Home / Advanced Search

  • Title/Keywords

  • Author/Affliations

  • Journal

  • Article Type

  • Start Year

  • End Year

Update SearchingClear
  • Articles
  • Online
Search Results (25)
  • Open Access

    ARTICLE

    Preparation and Characterization of Biobased Dehydroabietyl Polyethylene Glycol Glycidyl Ether-Grafted Hydroxyethyl Cellulose with High Emulsifying Property

    Zhengqing Ding, Quan Yang, Xinyan Yan, Feng Gu, Xujuan Huang*, Zhaosheng Cai*

    Journal of Renewable Materials, Vol.12, No.1, pp. 103-117, 2024, DOI:10.32604/jrm.2023.029424

    Abstract Dehydroabietyl polyethylene glycol glycidyl ether-grafted hydroxyethyl cellulose (HEC) polymer surfactant (DA(EO)5GE-g-HEC) was prepared using ring-opening polymerization with biobased rosin and hydroxyethyl cellulose as feedstocks. Dehydroabietyl polyethylene glycol glycidyl ether (DA(EO)5GE) was formed by condensation of dehydroabietyl alcohol polyoxyethylene ether (Rosin derivative: DA(EO)5H) and epichlorohydrin. The grafting degree of DA(EO)5GE-g-HEC was manipulated by adjusting the mass ratio of HEC and DA(EO)5GE and confirmed by EA. According to the formula, when m(HEC)/m(DA(EO)2GE) was 1:1~1:5, the grafting rate of DA(EO)5GE in DA(EO)5GE-g-HEC varied from 34.43% to 38.33%. The surface activity and foam properties of DA(EO)5GE-g-HEC aqueous solution were studied. The results showed that… More > Graphic Abstract

    Preparation and Characterization of Biobased Dehydroabietyl Polyethylene Glycol Glycidyl Ether-Grafted Hydroxyethyl Cellulose with High Emulsifying Property

  • Open Access

    ARTICLE

    Surfactant-Modified Hydrophobic Biochar Derived from Laver (Porphyra haitanensis) with Superior Removal Performance for Kitchen Oil

    Jiaxing Sun1, Lili Ji1,*, Qianrui He1, Ran Li1, Xiaoyue Xia2, Yaning Wang1, Yi Yang2, Lu Cai3, Jian Guo2

    Journal of Renewable Materials, Vol.11, No.8, pp. 3227-3243, 2023, DOI:10.32604/jrm.2023.027160

    Abstract

    In this study, a novel absorpent (MSAR600°C) with a hydrophobic surface and hierarchical porous structure for the removal of kitchen oil was facilely fabricated from the macroalgae, laver (Porphyra haitanensis) by incorporating high-temperature carbonization and alkyl polyglucosides (APG) and rhamnolipid (RL) surfactants modification. The characterization results showed MSAR600°C possessed a louts-leaf-like papillae microstructure with high contact angle (137.5°), abundant porous structure with high specific surface area (23.4 m2/g), and various oxygen-containing functional groups (-OH, C=O, C-O). Batch adsorption experiments were conducted to investigate the effect of adsorption time, temperature, pH, and absorbent dose on kitchen oil adsorption performance. Then the… More > Graphic Abstract

    Surfactant-Modified Hydrophobic Biochar Derived from Laver (<i>Porphyra haitanensis</i>) with Superior Removal Performance for Kitchen Oil

  • Open Access

    ARTICLE

    Study of Oil-Bearing Drill Cuttings Cleaning and De-Oiling Treatment Method for Shale Gas Reservoirs

    Jialuo Rong1,2, Shuixiang Xie3,4, Huijing Geng5, Hao Hu1,2, Shanfa Tang1,2,*, Yuanpeng Cheng1,2,*

    Energy Engineering, Vol.120, No.8, pp. 1899-1917, 2023, DOI:10.32604/ee.2023.027650

    Abstract Due to its extensive use in shale gas exploration and development, oil-based drilling fluids generate large amounts of oil-bearing drill cuttings during the drilling process. The large amount of oil-bearing drill cuttings generated during the drilling process can lead to serious secondary contamination. In this study, a wetting agent FSC-6 with good hydrophobic and oleophobic properties was synthesized to construct an efficient oil removal system. For the first time, the mechanism of this system was analyzed by using the theory of adhesion function, interfacial tension and wettability. At the same time, a combined acoustic-chemical treatment process was applied to the… More >

  • Open Access

    ARTICLE

    EXPERIMENTAL INVESTIGATION ON DRAG REDUCTION OF MIXED PEO AND CTAC/NASAL AQUEOUS SOLUTION IN A ROTATING DISK APPARATUS

    Wei Tiana , Mingjun Panga,*, Na Xub,†

    Frontiers in Heat and Mass Transfer, Vol.16, pp. 1-12, 2021, DOI:10.5098/hmt.16.13

    Abstract Drag reduction (DR) by the additive of mixed surfactant and polymer is investigated in detail in a rotating disk apparatus (RDA). Polyethylene oxide (PEO) and Cetyltrimethyl ammonium chloride (CTAC)/sodium salicylate (NaSal) are chosen as polymer and surfactant, respectively. It is investigated on the influence of combination concentration of polymer & surfactant, temperature and Reynolds number on the drag-reducing rate. The present experimental results show that the drag-reducing rate of the mixed solution is definitely higher than that of the pure PEO or CTAC/NaSal solutions. This phenomenon is especially sharp at the high temperature and/or the large Reynolds number. When the… More >

  • Open Access

    ARTICLE

    Effects of Cationic Surfactant on Fresh and Hardened Properties of Cement-Based Mortar

    Soumaya Zormati, Fadhel Aloulou*, Habib Sammouda

    Journal of Renewable Materials, Vol.11, No.5, pp. 2345-2365, 2023, DOI:10.32604/jrm.2023.026170

    Abstract

    The objective of this study is to analyze the effects of using surfactant (CTAB) and cellulose nanofibers (NFC) as an admixture in cement mortars. We examined composite properties as porosity, compression energy, thermal conductivity and hydration. The results showed that with the addition of 0.7% by weight of NFC per emulsion in the presence of a cationic surfactant (CTAB). The new material produced presented a dry porosity between 4.7% and 4.4%, compressive strength between 9.8 and 22.9 MPa, and thermal conductivity between 0.95 and 2.25 W·m−1·K−1. Thus we show better mechanical and thermal performance than that traditional Portland cement mortar… More > Graphic Abstract

    Effects of Cationic Surfactant on Fresh and Hardened Properties of Cement-Based Mortar

  • Open Access

    ARTICLE

    The Antibacterial Activities of Copper Oxide Nanoparticles Synthesized Using Laser Ablation in Different Surfactants against Streptococcus mutans

    Ruaa H. Abbas1, A. Kadhim1,*, Azhar M. Haleem2

    Journal of Renewable Materials, Vol.11, No.5, pp. 2109-2123, 2023, DOI:10.32604/jrm.2023.025112

    Abstract Copper oxide nanoparticles (CuO NPs) were synthesised with laser ablation of a copper sheet immersed in deionized water (DW), cetrimonium bromide (CTAB), and sodium dodecyl sulphate (SDS), respectively. The target was irradiated with a pulsed Nd: YAG laser at 1064 nm, 600 mJ, a pulse duration of 10 ns, and a repetition rate of 5 Hz. The CuO NPs colloidal were analyzed using UV–Vis spectroscopy, the Fourier transform infrared (FTIR) spectrometer, zeta potential (ZP), X-ray diffraction (XRD), transmission electron microscope (TEM) and field emission scanning electron microscopy (FESEM). The absorption spectra of CuO NPs colloidal showed peaks at 214, 215… More >

  • Open Access

    ARTICLE

    Metabolites Composition of Bacillus subtilis HussainT-AMU Determined by LC-MS and Their Effect on Fusarium Dry Rot of Potato Seed Tuber

    Touseef Hussain1,*, Abrar A. Khan1, Heba I. Mohamed2,*

    Phyton-International Journal of Experimental Botany, Vol.92, No.3, pp. 783-799, 2023, DOI:10.32604/phyton.2022.026045

    Abstract Fusarium dry rot is considered to be the most critical soilborne and postharvest disease that damages potato tubers worldwide when they are stored for a long time. This study was performed to demonstrate the effect of crude extract, culture filtrate, and cell suspension obtained from the bacterium Bacillus subtilis HussainT-AMU, on the net house and field. From oil-contaminated soil, through the serial dilution method, biosurfactant bacteria were isolated on nutrient agar medium. To isolate and screen the prospective biosurfactant strain, various biosurfactant screening methods were used. Standard protocols were carried out for morphological, molecular, and chemical characterization. The disease incidences… More >

  • Open Access

    ARTICLE

    CO2-Responsive Smart Foams Stabilized by an Extremely Rigid Bio-Based Surfactant

    Weishan Tang, Xin Feng, Caiyun Lin, Xiaoping Rao*

    Journal of Renewable Materials, Vol.11, No.2, pp. 523-538, 2023, DOI:10.32604/jrm.2022.022809

    Abstract Environment friendly and intelligent surfactants have attracted great attention in recent years. A bio-based CO2 responsive surfactant rosin acid dimaleimide choline (R-BMI-C) with an extremely rigid skeleton was prepared using rosin and choline as raw materials by Diels-Alder addition reaction and acid-base neutralization reactions. Its structure was confirmed by IR and 1H NMR spectra. The foams’ properties of R-BMI-C could be adjusted by bubbling CO2/N2 to change the structure of the surfactant. At pH 10.4, R-BMI-C forms an unstable foam with a half-life of 1.5 h. When the pH was reduced to 7.4 by bubbling CO2, R-BMI-C forms an extremely… More > Graphic Abstract

    CO<sub>2</sub>-Responsive Smart Foams Stabilized by an Extremely Rigid Bio-Based Surfactant

  • Open Access

    ARTICLE

    Agro-Industrial Waste as a Source of Raw Material: Eggshell and Ash of Agave salmiana Useful for the Synthesis of Hydroxyapatite

    Nora Elizondo-Villarreal1,*, Luz H. Verástegui-Dominguez1, Jose J. Quijano-Briones1, Francisco J. Vázquez-Rodríguez2, Eden Rodríguez-Castellanos3, Enrique López-Cuellar3, Ernesto Torres-Lopez1, Victor M. Castaño-Meneses4,*

    Journal of Renewable Materials, Vol.10, No.12, pp. 3559-3572, 2022, DOI:10.32604/jrm.2022.021945

    Abstract

    Agave salmiana ash and poultry eggshell powder as CaO sources were used for obtaining nanostructured hydroxyapatite (HAP). The synthesis was carried out by the Green Chemistry Hydrothermal Biosynthesis at 180°C with a pH of 5, by reacting CaO from Agave Salmiana ash and Eggshell powder, with dibasic calcium phosphate (CaHPO4•2H2O) in an aqueous solution, with Aloe barbadensis extract. The product was characterized by X-ray diffraction, Fourier-transform infrared spectroscopy (FT-IR), Scanning Electron Microscopy (SEM), and Transmission Electron Microscopy (TEM). The size and shape of the hydroxyapatite particles changed dramatically in the presence of Aloe barbadensis. Large crystals of Hydroxyapatite were observed… More > Graphic Abstract

    Agro-Industrial Waste as a Source of Raw Material: Eggshell and Ash of <i>Agave salmiana</i> Useful for the Synthesis of Hydroxyapatite

  • Open Access

    ARTICLE

    Preparation of Porous Materials Derived from Waste Mussel Shell with High Removal Performance for Tableware Oil

    Yi Yang1, Zhaodi Wu1, Lili Ji2, Shiyao Lu2, Hua Jing2, Jiaxing Sun2, Jian Guo1, Wendong Song3, Yaning Wang2, Lu Cai4,*

    Journal of Renewable Materials, Vol.9, No.11, pp. 1869-1881, 2021, DOI:10.32604/jrm.2021.015952

    Abstract In this work, carbonized mussel shell powder (CMSP) was modified by alkyl polyglucosides (APG) and rhamnolipid (RL) to render porous biomass a lipophilic surface, which was innovatively utilized as an environmentally friendly tableware cleaning material. The modified method was two-step hydrotherm-assisted synthesis. A contact angle meter was used to determine the surface hydrophobic property of modified samples (MTAR). The pore and the surface structure of CMSP and MTAR were characterized by BET, SEM, XRD, FTIR and XPS. The effect of removing oil was tested by gravimetric method. The results showed that the surface of MTAR was more porous and fluffier… More > Graphic Abstract

    Preparation of Porous Materials Derived from Waste Mussel Shell with High Removal Performance for Tableware Oil

Displaying 1-10 on page 1 of 25. Per Page