Department of Applied Chemistry, University of Johannesburg, Johannesburg, South Africa.
Department of Applied Chemistry, University of Johannesburg, Johannesburg, South Africa.
J Colloid Interface Sci. 2017 Jul 1;497:193-200. doi: 10.1016/j.jcis.2017.03.006. Epub 2017 Mar 3.
Magnetic graphene oxide (MGO) nanocomposites have been synthesized by the co-precipitation route. The surface structure of MGO nanocomposites were analyzed by XRD, TEM, SEM, VSM and nitrogen adsorption-desorption instrumental technique. Response surface methodology was used to optimize the removal of methadone by MGO nanocomposites in aqueous solution. Experiments were conducted based on Box-Behnken design (BBD). The influence of three parameters on the removal of methadone was examined using the response surface methodological approach. The significance of independent variables and their interactions were tested by analysis of variance (ANOVA). The optimum pH, adsorbent dose and temperature were found to be 6.2, 0.0098g and 295.7K, respectively. Under these conditions, removal efficiency of methadone was found to be 87.20mg/g.
磁性氧化石墨烯（MGO）纳米复合材料通过共沉淀法合成。采用 XRD、TEM、SEM、VSM 和氮吸附-解吸仪器技术分析了 MGO 纳米复合材料的表面结构。响应面法用于优化 MGO 纳米复合材料在水溶液中对美沙酮的去除。实验基于 Box-Behnken 设计（BBD）进行。使用响应面方法研究了三个参数对美沙酮去除的影响。通过方差分析（ANOVA）检验了自变量及其相互作用的显著性。发现最佳 pH 值、吸附剂剂量和温度分别为 6.2、0.0098g 和 295.7K。在这些条件下，美沙酮的去除效率为 87.20mg/g。
