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Table 1

Apparent rate constants (kapp), initial degradation rates (r), and correlation coefficients (R2) for paraquat degradation using different types of TiO2

TiO2Photocatalytic conditionkapp (min−1)r (mM/min)R2
– UV + 10 mM H2O2 0.0228 0.0044 0.9990 
TiO2 UV + 10 mM H2O2 0.0408 0.0106 0.8391 
TiO2/C UV only 0.0014 0.0004 0.9080 
TiO2/C UV + 10 mM H2O2 0.0584 0.0130 0.9203 
TiO2Photocatalytic conditionkapp (min−1)r (mM/min)R2
– UV + 10 mM H2O2 0.0228 0.0044 0.9990 
TiO2 UV + 10 mM H2O2 0.0408 0.0106 0.8391 
TiO2/C UV only 0.0014 0.0004 0.9080 
TiO2/C UV + 10 mM H2O2 0.0584 0.0130 0.9203 
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