NF/PDMA/MnO2-Co电容电极对低浓度Pb2+的电吸附特性

唐长斌, 牛浩, 黄平, 王飞, 张玉洁, 薛娟琴

Electrosorption Characteristics of NF/PDMA /MnO2-Co Capacitor Electrode for Pb2+ in a Dilute Solution of Lead Ions

TANG Changbin, NIU Hao, HUANG Ping, WANG Fei, ZHANG Yujie, XUE Juanqin

表1 准一级和准二级动力学拟合Pb2+吸附参数

Table 1 Pb2+ adsorption parameters in according to pseudo first-order and pseudo second-order kinetics fitting for Pb2+ adsorption

Electrodes Co/mg·L-1 qexp/mg·g-1 Pseudo first-order kinetics Pseudo second-order kinetics k1/min-1 qcal/mg·g-1 R2 k2/g·mg-1 min-1 qcal/mg·g-1 R2 NF/MnO2-Co 20 20.1 0.0413 30.5 0.9348 0.000402 36.1 0.9958 NF/PDMA 20 34.1 0.0523 63.2 0.9366 0.000308 57.5 0.9788 NF/PDMA/MnO2-Co 20 59.9 0.0340 42.3 0.9940 0.000896 69.4 0.9967