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Journal of Nanomaterials
/
2023
/
Article
/
Tab 2
/
Research Article
Tailoring of Ag
3
PO
4
-Anchored Hydroxyapatite Nanophotocatalyst with Tunable Particle Size by a Facile Ion-Exchange Method for Organic Textile Dyes Photodegradation
Table 2
Kinetic studies of HA_Ag
3
PO
4
(c) of the degradation of different dyes.
Dyes
Catalyst concentration
(g L
−1
)
Zero order
C
0
−
C
=
k
0
t
First order
ln (
C
0
/
C
) =
k
1
t
Second order
(1/
C
) − (1/
C
0
) =
k
2
t
k
0
(min
−1
)
R
2
k
1
(min
−1
)
R
2
k
2
(min
−1
)
R
2
Sunfix Red (SR) S3B 150%
1
0.005
0.92857
0.07324
1
0.88889
1
Sunzol Black (SB) DN conc.
1
0.00427
0.74598
0.042
0.92443
0.45961
0.95049
Methylene blue (MB)
1
0.00989
0.821
0.03927
0.98461
0.40652
0.74271
Rhodamine B (RhB)
1
0.01059
0.98678
0.01343
0.93367
0.01983
0.77052
Cocktail (CT)
1
0.00462
0.74382
0.02544
0.96133
0.24373
0.69454