Current Research in Green and Sustainable Chemistry最新文献_第2页

Eco-friendly chromium(VI) cleanup: Guava seed biosorbent performance in equilibrium, kinetic, and thermodynamic studies 生态友好型铬（VI）清理：番石榴种子生物吸附性能的平衡，动力学和热力学研究

Q2 Materials Science

Current Research in Green and Sustainable Chemistry

Pub Date : 2025-01-01 DOI: 10.1016/j.crgsc.2025.100492

A. Hashem, A. Amr, E.S. Abdel-Halim, S. Farag, A.A. Aly

The contamination of water resources by toxic hexavalent chromium (Cr(VI)) poses significant environmental and health risks. This study explores the potential of guava seed powder (GSP), an agricultural byproduct, as a sustainable biosorbent for Cr(VI) removal. Comprehensive characterization using FTIR, SEM-EDX, XRD, and BET analysis revealed GSP's mesoporous structure (98.7 m²/g surface area) and abundant oxygen-containing functional groups (─OH, ─COOH), which facilitate effective Cr(VI) binding. Batch adsorption experiments demonstrated optimal removal (>85 %) at pH 2 and 30 °C, with equilibrium data best described by the Sips isotherm (R² = 0.990), indicating a maximum adsorption capacity of 3.0 mg/g. Kinetic analysis confirmed chemisorption as the dominant mechanism (pseudo-second-order model, R² = 0.985), while thermodynamic studies revealed the process to be exothermic (ΔH° = −8.72 kJ/mol) and spontaneous (ΔG° = −21.62 to −23.32 kJ/mol). The adsorption mechanism involved electrostatic attraction, surface complexation, and pore diffusion. Comparative analysis highlighted GSP's superior performance over other low-cost biosorbents, underscoring its potential as an eco-friendly and cost-effective solution for Cr(VI) remediation. This work not only advances sustainable water treatment but also aligns with circular economy principles by valorizing agricultural waste.

A preliminary cost analysis confirmed the exceptional economic viability of GSP, with production costs estimated at $1.5–3.0 per kg, underscoring its potential as a low-cost and sustainable alternative to commercial adsorbents for large-scale wastewater treatment.

有毒六价铬（Cr(VI)）对水资源的污染构成重大的环境和健康风险。本研究探讨了番石榴籽粉（GSP）作为一种可持续的生物吸附剂去除Cr（VI）的潜力。通过FTIR、SEM-EDX、XRD和BET等综合表征，发现GSP具有介孔结构（98.7 m2/g表面积）和丰富的含氧官能团（─OH、─COOH），有利于Cr（VI）的有效结合。间歇吸附实验表明，在pH 2和30°C条件下，吸附效果最佳（> 85%）， Sips等温线最能描述平衡数据（R2 = 0.990），最大吸附量为3.0 mg/g。动力学分析证实化学吸附是主要机理（拟二阶模型，R2 = 0.985），热力学研究表明该过程为放热过程（ΔH°=−8.72 kJ/mol）和自发过程（ΔG°=−21.62 ~−23.32 kJ/mol）。吸附机理包括静电吸引、表面络合和孔隙扩散。对比分析表明，GSP的性能优于其他低成本的生物吸附剂，强调了其作为Cr（VI）修复的环保和经济解决方案的潜力。这项工作不仅促进了可持续水处理，而且通过对农业废物进行估价，符合循环经济原则。初步成本分析证实了GSP的经济可行性，生产成本估计为每公斤1.5-3.0美元，强调了它作为大规模废水处理商业吸附剂的低成本和可持续替代品的潜力。

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引用次数: 0

Cockle-shell biowaste as a low-cost renewable source for synthesis of calcium acetate monohydrate as a precursor of quasi-amorphous calcium pyrophosphate hydrate 贝壳生物废弃物作为低成本可再生资源合成一水合乙酸钙作为准无定形焦磷酸钙水合物前驱体

Q2 Materials Science

Current Research in Green and Sustainable Chemistry

Pub Date : 2025-01-01 DOI: 10.1016/j.crgsc.2025.100485

Somphob Thompho , Nongnuch Laohavisuti , Chaowared Seangarun , Banjong Boonchom , Pesak Rungrojchaipon , Wimonmat Boonmee , Somkiat Seesanong , Sirichet Punthipayanon

Calcium-rich seashell wastes can be used as renewable materials to prepare value-added compounds. This work proposed an eco-environmental preparation of calcium pyrophosphate by using cockle-shell biowaste as a low-cost renewable calcium source for the first time. Cockle shell was first ground, obtaining calcium carbonate (CaCO₃) powders, which were then used as the renewable material to synthesize calcium acetate monohydrate (Ca(CH₃COO)₂·H₂O) via acetic acid reaction. After that, cockle-derived calcium acetate monohydrate was subsequently prepared as a solution to synthesize calcium pyrophosphate (Ca₂P₂O₇·xH₂O) via a simple precipitation process with tetrasodium pyrophosphate decahydrate (Na₄P₂O₇·10H₂O). The physicochemical characteristics of the synthesized calcium acetate precursor and its calcium pyrophosphate product were investigated by X-ray fluorescence, X-ray diffraction, Fourier transform infrared spectroscopy, thermogravimetry, and scanning electron microscopy. The characterization results demonstrate that cockle shell powder (CaCO₃) is a potentially renewable source for the preparation of triclinic calcium acetate with the chemical formula of Ca(CH₃COO)₂·H₂O, which was further used as the precursor to form value-added amorphous calcium pyrophosphate with the chemical formula of Ca₂P₂O₇·4H₂O. This approach not only demonstrates the feasibility of using biogenic Ca-sources for material synthesis but also offers an environmentally friendly process with potential long-term benefits in reducing environmental issues, promoting sustainable chemical production, and increasing value to the underused biowaste.

富钙海贝废弃物可作为可再生材料制备高附加值化合物。本文首次提出了利用贝壳类生物废弃物作为低成本可再生钙源，在生态环境下制备焦磷酸钙的方法。首先将贝壳磨碎，得到碳酸钙（CaCO3）粉末，再将碳酸钙（CaCO3）粉末作为再生材料，通过乙酸反应合成一水乙酸钙（Ca(CH3COO)2·H2O）。然后，以十水焦磷酸四钠（Na4P2O7·10H2O）为原料，采用简单沉淀法合成焦磷酸钙（Ca2P2O7·xH2O）。采用x射线荧光、x射线衍射、傅里叶变换红外光谱、热重法和扫描电镜对合成的乙酸钙前驱体及其焦磷酸钙产物的理化性质进行了研究。表征结果表明，鸟螺壳粉（CaCO3）是一种潜在的可再生原料，可用于制备化学式为Ca(CH3COO)2·H2O的三斜型醋酸钙，并可作为前体制备化学式为Ca2P2O7·4H2O的增值无定形焦磷酸钙。这种方法不仅证明了利用生物源钙进行材料合成的可行性，而且还提供了一种环境友好的过程，在减少环境问题、促进可持续化学生产和增加未充分利用的生物废物的价值方面具有潜在的长期效益。

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引用次数: 0

Phytosynthesized bimetallic gold-copper nanoparticles using Anacardium occidentale leaf extract and its potential antidiabetic activity 利用西心梗叶提取物合成双金属金-铜纳米颗粒及其潜在的抗糖尿病活性

Q2 Materials Science

Current Research in Green and Sustainable Chemistry

Pub Date : 2025-01-01 DOI: 10.1016/j.crgsc.2025.100489

Ojeyemi Matthew Olabemiwo , Galadima John , Abel Kolawole Oyebamiji , Sunday Adewale Akintelu

This study describes the anti-diabetic property of gold-copper nanoparticles (Au-CuNPs) synthesized using Anacardium occidentale leaf extract. The synthesized Au-NPs was characterized with UV–UV-Visible spectroscopic technique, Fourier-transform infrared spectroscopy, Transmission electron microscopy, X-ray diffraction, and Energy-dispersive X-ray spectroscopy. The formation of the Au-NPs was confirmed by the two distinct peaks on the UV–UV-Visible spectrum at 278 and 532 nm, which correspond to the absorbance of Cu and AuNPs, respectively. The FTIR analysis revealed the involvement of biomolecules with –OH, –NH, –CO, and aromatic –CC- among other functional groups in the Anacardium occidentale leaf extract as the reducing and capping agents. Transmission electron microscopy and X-ray diffraction analysis confirmed the synthesized Au-CuNPs as spherical and crystalline, with particle size in the range of 2–37 nm. The biosynthesized Au-CuNPs displayed effective inhibition against α-amylase and α-glucosidase. At 100 μg/mL, the percentage inhibition of Anacardium occidentale leaf extract, biosynthesized Au-CuNPs, and acarbose was 21, 66, and 80 % against α-amylase and 37, 75, and 83 % against α-glucosidase. The IC₅₀ values of Anacardium occidentale leaf extract, biosynthesized Au-CuNPs, and Acarbose were 149, 50, and 35, against the α-glucosidase and 128.74, 46.16, and 28.40 against α-amylase, respectively. The order of inhibition against α-glucosidase and α-amylase was acarbose > biosynthesized Au-CuNPs > Anacardium occidentale leaf extract. The results show that the biosynthesized Au-CuNPs exhibited a significant level of inhibition against α-glucosidase and α-amylase. This result revealed that Au-CuNPs biosynthesized from Anacardium occidentale leaf extract could be a potential candidate to combat diabetes.

本文研究了以西心梗叶提取物为原料合成的金铜纳米颗粒（Au-CuNPs）的抗糖尿病性能。利用紫外可见光谱、傅里叶变换红外光谱、透射电镜、x射线衍射和能量色散x射线光谱对合成的Au-NPs进行了表征。在紫外-紫外可见光谱中，278 nm和532 nm处有两个明显的峰，分别对应Cu和AuNPs的吸光度，证实了Au-NPs的形成。傅里叶红外光谱分析表明，在西药叶提取物中含有- oh、- nhh、- co和芳香族- cc -等官能团的生物分子作为还原和封盖剂。透射电子显微镜和x射线衍射分析证实，合成的Au-CuNPs为球形结晶，粒径在2 ~ 37 nm之间。生物合成的Au-CuNPs对α-淀粉酶和α-葡萄糖苷酶有较好的抑制作用。在100 μg/mL浓度下，西木犀叶提取物、生物合成Au-CuNPs和阿卡波糖对α-淀粉酶的抑制率分别为21.6%和80%，对α-葡萄糖苷酶的抑制率分别为37.75%和83%。西心木叶提取物、生物合成Au-CuNPs和阿卡波糖对α-葡萄糖苷酶的IC50值分别为149、50和35，对α-淀粉酶的IC50值分别为128.74、46.16和28.40。对α-葡萄糖苷酶和α-淀粉酶的抑制作用顺序为：阿卡波糖；生物合成Au-CuNPs；结果表明，生物合成的Au-CuNPs对α-葡萄糖苷酶和α-淀粉酶具有显著的抑制作用。这一结果表明，由西心梗叶提取物生物合成的Au-CuNPs可能是抗糖尿病的潜在候选药物。

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引用次数: 0

Comparative analysis of the response surface methodology (RSM) and artificial neural network (ANN) modelling for the removal of diclofenac potassium from synthesized pharmaceutical wastewater using a palm sheath fiber nano-filtration membrane and optimization 响应面法（RSM）和人工神经网络（ANN）模型对棕榈鞘纤维纳米过滤膜去除制药废水中双氯芬酸钾的影响对比分析及优化

Q2 Materials Science

Current Research in Green and Sustainable Chemistry

Pub Date : 2025-01-01 DOI: 10.1016/j.crgsc.2025.100466

Modestus O. Anusi , Mathew C. Menkiti , Alexander I. Ikeuba , Chigoziri N. Njoku , Chukwuma E. Iloegbunam , Chinaza J. Nnamani , Anselem C. Orga

Palm sheath fiber obtained from the petiole of palm tree leaf was defatted and characterized by X-ray diffraction (XRD), revealing a crystalline composition of 75 % calcite, 10.5 % quartz, 4 % periclase, and 10.2 % lime. Further analysis of pore area, volume, and diameter confirmed the membrane as an adsorptive nanofiltration material. A stock solution of Diclofenac potassium was prepared and was filtered varying four process factors: temperature (30–50 °C), pH (6–10), flow-rate (1–5 ml/min), and initial concentration (40–120 mg/L). The removal efficiency of Diclofenac Potassium was analyzed and compared using two optimization models; Methodology (RSM) and Artificial Neural Networks (ANN), focusing on the influence of these factors. The performance and sensitivity of these models were assessed using statistical metrics such as correlation coefficients (R²), Absolute Average Relative Deviation (AARD), and Mean Absolute Error (MAE). Both models demonstrated strong correlation with the experimental data, with the ANN model providing the best predictive accuracy. Optimization of the process via genetic algorithms yielded the optimal membrane removal efficiency of 84.78 %, achieved at initial concentration (102 mg/L), pH (8.8), temperature (40.6 °C), and flow rate (3.6 ml/min). The validation of these optimized parameters was carried out through triplicate experiments, resulting in an average confirmatory removal efficiency of 84.67 %, which validated the ANN prediction. Additionally, adsorption isotherm analysis revealed that the Dubinin-Radushkevich (D-R) model was the best fit for the experimental data, with an R² value of 0.9839. The adsorption kinetics suggested that the process followed pseudo-first-order kinetics as the rate-limiting mechanism.

对从棕榈叶柄中提取的棕榈鞘纤维进行脱脂和x射线衍射（XRD）表征，发现其晶体成分为75%方解石、10.5%石英、4%方解石和10.2%石灰。进一步的孔面积、体积和直径分析证实了该膜是一种吸附纳滤材料。制备双氯芬酸钾原液，通过温度（30-50℃）、pH（6-10）、流速（1-5 ml/min）、初始浓度（40-120 mg/L）四个工艺因素进行过滤。采用两种优化模型对双氯芬酸钾的去除率进行了分析比较；方法（RSM）和人工神经网络（ANN），重点研究这些因素的影响。使用相关系数（R2）、绝对平均相对偏差（AARD）和平均绝对误差（MAE）等统计指标评估这些模型的性能和灵敏度。两种模型均与实验数据具有较强的相关性，其中人工神经网络模型的预测精度最高。在初始浓度（102 mg/L）、pH（8.8）、温度（40.6°C）和流速（3.6 ml/min）下，通过遗传算法对工艺进行优化，获得了最佳的膜去除率为84.78%。通过三次实验对优化后的参数进行验证，平均验证去除效率为84.67%，验证了人工神经网络的预测结果。吸附等温线分析表明，Dubinin-Radushkevich （D-R）模型与实验数据拟合最佳，R2值为0.9839。吸附动力学表明，该过程遵循准一级动力学作为限速机制。

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引用次数: 0

Tofu Wastewater Recovery for β-glucan Production by Pichia norvegensis and Candida tropicalis 利用诺维毕赤酵母和热带假丝酵母回收豆腐废水生产β-葡聚糖

Q2 Materials Science

Current Research in Green and Sustainable Chemistry

Pub Date : 2025-01-01 DOI: 10.1016/j.crgsc.2025.100445

Deidita Nafisa Wahyudi , Gemilang Lara Utama , Andri Frediansyah

This study aims to determine the applicability of tofu wastewater as a medium for yeast growth and to determine the optimal growth time of yeast to produce β-glucans, as well as the yield and characteristics of β-glucans extract. Pichia norvegensis and Candida tropicalis cell walls were extracted for β-glucan. FTIR, solid-state NMR, and SEM were utilized to investigate purity, structural differences, and antioxidant activity. Candida tropicalis (BCT) yielded 3.20 % crude β-glucan, while Pichia norvegiensis NYI (BPN) yielded 2.10 %. FTIR showed β-glucan impurities in mannoprotein-chitosan combinations. BPN and BCT have β-glucan bands at 1075, 1041, and 894 cm⁻¹. The impurity of both samples was confirmed by NMR spectra, which showed that the broad signal of BPN and BCT chemical shift at 4.803–4.587 ppm and at 4.764–4.541 ppm, respectively, corresponded to l β-1,3-glucosidic and β-1,6-glucosidic linkage, with some unusual anomeric resonance at 5.094–5.024 ppm by SEM, BPN and BCT were porous, sheet-like, and fibrous. BPN had 20.07 % DPPH radical scavenging activity, while BCT had 36.01 %.

本研究旨在确定豆腐废水作为酵母生长培养基的适用性，确定酵母产生β-葡聚糖的最佳生长时间，以及β-葡聚糖提取物的产量和特性。提取诺维毕赤酵母和热带念珠菌细胞壁中β-葡聚糖。利用红外光谱、固体核磁共振和扫描电镜研究其纯度、结构差异和抗氧化活性。热带假丝酵母（BCT）的β-葡聚糖粗收率为3.20%，诺贝吉诺毕赤酵母（BPN）的粗收率为2.10%。FTIR显示甘露糖蛋白-壳聚糖复合物中含有β-葡聚糖杂质。BPN和BCT在1075、1041和894 cm−1处有β-葡聚糖带。结果表明，BPN和BCT在4.803 ~ 4.587 ppm和4.764 ~ 4.541 ppm的化学位移宽信号分别对应于1 β-1,3-葡萄糖苷和β-1,6-葡萄糖苷键，在5.094 ~ 5.024 ppm有异常的端粒共振，BPN和BCT呈多孔片状纤维状。BPN对DPPH自由基的清除能力为20.07%，BCT为36.01%。

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引用次数: 0

Retraction notice to “On interfacial and surface behavior of polymeric MXenes nanoarchitectures and applications” [Curr. Res. Green Sustain. Chem. 4 (2021) 100104] “聚合物MXenes纳米结构和应用的界面和表面行为”的撤回通知[当前]。绿色维持。化学。4 (2021)100104]

Q2 Materials Science

Current Research in Green and Sustainable Chemistry

Pub Date : 2025-01-01 DOI: 10.1016/j.crgsc.2025.100478

Christopher Igwe Idumah, Chizoba May Obele, Uzoma Ebenezer Enwerem

引用次数: 0

Utilization of recycled pulp from used beverage cartons and bio-based PLA for disposable oil-absorbing pads 利用废旧饮料纸盒回收纸浆和生物基聚乳酸制作一次性吸油垫

Q2 Materials Science

Current Research in Green and Sustainable Chemistry

Pub Date : 2025-01-01 DOI: 10.1016/j.crgsc.2025.100486

Nanjaporn Roungpaisan , Nareerut Jariyapunya , Natee Srisawat , Sommai Pivsa-Art , Weraporn Pivsa-Art , Ponlapath Tipboonsri , Anin Memon

The increasing consumption of milk, juice, and other beverages has led to a rise in residual waste from beverage cartons. This study focuses on developing oil-absorbing pads using recycled pulp from beverage cartons as the core layer and non-woven polylactic acid (PLA) as the face layer. Recycled pulp was ground at various spinning times, producing rough, intermediate, and ultrafine forms. These pulps were treated with JAN (Japan) and GER (Germany) silane solutions at concentrations of 1, 2, 3, 5, and 10 wt%. Non-woven PLA was fabricated via the melt-blown process at screw speeds of 0.5 and 13 rpm, resulting in large and ultrafine PLA mats. Oil absorbency tests were conducted at various weight ratios of recycled pulp to non-woven PLA (100:0 to 0:100). Although untreated ultrafine pulp was unable to form sheets on its own, it exhibited the highest absorption capacity, reaching up to 19.5 g/g. Untreated pulp consistently absorbed more oil than treated variants. Consequently, ultrafine untreated pulp was used for further testing in mixed ratios with PLA. The results showed a decrease in oil absorbency with increasing PLA content. Among the PLA samples, the large non-woven PLA achieved the highest absorption capacity of 19.8 g/g and was selected for the pad's face layer. The final oil-absorbing pads, sized 10 cm × 10 cm, were fabricated using ultrasonic welding to seal the layers. The developed prototype incorporates recycled and biodegradable materials, offering a sustainable solution for oil absorption applications aligned with environmental goals.

牛奶、果汁和其他饮料消费量的增加导致了饮料纸盒残留废物的增加。研究了以饮料纸盒再生纸浆为芯层，以无纺布聚乳酸（PLA）为面层的吸油垫材料。回收纸浆经不同纺纱时间研磨，可制成粗浆、中浆和超细浆。这些纸浆分别用JAN（日本）和GER（德国）硅烷溶液处理，浓度分别为1、2、3、5和10 wt%。采用熔喷法制备了无纺布聚乳酸，螺杆转速分别为0.5和13 rpm，得到了大型和超细聚乳酸垫。对再生纸浆与无纺布PLA的重量比（100:0 ~ 0:100）进行吸油试验。未经处理的超细纸浆虽然不能自行成片，但其吸收能力最高，达到19.5 g/g。未处理的纸浆始终比处理过的纸浆吸收更多的油。因此，使用未经处理的超细纸浆与PLA混合比例进行进一步测试。结果表明，随着PLA含量的增加，吸油性降低。在聚乳酸样品中，大尺寸的无纺布聚乳酸吸收容量最高，为19.8 g/g，被选择用于垫面层。最终吸油垫的尺寸为10 cm × 10 cm，采用超声波焊接的方法对各层进行密封。开发的原型采用了可回收和可生物降解的材料，为吸油应用提供了符合环境目标的可持续解决方案。

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引用次数: 0

Enhancing sustainable silk Textiles: Optimization of teak leaf extract dyeing and antibacterial efficacy 增强丝绸纺织品的可持续性：柚木叶提取物染色和抗菌效果的优化

Q2 Materials Science

Current Research in Green and Sustainable Chemistry

Pub Date : 2025-01-01 DOI: 10.1016/j.crgsc.2025.100457

Nattadon Rungruangkitkrai , Rattanaphol Mongkholrattanasit , Peeraya Ounu , Nawarat Chartvivatpornchai , Jirachaya Boonyarit , Kamlai Laohaphatanaleart , Rungsima Chollakup

This study introduces an environmentally friendly method for dyeing silk using pigments extracted from young teak leaves (Tectona grandis 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 Staphylococcus aureus and Escherichia coli in agar well diffusion tests, though inhibition zones were modest (<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.

本研究介绍了一种从柚木幼叶（Tectona grandis L.）中提取的色素染色丝绸的环保方法，提供了一种可持续的解决方案，以减少合成染料的污染，同时重新利用农业废弃物。乙醇（95%）提取的柚木叶中含有丰富的多酚类和类醌类化合物，可制得适合染色的红褐色色素。优化了染色温度（30-100℃）、持续时间（10-60 min）和pH（3-11）等关键染色条件，以最大限度地提高颜色吸收和均匀性。通过分光光度法（L∗,a∗，b∗值）和K/S测量评估显色性能。三种媒染剂，包括明矾（硫酸铝钾），硫酸亚铁和氯化亚锡进行了测试，使用前，中，后媒染剂技术。用硫酸亚铁预涂布可获得最深的色调和最高的色强，以及出色的耐洗和耐光性（灰色等级≥4）。红外光谱显示通过分子配位形成稳定的染料媒染剂配合物。在琼脂孔扩散试验中，染色蚕丝对金黄色葡萄球菌和大肠杆菌表现出温和的抗菌性能，尽管抑制范围不大（0.20 cm），可能是由于残留的生物活性化合物。这些结果将柚木叶提取物定位为一种集美观、生态和卫生优点于一体的多功能天然染料。通过与循环经济原则相一致，这种方法为可持续纺织品生产提供了一条可行的途径。尽管如此，未来的研究应侧重于优化提取方法，提高抗菌功效，并扩大工业应用的过程。

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引用次数: 0

Optimization, derivatization and characterization of mango waste cellulose (Mangifera indica) and its use for the production of composite nanofibers 芒果废纤维素（Mangifera indica）的优化、衍生化和表征及其在复合纳米纤维生产中的应用

Q2 Materials Science

Current Research in Green and Sustainable Chemistry

Pub Date : 2025-01-01 DOI: 10.1016/j.crgsc.2025.100453

Amet Ovando-Roblero , María Celina Luján-Hidalgo , Rocío Meza-Gordillo , Rosa Isela Cruz-Rodríguez , Zaira Domínguez , Ricardo Vera-Graziano , Elisa Miranda Buendía , Karla K. Gómez-Lizárraga

引用次数: 0

Innovative membrane engineering: Polyphenylsulfone/silver-doped zinc oxide for high-efficiency protein rejection 创新膜工程：聚苯砜/银掺杂氧化锌高效蛋白质排斥

Q2 Materials Science

Current Research in Green and Sustainable Chemistry

Pub Date : 2025-01-01 DOI: 10.1016/j.crgsc.2025.100460

H.R. Panchami , Arun M. Isloor , A.M. Vijesh , Ramin Farnood

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.

本研究采用干湿相转化技术合成了含银掺杂氧化锌（Ag-ZnO）的纳米复合聚苯砜（PPSU）平板膜。光谱表征证实纳米颗粒掺入膜基质。微观表征验证了Ag-ZnO纳米颗粒在膜上均匀分布。研究了Ag-ZnO修饰的PPSU膜对BSA、鸡蛋白蛋白和胃蛋白酶的排斥性能。与纯膜相比，含有1.5wt% Ag-ZnO纳米粒子的PPSU复合膜具有更高的纯水渗透性和蛋白质排斥性能。在膜中添加Ag-ZnO纳米颗粒可增加膜的渗透性、防污性和蛋白质的排斥性。AZM-2膜对牛血清白蛋白、鸡蛋白蛋白和胃蛋白酶的排斥率最高，分别为92.1%、86.8%和73.4%。

引用次数: 0