Fig. 5
High-resolution Cu2p spectra and their fits of CuO NPs samples after 48 h reaction with As(III) under the same As(III) concentration (10 mg L−1) at pH 6 (a), 7 (b), 8 (c), 9 (d), 10 (e), 11 (f) in the open system
Fig. 5 | Geochemical Transactions