Fig. 7
Response surface plots for the CCD for silica extraction as a function of: (A) NaOH conc. and temperature (at time 2 h.) (B) NaOH conc. and time (at temperature 90 °C).
Fig. 7 | Scientific Reports
Response surface plots for the CCD for silica extraction as a function of: (A) NaOH conc. and temperature (at time 2 h.) (B) NaOH conc. and time (at temperature 90 °C).
