College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, China.
Engineering Research Center for Nanomaterials, Henan University, Kaifeng 475004, Henan, China.
J Nanosci Nanotechnol. 2019 Apr 1;19(4):2147-2153. doi: 10.1166/jnn.2019.15808.
Cellulose/graphene oxide composite membranes (CGCMs) were prepared using a vacuum-filtration method. The CGCMs were then used as filters to remove organic pollutants from wastewater. It was found that the CGCM filters could efficiently and simultaneously achieve wastewater treatment and adsorbent separation. Their adsorption of Rhodamine B (RhB, an organic dye) varied with varying cellulose/graphene oxide mass ratios. The CGCM obtained at a cellulose/graphene oxide mass ratio of 8:1 exhibited the maximum removal efficiency for RhB. The maximum adsorption capacity of the CGCMs for RhB was found to be 86.4 mg/g. In addition, the CGCMs were easily regenerated and the regenerated CGCMs retained good abilities to remove contaminants, which could be significant for their application in wastewater treatment.
纤维素/氧化石墨烯复合膜（CGCMs）采用真空过滤法制备。然后，将 CGCM 用作过滤器，以去除废水中的有机污染物。结果发现，CGCM 过滤器可以高效且同时实现废水处理和吸附剂分离。它们对罗丹明 B（RhB，一种有机染料）的吸附随纤维素/氧化石墨烯质量比的变化而变化。在纤维素/氧化石墨烯质量比为 8:1 时获得的 CGCM 对 RhB 的去除效率最高。CGCMs 对 RhB 的最大吸附容量为 86.4mg/g。此外，CGCMs 易于再生，且再生后的 CGCMs 保留了良好的去除污染物的能力，这对它们在废水处理中的应用具有重要意义。
