International Journal of Chemical Engineering / 2021 / Article / Tab 4

Research Article

Mesoporous Carbon from Optimized Date Stone Hydrochar by Catalytic Hydrothermal Carbonization Using Response Surface Methodology: Application to Dyes Adsorption

Table 4

Parameter of the adsorption isotherms for MB and OM at 25°C.

Isothermal modelParametersBMOM

LangmuirQm (mg g−1)657.89384.62
KL (L mg−1)0.0980.329
R20.830.89
RL range0.012–0.290.0036–0.0108

FreundlichKF (mg/g (1/mg))407.320265.49606
1/nF0.08130.0587
R20.820.83

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