Current Research in Green and Sustainable Chemistry最新文献

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Comparative catalytic efficacy of cost-effective MIL-101(Cr) based PET waste for biodiesel production 基于 PET 废料的成本效益型 MIL-101(Cr)在生物柴油生产中的催化功效比较
Current Research in Green and Sustainable Chemistry Pub Date : 2024-01-01 Epub Date: 2024-03-03 DOI: 10.1016/j.crgsc.2024.100401
Ahmed S. Abou-Elyazed , Amira K.F. Shaban , Ahmed I. Osman , Lobna A. Heikal , Hamdy F.M. Mohamed , Walid M.I. Hassan , Ahmed M. El-Nahas , Basem E. Keshta , Asmaa S. Hamouda
{"title":"Comparative catalytic efficacy of cost-effective MIL-101(Cr) based PET waste for biodiesel production","authors":"Ahmed S. Abou-Elyazed ,&nbsp;Amira K.F. Shaban ,&nbsp;Ahmed I. Osman ,&nbsp;Lobna A. Heikal ,&nbsp;Hamdy F.M. Mohamed ,&nbsp;Walid M.I. Hassan ,&nbsp;Ahmed M. El-Nahas ,&nbsp;Basem E. Keshta ,&nbsp;Asmaa S. Hamouda","doi":"10.1016/j.crgsc.2024.100401","DOIUrl":"10.1016/j.crgsc.2024.100401","url":null,"abstract":"<div><p>Polyethylene terephthalate (PET) use has increased, causing more PET trash and environmental and health issues. Disposal and burning alone cannot solve this problem. Thus, PET recovery methods with low byproducts are the priority. The recycling rate is still below 30%, so different cleaning methods are being investigated. Therefore, studies have focused on extracting terephthalic acid from PET bottles for MOF synthesis to reduce their cost of production. Herein, MIL-101(Cr) was synthesized from PET bottles and used as a solid catalyst for oleic acid esterification with methanol to produce methyl oleate (biodiesel), an alternative energy source to fossil fuels—the highest biodiesel yields at 1:39 molar ratio of oleic acid to MeOH, 6 wt% loading, 65 °C, and 4 h reactions time were attained at 86.9 and 80% for MIL-101(Cr) on a pristine and scrap basis, respectively. The kinetic study revealed that activation energies were 25.27 kJ/mol and 28.3 kJ/mol for original and waste-derived MIL-101(Cr). The waste-derived MIL-101(Cr) was reused three times while five-time cycles for the original MIL-101(Cr).</p></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"8 ","pages":"Article 100401"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666086524000067/pdfft?md5=cacff971fd0fefc9fc756ea60185b573&pid=1-s2.0-S2666086524000067-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140036084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Characterization and evaluation of torrefied sugarcane bagasse to improve the fuel properties 焦化甘蔗渣的特性和评估,以改善燃料性能
Current Research in Green and Sustainable Chemistry Pub Date : 2024-01-01 Epub Date: 2023-12-31 DOI: 10.1016/j.crgsc.2023.100395
Muktar Abdu Kalifa, Nigus Gabbiye Habtu, Addis Lemessa Jembere, Melkamu Birlie Genet
{"title":"Characterization and evaluation of torrefied sugarcane bagasse to improve the fuel properties","authors":"Muktar Abdu Kalifa,&nbsp;Nigus Gabbiye Habtu,&nbsp;Addis Lemessa Jembere,&nbsp;Melkamu Birlie Genet","doi":"10.1016/j.crgsc.2023.100395","DOIUrl":"10.1016/j.crgsc.2023.100395","url":null,"abstract":"<div><p>Torrefaction is a promising method of treatment with a prospect toward Physco-chemical improvement and thermal upgrading of biomass. In the present study, the torrefaction of sugarcane bagasse in both dry and chemical treatment in comparison with the physical, chemical, and thermal properties of raw bagasse was investigated. Thermochemical torrefaction was carried out by pretreatment of raw bagasse with dilute sulfuric acid. The torrefaction temperature was carried out at a carried temperature (220–280 °C) and a torrefaction period (30–120 min) in a packed bed reactor under an inert environment, whereas dry torrefaction was performed using the same treatment without the addition of a chemical to the raw bagasse. Chars produced by chemical torrefaction were found with improved properties of heating value, energy, and bulk density at 280 °C and 120 min. Increasing temperature resulting in high fixed carbon content apparently decreases moisture content and volatile matter. The mass yield and energy yield were found to be decreased with temperature and time. The carbon content of torrefied bagasse was increased with temperature and time, whereas, hydrogen and oxygen content decreased due to the devolatilization reactions. It was able to upgrade HHV from 16.05 to 20.34 MJ/Kg in dry and 22.29 MJ/Kg in chemical torrefaction.</p></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"8 ","pages":"Article 100395"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666086523000413/pdfft?md5=6c49a725898097473a07f5d2f9067dd8&pid=1-s2.0-S2666086523000413-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139071470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optimization of green microwave-assisted extraction of essential oil from lemon (Citrus limon) leaves: Bioactive, antioxidant and antimicrobial potential 微波辅助绿色提取柠檬(Citrus limon)叶精油的优化方法:生物活性、抗氧化和抗菌潜力
Current Research in Green and Sustainable Chemistry Pub Date : 2024-01-01 Epub Date: 2024-05-08 DOI: 10.1016/j.crgsc.2024.100413
Mst. Sarmina Yeasmin , Md. Jasim Uddin , Subarna Sandhani Dey , Jaytirmoy Barmon , Nayeema Talukder Ema , G.M. Masud Rana , Md. Mahmudur Rahman , Mohajira Begum , Lailatul Ferdousi , Supriya Ahmed , Md. Salim Khan , Mst. Hajera Khatun , Ali Ahsan Muzahid
{"title":"Optimization of green microwave-assisted extraction of essential oil from lemon (Citrus limon) leaves: Bioactive, antioxidant and antimicrobial potential","authors":"Mst. Sarmina Yeasmin ,&nbsp;Md. Jasim Uddin ,&nbsp;Subarna Sandhani Dey ,&nbsp;Jaytirmoy Barmon ,&nbsp;Nayeema Talukder Ema ,&nbsp;G.M. Masud Rana ,&nbsp;Md. Mahmudur Rahman ,&nbsp;Mohajira Begum ,&nbsp;Lailatul Ferdousi ,&nbsp;Supriya Ahmed ,&nbsp;Md. Salim Khan ,&nbsp;Mst. Hajera Khatun ,&nbsp;Ali Ahsan Muzahid","doi":"10.1016/j.crgsc.2024.100413","DOIUrl":"https://doi.org/10.1016/j.crgsc.2024.100413","url":null,"abstract":"<div><p>This research delves into the analysis of essential oil derived from <em>Citrus limon</em> leaves cultivated in the northern region of Bangladesh, focusing on their potential attributes. The essential oil was extracted employing a microwave-assisted gravity station without using solvent. Optimization was carried out in terms of time, temperature and power as a function of oil yield. The study revealed the highest oil yield of 2.5 % after 50 min at 110 °C, maintaining a microwave power of 300 watt. Twenty-four (24) phyto-components were identified by Gas Chromatogram- Mass Spectrometer (GC-MS) where <span>d</span>-Limonene (34.10660 %) was dominant compound. The 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay was used to assess the antioxidant activity of essential oil. Notably, essential oil displayed superior DPPH radical scavenging activity (IC<sub>50</sub> 8.57 ppm) compared to butylated hydroxytoluene (BHT) (IC<sub>50</sub> 10.63 ppm), a common antioxidant standard. Furthermore, a variety of harmful microorganisms were used to evaluate the antimicrobial efficacy. The extracted essential oil exhibited the strongest antimicrobial effectiveness against bacteria <em>Staphylococcus aureus</em> (ZOI-27.50 mm, MIC-7.8 μL/mL) and the fungi <em>Candida albicans</em> (ZOI-32.83 mm, MIC-1.95 μL/mL). These findings demonstrate the <em>Citrus limon</em> leaves essential oil contains bioactive components with strong antioxidant and antimicrobial properties. The extracted essential oil holds significant potential for applications in the foods, pharmaceuticals and cosmetic industries.</p></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"8 ","pages":"Article 100413"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666086524000183/pdfft?md5=e5bee2da1af3b64c9cb5e38b3d4b9eec&pid=1-s2.0-S2666086524000183-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140905706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fe-doped TiO2/PVDF-HFP electrospun membranes for tetracycline photocatalytic degradation under visible light 用于可见光下四环素光催化降解的掺铁 TiO2/PVDF-HFP 电纺丝膜
Current Research in Green and Sustainable Chemistry Pub Date : 2024-01-01 Epub Date: 2024-08-05 DOI: 10.1016/j.crgsc.2024.100424
Ghadeer Jalloul, Aya Hachem, Mohammad H. Hashem, Ahmad B. Albadarin, Mohammad N. Ahmad
{"title":"Fe-doped TiO2/PVDF-HFP electrospun membranes for tetracycline photocatalytic degradation under visible light","authors":"Ghadeer Jalloul,&nbsp;Aya Hachem,&nbsp;Mohammad H. Hashem,&nbsp;Ahmad B. Albadarin,&nbsp;Mohammad N. Ahmad","doi":"10.1016/j.crgsc.2024.100424","DOIUrl":"10.1016/j.crgsc.2024.100424","url":null,"abstract":"<div><p>Heterogeneous photocatalysis operated under visible light is considered an efficient and ecofriendly method to remove pharmaceuticals from water streams. However, the recovery of the nano-sized catalyst particles limits this technology to small-scale applications. In this study, we prepared Fe-doped P25 TiO<sub>2</sub> photocatalysts and immobilized them over PVDF-HFP electrospun membranes for the photocatalytic degradation of Tetracycline antibiotic under visible light. To ensure uniform distribution of the nanoparticles on the fibers, the electrospinning voltage and the weight percentage of TiO<sub>2</sub> were varied, and two preparation methods were applied to disperse the catalyst in the polymeric solution. In order to maximize the visible light exposure of the membranes, 3D printed membrane holders with square and circular shapes were designed to immerse the membrane in Tetracycline solution. The results showed that immobilizing P25 catalysts on the fibers of the membranes limited their visible light absorption when the light source was assembled on the top of the aqueous reaction medium. This occurred due to the membrane's opacity limited light penetration, resulting in uneven irradiation throughout its depth. Based on this, a new photocatalytic reactor design was proposed with immersed light illumination source to reduce the distance between the membrane and the light source for improved activation of the P25 particles. In this design, a 3D-printed vertical membrane holder was also included to accommodate a larger membrane surface area and therefore minimize the required spatial area for large industrial applications.</p></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"9 ","pages":"Article 100424"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666086524000298/pdfft?md5=2fb74c08885ee52bd8896686264d12ac&pid=1-s2.0-S2666086524000298-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141953350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Engineering stable Ti3+ defects in a titanium dioxide matrix by wet bead-milling: Visible-light assisted efficient photocatalytic hydrogen production from water 用湿球磨法在二氧化钛基体中制造稳定的Ti3+缺陷:可见光辅助下的高效光催化水制氢
Current Research in Green and Sustainable Chemistry Pub Date : 2024-01-01 Epub Date: 2024-08-05 DOI: 10.1016/j.crgsc.2024.100423
Shoichi Somekawa , Sayaka Yanagida , Naoki Tachibana , Hiroaki Imai , Shigeru Nakazawa
{"title":"Engineering stable Ti3+ defects in a titanium dioxide matrix by wet bead-milling: Visible-light assisted efficient photocatalytic hydrogen production from water","authors":"Shoichi Somekawa ,&nbsp;Sayaka Yanagida ,&nbsp;Naoki Tachibana ,&nbsp;Hiroaki Imai ,&nbsp;Shigeru Nakazawa","doi":"10.1016/j.crgsc.2024.100423","DOIUrl":"10.1016/j.crgsc.2024.100423","url":null,"abstract":"<div><div>Solar-driven hydrogen production technologies are of increasing interest. In this work, Ti<sup>3+</sup> was incorporated into titanium dioxide via wet bead-milling, resulting in enhanced photocatalytic activity under both UV and visible light irradiation. The broad optical absorption obtained from the presence of Ti<sup>3+</sup> ranged from the visible to near-infrared regions of the spectrum (specifically from 400 to over 900 nm) and this absorption could be enhanced by increasing the diameter of the beads used for wet milling. The hydrogen production rate from water in response to ultraviolet (UV)-visible light with ethanol as a sacrificial reagent was also found to vary depending on the bead diameter. Producing the optimal level of Ti<sup>3+</sup> incorporation in the titanium oxide matrix while maintaining a high specific surface area increased the extent of hydrogen production during water decomposition. A sample prepared using 0.3 mm diameter beads exhibited the highest hydrogen production rate of 145 μmol h<sup>−1</sup> g<sup>−1</sup>, which was 15 times that obtained from commercially available anatase-type titanium dioxide having higher specific surface area. The hydrogen production rate under only UV light (&lt;400 nm) was decreased to one-ninth of that obtained using both UV and visible light simultaneously. No hydrogen gas was generated in trials using only visible light (&gt;410 nm). These results indicate that visible light significantly promoted the photocatalytic reaction when both UV and visible light were irradiated simultaneously.</div></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"9 ","pages":"Article 100423"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143156171","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Challenges in the mechanical recycling and upcycling of mixed postconsumer recovered plastics (PCR): A review 消费后混合回收塑料 (PCR) 的机械再循环和升级再循环所面临的挑战:综述
Current Research in Green and Sustainable Chemistry Pub Date : 2024-01-01 Epub Date: 2024-03-13 DOI: 10.1016/j.crgsc.2024.100407
Tanyaradzwa S. Muzata, Laurent M. Matuana, Muhammad Rabnawaz
{"title":"Challenges in the mechanical recycling and upcycling of mixed postconsumer recovered plastics (PCR): A review","authors":"Tanyaradzwa S. Muzata,&nbsp;Laurent M. Matuana,&nbsp;Muhammad Rabnawaz","doi":"10.1016/j.crgsc.2024.100407","DOIUrl":"10.1016/j.crgsc.2024.100407","url":null,"abstract":"<div><p>The presence of chemically different and compositionally varying plastics in mixed postconsumer recovered plastic (PCR) presents daunting barriers to recycling and upcycling efforts. This review systematically outlines how different processing techniques and characterization methods can be implemented to improve PCR's mechanical recycling and upcycling processes. The review further addresses the recycling challenges in the processing of mixed plastics from PCR and how their mechanical properties can be enhanced by making use of different types of compatibilizers such as copolymers, Janus nanoparticles as well as different approaches such as solid-state pulverization and microfibrillarization. In addition, the state-of-the-art applications of recycled plastics usage in automotive and construction are reviewed.</p></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"8 ","pages":"Article 100407"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666086524000122/pdfft?md5=2238b22fe35d894f788679e4ba511d40&pid=1-s2.0-S2666086524000122-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140147882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optimisation of supercritical fluid extraction of orange (Citrus sinenis L.) peel essential oil and its physicochemical properties 优化橙(Citrus sinenis L.)皮精油的超临界流体萃取及其理化特性
Current Research in Green and Sustainable Chemistry Pub Date : 2024-01-01 Epub Date: 2024-03-26 DOI: 10.1016/j.crgsc.2024.100410
Wen Xia Ling Felicia , Kobun Rovina , Nasir Md Nur Aqilah , Abdul Aziz Jaziri
{"title":"Optimisation of supercritical fluid extraction of orange (Citrus sinenis L.) peel essential oil and its physicochemical properties","authors":"Wen Xia Ling Felicia ,&nbsp;Kobun Rovina ,&nbsp;Nasir Md Nur Aqilah ,&nbsp;Abdul Aziz Jaziri","doi":"10.1016/j.crgsc.2024.100410","DOIUrl":"https://doi.org/10.1016/j.crgsc.2024.100410","url":null,"abstract":"<div><p>In this study, the choice of supercritical fluid extraction as a renewable alternative for extracting orange peel essential oil (OPEO) was motivated by concerns about sustainability with conventional solvent extraction methods. The physical and chemical characteristics of OPEO were examined to assess its potential as a sustainable resource. The extraction process was optimised, and the ideal conditions determined were 317.51 min of extraction time at 74.85 °C with a solvent-to-sample ratio of 4. Analysis of the extracted OPEO revealed significant values for saponification (121.67 mg KOH/g), acid (4.13 mg KOH/g), ester (117.54 mg KOH/g), and free fatty acid (1.56 mg KOH/g) content, demonstrating its composition. Notably, key ingredients such as Limonene (43.96%), α-pinene (15.60%), β-myrcene (10.21%), <strong><em>γ</em></strong>-terpinene (5.00%), and α-terpineol (4.15%) were found in high proportions according to chemical composition analysis. Furthermore, OPEO exhibited excellent antioxidant properties with an IC50 value of 7.73 ± 2.00 mg/mL and displayed notable antimicrobial activity against various microorganisms, including <em>P. aeruginosa</em> (17.7 ± 0.6 mm), <em>E. coli</em> (11.0 ± 0.0 mm), <em>K. pneumoniae</em> (10.7 ± 0.6 mm), and <em>S. aureus</em> (10.3 ± 0.6 mm). These findings have significant implications for the flavor and fragrance sector, as well as for the food preservation industry.</p></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"8 ","pages":"Article 100410"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666086524000158/pdfft?md5=54b15db8be7e5d93a78a235b4642bbd2&pid=1-s2.0-S2666086524000158-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140321040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Properties and photocatalytic applications of black TiO2 produced by thermal or plasma hydrogenation 热氢化或等离子氢化法制备的黑色二氧化钛的特性和光催化应用
Current Research in Green and Sustainable Chemistry Pub Date : 2024-01-01 Epub Date: 2024-05-31 DOI: 10.1016/j.crgsc.2024.100415
Manjunath Veeranna Shinnur, MariaPia Pedeferri, Maria Vittoria Diamanti
{"title":"Properties and photocatalytic applications of black TiO2 produced by thermal or plasma hydrogenation","authors":"Manjunath Veeranna Shinnur,&nbsp;MariaPia Pedeferri,&nbsp;Maria Vittoria Diamanti","doi":"10.1016/j.crgsc.2024.100415","DOIUrl":"https://doi.org/10.1016/j.crgsc.2024.100415","url":null,"abstract":"<div><p>TiO<sub>2</sub> nanomaterial photocatalysts for energy and environmental applications have attracted the interest of researchers in recent decades. The broad bandgap (3–3.2 eV), which limits the quantity of light absorption, and the relatively high charge-carrier recombination, which limits photocatalytic activity, are the key bottlenecks. The discovery of black TiO<sub>2</sub> in 2011 sparked global research attention and renewed optimism for solving this challenge. The presence of defects such as Ti<sup>3+</sup> species and oxygen vacancies at the surface of black TiO<sub>2</sub> nanostructures – so called due to the color assumed by the oxide following a reduction process - is responsible for enhancing the optical absorption of UV to visible light. This review focuses on recent advancements in the development of black TiO<sub>2</sub> nanomaterials, including description of the synthesis processes, focused on plasma and thermal methods to convert TiO<sub>2</sub> to black TiO<sub>2</sub>, discussion of black TiO<sub>2</sub> properties, and diverse applications of black TiO<sub>2</sub>, and concludes by addressing some essential concerns that must be tackled to unleash the desired future developments, particularly for solar energy production and pollutants decomposition.</p></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"8 ","pages":"Article 100415"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666086524000201/pdfft?md5=43c463a86c552ab9c7e27069df7bc3e2&pid=1-s2.0-S2666086524000201-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141241082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The impact of thermal treatment parameters on the preservation of carbon fiber mechanical properties after reclamation 热处理参数对再生后碳纤维机械性能保持的影响
Current Research in Green and Sustainable Chemistry Pub Date : 2024-01-01 Epub Date: 2024-10-22 DOI: 10.1016/j.crgsc.2024.100431
Marina Corvo Alguacil , Kentaro Umeki , Sergejs Gaidukovs , Anda Barkāne , Shujie You , Roberts Joffe
{"title":"The impact of thermal treatment parameters on the preservation of carbon fiber mechanical properties after reclamation","authors":"Marina Corvo Alguacil ,&nbsp;Kentaro Umeki ,&nbsp;Sergejs Gaidukovs ,&nbsp;Anda Barkāne ,&nbsp;Shujie You ,&nbsp;Roberts Joffe","doi":"10.1016/j.crgsc.2024.100431","DOIUrl":"10.1016/j.crgsc.2024.100431","url":null,"abstract":"<div><div>Carbon fiber, despite its exceptional properties, remains underutilized due to monetary and environmental concerns. Concurrently, the imminent challenge associated with rising quantities of End-of-Life CFRP (carbon fiber reinforced polymer) demands the further development of recycling strategies. This study focuses on optimizing the recycling process parameters of pyrolysis and oxidation thermal treatment to maximize the retention of mechanical properties in the recycled fibers in the shortest process time. To assess the result of the pyrolysis, single fiber tensile tests were executed to measure strength and stiffness. Additionally, microscopy and spectroscopy studies were carried out to evaluate fiber geometry as well as surface quality. At the laboratory scale, experiments demonstrated that the combination of pyrolysis and oxidation yields clean, reusable fibers with mechanical properties suitable for secondary applications. The influence of various treatment parameters on the strength and stiffness of the recycled fibers was explored, establishing a clear correlation. The outcome is a set of optimized parameters that contribute to mechanical property retention, including a novel recycling method that allows for reduced processing times, as short as 10 min. This work paves the way for a more eco-friendly and cost-effective approach to harnessing the potential of carbon fiber in a wide range of applications while mitigating environmental concerns associated with landfill disposal.</div></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"9 ","pages":"Article 100431"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142529672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sustainable ambient pressure-dried silica aerogel from waste glass 从废玻璃中提取可持续的常压干燥二氧化硅气凝胶
Current Research in Green and Sustainable Chemistry Pub Date : 2024-01-01 Epub Date: 2024-08-08 DOI: 10.1016/j.crgsc.2024.100425
M. Borzova, K. Schollbach, F. Gauvin, H.J.H. Brouwers
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