Paper
RSC Advances
the lifetime of the excited electrons and holes can be prolonged 10 S. B. Yang, Y. J. Gong, J. S. Zhang, L. Zhan, L. L. Ma,
in the transfer process, inducing higher quantum efficiency,
causing the enhanced photocatalytic activity of the as-prepared
Ag O/g-C N p–n heterojunctions.
Z. Y. Fang, R. Vajtai, X. C. Wang and P. M. Ajayan, Adv.
Mater., 2013, 25, 2452–2456.
11 J. Mao, T. Y. Peng, X. H. Zhang, K. Li, L. Q. Ye and L. Zan,
Catal. Sci. Technol., 2013, 3, 1253–1260.
2
3 4
1
2 A. B. Jorge, D. J. Martin, M. T. S. Dhanoa, A. S. Rahman,
N. Makwana, J. W. Tang, A. Sella, F. Cora, S. Firth,
J. A. Darr and P. F. McMillan, J. Phys. Chem. C, 2013, 117,
Conclusions
In summary, we have successfully fabricated Ag O/g-C N p–n
2
3 4
7
178–7185.
3 G. H. Dong and L. Z. Zhang, J. Mater. Chem., 2012, 22, 1160–
166.
heterojunctions by depositing small Ag O nanoparticles sized of
2
1
1
1
1
5
–15 nm on the surface of g-C N via a facile photochemical
3
4
1
route. The obtained Ag
2
O/g-C
3
N
4
p–n heterojunctions exhibited
4 J. H. Liu, Y. W. Zhang, L. H. Lu, G. Wu and W. Chen, Chem.
Commun., 2012, 48, 8826–8828.
5 B. Chai, T. Y. Peng, J. Mao, K. Li and L. Zan, Phys. Chem.
Chem. Phys., 2012, 14, 16745–16752.
6 F. Z. Su, S. C. Mathew, G. Lipner, X. Z. Fu, M. Antonietti,
S. Blechert and X. C. Wang, J. Am. Chem. Soc., 2010, 132,
enhanced photocatalytic activity toward antibiotic TC-HCl
degradation under visible light irradiation than that of pure g-
C
3
N
4
and Ag
2
O nanoparticles. Such enhanced photocatalytic
O/g-C p–n heterojunctions could be
activity of the Ag
2
3 4
N
attributed to high dispersibility of small Ag O nanoparticles,
2
improved optical absorption property as well as the effective
separation of the photogenerated electrons and holes. Thus, the
Ag O/g-C N p–n heterojunctions can be a promising candidate
2 3 4
for efficient visible light driven photocatalytic systems for
16299–16301.
1
1
1
2
2
2
2
2
2
7 X. F. Chen, J. S. Zhang, X. Z. Fu, M. Antonietti and
X. C. Wang, J. Am. Chem. Soc., 2009, 131, 11658–11659.
8 Y. Di, X. C. Wang, A. Thomas and M. Antonietti,
ChemCatChem, 2010, 2, 834–838.
9 G. Liu, P. Niu, C. H. Sun, S. C. Smith, Z. G. Chen, G. Q. Lu and
H. M. Cheng, J. Am. Chem. Soc., 2010, 132, 11642–11648.
0 Y. J. Zhang, T. Mori, J. H. Ye and M. Antonietti, J. Am. Chem.
Soc., 2010, 132, 6294–6295.
antibiotic residues removal.
Acknowledgements
The authors are grateful to the nancial supports of National
Natural Science Foundation of China (Grant no. 21376051,
1 H. J. Yan and Y. Huang, Chem. Commun., 2011, 47, 4168–
4170.
21306023, 21106017, and 51077013), Natural Science Founda-
2 J. Fu, B. B. Chang, Y. L. Tian, F. N. Xi and X. P. Dong, J. Mater.
Chem. A, 2013, 1, 3083–3090.
3 X. S. Zhou, B. Jin, L. D. Li, F. Peng, H. J. Wang, H. Yu and
Y. P. Fang, J. Mater. Chem., 2012, 22, 17900–17905.
4 W. Liu, M. L. Wang, C. X. Xu and S. F. Chen, Chem. Eng. J.,
tion of Jiangsu (Grant no. BK20131288), Fund Project for
Transformation of Scientic and Technological Achievements
of Jiangsu Province of China (Grant no. BA2014100) and the
Fundamental Research Funds for the Central Universities
(KYLX_0161).
2
012, 209, 386–393.
5 L. H. Tjeng, M. B. J. Meinders, J. Vanelp, J. Ghijsen,
G. A. Sawatzky and R. L. Johnson, Phys. Rev. B: Condens.
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