TY - JOUR
T1 - In situ assembly of CQDs/Bi2WO6 for highly efficient photocatalytic degradation of VOCs under visible light
AU - Liu, Yangqing
AU - Zhu, Changjun
AU - Sun, Jingwen
AU - Ge, Yan
AU - Song, Fujiao
AU - Xu, Qi
AU - Liu, Yangqing
AU - Zhu, Changjun
AU - Song, Fujiao
AU - Zhu, Changjun
AU - Sun, Jingwen
AU - Ge, Yan
AU - Xu, Qi
N1 - Funding Information:
The authors thank the National Natural Science Foundation of China (21802119), National Key Research and Development Program (2016YFC0209203), the Joint Open Fund of Jiangsu Collaborative Innovation Center for Ecological Building Material and Environmental Protection Equipments and Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province (JH201806), and Funding for school-level research projects of Yancheng Institute of Technology (xjr2019005).
Publisher Copyright:
This journal is © The Royal Society of Chemistry and the Centre National de la Recherche Scientifique.
PY - 2020/2/28
Y1 - 2020/2/28
N2 - A series of carbon quantum dot (CQD)/Bi2WO6 hybrid materials were synthesized via a facile in situ hydrothermal method, where the CQDs were prepared using different carbon sources. As demonstrated by multiple techniques, including XRD, SEM, TEM, XPS, BET, UV-vis, FT-IR, PL and TPR, the visible light absorption wavelength red-shifted, the oxidation ability was enhanced, and the recombination probability of electron-hole pairs was inhibited by incorporating the CQDs in Bi2WO6. Moreover, different carbon source-derived CQD/Bi2WO6 materials exhibited different optical and electronic properties. The CQD/Bi2WO6 materials exhibited excellent activity in the photocatalytic degradation of VOCs under visible light irradiation, among which the CQDs/Bi2WO6 derived from chitosan demonstrated the best activity with 96.9% degradation for gaseous toluene and 97.1% for gaseous formaldehyde within only 120 min. Furthermore, the CQDs/Bi2WO6 showed high stability and reusability.
AB - A series of carbon quantum dot (CQD)/Bi2WO6 hybrid materials were synthesized via a facile in situ hydrothermal method, where the CQDs were prepared using different carbon sources. As demonstrated by multiple techniques, including XRD, SEM, TEM, XPS, BET, UV-vis, FT-IR, PL and TPR, the visible light absorption wavelength red-shifted, the oxidation ability was enhanced, and the recombination probability of electron-hole pairs was inhibited by incorporating the CQDs in Bi2WO6. Moreover, different carbon source-derived CQD/Bi2WO6 materials exhibited different optical and electronic properties. The CQD/Bi2WO6 materials exhibited excellent activity in the photocatalytic degradation of VOCs under visible light irradiation, among which the CQDs/Bi2WO6 derived from chitosan demonstrated the best activity with 96.9% degradation for gaseous toluene and 97.1% for gaseous formaldehyde within only 120 min. Furthermore, the CQDs/Bi2WO6 showed high stability and reusability.
UR - http://www.scopus.com/inward/record.url?scp=85080108858&partnerID=8YFLogxK
U2 - 10.1039/c9nj04957f
DO - 10.1039/c9nj04957f
M3 - Article
AN - SCOPUS:85080108858
SN - 1144-0546
VL - 44
SP - 3455
EP - 3462
JO - New Journal of Chemistry
JF - New Journal of Chemistry
IS - 8
ER -