Water pollution has been an alarming concern for researchers due to its hazard to life, human health, and environment. Chitosan and lignocellulose materials have been harnessed for the purification of contaminated water. The objective of this study was to investigate the potential use of chitosan hydrogel filled with activated carbon nanoparticles (ACNPs) and non-activated carbon nanoparticles (n-ACNPs) for water purification. The results of this study revealed that both ACNPs and n-ACNPs were comprised by poly- and single crystals with an average nanofiber diameter of 22.27 nm whereas n-ACNPs were aggregated with diameter size of above 100 nm and was dominated with amorphous region. Limited voids were observed in chitosan/ACNPs hydrogel but n-ACNPs added in chitosan hydrogel were aggregated to form voids. With the addition of ACNPs and n-ACNPs, there was not dramatic change in IR wavenumber. The addition of high ACNPs concentration increased crystallinity index (CrI) of chitosan hydrogel but high addition of n-ACNPs concentration decreased CrI’s chitosan hydrogel. After chitosan/ACNPs and chitosan/n-ACNPs hydrogel were submerged with heavy metals, IR spectra were altered, and the internal surfaces of these hydrogels became different. Both chitosan/ACNPs and chitosan/n-ACNPs hydrogel were able to absorb Fe and Zn effectively over heavy metals of Pb and Cu. Chitosan hydrogel was more effective to kill Escherichia coli than chitosan/ACNPs and chitosan/n-ACNPs hydrogel.

由于水污染会对生命，人类健康和环境造成危害，因此一直困扰着研究人员。壳聚糖和木质纤维素材料已被用于净化污水。这项研究的目的是研究填充有活性炭纳米颗粒（ACNPs）和非活性炭纳米颗粒（n-ACNPs）的壳聚糖水凝胶在水净化中的潜在用途。这项研究的结果表明，ACNPs和n-ACNPs均由平均纳米纤维直径为22.27 nm的多晶体和单晶体组成，而n-ACNPs聚集的直径尺寸大于100 nm，并以非晶区为主。在壳聚糖/ ACNPs水凝胶中观察到有限的空隙，但在壳聚糖水凝胶中添加的n-ACNPs聚集形成空隙。通过添加ACNP和n-ACNP，红外波数没有明显变化。高浓度ACNPs的添加增加了壳聚糖水凝胶的结晶度（CrI），但是高浓度n-ACNPs的添加减少了CrI的壳聚糖水凝胶的结晶度。壳聚糖/ ACNPs和壳聚糖/ n-ACNPs水凝胶被重金属浸没后，红外光谱发生变化，这些水凝胶的内表面变得不同。壳聚糖/ ACNPs和壳聚糖/ n-ACNPs水凝胶都能够有效吸收重金属Pb和Cu上的Fe和Zn。壳聚糖水凝胶更有效地杀死 壳聚糖/ ACNPs和壳聚糖/ n-ACNPs水凝胶被重金属浸没后，红外光谱发生变化，这些水凝胶的内表面变得不同。壳聚糖/ ACNPs和壳聚糖/ n-ACNPs水凝胶都能够有效吸收重金属Pb和Cu上的Fe和Zn。壳聚糖水凝胶更有效地杀死 壳聚糖/ ACNPs和壳聚糖/ n-ACNPs水凝胶被重金属浸没后，红外光谱发生变化，这些水凝胶的内表面变得不同。壳聚糖/ ACNPs和壳聚糖/ n-ACNPs水凝胶都能够有效吸收重金属Pb和Cu上的Fe和Zn。壳聚糖水凝胶更有效地杀死大肠杆菌比壳聚糖/ ACNPs和壳聚糖/ n-ACNPs水凝胶更大。