Cellulose nanocrystals (CNCs) extracted from jute fibers are moderately high in length (up to 1200 nm) and diameter (up to 90 nm). Poly(N,N-dimethylacrylamide-co-3-methacryloxypropyltrimethoxysilane) (pSiDm) is a custom made copolymer with trimethoxy silane groups at one end which facilitates to react with cellulose in an aqueous solution. A very simple, efficient, rapid, and eco-friendly method was developed to prepare j-CNC reinforced pSiDm hydrogel to remove methylene blue (MB) dye from an aqueous solution. The reaction between j-CNCs and pSiDm in the hydrogel was revealed by the increased intensity ratio of –OH band to C–H band and shifting of a peak for C=O from 1604 cm⁻¹ to 1608 cm⁻¹ in the FT-IR spectrum of the hydrogel compared to those of the copolymer. Glass transition temperature of the copolymer increases from 99 to 111 °C after being applied into the hydrogel. The prepared hydrogel showed a significant swelling at a ratio of 16 g/g in deionized water. In good accordance with the Langmuir adsorption isotherm, a maximum adsorption value of MB onto the hydrogel was achieved 131.58 mg/g. Kinetic studies of the adsorption process fit well with a pseudo-second-order reaction model. The j-CNCs/pSiDm hydrogel is a moderately resilient and completely biodegradable material to be utilized for the adsorption of cationic toxic materials from waste effluent.

从黄麻纤维中提取的纤维素纳米晶体（CNC）的长度（至多1200 nm）和直径（至多90 nm）适度高。聚（N，N-二甲基丙烯酰胺-co -3-甲基丙烯酰氧基丙基三甲氧基硅烷）（p SiDm）是一种定制共聚物，该共聚物的一端具有三甲氧基硅烷基，有助于与纤维素在水溶液中反应。开发了一种非常简单，高效，快速且环保的方法来制备j-CNC增强的p SiDm水凝胶，以从水溶液中去除亚甲基蓝（MB）染料。通过增加–OH谱带与C–H谱带的强度比以及C = O的峰从1604 cm ^-1偏移，揭示了j-CNC与p SiDm在水凝胶中的反应。与共聚物相比，在水凝胶的FT-IR光谱中达到1608 cm ^-1。应用于水凝胶后，共聚物的玻璃化转变温度从99°C升高至111°C。所制备的水凝胶在去离子水中以16 g / g的比例显示出明显的溶胀。很好地符合Langmuir吸附等温线，MB在水凝胶上的最大吸附值达到131.58 mg / g。吸附过程的动力学研究与拟二级反应模型非常吻合。j- CNCs / p SiDm水凝胶是一种中等弹性且完全可生物降解的材料，可用于从废水中吸附阳离子有毒材料。