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3 ARB对MB的等温吸附拟合参数

Table 3 Isothermal adsorption fitting parameters of ARB for MB

生物炭 T/K Langmuir模型 Freundlich模型 Temkin模型 qm KL R2 1/n KF R2 c KT R2 ARB300 298 46.67 2.196 9 0.963 7 0.0173 43.062 2 0.822 7 4.178 3 0.257 4 0.875 3 308 53.16 2.102 1 0.962 4 0.0213 48.194 1 0.687 4 48.036 3 1.116 8 0.696 6 318 56.67 4.070 9 0.981 6 0.0165 52.723 7 0.761 1 52.637 7 0.922 7 0.768 6 ARB500 298 79.88 1.141 9 0.993 7 0.0689 59.423 4 0.745 9 57.848 6 5.164 8 0.780 0 308 86.23 1.243 6 0.979 5 0.0797 61.886 2 0.824 7 60.145 9 6.314 8 0.857 2 318 91.98 1.822 4 0.982 5 0.0762 67.580 1 0.787 0 66.209 8 6.431 8 0.823 6 ARB700 298 86.51 2.958 7 0.958 2 0.0616 67.688 7 0.776 7 66.995 3 4.945 0 0.804 3 308 91.79 4.153 6 0.984 3 0.0639 71.735 6 0.799 1 71.187 4 5.414 3 0.833 9 318 97.78 10.047 5 0.964 6 0.0571 79.366 4 0.722 7 79.221 5 5.213 9 0.767 6