槟榔渣生物炭对水中亚甲基蓝的吸附特性及机制

陈佼, 李晓媛, 刘钰洁, 陆一新

Adsorption characteristics and mechanism of methylene blue in aqueous solution by areca residue biochar

Jiao CHEN, Xiaoyuan LI, Yujie LIU, Yixin LU

表1 ARB吸附MB的准一级、准二级和Elovich动力学模型拟合参数

Table 1 Quasi first-order，quasi second-order and Elovich kinetic model fitting parameters of MB adsorption by ARB

生物炭 qe，exp 准一级动力学模型 准二级动力学模型 Elovich模型 qe k1 R2 qe k2 R2 a k3 R2 ARB300 45.70 42.66 0.098 8 0.936 8 45.96 0.003 1 0.987 6 13.68 6.157 2 0.892 1 ARB500 69.61 65.80 0.139 2 0.873 4 69.78 0.003 2 0.994 2 31.34 7.456 3 0.898 0 ARB700 76.30 73.00 0.162 4 0.803 1 76.79 0.003 6 0.974 5 40.01 7.185 4 0.892 4