In this work, a new nanocomposite based on crosslinked Glycerol Dimethacrylate (GDMA) and the mesoporous silica MCM-41 was prepared. The GDMA is first synthesized by the ring opening of glycidyl methacrylate (GMA) using methacrylic anhydride (MA) and promoted by a new solvent-free green catalysis process at room temperature. The nanocomposites are further obtained by in-situ polymerization of the GDMA in the channels of the mesoporous silica and then tested for the removal of methylene blue (MB) dye. Effect of polymer content, adsorbent mass, contact time and initial dye concentration were studied and discussed in terms of affinity and adsorption efficiency. The results showed that the poly(GDMA) was well immobilized in the internal and external surface of the mesoporous silica MCM-41. The adsorption efficiency of MB dye increased with increasing poly(GDMA) content in which the nanocomposite (NC-3) exhibited the best adsorption capacity of MB dye. The adsorption of MB dye by nanocomposite NC-3 followed Langmuir adsorption isotherm models and pseudo-second-order kinetics. The maximum adsorbed amount of MB dye on nanocomposite NC-3 is 111.11 mg/g.

在这项工作中，基于交联的二甲基丙烯酸甘油酯（GDMA）和介孔二氧化硅MCM-41制备了一种新的纳米复合材料。GDMA首先使用甲基丙烯酸酐（MA）通过甲基丙烯酸缩水甘油酯（GMA）的开环合成，并在室温下通过新的无溶剂绿色催化工艺进行促进。通过在介孔二氧化硅通道中原位聚合GDMA进一步获得纳米复合材料，然后测试亚甲基蓝（MB）染料的去除。研究了聚合物含量，吸附剂质量，接触时间和初始染料浓度的影响，并根据亲和力和吸附效率进行了讨论。结果表明，聚（GDMA）很好地固定在中孔二氧化硅MCM-41的内外表面。MB染料的吸附效率随聚（GDMA）含量的增加而增加，其中纳米复合材料（NC-3）表现出最佳的MB染料吸附能力。纳米复合材料NC-3对MB染料的吸附遵循Langmuir吸附等温线模型和拟二级动力学。纳米复合材料NC-3上MB染料的最大吸附量为111.11 mg / g。