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Case Studies in Chemical and Environmental engineering 2025年 11卷

作者： Yanuhar, Uun Suryanto, Heru Wijaya, Husni Wahyu Binoj, Joseph Selvi Aminnudin, Aminnudin Caesar, Nico Rahman Osman, Azlin Fazlina Nusantara, Fajar Eqisetia Utari, Inpita Casuarina Study Program of Aquatic Resources Management Faculty of Fisheries and Marine Sciences Brawijaya University East Java Indonesia Centre Excellent for Cellulose Composite (CECCom) Department of Mechanical and Industrial Engineering Universitas Negeri Malang East Java Malang Indonesia Department of Chemistry Universitas Negeri Malang East Java Malang Indonesia Institute of Mechanical Engineering Saveetha School of Engineering Saveetha Institute of Medical and Technical Sciences (SIMATS) Saveetha University Chennai India Faculty of Chemical Engineering Technology Universiti Malaysia Perlis Malaysia

This study evaluates bacterial cellulose (BC) membranes reinforced with zinc oxide nanoparticles (ZnO-NP) derived from pineapple biowaste. While BC membranes are widely studied, their use in aquaculture and ZnO reinforcement remains underexplored. Membranes were synthesized with 0.25–1.0 wt% ZnO-NP and characterized by SEM, XRD, FTIR, tensile strength, antibacterial activity, filtration efficacy, and analysis using one-way ANOVA. Results showed ZnO-NP enhanced membrane crystallinity and tensile strength, with 0.25 wt% being optimal. The membranes exhibited improved antibacterial activity, reducing bacterial content by 90.6 % and contaminants by 57 %, enhancing water quality for aquaculture and supporting sustainability and the long-term viability of aquaculture. © 2025

关键词： Acetate membrane Antibacterial activity Bacterial cellulose Pineapple biowaste ZnO nanoparticle

Critical Review on the Abatement Of Endocrine Disrupting Compounds In Iron-Based Materials Catalyzed Persulfate Systems: Reactive Species, Reaction Mechanisms, and Perspectives

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SSRN 2024年

作者： Sun, Ye Huang, Ying Zheng, Shujie Chen, Haojia Yang, Yan Ji, Hongbing Han, Changseok School of Chemical Engineering and Light Industry School of Environmental Science and Engineering Guangdong University of Technology Guangzhou510006 China School of Environment Hangzhou Institute for Advanced Study UCAS Hangzhou310024 China School of Chemistry and Chemical Engineering Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology Guangxi University Nanning530004 China Synergy Innovation Institute of Guangdong University of Technology Shantou515041 China Department of Environmental Engineering INHA University Incheon22212 Korea Republic of Program in Environmental and Polymer Engineering Graduate School of INHA University Incheon22212 Korea Republic of

Persulfate-based advanced oxidation processes have emerged as promising technologies for mitigating endocrine-disrupting compounds (EDCs) in wastewater treatment. Economically viable Fe-based materials with tailored properties have demonstrated significant efficacy in activating persulfate for the decomposition of EDCs through both radical-routes (•OH, SO4•−, and O2•−) and non-radical routes (1O2, surface activated PS complex, and high-valent Fe species). This review summarized the latest advancements in the persulfate activation mechanisms mediated by Fe-based materials, categorized by Fe valence states and the types of reactive species. Furthermore, it critically assesses the influence of active sites of Fe-based catalysts on persulfate activation pathways and summarizes the selective reaction of reactive species towards EDCs. Despite these advancements, several challenges persist in non-radical route-dominated persulfate activation, particularly regarding the impact of Fe-Fe distance on the reactive species and the catalytic role of Fe-based materials for reactions between inorganic ions and persulfate. This review proposes prospective research directions, provides design strategies, and expands the application of Fe-based materials in PS activation for effective EDC abatement in real situations. © 2024, The Authors. All rights reserved.

关键词： Endocrine disrupters

Insights into the Inhibitory Activity and Mechanism of Natural Compounds from Rhinacanthus Nasutus on Α-Glucosidase Through Kinetic, Molecular Docking, and Molecular Dynamics Studies

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SSRN 2024年

作者： Le, Thi-Kim-Dung Ene, Felicitas Duong, Thuc-Huy Mulya, Fadjar Chavasiri, Warinthorn Laboratory of Biophysics Institute for Advanced Study in Technology Ton Duc Thang University Ho Chi Minh City Viet Nam Faculty of Pharmacy Ton Duc Thang University Ho Chi Minh City Viet Nam Center of Excellence in Natural Products Chemistry Department of Chemistry Faculty of Science Chulalongkorn University Bangkok10330 Thailand Department of Chemistry Ho Chi Minh City University of Education Ho Chi Minh City700000 Viet Nam Nanotechnology Engineering Program Faculty of Advanced Technology and Multidiscipline Universitas Airlangga Surabaya60115 Indonesia

Rhinacathin nasutus, commonly found in the tropical regions of Africa and Asia, has demonstrated a range of pharmacological effects, including anticancer, antifungal, anti-inflammatory, anti-Alzheimer, anti-tumor, anti-Parkinson, and hypolipidemic activities. However, reports on how its secondary metabolites inhibit α-glucosidase are scarce. The phytochemical investigation on the stems of Rhinacathin nasuthus resulted in the isolation and identification of a new compound (1) together with nine known metabolites (2−10). Their structures were elucidated by spectroscopic techniques, mass spectrometry and literature values. The absolute configuration of 1 was determined through NOESY data analysis and electronic circular dichroism (ECD) spectroscopy. All isolated compounds were tested for their yeast α-glucosidase inhibitory activity, exhibiting moderate to good activity. Notably, compounds (3), (4), and betulin (8) showed potent activity toward α-glucosidase with IC50 values of 10.8, 18.6, and 6.5 µM, respectively (the positive control, acarbose, IC50 93.63 μM). This study marks the first investigation of α-glucosidase activity for compounds 3 and 4. Therefore, these compounds were chosen for kinetic studies, molecular docking, and molecular dynamics to understand their mechanism. The results from both in vitro and in silico studies suggest that compounds 3 and 4 could be promising candidates for further research in the development of new α-glucosidase inhibitors. © 2024, The Authors. All rights reserved.

关键词： Metabolites

Recent trend of metal promoter role for CO₂ hydrogenation to C₁ and C₂₊ products

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South African Journal of Chemical engineering 2023年 44卷 14-30页

作者： Sholeha, Novia Amalia Holilah, Holilah Bahruji, Hasliza Ayub, Athirah Widiastuti, Nurul Ediati, Ratna Jalil, Aishah Abdul Ulfa, Maria Masruchin, Nanang Nugraha, Reva Edra Prasetyoko, Didik College of Vocational Studies Bogor Agricultural University (IPB University) Jalan Kumbang No. 14 Bogor 16151 Indonesia Research Center for Biomass and Bioproducts National Research and Innovation Agency of Indonesia (BRIN) Cibinong 16911 Indonesia Department Chemistry Faculty of Science and Data Analytics Institut Teknologi Sepuluh Nopember Kampus ITS Keputih Surabaya Sukolilo 60111 Indonesia Centre of Advanced Material and Energy Science Universiti Brunei Darussalam Jalan Tungku Link BE 1410 Brunei Darussalam Department of Chemical Engineering Faculty of Chemical and Energy Engineering Universiti Teknologi Malaysia 81310 UTM Skudai Johor Johor Bahru Malaysia Centre of Hydrogen Energy Institute of Future Energy Universiti Teknologi Malaysia Skudai 81310 UTM Skudai Johor Johor Bahru Malaysia Chemistry Education Study Program Faculty of Teacher Training and Education Sebelas Maret University Jl. Ir. Sutami 36A Surakarta 57126 Indonesia Research Collaboration Center for Biomass and Biorefinery between BRIN and Universitas Padjadjaran Jatinangor 45363 Indonesia Department of Chemical Engineering Faculty of Engineering Universitas Pembangunan Nasional “Veteran” Jawa Timur East Java Surabaya 60294 Indonesia

CO2 hydrogenation as sustainable route for generation of value-added carbon feedstock is identified as green pathway for mitigation of greenhouse gasses emission. CO2 methanation is one of the promising solutions, whi... 详细信息

CO₂ hydrogenation as sustainable route for generation of value-added carbon feedstock is identified as green pathway for mitigation of greenhouse gasses emission. CO₂ methanation is one of the promising solutions, which only requires reactions at atmospheric pressure while utilizing metal catalysts to overcome kinetic limitations. Metal catalysts can be promoted to alter reducibities, CO₂ adsorption capacities, and H_2[sbnd]CO₂ dissociation potential. The role of metal promoter such as rare earth elements (Ce, Mn, Co, and La) and alkali and alkali earth metal (Li, Na, Ca, and K) will be discussed within the scope of CO₂ methanation. The aspect of catalysts modification towards hydrogen dissociation potential and surface oxygen vacancy will be emphasized to enhance selectivity for methane. Another pathway for CO₂ hydrogenation is via further conversion into longer chain molecules such as olefin and ethanol. The benefit of metal promoter will be discussed in this review on the effect towards promoting C[sbnd]C coupling reaction for producing longer chain alcohol and light olefin. The strategies to develop active catalysts for the coupling reaction of C[sbnd]C will be emphasized with the promoter introduction. For the hydrogenation of CO₂ to longer chain molecules, the main metal catalysts Ni, Pd, Rh, and Co, and their modification with promoter such as Ga, Cu, and alkali metal Na, K will be discussed. A critical analysis of the CO₂ methanation mechanism and further C[sbnd]C reaction to longer chain molecules will be discussed, particularly the effect of metal promoters to stabilize the intermediate and maneuver the catalytic reaction pathway into the desired products. © 2023 The Author(s)

关键词： C1 products C2+ products CO2 Hydrogenation Metal promoter

Innovation and utilization of coffee skin waste (Coffea robusta L) as a superior compost for the growth of pepper cuttings (Piper nigrum L.)

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AIP Conference Proceedings 2025年第1期3186卷

作者： Awalul Fatiqin Dewi Lestari R. A. Hoetary Tirta Amalia Riri Novita Sunarti Ike Apriani Anita Restu Puji Raharjeng Rr Mini Sari Wulan Thathit Suprayogi Yahya Febrianto Sudarman Rahman Shesanthi Citrariana Rokiy Alfanaar Mu’afa Purwa Arsana Yithro Serang Wansadaj Jaroenram Biology Study Program Faculty of Mathematics and Natural Sciences Palangka Raya University Palangka Raya Central Kalimantan Indonesia Biology Study Program Faculty of Science and Technology Universitas Islam Negeri Raden Fatah Palembang Palembang South Sumatra Indonesia Education Biology Study Program Faculty of Teacher Training and Education Universitas Islam Negeri Raden Fatah Palembang Palembang South Sumatra Indonesia Physics Study Program Faculty of Mathematics and Natural Sciences Palangka Raya University Palangka Raya Central Kalimantan Indonesia Pharmacy Study Program Faculty of Mathematics and Natural Sciences Palangka Raya University Palangka Raya Central Kalimantan Indonesia Chemistry Study Program Faculty of Mathematics and Natural Sciences Palangka Raya University Palangka Raya Central Kalimantan Indonesia Mathematics Study Program Faculty of Mathematics and Natural Sciences Palangka Raya University Palangka Raya Central Kalimantan Indonesia Department of applied chemistry Chaoyang University of Technology Taichung City Taiwan National center for genetic engineering and biotechnology (BIOTEC) Pathum Thani Thailand

This study aimed to determine the potential of coffee skin waste (Coffea robusta L) as a superior compost innovation for the growth of pepper-cutting seedlings (Piper nigrum L). This study used an experimental method with a completely randomized design using five treatments and five repeats, variations in the dose of coffee skin waste used P0 (control), P1 (90 g), P2 (135 g), P3 (180 g), and P4 (225 g). The shoot height, number of leaves, number of roots, and length of roots were measured. The results showed that coffee skin waste compost significantly affected shoot height, especially at P1 (90 g), resulting in an average growth height of 7.24 cm. In addition, the highest number of leaves was found at a concentration of P1 (90 g), with an average of two leaves. Although there was no significant effect on the number of roots, the concentration of P1 (90 g) yielded the best results, with an average of 33 root blades, and the best root length was obtained at the concentration of P1 (90 g), with an average of 44.6 cm. Therefore, coffee skin waste significantly influenced shoot height and the number of leaves on pepper-cut seedlings (Piper nigrum L.) in the P1 treatment (90 g).

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Adsorption and ecotoxicology studies with aqueous solution of Cr(VI) ions using adsorbent materials derived from Inga edulis

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Chemosphere 2025年 378卷 144378页

作者： L.D.S., Lima E.P., Fernandes A., Novelli L.P.D., Costa M.D.S., Monteiro M.V.Q., dos Santos J.A., Freitas E.M., Sussuchi - SEnM Laboratory of Corrosion and Nanotechnology - LCNT Graduate Program in Chemistry Department of Chemistry Federal University of Sergipe Av. Marcelo Deda Chagas 304 Rosa Elze Sergipe São Cristóvão49107-230 Brazil Aquatic Ecosystems Study Group - GEEA Department of Environmental Engineering Federal University of Sergipe Av. Marcelo Deda Chagas 304 Rosa Elze Sergipe São Cristóvão49107-230 Brazil Laboratory of Nanotechnology and Functional Materials - LANanMF Department of Chemistry Federal University of Sergipe Av. Marcelo Deda Chagas 304 Rosa Elze Sergipe São Cristóvão49107-230 Brazil Environmental Technology Laboratory - LATAM Department of Environmental Engineering Federal University of Sergipe Av. Marcelo Deda Chagas 304 Rosa Elze Sergipe São Cristóvão49107-230 Brazil

Adsorbents derived from the bark of Inga edulis were developed for the removal of Cr(VI) ions. Chemical activation with sulfuric acid led to significant changes in the physicochemical properties of the biomass. The adsorbent materials denoted IB (inga biomass) and AIB (activated inga biomass) showed higher removal efficiencies at pH 2.0 and dosages of 1.0 and 0.25 g L−1, respectively. The adsorption kinetics could be fitted using the Elovich model, indicating that the adsorption occurred on heterogeneous surfaces. The maximum adsorption capacities were 46.0 mg g−1 for IB and 356.6 mg g−1 for AIB, with behaviors that could be described by the Langmuir (monolayer) and Freundlich (multilayer) models, respectively. XPS analyses confirmed the reduction of Cr(VI) to Cr(III), due to interactions with oxygenated functional groups. Thermodynamic evaluation indicated that the adsorption was spontaneous, with exothermic character for IB and endothermic character for AIB. Ecotoxicological assays using Daphnia similis showed that a Cr(VI) concentration of 4.34 μg L−1 caused 50.0 % immobility, while adsorption by the materials eliminated the toxicity, demonstrating the effectiveness of the adsorbents in reducing environmental impacts. Additionally, an electrode derived from the adsorption of Cr(VI) on AIB, denoted CPEAIB-Cr-ads-active, presented good performance in the hydrogen evolution reaction (HER), with high current density and low overpotential. The structure of the electrode, with high surface area and the presence of pores and cavities, was favorable for electrochemical catalysis, evidencing its potential for use in applications concerning renewable energy and environmental detoxification. © 2025 Elsevier Ltd

关键词： Environmental monitoring

Effect of calcination temperature on hydrotalcite for organic dye waste elimination from aqueous solution via adsorption

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AIP Conference Proceedings 2023年第1期2540卷

作者： Lina Mahardiani Risma Arinda Finly Khoirunnisa Arabbani 1Chemistry Education Study Program Faculty of Teacher Training and Education Sebelas Maret University Surakarta Indonesia 2Material Science and Engineering Program National Taipei University of Technology Taipei Taiwan

Hydrotalcite as one of the advanced materials is applied in wide range of aspects like adsorption. This research aims to study the capability of the hydrotalcite like compound Mg-Al-CO3 material to remove the organic dye, namely, congo red and methylene blue in water through adsorption. Prior to the adsorption process, hydrotalcite like compound Mg-Al-CO3 was calcined within temperature ranges of 300-750°C. The adsorption process was carried out by batch method with variations in calcination temperature of the hydrotalcite material and variations in contacting time. The performance effectiveness of hydrotalcite was evaluated through the adsorption percentages based on the absorbance measurement data using the UV-Vis instrument. The results showed excellent hydrotalcite's capability of removing both organic dyes. Hydrotalcite calcined at 600°C was able to remove 94% of the organic dyes within 30 minutes.

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Exploring non-conventional techniques in biodiesel production: A brief review

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Molecular Catalysis 2025年 584卷

作者： Didik Krisdiyanto Karna Wijaya Akhmad Syoufian Aldino Javier Saviola Riska Astin Fitria Puji Wahyuningsih Bayu Wiyantoko Remi Ayu Pratika Won-Chun Oh J.V. Shanmukha Kumar Department of Chemistry Faculty of Mathematics and Natural Sciences Universitas Gadjah Mada Yogyakarta 55281 Indonesia Chemistry Study Program Faculty of Science and Technology UIN Sunan Kalijaga Yogyakarta 55281 Indonesia Department of Chemistry Faculty of Engineering Universitas Samudra Aceh 24354 Indonesia Department of Chemistry Faculty of Mathematics and Natural Sciences Universitas Islam Indonesia Yogyakarta 55584 Indonesia Study Program of Chemistry Faculty of Mathematics and Natural Sciences Universitas Palangka Raya Palangka Raya 73111 Indonesia Department of Advanced Materials and Engineering Hanseo University Seosan-si Chungcheongnam-do 31962 Republic of Korea Department of Chemistry Koneru Lakshmaiah Education Foundation Vaddeswaram Guntur Andhra Pradesh 522502 India

Biodiesel represents a renewable and sustainable alternative to fossil fuels, offering notable environmental advantages such as reduced greenhouse gas emissions, lower toxicity, and biodegradability. However, its conventional production, primarily via the transesterification of vegetable oils or animal fats, faces considerable challenges, including high production costs, limited feedstock availability, energy intensive processes, and competition with food resources, all of which impede its large-scale implementation. This review critically evaluates the potential of emerging non-conventional feedstocks and production methods to address these limitations and enhance the overall feasibility of biodiesel. Alternative feedstocks such as waste cooking oil, lignocellulosic biomass, and microalgae are highlighted for their abundance, cost effectiveness, and minimal competition with food production, with microalgae particularly notable due to their rapid growth and high lipid content, making them a promising third generation source. Concurrently, advanced production technologies including enzymatic catalysis, supercritical fluids, microwave-assisted, ultrasound-assisted, and photothermal transesterification are examined for their capacity to increase reaction efficiency, reduce energy consumption, and process low quality feedstocks. Noteworthy advancements, such as microwave assisted systems that reduce reaction time by over 99 % and achieve biodiesel yields exceeding 96 % under ambient conditions, underscore the potential for industrial scale application. By comparing conventional and non-conventional approaches, this review underscores the pivotal role of innovation in overcoming technical and economic barriers, offering a comprehensive synthesis of recent developments to inform future research, industrial practices, and policy initiatives aimed at fostering a more sustainable biodiesel industry.

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Effect of Different Types of Preparation Methods on the Properties of Tempo-Oxidized Bacterial Cellulose Powder Film

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SSRN 2023年

作者： Rahmadiawan, Dieter Abral, Hairul Shi, Shih-Chen Ilham, Mohammad Khalid Sugiarti, Eni Muslimin, Ahmad Novi Ilyas, R.A. Zainul, Rahadian Department of Mechanical Engineering Universitas Negeri Padang Sumatera Barat Padang25173 Indonesia Tainan Taiwan Laboratory of Nanoscience and Technology Department of Mechanical Engineering Andalas University Sumatera Barat Padang25163 Indonesia Research Collaboration Center for Nanocellulose BRIN-Andalas University Padang25163 Indonesia Serpong Indonesia Weaponry Technology Study Program Defense Technology Faculty Indonesia Defense University Sentul Bogor16810 Indonesia School of Chemical and Energy Engineering Faculty of Engineering Universiti Teknologi Malaysia Johor Bahru81310 Malaysia Department of Chemistry Faculty of Mathematics and Natural Science Universitas Negeri Padang West Sumatera 25171 Indonesia

The preparation method of cellulose films plays a vital role in their properties. This work aims to characterize 2, 2, 6, 6-tetramethylpiperidine-1-oxyl (TEMPO)-oxidized bacterial cellulose powder (TOBCP) films prepared with three different methods (casting, boiling-casting, and boiling-vacuum). It is found that film by casting (CT film) shows the best electrical properties. A light-emitting diode (LED) in a direct current circuit connected to the CT film glows the most brightly. However, this film had lower tensile strength and thermal stability than films from boiling and boiling-vacuum techniques. The boiling-vacuum film presents the most compact fiber structure and the highest tensile and thermal properties. This film also shows the lowest electrical properties and the dimmest LED light. These results demonstrate the TOBCP properties from different methods that can be used to prepare film with desirable properties. © 2023, The Authors. All rights reserved.

关键词： Light emitting diodes

Reclaiming Resources from Disposable Diapers: Closing the Loop with Hydrothermal Carbonization and Water Reuse

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SSRN 2024年

作者： Djaenudin Putra, Herlian Eriska Muchlis Wresta, Arini Indriati, Lies Sintawardani, Neni Fitria, Novi Hamidah, Umi Purwanta, Wahyu Permana, Dani Setiawan, Arief Ameir Rahman Putri, Ganiz Amaranthi Nilawati, Dewi Widyarani KST Dr. Samaun Samadikun Jalan Sangkuriang No. 21 D Bandung40135 Indonesia Collaborative Research Center for Zero Waste and Sustainability Jl. Kalijudan No. 37 Surabaya60114 Indonesia Department of Chemistry Sekolah Tinggi Analis Bakti Asih Bandung40192 Indonesia Jalan Raya Jakarta-Bogor KM. 46 Cibinong Bogor16911 Indonesia Selatan Tangerang15314 Indonesia Environmental Engineering Study Program Faculty of Civil Engineering and Planning Institut Teknologi Nasional Jalan P. H. H. Mustofa No. 23 Bandung40124 Indonesia

Disposable diapers have become an overwhelming component of municipal waste streams, exemplified by Bandung's staggering daily influx of approximately 1,451,024 diapers into landfills in 2021. Hydrothermal carbonization (HTC) emerges as a potential solution for the valorization of this problematic waste, transforming it into hydrochar, a key ingredient for environmentally-conscious briquettes. However, HTC's reliance on substantial water resources underscores the urgent need for efficiency strategies. This study investigates water recirculation as a strategy to promote resource conservation within HTC while processing disposable diapers. Key process parameters—temperature (200–250 °C), residence time (15–45 minutes), and single-pass recirculation—were systematically varied to assess their impact on hydrochar characteristics. Results demonstrate that higher temperatures, longer residence times, and recirculation can enhance hydrochar heating value and energy densification ratio, albeit with yield and energy yield trade-offs. The highest values for yield (20.88%), calorific value (8,247.57 cal/g), energy densification ratio (1.359), and energy yield (25.08%) were obtained under specific conditions. © 2024, The Authors. All rights reserved.

关键词： Water conservation