Figure 4

Influence of contact time on Cr(VI) sorption by IMC800-1 (a), the fit results of Langmuir and Freundlich models for IMC800-1 (b–d).
Influence of contact time on Cr(VI) sorption by IMC800-1 (a), the fit results of Langmuir and Freundlich models for IMC800-1 (b–d).