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Water-soluble natural organic acid for highly efficient photoreduction of hexavalent chromium
Journal of Chemical Sciences ( IF 1.7 ) Pub Date : 2020-08-28 , DOI: 10.1007/s12039-020-01810-4 Hongbo He , Zhuangzhu Luo , Changlin Yu
中文翻译:
水溶性天然有机酸,可高效还原六价铬
更新日期:2020-08-28
Journal of Chemical Sciences ( IF 1.7 ) Pub Date : 2020-08-28 , DOI: 10.1007/s12039-020-01810-4 Hongbo He , Zhuangzhu Luo , Changlin Yu
Abstract
Successful studies have demonstrated that citric acid can significantly improve the photocatalytic reduction efficiency of Cr(VI) over semiconductor photocatalysts as a sacrificial donor. Here, we studied the Cr(VI) photoreduction performance of citric acid monohydrate (CAM) without any semiconductor photocatalysts. Water-soluble CAM displays extremely efficient photoreduction activity for Cr(VI), which is attributed to the synergism of H+, C5H7O5COO− and hv. Hence, the role of citric acid in photoreduction of Cr(VI) may be underestimated in the previous studies. This work may open a new perspective for the development of low-cost, high-efficient and green water-soluble materials applied in heavy metal ion wastewater treatment.Graphic abstract
Here, the water-soluble citric acid monohydrate (CAM) for application in photoreduction of Cr(VI) is reported. The results suggest that Cr(VI) photoreduction over CAM attributes to the synergism of H+, C5H7O5COO− and hv. Moreover, CAM is a promising Cr (VI) photoreductant instead of a humble sacrificial donor.中文翻译:
水溶性天然有机酸,可高效还原六价铬