وصف البحث
Here, 3,4-dimethylaniline (3,4-DMA) was selected
as a representative organic substance of aniline compounds. A
biochar-titanium dioxide (BC-TiO2) composite was prepared by
the sol−gel method to investigate its adsorption ability toward the
3,4-DMA compound. Simultaneously, the prepared composite’s
adsorption ability and physical and physicochemical properties
were also investigated. The isotherm studies confirmed that the
adsorption of 3,4-DMA on both BC and BC-TiO2 composite
agrees with the Langmuir and Toth adsorption models, which means the formation of a monolayer of 3,4-DMA on the surface. The
maximum adsorption capacity of 3,4-DMA was 322.58 mg g−1 and 285.71mg g−1 for BC and BC-TiO2, respectively. Furthermore,
the adsorption kinetics reveals that the adsorption process of 3,4-DMA on BC and the BC-TiO2 composite is controlled by the
pseudo-second-order kinetic model with an R2 of 0.99.
