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首页> 外文期刊>Journal of Polymers and the Environment >Preparation of Carboxymethyl Cellulose-Based Hydrogel Supported by Two-Dimensional Montmorillonite Nanosheets for Methylene Blue Removal
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Preparation of Carboxymethyl Cellulose-Based Hydrogel Supported by Two-Dimensional Montmorillonite Nanosheets for Methylene Blue Removal

机译：用二维蒙脱石纳米烯片支负载羧甲基纤维素的水凝胶，用于亚甲基蓝色去除

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摘要

Carboxymethyl cellulose-based hydrogel enhanced by two-dimensional montmorillonite nanosheets (CMC-MMTs Gel) has been successfully synthesized throguh polymerization for methylene blue (MB) removal from water. Structure characterization shows that the introduction of two-dimensional montmorillonite nanosheets (2D MMTs) into CMC-based hyddrogel results in a roguh surface and increased porosity. Adsorption tests demonstrate that the adsorption rate and adsorption capacity of CMC-based hydrogel increase significantly with the increase in 2D MMTs content, and a high adsorption capacity of 410 mg g(-1) can be reached. After 5 cycles, CMC-MMTs Gel still exhibits good removal performance indicating a good reusability and structural stability. The enhanced MB removal performance and improved structural stability might be due to 2D MMTs and the increased porosity. FTIR and XPS characterizations demonstrate that the adsorption mechanism of MB onto CMC-MMTs Gel might be attributed to electrostatic adsorption and ion-exchange between MB molecules and MMTs, and the interactions between MB molecules and the hydroxyl and carboxyl groups of CMC.
机译：通过二维蒙脱石纳米晶片（CMC-MMTS凝胶）增强的羧甲基纤维素的水凝胶已成功地合成了从水中除去亚甲基蓝（MB）的血红音聚合。结构表征表明，将二维蒙脱土纳米片（2DMMT）引入CMC基Hydrogel导致罗格表面和增加的孔隙率。吸附试验表明，随着2DMMT含量的增加，CMC水凝胶的吸附速率和吸附能力显着增加，并且可以达到410mg（-1）的高吸附容量。在5个循环之后，CMC-MMT凝胶仍然表现出良好的去除性能，表明具有良好的可重用性和结构稳定性。增强的MB去除性能和改进的结构稳定性可能是由于2D MMT和增加的孔隙率。 FTIR和XPS表征表明，MB上的CMC-MMT凝胶的吸附机制可能归因于MB分子和MMT的静电吸附和离子交换，以及MB分子与CMC的羟基和羧基之间的相互作用。

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  • 来源
    《Journal of Polymers and the Environment》 |2021年第12期|3918-3931|共14页
  • 作者

    Ma Qiulin; Wang Wei; Ge Wei; Xia Ling; Li Hongliang; Song Shaoxian;

  • 作者单位

    Wuhan Univ Technol Hubei Key Lab Mineral Resources Proc & Environm Luoshi Rd 122 Wuhan 430070 Hubei Peoples R China;

    Wuhan Univ Technol Sch Resources & Environm Engn Luoshi Rd 122 Wuhan 430070 Hubei Peoples R China;

    Wuhan Univ Technol Sch Resources & Environm Engn Luoshi Rd 122 Wuhan 430070 Hubei Peoples R China;

    Wuhan Univ Technol Hubei Key Lab Mineral Resources Proc & Environm Luoshi Rd 122 Wuhan 430070 Hubei Peoples R China;

    Taiyuan Univ Technol Coll Min Engn Taiyuan 030024 Peoples R China;

    Wuhan Univ Technol Hubei Key Lab Mineral Resources Proc & Environm Luoshi Rd 122 Wuhan 430070 Hubei Peoples R China|Wuhan Univ Technol Sch Resources & Environm Engn Luoshi Rd 122 Wuhan 430070 Hubei Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Montmorillonite nanosheets; Carboxymethyl cellulose; Hydrogel; Methylene blue;

    机译：Montmorillonite Nanosheets;羧甲基纤维素;水凝胶;亚甲基蓝色;

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