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首页> 外文期刊>Journal of Applied Polymer Science >Preparation of a hydroxyethyl-titanium dioxide-carboxymethyl cellulose hydrogel cage and its effect on the removal of methylene blue
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Preparation of a hydroxyethyl-titanium dioxide-carboxymethyl cellulose hydrogel cage and its effect on the removal of methylene blue

机译：二甲基二氧化钛 - 羧甲基纤维素水凝胶笼的制备及其对亚甲基蓝色去除的影响

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摘要

A novel TiO2 hydrogel cage model was built for the removal of methylene blue (MB), an organic pollutant. This TiO2 hydrogel cage was prepared with the biomass materials of hydroxyethyl cellulose (HEC) and carboxymethyl cellulose (CMC), and this hydrogel cage structure was characterized by scanning electron microscopy, transmission electron microscopy, and X-ray diffraction. The contents of the encased TiO2 and its swelling properties with different CMC proportions of this hydrogel cage were studied to obtain a suitable crosslinking network structure and optimal synthesis conditions. Compared to an equivalent amount of pure TiO2, the much higher removal efficiency of MB with our prepared TiO2 hydrogel cage was attributed to the synergistic effect of the photocatalytic degradation for TiO2 and the adsorption enrichment for cellulose hydrogels. Furthermore, the adsorption kinetics of the intraparticle diffusion model were used to study the adsorption enrichment process of the TiO2 hydrogel cage. In addition, on the basis of the results of photocatalytic degradation and recycling experiments, excellent performances with respect to self-cleaning, regenerative ability, and easy recovery, were shown for this HEC-TiO2-CMC cage material, which demonstrated ideal application potential for MB removal. (c) 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44925.
机译：建立了一种新型TiO2水凝胶笼模型，用于除去亚甲基蓝（MB），有机污染物。通过羟乙基纤维素（HEC）和羧甲基纤维素（CMC）的生物质材料制备该TiO 2水凝胶笼，并且该水凝胶笼结构通过扫描电子显微镜，透射电子显微镜和X射线衍射来表征。研究了封装的TiO 2的含量及其具有不同CMC比例的该水凝胶笼的溶胀性能，得到了合适的交联网络结构和最佳合成条件。与等同量的纯TiO 2相比，用我们制备的TiO2水凝胶笼的MB的更高较高的去除效率归因于TiO 2的光催化降解的协同效应和纤维素水凝胶的吸附富集。此外，用于研究TiO2水凝胶笼的吸附性富集过程的吸附动力学。此外，基于光催化降解和再循环实验的结果，该HEC-TiO2-CMC笼材料显示出相对于自清洁，再生能力和易于恢复的优异性能，这表明了理想的应用潜力删除MB。 （c）2017 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2017,134,44925。

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