硝酸酸化生物炭强化去除水中Pb（Ⅱ）和Cd（Ⅱ）的特性

万顺利,李燕,陈卫旸,唐贵,王玉

Enhanced removal of Pb(Ⅱ) and Cd(Ⅱ) from water by nitric acid treated biochar

Shunli Wan,Yan Li,Weiyang Chen,Gui Tang,Yu Wang

图3 Pb（Ⅱ）（a）、Cd（Ⅱ）（b）的吸附等温线，内扩散模型拟合的A-BC吸附动力学曲线（c），基于菲克第二定律扩散模型拟合的A-BC吸附动力学曲线（d）

Fig.3 Adsorption isotherm of Pb(Ⅱ)(a) and Cd(Ⅱ)(b), sorption kinetics onto A-BC simulated by intra-particle diffusion model(c), the model based on Fick's second law(d)