期刊
MATERIALS RESEARCH BULLETIN
卷 99, 期 -, 页码 349-358出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2017.11.028
关键词
g-C3N4; UiO-66; Photocatalysis; Visible light; Rhodamine B
资金
- National Natural Science Foundation of China [21507086, 41673093, 51508327, 41473108]
- Natural Science Foundation of YangZhou [YZ2015109]
- Shanghai Sailing Program [14YF1409900, 16YF1408100]
- Open Foundation of Key Laboratory of Industrial Ecology, China [KLIEEE-14-08]
In this study, g-C3N4 nanosheets coated UiO-66 nanohybrids were fabricated via a simple solvothermal method. The physicochemical parameters, structural and electrochemical properties of g-C3N4/UiO-66 nanohybrids (CNUO-x) were investigated. The nanohybrids were systematically characterized by XRD, FT-IR, TGA, TEM, SEM, EDS elemental mappings, XPS, NZ adsorption-desorption isotherms, PL and DRS. It was found that the addition of moderate g-C3N4 could enhance the separation and migration rate of photo-induced charges, consequently leading to the increase of photocatalytic efficiency. The CNUO-1 nanohybrid exhibited better photocatalytic activity for the oxidation of Rh B under visible light irradiation, and displayed about 6.0 and 3.3 times faster than that of g-C3N4 and UiO-66, respectively. Meanwhile, the nanohybrid showed excellent stability and reusability in four cyclic experiments. Finally, the increased photocatalytic reaction mechanism was also proposed. center dot O-2(-), h(+) and center dot OH were further found to be the main active contributors.
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