酸-碱改性粉煤灰吸附剂的制备及其对染料的去除性能

王琰, 张昊, 常娜, 王海涛

Preparation of Acid-alkali Modified Coal Fly Ash Adsorbent and Its Removal Performance on Dyes

WANG Yan, ZHANG Hao, CHANG Na, WANG Haitao

表4 MCFA吸附4种染液的动力学拟合参数

Table 4 Kinetic fitting parameters of adsorption of four dyes by MCFA

Model Parameters Basic violet Basic green Congo red Methyl violet Pseudo-first-order K1 / min-1 5.520 × 10-2 2.223 × 10-1 2.670 × 10-1 1.386 × 10-1 qe / mg·g-1 3.4697 1.8104 2.7114 1.4374 R2 0.6420 0.2461 0.9577 0.8848 Pseudo-second-order K2 / g·(mg·min)-1 1.006 × 10-3 1.335 × 10-3 8.590 2.469 × 10-4 qe / mg·g-1 250.00 250.00 263.16 256.41 R2 0.9999 0.9999 0.9809 0.9980