19 / 57
Notes:
Volume 3, Issue 2 (Suppl)
Trends in Green chem
ISSN: 2471-9889
Environmental & Green Chemistry 2017
July 24-26, 2017
Page 37
5
th
International Conference on
6
th
International Conference on
July 24-26, 2017 Rome, Italy
Environmental Chemistry and Engineering
Green Chemistry and Technology
&
Preparation of Yb
3+
doped microspherical BiOI and its photocatalytic activity for the degradation of
Rhodamine B in water
Linping Zhang, Zengqiang Ma
and
Ruyi Xie
Donghua University, China
B
ismuth oxychloride (BiOI) has a good visible light responsive property due to their relatively narrowband gap, and its photocatalytic
performance is further improved by doping ytterbium ions (Yb
3+
) which could be attributed to stronger optical absorption in UV-
visible light region, effective separation of the photogenerated electron-hole pairs, and the capacity of Yb
3+
ions to up-convert near-IR
light into visible-light and UV light. In this study, a facile solvothermal method was adopted to synthesize different Yb
3+
ions doped
BiOI photocatalysts. The doped photocatalysts with molar ratios of 0, 0.5, 1, 1.5, 2 and 2.5% Yb
3+
ions were prepared and 2% Yb
3+
ions
doped BiOI exhibited the highest photocatalytic degradation efficiency, which was 2 times higher than that of pure BiOI. As-prepared
photocatalysts were further studied through SEM, XRD, UV–Vis DRS and free radical capture experiments, etc. which indicated that
the doping ions entered into Lattice of BiOI photocatalysts and improved the photocatalytic performance. This work provided some
potential application of Yb
3+
doped BiOI for the degradation of organic contaminants in water.
Biography
Linping Zhang has completed her PhD from the Chinese University of Hong Kong. She is an Associate Professor of Donghua University in China. She has
published more than 45 papers in reputed journals.
zhang_lp@dhu.edu.cnLinping Zhang et al., Trends in Green chem, 3:2
DOI: 10.21767/2471-9889-C1-002