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. 2019 Nov 28;9(12):1699. doi: 10.3390/nano9121699

Figure 4.

Figure 4

Ultraviolet–visible (UV–vis) spectrum of a mixture containing ~8 × 10−2 g dm−3 of CV and Ce(III) after the treatment with Mt at pH 3.0 (black line) and after the subsequent with Mt at pH 7.0 (red line).