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Synthesis of a montmorillonite-supported titania nanocomposite with grafted cellulose as a template and its application in photocatalytic degradation
來源:武榮蘭副教授個人網(wǎng)站 發(fā)布日期:2016-04-08
作者:Man, Xiaolin; Wu, Ronglan*; Lv, Henghua; Wang, Wei
關鍵字:adsorption, cellulose and other wood products, colloids
論文來源:期刊
具體來源:Journal of Applied Polymer Science
發(fā)表時間:2015年

We report a study on the synthesis of anatase titania (TiO2) particles with the sol–gel method at room temperature. We immobilized the particles on a grafted-cellulose intercalated montmorillonite (MMT). This nanocomposite, cellulose-g-poly(4-vinyl pyridine)/MMT/TiO2, could be applied in the photocatalytic degradation of organic pollutants efficiently because of the addition of a sorbent, the grafted cellulose. The synthesized nanocomposite was characterized with Fourier transform infrared spectroscopy, X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. Methyl orange was used as a model molecule to study photocatalytic degradation. The nanocomposite exhibited a better photocatalytic activity than in the absence of the grafted cellulose. The kinetics of the photocatalytic degradation could be described by pseudo-first-order rate law.


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