Pd nanoparticles immobilized on TiO2 nanotubes-functionalized ceramic membranes for flow-through catalysis

다국어 초록 (Multilingual Abstract)

A high performance catalytic membrane was fabricated with Pd nanoparticles supported by TiO2 nanotubes, where the TiO2 nanotubes were synthesized on the ceramic membrane via a simple hydrothermal etching. A flow-through catalytic membrane reactor was developed for testing the catalytic properties in the p-nitrophenol reduction.
The effect of etching time was investigated in detail and an optimal etching time was determined to be 16 h. The characterization results highlighted that the as-prepared bouquet-like TiO2 nanotubes could significantly improve the loading amount and dispersity of Pd nanoparticles. The fabricated catalytic membrane exhibited considerably improved catalytic activity and stability, with a 100% conversion of p-nitrophenol and no loss in catalytic activity during five reaction cycles. The obtained activation energy was much lower than the values in literatures, implying that the p-nitrophenol reduction could take place more easily on our catalytic membranes compared to other catalysts.

참고문헌 (Reference)

1 N. Kageyama, 185 : 175-, 2017

2 J. Feng, 221 : 16-, 2013

3 Z. Y. Wang, 496 : 95-, 2015

4 V. M. Gryaznov, 32 : 188-, 1963

5 L. Meng, 268 : 3-, 2016

6 J. S. Choi, 17 : 280-, 2000

7 Y. M. Lin, 44 : 343-, 1998

8 M. Vospernik, 79-80 : 169-, 2003

9 M. Liu, 301 : 35-, 2016

10 Z. H. Zhao, 91 : 2298-, 2016

11 N. Diban, 52 : 10342-, 2013

12 M. Liu, 64 : 70-, 2015

13 R. L. Huang, 50 : 11263-, 2016

14 J. N. Armor, 147 : 217-, 1998

15 M. D. Wales, 268 : 12-, 2016

16 X. Y. Wang, 44 : 386-, 2013

17 H. Mahdavi, 23 : 1-, 2016

18 R. Z. Chen, 52 : 5002-, 2013

19 S. Zhang, 95 : 2374-, 2017

20 S. Y. Bi, 35 : 2251-, 2015

21 L. G. Dou, 4 : 18990-, 2016

22 A. Shukla, 17 : 785-, 2015

23 M. Afrand, 77 : 38-, 2016

24 M. Boron, 278 : 50-, 2011

25 H. Huang, 9 : 3153-, 2013

26 D. Li, 279 : 994-, 2015

27 R. S. Zeng, 52 : 4045-, 2016

28 J. B. Zhong, 168 : 1632-, 2009

29 M. Q. Lv, 4 : 5872-, 2012

30 M. Yurderi, 160 : 534-, 2014

31 A. Mansouri, 543 : 43-, 2017

32 L. Liu, 46 : 1569-, 2010

33 R. Z. Chen, 50 : 4405-, 2011

34 C. Ao, 6 : 5060-, 2016

35 G. W. Zhan, 366 : 215-, 2013

36 V. K. Gupta, 48 : 210-, 2014

37 Y. C. Chang, 165 : 664-, 2009

38 김창현, "Methane steam reforming in a membrane reactor using high-permeable and low-selective Pd-Ru membrane" 한국화학공학회 34 (34): 1260-1265, 2017

39 Yan Du, "Fabrication of palladium nanoparticles immobilized on an amine-functionalized ceramic membrane support using a nanoparticulate colloidal impregnation method with enhanced catalytic properties" 한국화학공학회 32 (32): 1759-1765, 2015

40 Jong-soo Park, "A catalytic membrane reactor for water-gas shift reaction" 한국화학공학회 27 (27): 816-821, 2010