School of Chemistry and Chemical Engineering, Southwest University, Tiansheng Road NO. 2, Chongqing 400715, PR China.
School of Chemistry and Chemical Engineering, Southwest University, Tiansheng Road NO. 2, Chongqing 400715, PR China.
Bioresour Technol. 2017 Dec;245(Pt A):649-655. doi: 10.1016/j.biortech.2017.09.016. Epub 2017 Sep 5.
Developing versatile materials for effective water purification is significant for environment and water source protection. Herein, a versatile bio-based material (CH-PAA-T) was reported by simple thermal cross-linking chitosan and polyacrylic acid which exhibits excellent performances for removing insoluble oil, soluble toxic dyes and heavy metal ions from water, simultaneously. The adsorption capacities are 990.1mgg for methylene blue (MB) and 135.9mgg for Cu, which are higher than most of present advanced absorbents. The adsorption towards organic dyes possesses high selectivity which makes CH-PAA-T be able to efficiently separate dye mixtures. The stable superoleophobicity under water endows CH-PAA-T good performance to separate toluene-in-water emulsion stabilized by Tween 80. Moreover, CH-PAA-T can be recycled for 10 times with negligible reduction of efficiency. Such versatile bio-based material is a potential candidate for water purification.
开发多功能材料以进行有效的水净化对于环境和水源保护具有重要意义。在此，通过简单的热交联壳聚糖和聚丙烯酸报告了一种多功能生物基材料（CH-PAA-T），其在同时从水中去除不溶性油、可溶性有毒染料和重金属离子方面表现出优异的性能。其对亚甲基蓝（MB）的吸附容量为 990.1mgg，对 Cu 的吸附容量为 135.9mgg，高于大多数现有先进的吸附剂。对有机染料的吸附具有高选择性，这使得 CH-PAA-T 能够有效地分离染料混合物。在水下稳定的超疏油性赋予 CH-PAA-T 良好的性能，使其能够分离由 Tween 80 稳定的甲苯-水乳液。此外，CH-PAA-T 可以回收 10 次，效率几乎没有降低。这种多功能生物基材料是水净化的潜在候选材料。
