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Table 1 Apparent, first-order rate constants determined from batch and Q-XAS experiments

From: Catalytic oxidation of arsenite and reaction pathways on the surface of CuO nanoparticles at a wide range of pHs

 

Experiment type

Time period (h)

No. of data points

k (h−1)

R2

In air

As(III)—Batch-pH 6

36

14

0.013

0.96

As(III)—Batch-pH 9

48

14

0.014

0.93

As(III)—Batch-pH 11

36

12

0.14

0.99

In N2

As(III)—Batch-pH 11

10

11

0.012

0.96

In air

As(III)—Q-XAS-pH11

8

376

0.030

0.66

  1. The rate constants of As(III) depletion were determined by linear regression analysis of the noted time-periods for the plots in Additional file 1: Fig. S2
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Geochemical Transactions

ISSN: 1467-4866

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