One-pot synthesis of C-dots/UiO-66-NH2 with enhanced photocatalytic activity for degrading ketoprofen

被引：21

作者：

Zhu, Guiliang ^{[1
]}

Feng, Sheng ^{[1
]}

Feng, Shanshan ^{[1
]}

Zhang, Zhihui ^{[2
]}

机构：

[1] Changzhou Univ, Sch Environm & Safety Engn, Changzhou 213164, Jiangsu, Peoples R China

[2] Changzhou Univ, Jiangsu Key Lab Adv Catalyt Mat & Technol, Changzhou 213164, Jiangsu, Peoples R China

来源：

MATERIALS LETTERS | 2019年 / 246卷

基金：

中国国家自然科学基金;

关键词：

Carbon materials; UiO-66-NH2; Composite materials; Photocatalysis; Ketoprofen; HYDROTHERMAL SYNTHESIS; NANOCOMPOSITES; REDUCTION;

D O I：

10.1016/j.matlet.2019.02.105

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

C-dots and metal organic frameworks (MOFs) have a wide range of applications in the field of photocatalysis. Here, C-dots/UiO-66-NH2 composites were successfully synthesized by a simple one-pot method. The synthesized samples were characterized by XRD, Raman, SEM, TEM, EDS, Mapping, UV-vis DRS, and PL spectra. Compared with UiO-66-NH2, the absorption edge of C-dots/UiO-66-NH2 extended from 439 nm to 534 nm. The experiments of photocatalytic degrading ketoprofen under visible-light irradiation (lambda >= 420 nm) showed that C-dots/UiO-66-NH2 demonstrated stronger photocatalytic activity than UiO-66-NH2 for degrading ketoprofen (1.87 times that of UiO-66-NH2) and degraded 92% in 1 h. The improved photocatalytic activity was mostly caused by the reduced band gap and interfaces between UiO-66-NH2 and C-dots, absorbing more visible light and inhibiting electron-holes recombination. (C) 2019 Published by Elsevier B.V.

引用

页码：36 / 39

页数：4

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