College of Chemistry and Chemical Engineering, Southwest Petroleum University, 8 Xindu Road, Xindu, Chengdu, 610500, China.
College of Chemistry and Chemical Engineering, Southwest Petroleum University, 8 Xindu Road, Xindu, Chengdu, 610500, China.
Carbohydr Polym. 2019 May 1;211:308-314. doi: 10.1016/j.carbpol.2019.01.112. Epub 2019 Feb 1.
The galacylhydrazine modified guar gum (GG-GH) was prepared through oxidation and condensation. GG-GH demonstrated highly efficient removing performance for organic dyes in large volume of water sample solutions, a rapid uptake of dyes was observed and the equilibrium is achieved in 0.5 h. The maximum adsorption capacity for MB, RhB, MeO and BrB were 1522.2 mg g, 1359.96 mg g, 868.83 mg gand 904.7 mg g at room temperature according to the Langmuir adsorption isotherm(R > 0.977). The removal percentage still remains high(>95%) after ten filtration-regeneration cycles, suggesting GG-GH is an excellent gum-based materials for the water treatment with high recyclability and long life.
通过氧化和缩合反应制备了半乳糖酰肼改性瓜尔胶（GG-GH）。在大量水样溶液中，GG-GH 对有机染料表现出高效的去除性能，观察到染料的快速吸收，并且在 0.5 h 内达到平衡。根据 Langmuir 吸附等温线（R > 0.977），室温下对 MB、RhB、MeO 和 BrB 的最大吸附容量分别为 1522.2、1359.96、868.83 和 904.7 mg/g。经过十次过滤-再生循环后，去除率仍保持在较高水平（>95%），表明 GG-GH 是一种具有高可回收性和长寿命的优异胶基材料，可用于水处理。
