原位低场核磁共振弛豫法定量监测光催化Cr(Ⅵ)还原反应
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牛星星 1,白志杰 2,杨翼 2,高杨文 2,王雪璐 1,*( ),姚叶锋 1,*( )
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A Quantitative Study of Photocatalytic Reduction of Cr(Ⅵ) by Operando Low-Field NMR Relaxometry
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Xing-xing NIU 1,Zhi-jie BAI 2,Yi YANG 2,Yang-wen GAO 2,Xue-lu WANG 1,*( ),Ye-feng YAO 1,*( )
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图10. Cr(Ⅲ)体系的(a)UV-Vis吸收光谱和(b) 吸光度随Cr(Ⅲ)离子浓度的变化;Cr(Ⅵ)-Cr(Ⅲ)混合体系(Cr(Ⅵ)-Cr(Ⅲ)的浓度梯度从20-0 mg/L到0-20 mg/L)的(c)UV-Vis吸收光谱和(d) 吸光度随混合体系中Cr(Ⅲ)离子浓度的变化
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Fig.10. (a) UV-Vis absorption spectra, and (b) absorbance values variation with Cr(Ⅲ) concentrations in Cr(Ⅲ) systems; (c) UV-Vis absorption spectra, and (d) absorbance values variation with Cr(Ⅲ) concentrations in Cr(Ⅵ)-Cr(Ⅲ) systems with concentration gradients from 20-0 mg/L to 0-20 mg/L
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