Article Per Year (5 Year)
p-Index From 2021 - 2026
5.599
P-Index
This Author published in this journals
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
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

Published : 119 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 119 Documents
Search

 8   9   10   11   12 
Efficient Desulfurization of 4-Methyldibenzothiophene Using H5PV2Mo10O40/TiO2: A Catalytic Approach Anggraini, Ana; Jefri, Jefri; Komis; Lesbani, Aldes
Indonesian Journal of Material Research Vol. 3 No. 1 (2025): March
Publisher : Magister Program of Material Science Graduate School of Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/ijmr.20253152

Abstract

Oxidation desulfurization (ODS) is an effective method to remove sulfur compounds from fuels by converting them into more polar oxidized forms that are easier to extract. In this study, H₅PV₂Mo₁₀O₄₀/TiO₂ catalysts were synthesized and characterized using FT-IR spectroscopy. The FT-IR spectra confirmed the successful impregnation of polyoxometalate into the TiO₂ matrix, indicated by the appearance of Ti-O and O-Ti-O vibrations, while the typical H₅PV₂Mo₁₀O₄₀ peaks remained detectable. The performance of the H₅PV₂Mo₁₀O₄₀/TiO₂ catalyst in the desulfurization of 4-methyldibenzothiophene (4-MDBT) was studied based on variations in reaction time, catalyst mass, temperature, and amount of H₂O₂. The optimal conditions obtained were a reaction time of 2 hours, a catalyst mass of 0.05 g, a temperature of 60°C, and a volume of H₂O₂ of 5 mL, with a maximum sulfur conversion of 99.0%. These results indicate that H₅PV₂Mo₁₀O₄₀/TiO₂ has potential as an efficient ODS catalyst.
Synthesis, Characterization, and Catalytic Performance of H₃[α-PMo₁₂O₄₀]·nH₂O-TiO₂ in Cyclohexane Oxidation Lingga, Fitra Wahyuni; Jefri, Jefri; Mohadi, Risfidian; Lesbani, Aldes
Indonesian Journal of Material Research Vol. 3 No. 1 (2025): March
Publisher : Magister Program of Material Science Graduate School of Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/ijmr.20253153

Abstract

This study aims to synthesize and characterize the H₃[α-PMo₁₂O₄₀].nH₂O-TiO₂ composite as a heterogeneous catalyst for cyclohexane oxidation using H₂O₂. FT-IR and XRD characterization showed the interaction between POM and TiO₂, with an increase in TiO₂ ratio leading to a decrease in POM crystallinity. Reaction optimization showed that the POM-1.00TiO₂ catalyst gave the highest conversion of 99.95% at 80°C, 2 hours reaction time, 3 mL H₂O₂ volume, and 0.1 g catalyst mass. GC analysis confirmed the formation of cyclohexanol and cyclohexanone, with the optimized conditions resulting in a balanced selectivity of 35.51% for cyclohexanol and 34.69% for cyclohexanone, demonstrating the catalyst's effectiveness in cyclohexane oxidation.
Pembelajaran Modifikasi Nutrasetikal Temu Mangga Menjadi Produk “Temapro” untuk Kesehatan Masyarakat Miksusanti Miksusanti; Risfidian Mohadi; Aldes Lesbani; Nirwan Syarif; Neza Rahayu Palapa; Azhar Kholiq; Syafrina Lamin
Bumi : Jurnal Hasil Kegiatan Sosialisasi Pengabdian kepada Masyarakat Vol. 3 No. 2 (2025): Bumi : Jurnal Hasil Kegiatan Sosialisasi Pengabdian kepada Masyarakat
Publisher : Asosiasi Riset Teknik Elektro dan Informatika Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/bumi.v3i2.760

Abstract

This community service program aims to develop nutraceutical-based health products from temu mangga (Curcuma mangga Val.van Zip) and probiotics, called "TEMAPRO". Research and socialization were conducted in Pulau Semambu Village, South Sumatra, targeting village mothers who have limited knowledge about the benefits of herbs and probiotics. Temu mangga, which is traditionally consumed as a salad and herbal medicine, contains various active compounds that have the potential as antioxidants and anti-cancer. Combined with the probiotic Lactobacillus rhamnosus, this product is expected to support digestive health and increase body immunity. Implementation methods include education, training in making temu mangga extract, mixing with probiotics, and product packaging techniques. The results of the activities showed an increase in community understanding and skills in processing local materials into health products with economic value. It is hoped that "TEMAPRO" will not only improve the quality of public health, but also open up business opportunities in the village through local nutraceutical products.
Evaluation of Natural Zeolite and Bentonite as Catalysts in Cyclohexanone Oxidation with Hydrogen Peroxide Hidayatullah, Muhammad; Wibiyan, Sahrul; Mohadi, Risfidian; Lesbani, Aldes
Indonesian Journal of Material Research Vol. 3 No. 3 (2025): November
Publisher : Magister Program of Material Science Graduate School of Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/ijmr.20253369

Abstract

The catalytic oxidation of cyclohexanone using environmentally benign oxidants remains a key challenge in sustainable organic synthesis. In this study, natural zeolite (clinoptilolite and mordenite) and bentonite were evaluated as heterogeneous catalysts for the oxidation of cyclohexanone with hydrogen peroxide under reflux at 90 °C. Structural characterization by X-ray diffraction (XRD) and Fourier-transform infrared spectroscopy (FTIR) confirmed the aluminosilicate frameworks, where clinoptilolite exhibited the highest crystallinity, followed by bentonite and mordenite. The oxidation products were analyzed using FTIR, melting point measurements, and gas chromatography–mass spectrometry (GC–MS). Despite the catalytic activity of all materials, FTIR and melting point analyses revealed that the expected adipic acid was not formed under the applied conditions. GC–MS results indicated the formation of partially oxidized oxygenated intermediates such as alcohols, ethers, and carbonyl derivatives, whose distribution strongly depended on the catalyst’s pore structure and surface properties. Clinoptilolite promoted confined partial oxidation due to its microporous structure, whereas bentonite facilitated non-selective oxidation owing to its open layered framework. These findings emphasize that the interplay between molecular confinement and oxygen accessibility governs the selectivity of cyclohexanone oxidation and provides insights for the rational design of improved zeolite- and clay-based catalytic systems for green oxidation reactions.
Synthesis of Adipic Acid via Eco-Friendly Oxidation of Cyclohexanone–Cyclohexanol Mixture over B₂O₃–SiO₂ Catalyst Sitanggang, Jonra P.; Wijaya, Alfan; Mohadi, Risfidian; Lesbani, Aldes
Indonesian Journal of Material Research Vol. 3 No. 3 (2025): November
Publisher : Magister Program of Material Science Graduate School of Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/ijmr.20253370

Abstract

The synthesis of adipic acid through the oxidation of a cyclohexanone–cyclohexanol mixture was investigated using 30% hydrogen peroxide (H₂O₂) as the oxidizing agent and a B₂O₃–SiO₂ catalyst synthesized via heat treatment at various temperatures. This study aimed to evaluate the catalytic performance of B₂O₃–SiO₂ in facilitating the oxidation reaction and to determine the optimum reaction conditions for achieving the maximum yield of adipic acid. The effects of reaction time and temperature on the oxidation process were systematically studied. The reactions were conducted for 5, 6, 7, and 8 hours at temperatures of 60°C, 70°C, 80°C, and 90°C. The reaction products were analyzed using Gas Chromatography (GC) and Fourier Transform Infrared Spectroscopy (FT-IR). The results showed that the B₂O₃–SiO₂ catalyst exhibited the highest catalytic activity at 90°C, producing adipic acid with a maximum yield of 2.36% after 7 hours of reaction. Based on FT-IR characterization, it was observed that the B₂O₃–SiO₂ catalyst became unstable after the reaction, as indicated by the reduction of Brønsted acid sites. This decrease in acidity led to a less effective catalytic performance, resulting in a suboptimal oxidation process and a relatively low yield of adipic acid.
The Potential of Shell Extract as a Hemostasis and Wound Healing Agent: A Literature Review Erlyn, Putri; Irfannuddin, Irfannuddin; Murti, Krisna; Lesbani, Aldes
Jurnal Kedokteran Brawijaya Vol. 33 No. 1 (2024)
Publisher : Fakultas Kedokteran Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jkb.2023.033.01.6

Abstract

Hemostasis is an emergency medical treatment to reduce pain and patient mortality, therefore research is being developed to find effective hemostasis. The utilization of natural materials for hemostasis and wound healing is rapidly expanding, including chitosan found in shell extracts. Chitosan is obtained from chitin found in the soft shells of marine animals such as squid, shrimp, and crabs, or from hard shells such as clams, crabs, and lobsters. Chitosan offers advantages such as good biodegradability, biocompatibility, and non-toxicity, and has been widely used in biomedical, chemical, food, and cosmetic industries. This literature review aims to investigate the potential of shell extracts, particularly the characteristics of chitosan, in wound healing across hemostasis, inflammation, proliferation, and remodeling stages. The study results indicate that extracts from shells containing chitosan exhibit varying characteristics in terms of molecular weight and degree of deacetylation. Chitosan with higher molecular weight and degree of deacetylation tends to yield better outcomes in hemostasis and wound healing. The material is effective in reducing antithrombin, enhancing blood clotting processes, and aiding clot formation. Increased molecular weight contributes to stimulating various cytokines, such as TNF-α, TGF-ß1, and FGF2, which play a key role in the wound healing process. Additionally, higher degree of deacetylation chitosan is effective in stimulating fibroblast proliferation. Chitosan also influences VEGF in inducing angiogenesis and enhancing neovascularization in bone healing. Chitosan from shell extracts with certain molecular weight characteristics and degree of deacetylation has the potential to be the material of choice for accelerating hemostasis and wound healing.
Treatment of Methylene Blue Using Ni-Al/Magnetite Biochar Layered Double Hydroxides Composite by Adsorption Zahara, Zaqiya Artha; Royani, Idha; Palapa, Neza Rahayu; Mohadi, Risfidian; Lesbani, Aldes
Bulletin of Chemical Reaction Engineering & Catalysis 2023: BCREC Volume 18 Issue 4 Year 2023 (December 2023)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20049

Abstract

Methylene blue dye is hard to degrade and requires treatment using Ni-Al Layered double hydroxides (LDHs) modified with magnetite biochar (MBC) to form Ni-Al/magnetite biochar composite in overcoming environmental pollution. Material attainment was identified by characterization using X-Ray Diffraction (XRD), Fourier Transform – Infra Red (FT-IR), Branuer Emmet Teller (BET), Scanning Electron Microscopy – Energy Dispersive X-Ray (SEM-EDX) and Vibration Sample Magnetometer (VSM). XRD characterization displays angle 2θ at 11°, 60° is a typical angle of LDH, and angles 22° and 35° of magnetite biochar. FT-IR characterization analysis at wavelength 1381 cm-1 for NO3- group and M-O group at wave number 700 cm-1. C-H group on biochar at 1404 cm-1 and wave number 586 cm-1 for Fe-O group. BET characterization analysis of Ni-Al/MBC has a large surface area and pore volume of 127.310 m²/g and 0.1950 cm³/g. SEM characterization analysis of Ni-Al/MBC has large, coarse pores and non-uniform shape, EDX data shows that there are forming elements such as Ni, Al from LDH and, Fe, C elements from magnetite biochar. pH, kinetics, isotherms, and thermodynamics become influential in adsorption processes. The adsorption capacity of the composite reaches 68.493 mg/g by following the Langmuir equation and adsorption kinetics refers to the Pseudo Second Order (PSO) equation. Adsorption continuity is spontaneous and endothermic. Ni-Al/MBC has stability in the process of adsorbent regeneration up to five adsorption cycles and, therefore can be used as a potential adsorbent in the treatment of methylene blue dye in aqueous environmental pollution. Copyright © 2023 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). 
Recycle Performance of Heterogeneous Catalyst Metal Oxides-Based Layered Double Hydroxide for Oxidative Desulfurization Process of 4-methyldibenzothiophene Ahmad, Nur; Rohmatullaili, Rohmatullaili; Hanifah, Yulizah; Wibiyan, Sahrul; Amri, Amri; Wijaya, Alfan; Mardiyanto, Mardiyanto; Mohadi, Risfidian; Royani, Idha; Lesbani, Aldes
Bulletin of Chemical Reaction Engineering & Catalysis 2023: BCREC Volume 18 Issue 4 Year 2023 (December 2023)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20034

Abstract

The desulfurization of oil must be resolved as soon as possible due to a variety of issues, including environmental contamination and protection regulations. It was believed that oxidative desulfurization (ODS) was the most promising method. In this research, metal oxide-based layered double hydroxides (TiO2@Ni-Al and ZnO@Ni-Al) were effectively synthesized for the ODS of 4-methyldibenzothiophene (4-MDBT). TiO2@Ni-Al and ZnO@Ni-Al exhibited superior catalytic performance and high recycling capacity, achieving a 99% removal rate after five reactions in 30 min. The heterogeneous catalyst TiO2@Ni-Al/ZnO@Ni-Al is easy to separate and recover from a reaction system. Increased temperature facilitates the transformation of 4-MDBT into 4-MDBTO2. The influence of H2O2's rapid decomposition rate, which can inhibit oxidation reactions, reduces the catalytic activity as the temperature increases. 4-MDBT Sulphur removal on TiO2@Ni-Al and ZnO@Ni-Al is 99.48 and 99.51%, respectively. TiO2@Ni-Al and ZnO@Ni-Al have great potential for use in the industry based on these results. Copyright © 2023 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). 
Green-Modified Ni/Al LDH with Camellia sinensis Bioactives: A Sustainable Strategy for Ceftriaxone Removal Amri, Amri; Fithri, Najma Annuria; Said, Muhammad; Lesbani, Aldes
Bulletin of Chemical Reaction Engineering & Catalysis 2026: BCREC Volume 21 Issue 1 Year 2026 (April 2026)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20513

Abstract

Ceftriaxone (CEF) is a β-lactam antibiotic widely used in the medical field to treat various bacterial infections in both humans and animals. The high usage of CEF has the potential to cause environmental pollution and antimicrobial resistance, necessitating effective treatment methods. In this study, the adsorption method is proposed using Ni/Al layered double hydroxide (LDH) and Camellia sinensis extract-modified material (Ni/Al-CSe) as a sustainable bio-modification approach. The results show the optimal adsorption pH for Ni/Al LDH is 3 and for Ni/Al-CSe is 5, with the adsorption isotherms following the Freundlich model and the kinetics conforming to pseudo-first order (PFO). The maximum adsorption capacity (Qm) significantly increased from 28.818 mg.g-1 (Ni/Al LDH) to 111.111 mg.g-1 (Ni/Al-CSe). Thermodynamic analysis revealed that adsorption on both materials proceeds spontaneously, while the consistently more negative ΔG values and predominantly exothermic behavior of Ni/Al-CSe confirm its superior thermodynamic favorability associated with more specific surface interactions. Regeneration tests up to four cycles showed that Ni/Al-CSe was more stable than Ni/Al LDH. Overall, modifying Ni/Al LDH with Camellia sinensis extract was proven to enhance adsorption capacity, spontaneity, and stability, providing an effective and environmentally friendly solution for antibiotic treatment. Copyright © 2026 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
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