ca, Mg, Cation Exchange Capacity, Al-dd and H-dd as well as N, P and K nutrients of crop tissues. The results showed that addition of palm oil mill effluent increased soil pH and availability of soil N, P, K, Ca and Mg. Meanwhile nutrients content of N, P and K in tissues were not increased significantly by given POME with BOD up to 20.000 mg/l.
Revitalisasi Fungsi Teologi Islam dalam Konteks Multikultural Perspektif Fethullah Gulen Muhammad Said
Farabi Vol 13 No 1 (2016): AL-Farabi
Publisher : LPPM IAIN Sultan Amai Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This article describes on the neccesity of renewal Islamic theology within context of pluralism and multiculturalism society. One of the contemporary Muslim scholars, Fethullah Gulen, could be considered among the most influential Muslim theologians of our time. His work focus on redefining the nature of Islamic discourse in the contemporary world by doing interreligious and intercultural dialogue. Nowdays, we need to shift our paradigm from classical kalam which dogmatic, abstract, and exclusive to more practical theology based on contemporary life needs, which is called “social theology”. Gulen’s theological discourse distinguished for his support of democracy, humanism, openness to globalization, progressiveness in integrating tradition with modernity, and to make sense of pluralistic-piety.
Pillarization of layer double hydroxides (Mg/Al) with keggin type K4[α-SiW12O40]•nH2O and its application as adsorbent of procion red dye Intan Permata Sari; Muhammad Said; Aldes Lesbani
Science and Technology Indonesia Vol. 2 No. 3 (2017): July
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (572.562 KB) | DOI: 10.26554/sti.2017.2.3.71-75

Abstract

Pillarization of layered double hydroxides with polyoxometalate K4[α-SiW12O40]•nH2O at various times i.e. 3, 6, 9, 12, 24, 36 and 48 hours has been done. The pillared product was characterized by FT-IR spectrophotometer and XRD. The optimum pillared layered double hydroxides of polyoxometalate K4[α-SiW12O40]•nH2O was used as an adsorbent of procion red dye. The results of characterization using FT-IR spectrophotometer is not yet show the optimum pillarization process. The characterisation using XRD the successfully of pillared layered double hydroxides of polyoxometalate K4[α-SiW12O40]•nH2O showing the existence of diffraction angle 8.5o with intensity 355. Furthermore, the pillared layered double hydroxides of polyoxometalate K4[α-SiW12O40]•nH2O with time variation of 12 hours was applied as an adsorbent of procion red dye. The results show the adsorption rate was 0.523 min-1, the highest of absorption capacity at 70oC was 10.8 mol/g, the highest energy of absorption 70 oC was 125 kJ/mol. The enthalpy (∆H) and entropy (∆S), decrease as the increasing concentration of procion red dye. Keywords: layered double hydroxides, polyoxometalate, pillaration, procion red, adsorption
Polystyrene Plastic Waste Conversion into Liquid Fuel with Catalytic Cracking Process Using Al2O3 as Catalyst Nurul Kholidah; Muhammad Faizal; Muhammad Said
Science and Technology Indonesia Vol. 3 No. 1 (2018): January
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (406.334 KB) | DOI: 10.26554/sti.2018.3.1.1-6

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The increase in energy consumption and an increase in the plastic waste generation are two major problems that arise along with economic growth and the increase in population. Styrofoam is one type of polystyrene plastic waste that can be processed into liquid fuels by cracking process. In this study, the cracking process of polystyrene plastic waste into liquid fuel carried by the catalytic cracking process using Al2O3 as a catalyst. This study aimed to determine the effect of the catalyst weight, length of cracking time and range of temperature in the catalytic cracking process of polystyrene plastic waste into liquid fuel toward the mass and characteristics of liquid fuels produced and to determine the composition of liquid fuels produced. The catalytic cracking process of polystyrene plastic waste with catalyst was done in the fixed bed type reactor by heating the reactor with a heater, where the process took place at temperature of 150°C, 200°C, 250°C and 300°C and the length of the process was varied into 20, 40, and 60 minutes and the catalyst weight was also varied, which were 4%, 6% and 8%, while the styrofoam weight was 250 grams. From the research, the highest mass of liquid fuel derived from polystyrene catalytic cracking process was in the amount of 48.8 grams and liquid yield percentage of 19.5% at temperature of 250°C, cracking time of 60 minutes and weight of 8% catalyst, while the characteristics of liquid fuel that were approaching the characteristics of gasoline was at temperatures of 250°C, cracking time of 60 minutes and weight of 6% catalyst, in which each value of density of 0.763 g/ml, specific gravity of 0.778 and oAPI gravity of 50.2. While other liquid fuels obtained from the cracking of polystyrene were still within the tolerance range characteristic properties of gasoline. Liquid fuels produced from the catalytic cracking process was analyzed using a GC-MS, in which the analysis results indicated that liquid fuels were included in the gasoline fraction.
Rekontekstualisasi Pemikiran Islam dalam Manhaj Ushul Fiqh Hassan Hanafi Muhammad Said
MUHARRIK: Jurnal Dakwah dan Sosial Vol 2 No 01 (2019): Muharrik: Jurnal Dakwah dan Sosial
Publisher : Fakultas Dakwah Institut Agama Islam Sunan Giri Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (484.096 KB) | DOI: 10.5281/zenodo.3544708

Abstract

Abstrak Artikel ini mencoba membahas upaya pembaharuan Ushul Fiqh oleh Hasan Hanafi dalam karyanya ‘Min al-nahs ila al-waqi’. Pembaharuan yang ditawarkan Hanafi dalam karyanya ini adalah rekonstruksi Ushul Fiqh untuk merespon tantangan modernitas. Bagi Hanafi, Ushul fiqh adalah falsafah Hukum Islam. Ia menilai bahwa Ushul Fiqh hari-hari ini telah kehilangan fungsinya vitalnya sebagai falasfah bagi hukum Islam. Akibatnya, ummat Islam acapkali gagap ketika dihadapkan pada tantangan modernitas yang begitu kompleks. Kondisi semacam itu, menurut Hanafi disebabkan oleh “worldview” mainstream umat Islam terhadap turats; utamanya Ushul fiqh. Kebanyakan ummat Islam memandang Ushul Fiqh sebagai produk jadi, dan harus diterima apa adanya (taken for granted). Sehingga Ushul Fiqh menjadi produk yang terus dibaca secara berulang-ulang, tanpa adanya upaya pembacaan yang reproduktif. Padahal, pada awal kemunculanya, Ushul fiqh merupakan ‘perangkat teoritik’ dalam proses ijtihad. Sebagai piranti ijtihad, maka Ushul Fiqh senantiasa melibatkan : rasionalitas, teks dan konteks dalam memproduksi sebuah hukum (al-Istinbath al-ahkam). Maka dari itu, paper ini akan mencoba mengulas : Bagaimanakah ushul fiqh sebagai Falsafah hukum Islam dalam perspektif Hanafi? Bagaimana kontribusi gagasan Hanafi dalam konteks modern? Kata Kunci : Ushul fiqh, Falsafah, Hukum Islam, Turats. Abstract This article tries to discuss the renewal of Ushul Fiqh by Hasan Hanafi in his work "Min al-nahs ila al-waqi". The renewal offered by Hanafi in his work is the reconstruction of Ushul Fiqh to respond to the challenges of modernity. For Hanafi, Ushul fiqh is the foundation of Islamic Law. He considered that Ushul Fiqh had lost its vital function as a function for Islamic law. As a result, the ummah of Islam often stutter when faced with the challenges of modernity. Such conditions, according to Hanafi are caused by the mainstream worldview of Muslims towards turats; mainly Ushul fiqh. Most Muslims see Ushul Fiqh as a finished product, and must be accepted (taken for granted). So, Usul Fiqh is a product that continues to be read repeatedly, without any reproductive reading. In fact, at the beginning of its emergence, Ushul fiqh was a 'theoretical device' in the process of ijtihad. As a tool of ijtihad, Ushul Fiqh always involves: rationality, text and context in producing a law (al-Istinbath al-ahkam). Therefore, this paper will try to review: What is the ushul fiqh as a philosophy of Islamic law in Hanafi's perspective? What is the contribution of Hanafi's ideas in the modern context? Keywords : Ushul fiqh, Philosophy, Islamic Law, Turats.
Zakah Economic Concept in the Determination of Pricing on Islamic Banking Products Riris Aishah Prasetyowatir; Muhammad Said
International Journal of Supply Chain Management Vol 6, No 4 (2017): International Journal of Supply Chain Management (IJSCM)
Publisher : International Journal of Supply Chain Management

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (13.161 KB)

Abstract

Abstract- Determining the selling price and the purchasing price in Islamic banking products has attracted much attention in the post-crisis discussion of how to make the Islamic financial system more firmly running the principles of sharia. This paper investigates and calibrates a Pricing Model Islamic Bank. The model Pricing is adopted from the simple model of general equilibrium. We argue that the theory of consumption inters temporal Islam namely: Islam executed by the community, Zakat is obligatory, No usury in the economy. We argue that, has its own pricing model defeat interest rate provisions of the central bank in positive states of the Islamic Economy. They would have been in a better position to set prices. The allowances accumulated by means of themaximize the zakah for the welfare of the people. That the Islamic pricing model proposed expected into consideration by regulator.
PENGARUH SUMBER DAYA MANUSIA DAN KETRAMPILAN TERHADAP MODAL SERTA IMPLIKASINYA TERHADAP KINERJA PENGRAJIN JUMPUTAN DI PALEMBANG (STUDI KASUS KELURAHAN TUAN KENTANG DAN 30 ILIR) Yun Suprani; Muhammad Said
JURNAL KOMPETITIF Vol 9, No 2: Edisi Juli-Desember 2020
Publisher : Fakultas Ekonomi Universitas Tridinanti Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52333/kompetitif.v9i2.710

Abstract

This research was based on research conducted by the author on 30 respondents jumputan business in Palembang. This research was conducted within 6 months, where the research was conducted using the SPPS 17 program. From the results of SPSS 17 calculations, the PLS-SEM equation is obtained as follows: Capital = 0.469 * HR + 0.290 * Skills, Performance = 0.353 * HR + 0.316 * Skill + 0.261 * Capital. The direct effect of each variable is as follows: Human Resources has a significant effect on Capital. Likewise, the effect of significant Skills on Capital. While the influence of Human Resources is significant on Performance. And the influence of Skills is significant on Performance. Indirect Effects (Indirect Effects) Significant Human Resources on performance mediated by venture capital Crafters of jumping business in Palembang there are no Indirect Effects (Indirect Effedan cts) Skills on performance mediated by the business capital of the business of the business of the business of the Jumping business in Palembang Keywords :Human Resources, Skills, Capital, and Performance
Removal of COD and TSS From Dye Solution Using Sand Filtration and Adsorption Heny Juniar; Muhammad Said; Sri Haryati; Muhammad Faizal
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 1, No 3 (2016): October 2016
Publisher : IJFAC (Indonesian Journal of Fundamental and Applied Chemistry)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v1.i3.67

Abstract

Abstract: This research was conducted in order to obtain proper compositions and the standard condition for the simple filtration equipments and optimum operational conditions in adsorption column. The research was carried out by analyzing parameters COD and TSS. The result showed that the process was able to reduced parameters observed from filtration step until the process in adsorptions column. The optimum conditions for sand filter equipment were 10 cm sand height, at least 7 cm fibers, 3-4 cm gravel. In the adsorption column, the optimum conditions for green waste water were flow rate at 40 ml/min 60 min adsorptions time, and 60 cm bed height. While purple for waste water; 20 mL/min of flowrate, 60 min of adsorption time, and the 60 cm of bed heightKey words: dye solution, COD, TSS, sand filtration, adsorption column Abstrak (Indonesian): Penelitian mengenai pengolahan limbah cair hasil pencelupan benang songket dengan metode filtrasi dan adsorpsi telah dilaksanakan. Penelitian bertujuan untuk mendapatkan komposisi dan ukuran yang tepat bagi alat penyaring sederhana dan mendapatkan kondisi operasi yang tepat bagi kolom adsorpsi.  Parameter pengamatan adalah kadar COD dan TSS.  Hasil penelitian menunjukkan bahwa telah terjadi penurunan kadar limbah sejak tahap penyaringan hingga proses di kolom adsorpsi.  Kondisi optimum alat penyaring sederhana adalah ketebalan pasir 10 cm, ijuk minimal 7 cm, kerikil 3-4 cm dan penambahan tawas sebanyak 2g/L limbah.  Pada kolom adsorpsi kondisi optimum adalah kecepatan alir 40 mL/menit, waktu tinggal di kolom 60 menit dan ketinggian unggun batubara 60 cm.Kata kunci: limbah cair pencelupan, bahan-bahan berbahaya, filtrasi pasir, kolom adsorpsi