油页岩灰基磁性分子筛的制备及其对亚甲基蓝的吸附性能

段玉, 王倩, 刘宏臣, 车远军, 石磊, 白慧娟

Methylene Blue Adsorption Performance of Magnetic Zeolite Prepared from Oil Shale Ash

DUAN Yu, WANG Qian, LIU Hongchen, CHE Yuanjun, SHI Lei, BAI Huijuan

表5 Fe3O4@NaX型分子筛吸附MB的热力学参数

Table 5 Thermodynamic parameters for MB adsorption on the Fe3O4@NaX zeolite

Temperature / K Kc ΔG / kJ·mol-1 ΔH / kJ·mol-1 ΔS / J·mol-1·K-1 298.15 32.1413 -8.6019 -16.3922 -26.1432 308.15 26.4178 -8.3880 318.15 24.4721 -8.2136 328.15 16.9428 -7.7205 338.15 12.8492 -7.1782