Department of Applied Chemistry, M J P Rohilkhand University, Bareilly 243006, U.P., India.
Department of Applied Chemistry, M J P Rohilkhand University, Bareilly 243006, U.P., India.
Int J Biol Macromol. 2019 Oct 15;139:752-759. doi: 10.1016/j.ijbiomac.2019.08.058. Epub 2019 Aug 7.
A novel binary crosslinked material based on chitosan [chit-cl-Poly (AA-co-Am)] has been synthesized through crosslinking employing ceric ammonium nitrate (CAN) initiator under N atmosphere for the effective removal of methyl orange dye as well as antibacterial studies. The synthesized adsorbent was characterized by FT-IR, SEM, XRD and TGA techniques. The effect of various process parameters such as pH, time, adsorption dose, and temperature on the removal of methyl orange was investigated. The isotherm data of the adsorption experiments obey the classical Freundlich adsorption isotherm while the kinetic data followed the pseudo-second-order kinetics. The antibacterial behavior of optimized samples was evaluated by the determination of maximum inhibitor growth of bacteria such as Escherichia coli (E. coli), Staphylococcus aureus and (S. aureus) Pseudomonas aeruginosa (P. aeruginos). The present study provides substantial evidence to prove beyond doubt that material based on chitosan [chit-cl-Poly (AA-co-Am)] seems to have the potential for effective removal of dyes from aqueous streams which can be extended to systems of significant importance.
通过使用硝酸铈铵 (CAN) 引发剂在 N 气氛下交联合成了一种新型的基于壳聚糖 [chit-cl-Poly (AA-co-Am)] 的双交联材料，用于有效去除甲基橙染料和抗菌研究。通过 FT-IR、SEM、XRD 和 TGA 技术对合成的吸附剂进行了表征。考察了各种工艺参数，如 pH 值、时间、吸附剂量和温度对甲基橙去除的影响。吸附实验的等温线数据符合经典的 Freundlich 吸附等温线，而动力学数据遵循准二级动力学。通过测定大肠杆菌 (E. coli)、金黄色葡萄球菌 (S. aureus) 和铜绿假单胞菌 (P. aeruginosa) 等细菌的最大抑制剂生长，评估了优化样品的抗菌行为。本研究提供了充分的证据，毫无疑问地证明了基于壳聚糖 [chit-cl-Poly (AA-co-Am)] 的材料似乎具有从水相中有效去除染料的潜力，这可以扩展到具有重要意义的系统中。
