Research Article

Preparation of BSA-ZnWO4 Nanocomposites with Enhanced Adsorptional Photocatalytic Activity for Methylene Blue Degradation

Table 1

Comparison of removal efficiency of BSA-ZnWO4 in different reaction systems. [MB]  mol dm−3, catalyst dosage = 50 mg/100 mL, pH = 5, temperature: °C.

Reaction systemOverall removal efficiency (%) (10−4 s−1)Removal efficiency due to adsorption (%) (10−4 s−1)

BSA-ZnWO4/A + P999.046.94.3
BSA-ZnWO4/A − P756.0454.1
BSA-ZnWO4/DA453.0454.1

A + P means simultaneous adsorption and photocatalysis.
A − P means adsorption followed by photocatalysis.
DA means dark adsorption.
means rate constant for overall reaction.
means rate constant for adsorption process.