Table 3 The apparent rate constants (k, min− 1) and regression coefficients (R2) obtained from the pseudo-first-order kinetic model for the photocatalytic-degradation of IC dye, using various dosages of the BW1 catalyst and different light sources.

From: Hydrothermal synthesis and structural optimization of Bi2O3/Bi2WO6 nanocomposites for synergistic photodegradation of Indigo Carmine dye

Catalyst dose (g/L)

Kapp (min− 1)

R2

0.5

0.005

0.991

0.7

0.006

0.990

0.9

0.011

0.988

1.2

0.015

0.985

1.5

0.021

0.973

Light source

UV-A

0.011

0.967

UV-B

0.002

0.997

Hg-lamp

0.007

0.978

LED-lamp

0.001

0.955