Concentration effect of hydroxylammonium chloride Fig

3.4. Optical properties
Fig. 8. UV–vis SKLB610 spectra of BOC001-59 and BOC001-95 (a, inset shows the band gap determination) and changes of band gap shift as a function of width of BiOCl predicted by the Brus model at different reduced effective mass of exitions, μ = (1/m = 1/me + 1/mh) and dielectric constant κ = 6.74 [39].Figure optionsDownload full-size imageDownload as PowerPoint slide
3.5. Sorption kinetics and thermodynamics
Fig. 9. Sorption kinetics of BOC001-59 and BOC001-95 for RhB (with initial pH 5) at 299 K (a) and 286 K (b); a schematic illustration of the enhanced sorption capacity onto BOC001-59 compared with BOC001-95 (c).Figure optionsDownload full-size imageDownload as PowerPoint slide
Table 1.
Constants for the thigmotropism pseudo 1st -order and 2nd -order kinetics for RhB adsorption on BOC001-59 and BOC001-95 at 299 K and 286 K.CatalystTemperature(K)First-order kineticsSecond-order kineticsk1(min−1)qeq(mg g−1)r2k2(g mg −1 min−1)v0(mg g−1 min−1)r2BOC001-592990.725.570.9790.103.470.9942860.626.960.9730.063.380.994BOC001-952990.643.590.9760.131.850.9952860.435.450.9850.051.750.997Full-size tableTable optionsView in workspaceDownload as CSV