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 - 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 -