评价腈基乙酸改性纤维素膜对亚甲基蓝的吸附作用。
Evaluation of nitriloacetic acid modified cellulose film on adsorption of methylene blue.
机构信息
Shandong Provincial Key Laboratory of Fine Chemicals, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
Shandong Provincial Key Laboratory of Fine Chemicals, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
出版信息
Int J Biol Macromol. 2018 Jul 15;114:400-407. doi: 10.1016/j.ijbiomac.2018.03.146. Epub 2018 Mar 26.
A novel composite film (MCαN) based on microcrystalline cellulose (MCC) and nitrilotriacetic acid anhydride (NTAA) was prepared via casting method for the adsorption of methylene blue (MB) from aqueous solution. FT-IR, XRD, elemental analysis and TGA analysis demonstrated the success of modification. The swelling behavior, mechanical properties and MB adsorption performance of the modified MCαN films were improved obviously. The recycling study illustrated that MC2N film could be recycled and exhibited constant adsorption performance for five successful runs. In addition, mechanism study found that adsorption behavior of the composite films was better consistent with the pseudo-second order kinetic model and the Langmuir model. All the results suggested that the MCαN films could be considered as a promising candidate for dye wastewater treatment.
一种基于微晶纤维素（MCC）和氮三乙酸酐（NTAA）的新型复合膜（MCαN）通过浇铸法制备，用于从水溶液中吸附亚甲基蓝（MB）。FT-IR、XRD、元素分析和 TGA 分析表明修饰成功。改性 MCαN 薄膜的溶胀行为、力学性能和 MB 吸附性能得到明显改善。回收研究表明，MC2N 薄膜可以回收，并在五次成功运行中表现出恒定的吸附性能。此外，机理研究发现，复合膜的吸附行为更符合准二级动力学模型和朗缪尔模型。所有结果表明，MCαN 薄膜可用作染料废水处理的一种有前途的候选材料。
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