Current Research in Green and Sustainable Chemistry最新文献

{"title":"Enhancing sustainable silk Textiles: Optimization of teak leaf extract dyeing and antibacterial efficacy","authors":"Nattadon Rungruangkitkrai ,&nbsp;Rattanaphol Mongkholrattanasit ,&nbsp;Peeraya Ounu ,&nbsp;Nawarat Chartvivatpornchai ,&nbsp;Jirachaya Boonyarit ,&nbsp;Kamlai Laohaphatanaleart ,&nbsp;Rungsima Chollakup","doi":"10.1016/j.crgsc.2025.100457","DOIUrl":"10.1016/j.crgsc.2025.100457","url":null,"abstract":"<div><div>This study introduces an environmentally friendly method for dyeing silk using pigments extracted from young teak leaves (<em>Tectona grandis</em> L.), offering a sustainable solution to reduce pollution from synthetic dyes while repurposing agricultural waste. Ethanol (95 %) extraction of teak leaves showed a rich in polyphenols and quinonoid compounds, which yielded a reddish-brown pigment suitable for dyeing. Key dyeing conditions, including temperature (30–100 °C), duration (10–60 min), and pH (3–11), were optimized to maximize color absorption and uniformity. Color performance was evaluated through spectrophotometry (L∗, a∗, b∗ values) and K/S measurements. Three mordants including alum (aluminum potassium sulfate), ferrous sulfate, and stannous chloride were tested using pre-, meta-, and post-mordanting techniques. Pre-mordanting with ferrous sulfate delivered the darkest shades and highest color intensity, along with excellent wash and light fastness (rated ≥4 on the Grey scale). FTIR spectroscopy revealed stable dye-mordant complexes formed through molecular coordination. The dyed silk exhibited mild antibacterial properties against <em>Staphylococcus aureus</em> and <em>Escherichia coli</em> in agar well diffusion tests, though inhibition zones were modest (&lt;0.20 cm), likely due to residual bioactive compounds. These results position teak leaf extract as a multifunctional natural dye, combining aesthetic, ecological, and hygienic advantages. By aligning with circular economy principles, this approach presents a viable pathway for sustainable textile production. Nonetheless, future research should focus on optimizing extraction methods, boosting antimicrobial efficacy, and scaling the process for industrial applications.</div></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"10 ","pages":"Article 100457"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144070935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimization, derivatization and characterization of mango waste cellulose (Mangifera indica) and its use for the production of composite nanofibers","authors":"Amet Ovando-Roblero ,&nbsp;María Celina Luján-Hidalgo ,&nbsp;Rocío Meza-Gordillo ,&nbsp;Rosa Isela Cruz-Rodríguez ,&nbsp;Zaira Domínguez ,&nbsp;Ricardo Vera-Graziano ,&nbsp;Elisa Miranda Buendía ,&nbsp;Karla K. Gómez-Lizárraga","doi":"10.1016/j.crgsc.2025.100453","DOIUrl":"10.1016/j.crgsc.2025.100453","url":null,"abstract":"","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"10 ","pages":"Article 100453"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143828922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Innovative membrane engineering: Polyphenylsulfone/silver-doped zinc oxide for high-efficiency protein rejection","authors":"H.R. Panchami ,&nbsp;Arun M. Isloor ,&nbsp;A.M. Vijesh ,&nbsp;Ramin Farnood","doi":"10.1016/j.crgsc.2025.100460","DOIUrl":"10.1016/j.crgsc.2025.100460","url":null,"abstract":"<div><div>In the present study, the nanocomposite polyphenylsulfone (PPSU) flat sheet membranes containing silver-doped zinc oxide (Ag–ZnO) was synthesized by the dry/wet phase inversion technique. Spectroscopic characterizations confirmed the nanoparticle incorporation into the membrane matrix. Microscopic characterization validates that, Ag–ZnO nanoparticles were distributed uniformly throughout the membrane. The Ag–ZnO modified PPSU membranes were evaluated for their protein rejection performances against BSA, egg albumin and pepsin from their aqueous solutions. PPSU composite membranes with 1.5wt% Ag–ZnO nanoparticles showed enhanced pure water permeability and protein rejection properties compared to the neat membrane. Increased permeability, antifouling nature and rejection of proteins were attributed to the cumulative effects of adding Ag–ZnO nanoparticle into the membrane. The highest protein rejection was exhibited by the membrane AZM-2 for BSA, egg albumin and pepsin were 92.1 %, 86.8 % and 73.4 %, respectively.</div></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"10 ","pages":"Article 100460"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144205524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Retraction notice to “Recent advances in polymer hydrogel nanoarchitectures and applications\" [Current Research in Green and Sustainable Chemistry 4 (2021) 100143]","authors":"Christopher Igwe Idumah,&nbsp;Iheoma C. Nwuzor,&nbsp;Raphael Stone Odera","doi":"10.1016/j.crgsc.2025.100479","DOIUrl":"10.1016/j.crgsc.2025.100479","url":null,"abstract":"","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"11 ","pages":"Article 100479"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144886938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Microwave-assisted synthesis of ZSM-5 from blast furnace slag","authors":"Nhlanhla Nyembe ,&nbsp;Yusuf M. Isa","doi":"10.1016/j.crgsc.2025.100455","DOIUrl":"10.1016/j.crgsc.2025.100455","url":null,"abstract":"<div><div>A rapid hydrothermal synthesis method was employed to prepare a novel Zeolite Socony Mobil-5 (ZSM-5) material impregnated with intrinsic metal alloys (Fe₂O₃, MnO, TiO₂, Cr₂O₃, and NiO). Green chemistry was paired with the synthesis method as a sustainable approach to valorize blast furnace slag (BFS) while addressing the growing demand for high-performance zeolites. This study investigated the role of acid-leached BFS as a precursor and explored the advantages of microwave-assisted hydrothermal synthesis over conventional methods. The synthesis temperature and time were varied to explore their effects on the physicochemical, textural, and structural properties of the synthesized ZSM-5 products, with commercial ZSM-5 serving as a reference material for comparison. The favourable synthesis conditions were found to be 180 °C and 13 h, yielding a crystalline ZSM-5 product characterized by well-defined cubic prism shapes with microsized intergrown rectangular crystals. Furthermore, the synthesized ZSM-5 had a mesoporous structure with an average crystallinity of 52.4 % and a low specific surface area (108.4 m²/g) compared to the reference sample (436.4 m²/g). The use of microwave irradiation significantly reduced the synthesis time and energy consumption while preserving the structural integrity of the zeolite framework. Moreover, the synthesis temperature strongly affected the crystal size, while the synthesis time affected the morphology. However, neither the synthesis temperature nor the synthesis time affected the chemical composition of the products. This study highlighted the potential of BFS as a low-cost, sustainable feedstock for zeolite synthesis and the effectiveness of microwave-assisted methods in improving process efficiency. Further work has been proposed to evaluate the potential use of the synthesized ZSM-5 in industrial applications such as catalysis or adsorption processes.</div></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"10 ","pages":"Article 100455"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143870440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"2-Aminopyridine as a recyclable catalyst for metal-free synthesis of pyrano[2,3-d]pyrimidine scaffolds","authors":"Farzaneh Mohamadpour","doi":"10.1016/j.crgsc.2024.100444","DOIUrl":"10.1016/j.crgsc.2024.100444","url":null,"abstract":"<div><div>This study focuses on the synthesis of pyrano[2,3-<em>d</em>]pyrimidine structures through a one-pot process without the use of metals. The method employs Knoevenagel-Michael cyclocondensation and utilizes a low-cost, reusable catalyst, 2-aminopyridine. The synthesis of pyrano[2,3-<em>d</em>]pyrimidine structures is achieved by refluxing in ethanol (EtOH). The process allows for the easy production of compounds in large quantities and requires minimal reaction time. This cost-effective method features safe reaction conditions, avoids the need for column chromatography, facilitates easy mixing, and promotes efficient material use. Furthermore, 2-aminopyridine demonstrated excellent stability, being reusable up to four times without significant degradation. This approach is particularly beneficial for addressing environmental issues and fulfilling industrial demands.</div></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"10 ","pages":"Article 100444"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143168424","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}

{"title":"Natural corrosion inhibitors derived from powder, concentrated extract and tannin of ketapang (Terminalia catappa L.) leaves for iron protection in sodium chloride solutions","authors":"Rondang Tambun ,&nbsp;Azizul Helmi Bin Sofian ,&nbsp;Bode Haryanto ,&nbsp;Vikram Alexander ,&nbsp;Bryan Tuah Prima ,&nbsp;Patricia Rachel Waruwu","doi":"10.1016/j.crgsc.2025.100471","DOIUrl":"10.1016/j.crgsc.2025.100471","url":null,"abstract":"<div><div>Tannin as one of the organic corrosion inhibitors is generally used in the form of pure compounds. This makes the production of tannin inhibitors more complex. The use of tannin inhibitors can be replaced by maintaining the compound in powder or extract form. This study aims to determine the ability of powder, concentrated extract and tannin obtained from ketapang leaves as iron corrosion inhibitors in 3 % sodium chloride (NaCl) solution. The novelty of this study lies in the use of ketapang leaves powder as corrosion inhibitor which has not been previously investigated, as a sustainable and simpler form of corrosion inhibitor to address the challenge. This inhibition process was carried out by considering the amount of inhibitor and the duration of immersion. The addition of 2 % was applied over 2 days, 4 days, 6 days, and 8 days. The corrosion rate of iron plate was calculated using the mass loss method, and then continued with the calculation of the inhibition efficiency. The results obtained on the 8 days showed differences in corrosion rate and inhibition efficiency for each form of inhibitor. The use of ketapang leaves powder gave a corrosion rate of 3.73 mpy and an inhibition efficiency of 84.88 %, the use of concentrated extract gave a corrosion rate of 0.93 mpy and an efficiency of inhibition of 96.22 %, and the use of tannin gave a rate of corrosion of 0.62 mpy and an inhibition efficiency of 97.48 %. Therefore, ketapang leaves can be used in all three form, especially the powder form offering practical that inhibits corrosion of iron.</div></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"11 ","pages":"Article 100471"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144606114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced antibacterial activity of Ocimum sanctum leaf extract mediated hydroxyapatite and hydroxyapatite-iron oxide nanocomposites","authors":"M. Rokonozzaman ,&nbsp;Kishan Nandi Shoudho ,&nbsp;N. Banik ,&nbsp;Mehedi Hasan Pritom ,&nbsp;M. Ariful Haque ,&nbsp;M.K. Alam ,&nbsp;N. Begum ,&nbsp;Shoeb Ahmed ,&nbsp;I.A. Khan ,&nbsp;A.S.M. Al Amin ,&nbsp;M.N.I. Khan","doi":"10.1016/j.crgsc.2024.100439","DOIUrl":"10.1016/j.crgsc.2024.100439","url":null,"abstract":"<div><div>Hydroxyapatite (HA) is frequently used in a variety of biomedical applications especially in orthopedics and dental because of its outstanding bioactivity and biocompatibility. On the other hand, HA lacks inherent antibacterial properties, shows poor mechanical strength, and infection issues are still one of the main causes of implant failure. Consequently, antibacterial HA may be a potential material for HA applications. For any potential uses of modified hydroxyapatite, such as in medicine or environmental protection, magnetite (Fe₃O₄) may be a crucial element because it has good mechanical properties and is preferred in biomedical systems. Moreover, Fe₃O₄ is biocompatible and basically nontoxic to humans. Therefore, the present study aims to find a novel approach that may improve the antibacterial activity of HA and HA-Fe₃O₄ nanocomposites and provide low toxicity to humans. The synthesized HA and HA -Fe₃O₄ nanocomposites were characterized by XRD, FTIR, SEM, EDX, and Zeta potential analyzer. Moreover, antibacterial activity tests confirmed that the utilization of <em>Ocimum sanctum</em> leaf extract as a reaction medium in HA and HA-Fe₃O₄ nanocomposites synthesis improved antibacterial activity against <em>Escherichia coli</em> and <em>Staphylococcus aureus</em><strong>.</strong> This research demonstrates the green synthesis of HA and HA-Fe₃O₄ nanocomposites using <em>Ocimum sanctum</em> leaf extract by hydrothermal method, opening the door for potential applications in biomedical fields.</div></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"10 ","pages":"Article 100439"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143168425","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}

{"title":"Evaluation of Corynocarpus laevigatus extract as a green corrosion retardant for mild steel in acidic media: A combined gravimetric, gasometric and electrochemical methods","authors":"Anthony I. Obike ,&nbsp;K.S. Eze ,&nbsp;Ibrahim Abdel-Rahman ,&nbsp;Alexander I. Ikeuba ,&nbsp;Izuchukwu K. Nwokolo ,&nbsp;Christopher Aghalibe","doi":"10.1016/j.crgsc.2025.100447","DOIUrl":"10.1016/j.crgsc.2025.100447","url":null,"abstract":"<div><div>The corrosion inhibition by the methanolic extract of <em>Corynocarpus laevigatus</em> leaves on mild steel within acidic environments was evaluated utilizing gravimetric, gasometric, and electrochemical methodologies. The findings indicate that the extracts serve as an effective corrosion inhibitor in both H₂SO₄ and HCl aqueous solutions. The extract exhibited optimum inhibition efficiencies of 88.64 %, 71.12 %, and 77.60 % in H₂SO₄, and 88.89 %, 67.96 %, and 85.55 % in HCl, respectively. The inhibition efficiency increased with higher extract concentrations but decreased with increasing temperature and exposure time in both media. Also, the rate of hydrogen evolution increased with rising temperature in both media. Adsorption studies revealed that the inhibitor's average activation energy (<em>Ea</em>) values were 71.23 kJ/mol and 137.59 kJ/mol for H₂SO₄ and HCl media, respectively. The extract followed the Langmuir isotherm model, indicating monolayer adsorption of the phytochemical components onto the mild steel surface. Physical adsorption was dominant in H₂SO₄, as evidenced by decreasing activation energy (<em>Ea</em>) values with increasing temperature. In contrast, chemical adsorption was observed in HCl. The strong adsorption of phytochemicals present in the extract onto the steel surface was identified as the primary mechanism for corrosion inhibition. This study provides valuable insights into the dual adsorption mechanisms of <em>Corynocarpus laevigatus</em> in different acidic media which underscores its potential as a sustainable and effective corrosion inhibitor in acidic environments.</div></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"10 ","pages":"Article 100447"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143529373","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}

{"title":"Computational and experimental evaluation of the corrosion inhibition of magnesium in the presence of acids/Esters in saline solutions","authors":"Alexander I. Ikeuba ,&nbsp;Lubem Aondoakaa ,&nbsp;William Azogor ,&nbsp;Chigoziri C. Njoku ,&nbsp;Brian E. Usibe ,&nbsp;Obinna Echem","doi":"10.1016/j.crgsc.2025.100452","DOIUrl":"10.1016/j.crgsc.2025.100452","url":null,"abstract":"<div><div>Some additive compounds that have been noted to boost the performance of Mg batteries are herein investigated for their corrosion inhibition properties and mechanism of action on the Mg surface. Experimentally, hydrogen evolution tests were carried out in the presence and absence of the additives while molecular level computations were carried out using density functional theory (DFT) and molecular dynamic simulations (MDS) to evaluate the adsorption of the additives. These compounds include; analine, histidine, lysine, proline, and arginine, 1,3 2,4 dibenzylidene-sorbitol (DBS), hydroxyacetic acid, ethanedioate, nitrilotriacetic acid (NTAN) and ethylenediaminetetraacetic acid (EDTA). The additives inhibited the corrosion of Mg at different temperatures and additive concentrations. The compounds showed varying inhibition efficiencies at different concentrations of the additives, however at a concentration of 0.1 mg/L of the additives at 303 K, the trend of the inhibition efficiency is Glyocolate &gt; EDTA &gt; NTAN &gt; DBS &gt; Alanine &gt; Histidine &gt; Lysine &gt; Oxalate &gt; Proline &gt; Arginine. The adsorption of the inhibitors were consistent with the langmuir adsorption isotherm and the values of Gibbs free energy of adsorption calculated indicates that the additives are physisorbed on the metal surface. The activation energy in the presence of the additives was higher than that of the blank solution suggesting an increase in the energy barrier needed to drive the corrosion process in the presence of the inhibitors. The Heat of adsorption values were negative and indicate that the adsorption process is exothermic. DFT calculations on the additives indicate that the molecular composition and bi polar nature of the amino acids have a pronounced effect on their adsorption characteristics in addition to the functional groups present. The molecular dynamics simulations indicated that the organic molecules all interact with the metal surface which was the driving force of the adsorption of the compounds on the metal surface.</div></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"10 ","pages":"Article 100452"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143816242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}