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All Journal Farabi Jurnal Kompetitif EKOMBIS REVIEW: Jurnal Ilmiah Ekonomi dan Bisnis IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Sriwijaya International Seminar on Energy-Environmental Science and Technology Science and Technology Indonesia Jurnal PAJAR (Pendidikan dan Pengajaran) EDUVELOP (Journal of English Education and Development) SEIKO : Journal of Management & Business International Journal of Supply Chain Management MUHARRIK: JURNAL DAKWAH DAN SOSIAL Molekul: Jurnal Ilmiah Kimia Jurnal Bisnis Terapan Jurnal Ilmiah Manusia dan Kesehatan JURPIKAT (Jurnal Pengabdian Kepada Masyarakat) Jurnal Studi Islam Lintas Negara (Journal of Cross-Border Islamic Studies) Multidiciplinary Output Research for Actual and International Issue (Morfai Journal) SRIWIJAYA JOURNAL OF ENVIRONMENT Edu Learning : Journal of Education and Learning Jurnal Pengabdian Mandiri Jurnal Ilmu Manajemen Mulawarman (JIMM) Seminar Nasional Hasil Penelitian LP2M UNM Equivalent : Journal of Economic, Accounting and Management Konstanta : Jurnal Matematika dan Ilmu Pengelatuan Alam Tilawah: Journal of Al-Qur'an Studies Innovasi : Jurnal Inovasi Pendidikan

Muhammad Said

Department of Chemical Engineering, University of Sriwijaya, Palembang

Author-ID : 323379

Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Transportation Other

Published : 38 Documents Claim Missing Document

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Articles

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Adsorption of congo red using Mg/Al hydrotalcite Muhammad Said; Neza Rahayu Palapa
Science and Technology Indonesia Vol. 2 No. 1 (2017): January
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Polyoxometalate H4[α-SiW12O40].nH2O intercalated layered double hydroxide (1:1) was used as adsorbent colored-dye. Polyoxometalate H4[αSiW12O40].nH2O intercalated layered double hydroxide ratio (1:1) was applied as the adsorbent of Congo red-dye, and produce 51.38 (min-1) of the adsorption rate, for the largest of the adsorption capacity (b) 9.091 mol/g at 70°C, the largest adsorption energy 10.752 kJ/mol at 30°C. The value of the enthalpy (ΔH) and entropy (ΔS) decreased with increasing concentration of Congo red-dye. Effect adsorption of pH was show the optimal pH at 8 with the amount Congo red absorbed were 47.529 ppm. Keywords: Hydrotalcite, layered double hydroxide, polyoxometalate, intercalated, Congo red, adsorption

Pillarization of double layer hydroxides using H3[-PW12O40]nH2O: effect of pillarization time Muhammad Imron; Muhammad Said
Science and Technology Indonesia Vol. 2 No. 2 (2017): April
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

The pillarization of Mg/Al double layer hydroxides using polyoxometalate H3[α-PW12O40]·nH2O by comparing the pillarization time i.e. 3 hours, 6 hours, 9 hours, 12 hours, 24 hours, 36 hours and 48 hours has been done. The product of a pillarization was characterized using an FT-IR spectrophotometer and XRD analysis. The result characterization of FT-IR spectrophotometer does not show the optimum of pillarization each time condition. Characterization using XRD shows the optimum pillarization process at 36 hours by showing the existence of double layer hydroxides material at diffraction angle 11.69o deg, 18.30o deg and 34.71o deg. Diffraction in the 60o-63o deg indicates the existence of a pillarization double layer hydroxides. Keywords: Layered double hydroxides, pillarization, polyoxometalate H3[α-PW12O40]·nH2O.

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

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

Adsorption of procion red using layer double hydroxide Mg/Al Muhammad Imron; 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

Layer double hydroxide Mg/Al was synthesized by inorganic synthetic method. Material was characterized using FTIR and XRD analyses and used as adsorbent of procion red dye in aqueous medium. Factors that affect the adsorption process are adsorption time as the kinetic parameter; and the temperature and concentration of procion red as the thermodynamic parameter. FTIR spectra of layer double hydroxides showed unique vibration at wavenumber 1300 cm-1 and 1600 cm-1. Characterization using XRD shows diffraction angles at 29o, 27o, and 28o, which are typical of Mg/Al double layer hydroxides. Adsorption of procion red using layer double hydroxide Mg/Al resulted adsorption rate 7.1 minutes-1, maximum adsorption capacity 111.1 mg/g at 60 oC with increasing energy by increasing adsorption temperature. Keywords: Layered double hydroxides, adsorption, procion red.

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

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.

Adsorption of Cobalt (II) on Layered Double Hydroxides (Mg/Al and Ca/Al) In Aqueous Medium : Kinetic and Thermodynamic Aspect Neza Rahayu Palapa; Tarmizi Taher; Muhammad Said; Risfidian Mohadi; Aldes Lesbani
Science and Technology Indonesia Vol. 3 No. 4 (2018): October
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Layered double hydroxides Mg/Al and Ca/Al has been synthesized by co-precipitation method with molar ratio M2+:M3+ (3:1) at pH 10. The synthesized materials were characterized by XRD and FTIR. The materials were used as adsorbent for the removal Cobalt (II) in aqueous solution. The adsorption experiments were studied through some variables adsorption such as variation of contact time, variation of temperature and variation of initial concentration. Kinetic parameters was obtained from variation of contact time. Data was analyzed by pseudo-first-order and pseudo-second-order kinetics models in linear analyses. The kinetic studies showed that the adsorption process more fitted by pseudo-second-order than pseudo-first-order based on coefficient correlation. Isotherm parameters was calculated using Langmuir and Freundlich isotherm models. The adsorption process was spontaneous and endothermic.

Comparison of Cr/C and Cr2O3/Z Catalysts on Hydrocracking of Bio Oil from Pyrolysis of Palm Empty Fruit Bunches Zainal Fanani; Hasanuddin hasanuddin; Addy Rachmat; Muhammad Said
Molekul Vol 16, No 3 (2021)
Publisher : Universitas Jenderal Soedirman

Bio-oil derived from palm empty fruit bunch is not suitable for fuel purpose due to high acidity and low heating. Cr2O3/Zeolite and Cr/C catalysts was developed to upgrade bio-oil through hydrocracking. The catalyst prepared via impregnation method followed by oxidation-reduction. Ammonia and pyridine adsorption used to evaluate acidity as well as crystallinity assessment by using XRD. Hydrocracking reaction conducted in hydrogen gas flow rates 0.5-3.0 L/min, the surface area of Cr/C catalyst found out 1,497.07-1,652.58 m2/g, whilst the temperatures 450 to 700 ℃ and the catalyst weights between 0.5 to 2.5 g. Acidity calculated from ammonia and pyridine adsorption shows Cr2O3/Zeolite has higher value compare to pristine Zeolite. XRD pattern shows Cr2O3/Zeolite has high crystallinity as indicated by sharp and pointed diffraction peaks. The optimum condition of hydrocracking confirmed by lower density of liquid product. The variables obtained by a separate experiments shows that H2 gas flow rate best at 2.5 L/min, temperature of hydrocracking 500 ℃ for Cr2O3/Zeolite and 600oC for Cr/C whereas weight of Cr2O3/Zeolite catalyst is 1.5 g. The Cr/C catalyst that gave low density product possess 1,554.48 m2/g surface area. GCMS data shows increase on the number of straight chain compounds within the hydrocracking product.

PENGARUH KOMPETENSI, PELATIHAN DAN KEPEMIMPINAN TERHADAP KINERJA Asri Asri; Muhammad Said; Sridamayanti Sridamayanti
SEIKO : Journal of Management & Business Vol 3, No 3 (2020): July - December
Publisher : Program Pascasarjana STIE Amkop Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37531/sejaman.v3i3.726

Kabupaten Polewali Mandar, sebagai salah satu kabupaten yang secara administratif masuk ke dalam Provinsi Sulawei Barat sejak tahun 2004 setelah di mekarkan dari Sulawesi Selatan Penelitian yang ingin dicapai, penelitian berjenis penelitian kuantitatif dengan metode survei dengan teknik analisis korelasional untuk mengetahui pengaruh hubungan variabel terikat dan variabel bebas. Penelitian ini dilakukan pada Dinas Parawisata Propinsi Sulawesi Baratpobulu Variabel yang dominan berpengaruh terhadap kinerja pegawai adalah kompetensi, hal ini berarti peningkatan pengetahuan, keterampilan dan sikap pegawai akan lebih mendorong peningkatan kinerja pegawai pada Dinas Parawisata Propinsi Sulawesi Barat. Keyword : Kompetensi, Kepemimpinan Kinerja

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- 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.

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

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.

Co-Authors A.M. Ramadhan Abdul Wahab Mohammad Addy Rachmat Aldes Lesbani Anang Gustianda Aris Munandar Ariyani, Rika Asri Asri Atil Kazria Ayuni Setiawati Bakri Bakri Bambang Sutedjo Chalid Imran Musa Dedik Budianta Desi Ardilla Dina Puspita Dinda Tria Artika Dirga Lestari Eddy Suroso Edi Wardani Ensu Ensu Fanani, Muhammad Zainal Fatma Fatma Fenty Fauziah Fitriansyah Habibah Hambali Hani’atul Khoiroh Hardi Aji Badarwi Hasanuddin Hasanuddin Hasni Hasni Heny Juniar Hoirun Najwa Ibrahim Ibrahim Indri Septianur Rahmawati Intan Permata Sari iti Nurholiza Juliyati Kristina Tresia Leto Lora Vitanesa Lukmanul Hakim Margi Subahagia Masdania Zurairah Muhammad Alamul Huda Muhammad Arfin Muhammad Salim Muhammad Bagus Saputra Muhammad Faizal Muhammad Farih Muhammad Imron Muhammad Makinuddin Muhammad Ryansyah Mukarramah Machmud Muliati Muluki Nurul Fadilah Aswar Nurul Kholidah Prasetyo Ery, Anda Putri, Yuni Adinda Radja Nardo Purba Ramlan Rindiyanti Riris Aishah Prasetyowatir Risfidian Mohadi Rizkha Rida Rulbadiyah Satria Jaya Priatna, Satria Jaya Siti Masreah Bernas Siti Rozaimakh Sheikh Abdullah Sri Haryati Sridamayanti Sridamayanti Sukisno S. Riadi Supiani Tarmizi Taher Tibrani Tina Siti Marfuah Trisna Harmila Wahyu Hidayat Yalis Maulani Yeyen Yeyen Yun Suprani Yun Suprani Yusro Hakimah Yusro Hakimah

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