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首页> 外文期刊>Journal of Wood Chemistry and Technology >PREPARATION OF XYLAN-ACRYLIC ACID POLYMER WITH HIGH MOLECULAR WEIGHT AND ITS APPLICATION AS A DYE REMOVAL FLOCCULANT
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PREPARATION OF XYLAN-ACRYLIC ACID POLYMER WITH HIGH MOLECULAR WEIGHT AND ITS APPLICATION AS A DYE REMOVAL FLOCCULANT

机译：用高分子量的木聚糖 - 丙烯酸聚合物的制备及其应用作为染料去除絮凝剂

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摘要

Xylan is found in natural products and can be used for preparing value-added products. The main purpose of this study was to produce a xylan-based polymer (xylan-acrylic acid [Xy-AA]) as a flocculant for removing ethyl violet dye from wastewater. In this study, the polymerization reaction of xylan and acrylic acid (AA) was optimized by response surface methodology (RSM). It was indicated that the maximum charge density of -5.87 mmol/g and molecular weight of 352,028 g/mol were obtained for Xy-AA polymer under the conditions of 20.53 g/L xylan concentration, 0.31 xylan/AA molar ratio, 2.5 h reaction time, and 72 degrees C reaction temperature. The polymer was characterized by charge density analyzer, Fourier transform infrared spectroscopy (FTIR), proton nuclear magnetic resonance (H-1-NMR), and thermogravimetric analysis (TGA). The application of the product as a flocculant for removing the ethyl violet from simulated dye solution was evaluated. The results showed that the optimal dye removal of 97.08% was achieved under the conditions of 50 mg/L dye concentration, 120 mg/L Xy-AA concentration, pH 10, and 30 degrees C. The flocculation mechanism was also discussed.
机译：Xylan在天然产品中发现，可用于制备增值产品。本研究的主要目的是生产基于木聚糖的聚合物（木聚糖 - 丙烯酸[XY-AA]），作为从废水中除去乙基紫染料的絮凝剂。在该研究中，通过响应表面方法（RSM）优化了木聚糖和丙烯酸（AA）的聚合反应。结果表明，在20.53g / l木聚糖浓度，0.31克朗/ AA摩尔比的条件下，为XY-AA聚合物提供-5.87mmol / g和分子量为352,028g / mol的最大电荷密度。时间和72℃的反应温度。该聚合物的特征在于电荷密度分析仪，傅里叶变换红外光谱（FTIR），质子核磁共振（H-1-NMR）和热重分析（TGA）。评价产物作为从模拟染料溶液中除去乙基紫罗兰的絮凝剂的施加。结果表明，在50mg / L染料浓度，120mg / L XY-AA浓度，pH10和30℃的条件下，实现了97.08％的最佳染料去除。还讨论了絮凝机制。

著录项

  • 来源
    《Journal of Wood Chemistry and Technology》 |2019年第3期|75-89|共15页
  • 作者

    Xu Dingding; Liu Zhongming; Zhou Wanpeng; Zhao Xin; Fu Chenglong; Fatehi Pedram; Kong Fangong; Yang Guihua; Wang Shoujuan;

  • 作者单位

    Qilu Univ Technol Shandong Acad Sci State Key Lab Biobased Mat & Green Papermaking Jinan 250353 Shandong Peoples R China;

    Qilu Univ Technol Shandong Acad Sci State Key Lab Biobased Mat & Green Papermaking Jinan 250353 Shandong Peoples R China;

    Xuancheng Prod Qual Supervis & Inspect Inst Xuancheng Peoples R China;

    Qilu Univ Technol Shandong Acad Sci State Key Lab Biobased Mat & Green Papermaking Jinan 250353 Shandong Peoples R China;

    Qilu Univ Technol Shandong Acad Sci State Key Lab Biobased Mat & Green Papermaking Jinan 250353 Shandong Peoples R China;

    Lakehead Univ Dept Chem Engn Thunder Bay ON Canada;

    Qilu Univ Technol Shandong Acad Sci State Key Lab Biobased Mat & Green Papermaking Jinan 250353 Shandong Peoples R China;

    Qilu Univ Technol Shandong Acad Sci State Key Lab Biobased Mat & Green Papermaking Jinan 250353 Shandong Peoples R China;

    Qilu Univ Technol Shandong Acad Sci State Key Lab Biobased Mat & Green Papermaking Jinan 250353 Shandong Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Xylan; Xy-AA polymer; RSM; dye removal; flocculant;

    机译：XYLAN;XY-AA聚合物;RSM;染料去除;絮凝剂;

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