水铁矿负载甘蔗渣吸附磷酸根开放性综合化学实验

余军霞, 周如意, 池汝安

A Comprehensive Chemistry Experiment on the Adsorption of Phosphate by Ferrihydrite Loaded Sugarcane Bagasse

Junxia Yu, Ruyi Zhou, Ruan Chi

表2 负载甘蔗渣和甘蔗渣的吸附动力学曲线非线性拟合结果

模型 准一级模型 Pseudo-first-order model 准二级模型Pseudo-second-order model 颗粒内扩散模型 Intra-particle-diffusion model 参数 k1/min-1 qe/(mg∙g-1) R2 k2/(g∙mg-1∙min-1) qe/(mg∙g-1) R2 Ki/(mg∙g-1∙min-1/2) I/(mg∙g-1) R2 负载甘蔗渣 0.86 57.7 0.992 0.78 59.2 0.999 1.84 43.2 0.535 甘蔗渣 0.05 0.033 0.951 15.5 0.039 0.951 0.003 0.007 0.861