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All Journal VALENSI CAKRA KIMIA (Indonesian E-Journal of Applied Chemistry) Jurnal Kimia (Journal of Chemistry) CHEMISTRY PROGRESS International Journal of Science and Engineering (IJSE) Jurnal Penelitian Sains (JPS) Jurnal Kedokteran Brawijaya Jurnal Matematika & Sains The Journal of Pure and Applied Chemistry Research AGRIVITA, Journal of Agricultural Science Jurnal Penelitian Sains (JPS) IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) JPSriwijaya Indonesian Journal of Chemical Science Science and Technology Indonesia Jurnal Penelitian Sains Indonesian Journal of Chemistry Communications in Science and Technology IJEMS (Indonesian Journal of Environmental Management and Sustainability) Riau Journal of Empowerment Molekul: Jurnal Ilmiah Kimia Sains dan Matematika SRIWIJAYA JOURNAL OF ENVIRONMENT Makara Journal of Science Makara Journal of Technology Aceh International Journal of Science and Technology Karunia: Jurnal Hasil Pengabdian Masyarakat Indonesia Bulletin of Chemical Reaction Engineering & Catalysis Indonesian Journal of Material Research Bumi: Jurnal Hasil Kegiatan Sosialisasi Pengabdian Kepada Masyarakat

Aldes Lesbani

Universitas Sriwijaya

Author-ID : 305968

Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Neuroscience Physics Public Health Social Sciences

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Characterization and Utilization of Calcium Oxide (CaO) Thermally Decomposed from Fish Bones as a Catalyst in the Production of Biodiesel from Waste Cooking Oil Lesbani, Aldes; Sitompul, Sabat Okta Ceria; Mohadi, Risfidian; Hidayati, Nurlisa
Makara Journal of Technology Vol. 20, No. 3
Publisher : UI Scholars Hub

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

Thermal decomposition of fish bones to obtain calcium oxide (CaO) was conducted at various temperatures of 400, 500, 800, 900, 1000, and 1100 °C. The calcium oxide was then characterized using X-ray diffractometer, FTIR spectrophotometer, and SEM analysis. The calcium oxide obtained from the decomposition at 1000 °C was then used as a catalyst in the production of biodiesel from waste cooking oil. Diffraction pattern of the calcium oxide produced from decomposition at 1000 °C showed a pattern similar to that of the calcium oxide produced by the Joint Committee on Powder Diffraction Standard (JCDPS). The diffractions of 2q values at 1000 °C were 32.2, 37.3, 53.8, 64.1, and 67.3 deg. The FTIR spectrum of calcium oxide decomposed at 1000 °C has a specific vibration at wave-length 362 cm-1, which is similar to the specific vibration of Ca-O. SEM analysis of the calcium oxide indicated that the calcium oxide’s morphology shows a smaller size and a more homogeneous structure, compared to those of fish bones. The use of calcium oxide as a catalyst in the production of biodiesel from waste cooking oil resulted in iod number of 15.23 g/100 g KOH, density of 0.88 g/cm3, viscosity of 6.00 cSt, and fatty acid value of 0.56 mg/KOH. These characteristic values meet the National Standard of Indonesia (SNI) for biodiesel.

Kinetic Adsorption of Direct Yellow Onto Zn/Al and Zn/Fe Layered Double Hydroxides Neza Rahayu Palapa; Bakri Rio Rahayu; Tarmizi Taher; Aldes Lesbani; Risfidian Mohadi
Science and Technology Indonesia Vol. 4 No. 4 (2019): October
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Zn/Al and Zn/Fe layered double hydroxides has successfully synthesized by co-precipitation methods with molar ration 3:1. The samples were characterized using X-Ray Diffraction, Fourier Transform Infrared Spectroscopy and Surface Area using BET method. In this study, Zn/Al and Zn/Fe layered double hydroxides were used to remove direct yellow dye in aqueous solution. The experiments were carried out time variations with the aim of observing the kinetic studies. The results showed that the adsorption of direct yellow onto Zn/Al and Zn/Fe layered double hydroxides based on co-efficient correlation kinetic models more fit using pseudo-second-order than pseudo-first-order.

Malachite Green Removal by Zn/Al-citrate LDHs in Aqueous Solution Nurlisa Hidayati; Risfidian Mohadi; Elfita Elfita; Aldes Lesbani
Science and Technology Indonesia Vol. 5 No. 2 (2020): April
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Modification of Cu/Cr Layered Double Hydroxide by Keggin Type Polyoxometalate as Adsorbent of Malachite Green from Aqueous Solution Neza Rahayu Palapa; Tarmizi Taher; Alfan Wijaya; Aldes Lesbani
Science and Technology Indonesia Vol. 6 No. 3 (2021): July
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Modification of Cu/Cr layered double hydroxides (LDHs) has been conducted by intercalation using Keggin type polyoxometalate [a-SiW12O40]4- to form CuCr-[a-SiW12O40]. The materials were analyzed by XRD, FTIR, and surface area analyses. Furthermore, materials were used as selectivity adsorbents of cationic dyes such as malachite green, rhodamine-B and methylene blue. The malachite green is more selective than others from an aqueous solution. The adsorption of malachite green showed that the adsorption capacity of CuCr-[a-SiW12O40] was higher than pristine LDHs. The adsorption process was followed pseudo second order kinetic model and Langmuir isotherm adsorption. The Qmax value of CuCr-[a-SiW12O40] reached 55.322 mg/g at 323 K after 100 minutes adsorption time. Thermodynamic parameters such as ΔG, ΔH and ΔS confirm that the adsorption process was endothermic, spontaneous, and more favorable at high temperatures. The intercalated material was higher structural stability toward reusability adsorbent than pristine LDHs.

Calcium Oxide Decomposed From Chicken’s and Goat’s Bones as Catalyst For Converting Discarded Cooking Oil to be Biodiesel Aldes Lesbani; Yosine Susi; Marieska Verawaty; Risfidian Mohadi
Aceh International Journal of Science and Technology Vol 4, No 1 (2015): April 2015
Publisher : Graduate Program of Syiah Kuala University

Thermal decomposition of calcium oxide from chicken’s (Gallus gallus domesticus) and goat’s (Capra Hircus Aegragus) bones was prepared at temperature variations of 400, 500, 800, 900, 1000, and 1100 oC respectively. X-ray diffractometer (XRD), FT-IR and SEM were used for calcium oxide characterization. XRD diffraction pattern of the bone’s after thermal decomposition at 1100oC has similarity to the XRD standard diffraction pattern from Joint Committee on Powder Diffraction Standard (JCPDS). Diffractions of 2q values being used are 34.2o, 37.3o, 58.3o, 64.1o, and 67.3 o. Ca-O presence in the samples was detected by FT-IR characterization at wavenumber of 354,90 cm-1. SEM profile show reducing size of bones after decomposition in both chicken’s and goat’s bones. Furthermore, the prepared calcium oxide was applied for biodiesel synthesis from discarded cooking oil through transesterification reaction. By applying the catalysts decomposed from chicken’s and goat’s bones, the biodiesel product showed characteristics as follows: biodiesel applied the chicken’s bone catalyst has fatty acid number of 0.56 mg/KOH, iod number of 22.41 g I2/100 g KOH, density of 0.88 g/cm3 and viscosity of 5.91 mm2/s, while biodiesel applied the goat’s bone catalyst has 0.56 mg/KOH, iod number of 21.57 g I2/100 g KOH, density of 0.88 g/cm3 and viscosity of 6.34 mm2/s. Those biodiesel’s characteristic values meet the National Standard of Indonesia (SNI) for biodiesel.

CuAl LDH/Rice Husk Biochar Composite for Enhanced Adsorptive Removal of Cationic Dye from Aqueous Solution Neza Rahayu Palapa; Tarmizi Taher; Bakri Rio Rahayu; Risfidian Mohadi; Addy Rachmat; Aldes Lesbani
Bulletin of Chemical Reaction Engineering & Catalysis 2020: BCREC Volume 15 Issue 2 Year 2020 (August 2020)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.15.2.7828.525-537

The preparation of CuAl LDH and biochar (BC) composite derived from rice husk and its application as a low-cost adsorbent for enhanced adsorptive removal of malachite green has been studied. The composite was prepared by a one-step coprecipitation method and characterized by X-ray Diffraction (XRD), Fourier Transform Infra Red (FTIR), Brunauer-Emmett-Teller (BET), and Scanning Electron Microscopy - Energy Dispersive X-ray (SEM−EDX). The result indicated that CuAl LDH was successfully incorporated with the biochar that evidenced by the broadening of XRD peak at 2θ = 24° and the appearance of a new peak at 1095 cm−1 on the FTIR spectra. The BET surface area analysis revealed that CuAl/BC composite exhibited a larger surface area (200.9 m2/g) that the original CuAl LDH (46.2 m2/g). Surface morphological changes also confirmed by SEM image, which showed more aggregated particles. The result of the adsorption study indicated the composite material was efficient in removing malachite green with Langmuir maximum adsorption capacity of CuAl/BC reaching 470.96 mg/g, which is higher than the original CuAl LDH 59.523 mg/g. The thermodynamic analysis suggested that the adsorption of malachite green occurs spontaneously (ΔG < 0 at all tested temperature) and endothermic nature. Moreover, the CuAl/BC composite showed strong potential as a low-cost adsorbent for cationic dye removal since it showed not only a high adsorption capacity but also good reusability. Copyright © 2020 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

Preparation of Ca/Al-Layered Double Hydroxides/Biochar Composite with High Adsorption Capacity and Selectivity toward Cationic Dyes in Aqueous Risfidian Mohadi; Neza Rahayu Palapa; Aldes Lesbani
Bulletin of Chemical Reaction Engineering & Catalysis 2021: BCREC Volume 16 Issue 2 Year 2021 (June 2021)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.16.2.10211.244-252

Widely reports have evaluated the use of biochar (BC) composites to layered double hydroxide (LDH) to adsorb dyes from wastewater. However, its applicability for adsorbing a mixture of cationic dyes such as Malachite green (MG), Rodhamine-B (Rh-B), and Methylene blue (MB), which causes carcinogenic and mutagenic effects on aquatic life, has not been studied. In this work, we compared the performance of CaAl-LDH/BC adsorbent with or without the addition of BC in the adsorption of cationic dyes. The adsorption study was prepared in a batch system using various temperatures, concentrations, and also contact time. The results of the characterization of Ca/Al-Biochar composite showed the unique diffraction of XRD pattern, and also showed two characteristics of starting materials. Surface area analysis by BET method showed Ca/Al-Biochar composite has a higher surface area than starting material. The results of the adsorption study of MG showed that Ca/Al-Biochar follows the pseudo-second-order kinetic model. The adsorption capacity of MG on Ca/Al-Biochar was up to 71.429 mg/g and shows selectivity toward MG in an aqueous solution. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

Removal of Iron(II) Using Intercalated Ca/Al Layered Double Hydroxides with [α-SiW12O40]4- Tarmizi Taher; Mikha Meilinda Christina; Muhammad Said; Nurlisa Hidayati; Ferlinahayati Ferlinahayati; Aldes Lesbani
Bulletin of Chemical Reaction Engineering & Catalysis 2019: BCREC Volume 14 Issue 2 Year 2019 (August 2019)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.14.2.2880.260-267

Ca/Al layered double hydroxide (LDH) was successfully synthesized by co-precipitation method at pH 11 under room temperature condition then followed by calcination at 800 oC. The synthesized Ca/Al LDH was further intercalated with Keggin ion [α-SiW12O40]4- in order to prepare the intercalated form of Ca/Al LDH. The synthesized materials were characterized by X-ray diffraction (XRD) and Fourier transform infrared (FT-IR) and used as an adsorbent for iron(II) removal from the aqueous medium. The adsorption performance was investigated by studying the kinetics and thermodynamic properties of the adsorption process. The results showed that pristine Ca/Al LDH exhibited diffraction peak at 2θ about 20o which corresponds to the layer structure of the LDH material. For the intercalated Ca/Al LDH, the diffraction observed at 2θ around 30-40o indicated that the [α-SiW12O40]4- was successfully intercalated into the interlayer space of Ca/Al LDH. Furthermore, the intercalated Ca/Al LDH showed higher adsorption capacity toward iron(II) than the pristine form of Ca/Al LDH.

Size Selectivity of Anionic and Cationic Dyes Using LDH Modified Adsorbent with Low-Cost Rambutan Peel to Hydrochar Normah Normah; Novie Juleanti; Patimah Mega Syah Bahar Nur Siregar; Alfan Wijaya; Neza Rahayu Palapa; Tarmizi Taher; Aldes Lesbani
Bulletin of Chemical Reaction Engineering & Catalysis 2021: BCREC Volume 16 Issue 4 Year 2021 (December 2021)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.16.4.12093.869-880

Modification of the layered double hydroxide of CuAl-LDHs by composite with hydrochar (HC) to form CuAl-HC LDH. Material characterization by XRD, FT-IR and SEM analysis was used to prove the success of the modification. The characterization of XRD and FT-IR spectra showed similarities to pure LDH and HC. Selectivity experiments were carried out by mixing malachite green, methylene blue, rhodamine-B, methyl orange, and methyl red to produce the most suitable methyl blue dye for CuAl-LDH, HC and CuAl-HC adsorbents. The effectiveness of CuAl-HC LDH as adsorbent on methylene blue adsorption was tested through several influences such as adsorption isotherm, thermodynamics, and adsorbent regeneration. CuAl-HC LDH adsorption isotherm data shows that the adsorption process tends to follow the Langmuir isotherm model with a maximum adsorption capacity of 175.439 mg/g with a threefold increase compared to pure LDH. The effectiveness of the adsorbent for repeated use reaches five cycles as evidenced by the maximum capacity regeneration data reaching 82.2%, 79.3%, 77.9%, 76.1%, and 75.8%. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

Synthesis of Tris(4-Methoxyphenyl)Phenylsilane Using Phenylsilane and 4-Iodo Anisole Catalyzed by Palladium Complex Lesbani, Aldes; Mohadi, Risfidian; Eliza, Eliza; Mardiyanto, Mardiyanto
Makara Journal of Science Vol. 8, No. 1
Publisher : UI Scholars Hub

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

Sintesis Tris(4-Metoksifenil)Fenilsilan Menggunakan Fenilsilan dan 4-Iodida Anisol dengan Katalis Senyawa Kompleks Paladium. Sintesis tris(4-metoksifenil)fenilsilan melalui reaksi kopling antara fenilsilan dan 4-iodida anisol menggunakan senyawa paladium tersier tributilfosfin sebagai katalis telah dilakukan berdasarkan penentuan senyawa basa, pelarut, dan waktu reaksi kopling. Hasil penelitian menunjukkan bahwa senyawa tris(4-metoksifenil)fenilsilan dapat disintesis menghasilkan persentase produk maksimum pada penggunaan senyawa 1,4-diazabisiko[2,2,2]oktan (DABCO) sebagai basa, tetrahidrofuran sebagai pelarut, dan waktu reaksi kopling selama 5 hari. Persentase tertinggi produk senyawa tris(4-metoksifenil)fenilsilan adalah 35%.

Co-Authors A. Agnes Abi Sueb Abriyanto, Danang Addy Rachmat Adi Saputra Adi Saputra Adi Saputra Adi Saputra Afifah Rahma Dian Ahmad Fatoni Ahmad Fatoni Alfan Wijaya Alfan Wijaya Alfan Wijaya Amiruddin Supu Amri Amri Amri Andi Wijaya Andreas, Roy Andriani Azora Andriani Azora Anggraini, Ana Arini Fousty Badri Arini Fousty Badri Arison Musri Arison Musri Arsyad, Fitri Suryani Aslihati Aslihati Aslihayati Aslihayati Azhar Kholiq Badri, Arini Fousty Bakri Rio Rahayu Bakri Rio Rahayu Benyamin Lakitan Dedi Rohendi Dedi Setiabudidaya Desnelli Desnelli Dian Monariqsa Dian Monariqsa Didi Jasantri Dormian A N Haloho Dormian A N Haloho Eiffel Ostan Jeski Gultom Elfita Elfita . Elfita Elfita Eliza . Eliza Eliza Eliza Eliza Ema Veronika Turnip Endri Junaidi Eriza Sativa Erviana, Desti Fahma Riyanti Fatmawati Fatmawati Ferlinahayati Ferlinahayati Fitri Suryani Arsyad Fitri, Erni Salasia Fitriliana Fitriliana Hanifah, Yulizah Haris Kriswantoro Hermansyah Hermansyah Hermansyah Hermansyah Hesti A. Harahap Hesti A. Harahap, Hesti Hidayatullah, Muhammad Hilda Zulkifli Hilda Zulkifli Hilda Zulkifli Hiroshi Nishihara Hitoshi Kondo Idha Royani Intan Permata Sari Irfannuddin Irfannuddin Jasantri, Didi Jefri Jefri Jeri Ramadhan Juleanti, Novie Kiki Anggraini Kiki Anggraini Kiki Anggraini, Kiki Komis Krisna Murti Laila Hanum Leni Sinaga Lestari Simanjuntak Lestari Simanjuntak Liasari, Beta Riana Lingga, Fitra Wahyuni Lora Vitanesa Lucyanti . Lucyanti Lucyanti Lusi Teresia Mardianto Mardiyanto Mardiyanto Mardiyanto Mardiyanto Mardiyanto Mardiyanto Mardiyanto Mardiyanto Mardiyanto Mardiyanto Mardiyanto Mardiyanto, Marieska Verawaty Mariska Verawaty Melantina Melan Oktriyanti Melwita, Elda Menik Setyowati Mikha Meilinda Christina Miksusanti Miksusanti Muhammad Imron Muhammad Said Muhammad Said Muhammad Said MUHAMMAD SAID Najma Annuria Fithri Najma Annuria Fithri Najma Annuria Fithri Najma Annuria Fithri, Najma Annuria Narsito Narsito Neza Rahayu Niken Oktora Niken Oktora Nirwan Syarif Normah Normah Normah Normah, Normah Nova Yuliasari Novie Juleanti Novie Juleanti Novie Juleanti Nur Ahmad Nur Ahmad, Nur Nurlisa Hidayati Nurlisa Hidayati Nurlisa Hidayati Nurlisa Hidayati Nurlisa Hidayati Nurlisa Hidayati Nurlisa Hidayati Nurlisa Hidayati Nurlisa Hidayati Nurlisa Hidayati Nurlisa Hidayati Nur’aini, Siti Nyanyu Ummu Hani Palita Tamba Patimah Mega Syah Bahar Nur Siregar Patimah Mega Syah Bahar Nur Siregar Patimah Mega Syah Bahar Nur Siregar Poedji Loekitowati Hariani Putri Erlyn Putri, Bunga Indah R.A. Mika Melviana Rabelia Juladika Sayeri Radja Nardo Purba Rakhmawati Farma Ramadhan, Jeri Rananda Vinsiah Randi O. Saragih Ratna, L.P Ratna, L.P Risfidian Mohadi Risfidian Mohadi Risfidian Mohadi Risfidian Mohadi Risfidian Mohadi Risfidian Mohadi Risfidian Mohadi Risfidian Mohadi Risfidian Mohadi Risfidian Mohadi Risfidian Mohadi Risfidian Mohadi Risfidian Mohadi Risfidian Mohadi Risfidian Mohadi Risfidian Mohadi Risfidian Mohadi Risfidian Mohadi Risfidian Mohadi Risfidian Mohadi Risfidian Mohadi Risfidian Mohadi Risfidian Mohadi Risfidian Mohadi Risfidian Mohadi Risma Kurniawati M Rohmatullaili Rohmatullaili, Rohmatullaili Roy Andreas Sabat Okta Ceria Sitompul, Sabat Okta Ceria Samat Samat Savira, Dila Setiawan Yusuf Setiawati Yusuf Setiawati Yusuf Sherly Agustina, Sherly Siregar, Patimah Mega Syah Bahar Nur Sitanggang, Jonra P. Soerya, Balada Sri Juari Santosa Suheryanto Suheyanto Suheryanto Sumiati Sumiati SUMIATI, Susila Arita Syaflina Lamin Syafrina Lamin, Syafrina Tamizi Taher Tarmizi Taher Welinda Me Wibiyan, Sahrul Wijaya, Alfan Winda Fitriana Yeni Iswanti Yoshinori Yamanoi Yosi Saria Yosi Saria Yosi Saria Yosine Susi Yosine Susie Yunita Irianty Zahara, Zaqiya Artha Zazili Hanafiah Zultriana

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