Green Materials最新文献_第3页

ZIF-8 decorated wood sponge derived from biomimetic mineralization of polydopamine and its adsorption toward toluene in aqueous 聚多巴胺仿生矿化制备的ZIF-8装饰海绵及其对水中甲苯的吸附

4区材料科学

Green Materials Pub Date : 2023-11-06 DOI: 10.1680/jgrma.23.00075

Fei Sun, Mengjia Zhang, Haixin Zhu, Yuewen Huang, Bin Song, Peijiang Wang, Shanshan Jiang, Bin Wang

{"title":"ZIF-8 decorated wood sponge derived from biomimetic mineralization of polydopamine and its adsorption toward toluene in aqueous","authors":"Fei Sun, Mengjia Zhang, Haixin Zhu, Yuewen Huang, Bin Song, Peijiang Wang, Shanshan Jiang, Bin Wang","doi":"10.1680/jgrma.23.00075","DOIUrl":"https://doi.org/10.1680/jgrma.23.00075","url":null,"abstract":"Zeolitic-imidazolate framework-8 (ZIF-8) are extensively researched and availed owing to their exclusive structural and excellent physicochemical properties while significant challenges of alleviating adverse effects of their particle form in many aspects are still facing scientific community. In this study, in situ growth of ZIF-8 within the pore channels and surfaces of green cellulose-based wood sponge was attempted through polydopamine mediated incubation. The wood sponge was prepared derived from eliminating lignin and hemicellulose from natural balsa wood. And then the sponge was impregnated into dopamine aqueous solution to yield polydopamine covered wood sponge. ZIF-8 crystals were ultimately in situ grew in substrate after sequentially impregnating in zinc nitrate hexahydrate and 2-methylimidazole aqueous solution at room temperature. Additional, the effect of deposition concentration of dopamine aqueous solution and ZIF-8 incubation time were investigated. The obtained ZIF-8@PWS was characterized using FTIR, SEM, XRD, BET and TGA. Finally, adsorption performance of porous ZIF-8@PWS toward toluene in aqueous solution was also briefly evaluated, and it demonstrated that maximum adsorption capacity was 106.4 mg.g −1 and the removal rate is as high as 94.2%. This work validates the envisioned universal protocol of preparing ZIF-8 decorated porous substrates via integrated mediate role of polydopamine.","PeriodicalId":12929,"journal":{"name":"Green Materials","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135634748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Micellar systems of the o/w type with essential oils of andiroba and lemon grass with applications for the elimination of bacterial activity o/w型胶束系统，含有香茅精油和柠檬草精油，用于消除细菌活性

4区材料科学

Green Materials Pub Date : 2023-10-10 DOI: 10.1680/jgrma.23.00056

Rita Kássia da Silva, Christiane Siqueira de Azevedo Sá, Ivan Alves de Souza, José Heriberto Oliveira do Nascimento, Cátia Guaraciara F T Rossi, Michelle Cequeira Feitor, Késia K O S Silva

{"title":"Micellar systems of the o/w type with essential oils of andiroba and lemon grass with applications for the elimination of bacterial activity","authors":"Rita Kássia da Silva, Christiane Siqueira de Azevedo Sá, Ivan Alves de Souza, José Heriberto Oliveira do Nascimento, Cátia Guaraciara F T Rossi, Michelle Cequeira Feitor, Késia K O S Silva","doi":"10.1680/jgrma.23.00056","DOIUrl":"https://doi.org/10.1680/jgrma.23.00056","url":null,"abstract":"In this study, a promising microemulsion delivery system containing andiroba essential oil, lemongrass essential oil, and chitosan was developed and applied in 100% cotton fabrics to provide antibacterial functionality. The developed micellar systems were characterized by coloration, electrical conductivity, viscosity, zeta potential, particle size, temperature resistance, and microbial activity analyses. The microemulsions in the substrates were verified by FTIR analyses and microbial activity before and after the domestic washing of the functionalized fabrics. The microemulsions SMs_P1 and SMs_P4 showed more significant inhibitory action against Staphylococcus aureus, Escherichia coli, and Enterobacter sp. bacteria, observed in the functionalized samples before and after domestic washing. In this study, the microemulsions SMs_P1 and SMs_P4 developed and tested on 100% cotton fabrics have greater application viability because they showed inhibitory action against gram-positive and gram-negative bacteria Staphylococcus aureus, Escherichia coli, and Enterobacter sp. This antibacterial functionality of the microemulsions was also observed in 100% cotton fabrics treated with them (Ta_SMs_P1 and Ta_SMs_P4) before and after domestic washing, as demonstrated by FTIR and antimicrobial activity analyses, with greater emphasis on microemulsion SMs_P4, which has lower concentrations than SMs_P1 and showed significant values (halo size) in blocking the action of Escherichia coli bacteria.","PeriodicalId":12929,"journal":{"name":"Green Materials","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136295495","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of NANH as nucleation agent on performances of PLLA NANH作为成核剂对聚乳酸性能的影响

4区材料科学

Green Materials Pub Date : 2023-10-05 DOI: 10.1680/jgrma.22.00123

Hao Huang, Yanhua Cai, Lisha Zhao

{"title":"Effects of NANH as nucleation agent on performances of PLLA","authors":"Hao Huang, Yanhua Cai, Lisha Zhao","doi":"10.1680/jgrma.22.00123","DOIUrl":"https://doi.org/10.1680/jgrma.22.00123","url":null,"abstract":"In this research, NANH as a new synthetic organic nucleating agent was employed to overcome PLLA’s slow crystallization rate. Melt-crystallization showed that PLLA’s crystallization ability was significantly enhanced by NANH, even that NANH was still able to evidently accelerate PLLA’s crystallization upon cooling rate of 50 °C/min. Additionally, when the final melting temperature was 170°C, the onset melt-crystallization temperature and melt-crystallization peak temperature of PLLA/3%NANH were up to 160.0 °C and 155.1 °C. Isothermal crystallization showed that the half time of overall crystallization of PLLA/3%NANH was dramatically reduced, from 71.9 min at 135 °C for the virgin PLLA, to the minimum value of 0.3 min, and this advanced nucleation effect was speculated to be attributed to chemical nucleation via the theoretical analysis of frontier orbital energy. Melting behaviors under different conditions further confirmed the crystallization accelerating effect of NANH for PLLA’s crystallization, and the melting processes were affected by crystallization temperature and heating rate. Although NANH decreased PLLA’s thermal decomposition temperature in air, thermal decomposition temperatures of all PLLA/NANH were higher than 330 °C, which could meet the daily usage. Finally, the addition of NANH enhanced PLLA’s fluidity, however, the light transmittance was seriously weakened.","PeriodicalId":12929,"journal":{"name":"Green Materials","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134975698","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Structure-property relationship in edible pectin-alginate/orange peel biocomposite films 可食性果胶-海藻酸盐/橙皮生物复合膜的结构-性能关系

4区材料科学

Green Materials Pub Date : 2023-09-29 DOI: 10.1680/jgrma.23.00082

Merve Mocan, Sinan Barış Uncu

引用次数: 0

Adhesion performance of highly biobased latex copolymers from isobornyl methacrylate and plant oil-based acrylic monomers 甲基丙烯酸异冰片酯与植物油基丙烯酸单体高度生物基乳液共聚物的粘接性能

IF 1.9 4区材料科学

Green Materials Pub Date : 2023-08-24 DOI: 10.1680/jgrma.23.00070

Bohdan Domnich, Oleg Shevhcuk, V. Kirianchuk, A. Voronov

{"title":"Adhesion performance of highly biobased latex copolymers from isobornyl methacrylate and plant oil-based acrylic monomers","authors":"Bohdan Domnich, Oleg Shevhcuk, V. Kirianchuk, A. Voronov","doi":"10.1680/jgrma.23.00070","DOIUrl":"https://doi.org/10.1680/jgrma.23.00070","url":null,"abstract":"A range of cross-linkable latex copolymers with up to 90% biobased content was synthesized from isobornyl methacrylate combined with acrylic monomers based on high-oleic soybean (HO-SBM) or camelina (CMM) oil in miniemulsion polymerization. By varying HO-SBM and CMM macromolecular fraction, the cross-link density of resulted materials can be altered due to differences in the fatty acid profile of plant oil-based monomers. The glass transition temperature of the synthesized copolymers correlates very well with calculated Flory-Fox values. Higher cross-link density of the biobased copolymer films leads to a notable growth in materials modulus, while elongation at break decreases due to more restricted macromolecular mobility. Remarkably, the copolymer with the highest in a range unsaturation (based on CMM) shows an increase of both the modulus and elongation at break owned, perhaps to extended entanglements of fatty acids-based side chains. The adhesion performance of the cross-linked biobased copolymers was evaluated using shear and peel strength measurements on steel and polypropylene. Based on the obtained results, the amount of unsaturation in CMM and HO-SBM (determined by plant oil composition) can be applied as a criterion to adjust adhesion by choosing plant oil-based monomers (or their mixtures) with different unsaturation and provide properties and performance required for specific applications.","PeriodicalId":12929,"journal":{"name":"Green Materials","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2023-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43967793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimization of water-binding capacity and water removal from oil by eggplant stems using response surfaces methodology 响应面法优化茄子茎的脱水能力

IF 1.9 4区材料科学

Green Materials Pub Date : 2023-08-10 DOI: 10.1680/jgrma.23.00050

Zehra Ordu, Pinar Belibagli, M. Yalvaç, H. Arslan, N. Dizge

{"title":"Optimization of water-binding capacity and water removal from oil by eggplant stems using response surfaces methodology","authors":"Zehra Ordu, Pinar Belibagli, M. Yalvaç, H. Arslan, N. Dizge","doi":"10.1680/jgrma.23.00050","DOIUrl":"https://doi.org/10.1680/jgrma.23.00050","url":null,"abstract":"Eggplant stems are among the most produced organic wastes. Unfortunately, the burning and irregular storage of these eggplant stems outdoors causes serious damage to both global air pollution and environmental pollution. Environmental impacts can be minimized by recycling eggplant stems, turning them into valuable products, and using them as valuable additives. In this study, water-binding capacity (WBC) and water-binding capacity in oil (WBCO) potential of eggplant stems were investigated. At the first step, optimization alkaline-treated of eggplant stems carried out. Alkaline-treated optimization parameters such as NaOH concentration (0.05, 0.125, and 0.2 M), temperature (20, 40, and 60 °C), and reaction time (30, 90, and 150 minutes) was investigated using response surface methodology (RSM). In the second step, both water holding capacity and water holding capacity in oil tests were performed for each experimental set. As a result of the experiments, 30.64 %, and 98.20% capacity efficiency respectively WBC, and WBOC were obtained for 0.125 M NaOH concentration, 60 °C temperature, and 150 minutes reaction time. In addition, eggplant stems have demonstrated the ability to effectively retain water for up to 5 cycles. The high water-binding capacity of eggplant stems in oil after alkali treatment shows that it can be a suitable and inexpensive candidate, especially for biodiesel purification and methane production.","PeriodicalId":12929,"journal":{"name":"Green Materials","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2023-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46088971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Le Green Deal est le nouveau contrat social 绿色交易是新的社会契约

4区材料科学

Green Materials Pub Date : 2023-08-07 DOI: 10.3917/green.003.0026

Laurence Tubiana

引用次数: 1

De l’Europe aux villages, un témoignage 从欧洲到村庄，一个见证

4区材料科学

Green Materials Pub Date : 2023-08-07 DOI: 10.3917/green.003.0044

Fanny Lacroix

引用次数: 0

“Je m’intéresse à l’Europe en tant que problème écologique.” “我对欧洲作为一个生态问题感兴趣。”