All Issue

2022 Vol.32, Issue 1 Preview Page
Synthesis and Characteristics of Pd/r-TiO2 Nanotube Arrays Hetrojunction Photocatalyst

Pd/r-TiO2 나노튜브 이종결합 광촉매의 합성과 특성

Jong-Ho Lee1
,
Young-Ki Lee2
,
Young-Jig Kim2
,
Kyung-Wook Jang3
,
Han-Jun Oh3†
이 종호1
,
이 영기2
,
김 영직2
,
장 경욱3
,
오 한준3†
1Department of Chemistry, Hanseo University, Seosan 31962, Republic of Korea
2School of Advanced Materials Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
3Department of Materials Science, Hanseo University, Seosan 31962, Republic of Korea
1한서대학교 화학과
2성균관대학교 신소재공학부
3한서대학교 신소재공학과
†Corresponding author E-Mail : hanjun58@hanseo.ac.kr (H.-J. Oh, Hanseo Univ.)
January 2022. pp. 14-22
PDF XML Citation
Abstract

To improve light absorption ability in the visible light region and the efficiency of the charge transfer reaction, Pd nanoparticles decorated with reduced TiO2 nanotube photocatalyst were synthesized. The reduced TiO2 nanotube photocatalyst was fabricated by anodic oxidation of Ti plate, followed by an electrochemical reduction process using applied cathodic potential. For TiO2 photocatalyst electrochemically reduced using an applied voltage of -1.3 V for 10 min, 38% of Ti4+ ions on TiO2 surface were converted to Ti3+ ion. The formation of Ti3+ species leads to the decrease in the band gap energy, resulting in an increase in the light absorption ability in the visible range. To obtain better photocatalytic efficiency, Pd nanoparticles were decorated through photoreduction process on the surface of reduced TiO2 nanotube photocatalyst (r10-TNT). The Pd nanoparticles decorated with reduced TiO2 nanotube photocatalyst exhibited enhanced photocurrent response, and high efficiency and rate constant for aniline blue degradation; these were ascribed to the synergistic effect of the new electronic state of the TiO2 band gap energy induced by formation of Ti3+ species on TiO2, and by improvement of the charge transfer reaction.

Keywords
reduced TiO2 nanotube
Pd nanoparticle
band gap energy
aniline blue
dye degradation
References
1.
Q. Wang, R. Jin, M. Zhang and S. Gao, J. Alloys Compd., 690, 139 (2017). 10.1016/j.jallcom.2016.07.281
2.
L. Pan, J.-J. Zou, S. Wang, Z.-F. Huang, A. Yu, L. Wang and X. Zhang, Chem. Commun., 49, 6593 (2013). 10.1039/c3cc42152j23660603
3.
L. Pan, J.-J. Zou, X. Zhang and L. Wang, J. Am. Chem. Soc., 133, 10000 (2011). 10.1021/ja203592721644522
4.
H. G. Yang, C. H. Sun, S. Z. Qiao, J. Zou, G. Liu, S. C. Smith, H. M. Cheng and G. Q. Lu, Nature, 453, 638 (2008). 10.1038/nature0696418509440
5.
K. Lv, J. Yu, L. Cui, S. Chen and M. Li, J. Alloys Compd., 509, 4557 (2011). 10.1016/j.jallcom.2011.01.103
6.
Y. Zhang, Z. Xing, X. Liu, Z. Li, X. Wu, J. Jiang, M. Li, Q, Zhu and W. Zhou, ACS Appl. Mater. Interfaces, 8, 26851 (2016). 10.1021/acsami.6b0906127652448
7.
Y. Chen, W. Li, J. Wang, Y. Gan, L. Liu and M. Ju, Appl. Catal., B, 191, 94 (2016). 10.1016/j.apcatb.2016.03.021
8.
L. Aïnouche, L. Hamadou, A. Kadri, N. Benbrahim and D. Bradai, Sol. Energy Mater. Sol. Cells, 151, 179 (2016). 10.1016/j.solmat.2016.03.013
9.
G. Li, Z. Lian, X. Li, Y. Xu, W. Wang, D. Zhang, F. Tian and H. Li, J. Mater. Chem. A, 3, 3748 (2015). 10.1039/C4TA02873B
10.
X. Deng, H. Zhang, R. Guo, Q. Ma, Y. Cui, X. Cheng, M. Xie and Q. Cheng, Sep. Purif. Technol., 192, 329 (2018). 10.1016/j.seppur.2017.10.029
11.
M. Liu, X. Qiu, M. Miyauchi and K. Hashimoto, Chem. Mater., 23, 5282 (2011). 10.1021/cm203025b
12.
B. Qiu, Y. Zhou, Y. Ma, X. Yang, W. Sheng, M. Xing and J. Zhang, Sci. Rep., 5, 8591 (2015). 10.1038/srep0859125716132PMC4341197
13.
Z. Lian, W. Wang, G. Li, F. Tian, K. S. Schanze and H. Li, ACS Appl. Mater. Interfaces, 9, 16959 (2017). 10.1021/acsami.6b1149428001032
14.
B. Jiang, Y. Tang, Y. Qu, J.-Q. Wang, Y. Xie, C. Tian, W. Zhou and H. Fu, Nanoscale, 7, 5035 (2015). 10.1039/C5NR00032G25697803
15.
Z. Li, Y. Ding, W. Kang, C. Li, D. Lin, X. Wang, Z. Chen, M. Wu and D. Pan, Electrochim. Acta, 161, 40 (2015). 10.1016/j.electacta.2014.12.132
16.
B. Tan and Y. Wu, J. Phys. Chem. B, 110, 15932 (2006). 10.1021/jp063972n16898747
17.
Y. Xu, S. Wu, P. Wan, J. Sun and Z. D. Hood, RSC Adv., 7, 32461 (2017). 10.1039/C7RA04885H
18.
X. Xu, J. Cai, M. Zhou, X. Du and Y. Zhang, J. Hazard. Mater., 382, 121096 (2020). 10.1016/j.jhazmat.2019.12109631491666
19.
X. Chen, X. Peng, L. Jiang, X. Yuan, J. Fei and W. Zhang, Chem. Eng. J., 427, 130945 (2022). 10.1016/j.cej.2021.130945
20.
T. Jedsukontorn, T. Ueno, N. Saito and M. Hunsom, J. Alloys Compd., 726, 567 (2017). 10.1016/j.jallcom.2017.08.028
21.
K. Li, Z. Huang, X. Zeng, B. Huang, S. Gao and J. Lu, ACS Appl. Mater. Interfaces, 9, 11577 (2017). 10.1021/acsami.6b1619128266841
22.
M. Wang, Z. Cui, M. Yang, L. Lin, X. Chen, M. Wang and J. Han, J. Colloid Interface Sci., 544, 1 (2019). 10.1016/j.jcis.2019.02.08030818155
23.
S.-Y. Li, Z.-L. Liu, G.-X. Xiang, B.-H. Ma, X.-D. Meng and Y.-L. He, Ceram. Int., 45, 767 (2019). 10.1016/j.ceramint.2018.09.243
24.
A. Monamary and K. Vijayalakshmi, Ceram. Int., 44, 22957 (2018). 10.1016/j.ceramint.2018.09.093
25.
J.-H. Lee, S. Heo, J.-I. Youn, Y.-J. Kim, S.-J. Suh and H.-J. Oh, Korean J. Mater. Res., 29, 790 (2019). 10.3740/MRSK.2019.29.12.790
Information
  • Publisher :Materials Research Society of Korea
  • Publisher(Ko) :한국재료학회
  • Journal Title :Korean Journal of Materials Research
  • Journal Title(Ko) :한국재료학회지
  • Volume : 32
  • No :1
  • Pages :14-22
  • Received Date : 2021-11-23
  • Revised Date : 2021-12-15
  • Accepted Date : 2021-12-16
  • DOI :https://doi.org/10.3740/MRSK.2022.32.1.14
Journal Informaiton Korean Journal of Materials Research Korean Journal of Materials Research
Online Submission
  • scopus
  • NRF
  • KOFST
  • crossref crossmark
  • crossref cited-by
  • crosscheck
  • open access
  • ccl
Journal Informaiton Journal Informaiton - close