Mn掺杂LaNi1-xMnxO3的合成及在可见光下的光催化活性

doi:10.11896/cldb.20100261

Abstract
Figure/Table
References
Related Citation (15)

Download:

Full Text ( PDF ) (5769KB)
Export: BibTeX | EndNote (RIS)

Abstract Aseries of Mn-doped LaNi_1-xMn_xO₃ (x=0,0.2,0.4,0.6,0.8,1.0) perovskite oxide photocatalytic materials were prepared by sol-gel me-thod. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscope (TEM), X-ray photoelectron spectroscopy (XPS) and other modern analytical methods were used to characterize the phase and microscopic morphology of LaNi_1-xMn_xO₃ and the photocatalytic performance of the samples was tested with degradation rate of methyl orange. The results showed that Mn-doping caused the diffraction peak to shift toward low angle, which caused lattice expansion and increased the crystal size. Furthermore, after doping, the peak area ratio of Mn⁴⁺/Mn³⁺ and Oads/Olatt increased, which improved the oxidation capacity, the interfacial electron transfer rate and the amount of oxygen adsorbed on the surface of the catalyst and further improved the photocatalytic activity. When the Mn doping amount was 40%, LaNi_0.6-Mn_0.4O₃ had the best photocatalytic performance, and the degradation rate of methyl orange was as high as 99.46% in 120 min under visible light irradiation. In addition, even after five cycles of operation, LaNi_0.6Mn_0.4O₃ still maintains high photocatalytic activity and has excellent recyclability. In the photocatalytic degradation process, the order of free radical activity was: h⁺, e^-, ·OH.

Key words： perovskite LaNi_1-xMn_xO₃ doping photocatalytic methyl orange

Published: 25 December 2021 Online: 2021-12-27

CLC number:

O643

Fund:This work was financially supported by Key Fund Project of Sichuan Provincial Department of Education (14TD0012) and Postgraduate Innovation Fund Project by Southwest University of Science and Technology (19ycx0033).

About author: Li Zeng, a master student in environmental science and engineering at Southwest University of Science and Technology, is engaged in the research of photocatalytic materials.

	Service
	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	ZENG Li
	PENG Tongjiang
	SUN Hongjuan
	LI Yao
	YANG Jingjie

Cite this article:

ZENG Li,PENG Tongjiang,SUN Hongjuan, et al. Synthesis and Photocatalytic Activity in Visible Light of Mn-doped LaNi_1-xMn_xO₃[J]. Materials Reports, 2021, 35(24): 24018-24025.

URL:

http://www.mater-rep.com/EN/10.11896/cldb.20100261 OR http://www.mater-rep.com/EN/Y2021/V35/I24/24018

1 Zhu Y, Zhu R, Yan L, et al. Applied Catalysis B: Environmental, 2018, 239, 280.
2 Ma L Z, Ji B, Yang Z, et al. Spectroscopy and Spectral Analysis, 2019(9),2894(in Chinese).
马立哲, 季邦, 杨洲, 等. 光谱学与光谱分析, 2019(9), 2894.
3 Qian J, Xue Y, Ao Y, et al. Chinese Journal of Catalysis, 2018, 39(4), 682.
4 Zhai X, Wang S, Shang C, et al. Journal of Materials Research, 2019, 34(21), 3627.
5 Wang X T, Li Y, Zhang X Q, et al. Applied Surface Science, 2019, 504, 144363.
6 Liu R H, Zhou H, Song Z N, et al. Nanoscale, 2019, 11(19), 9302.
7 Ahmadi M, Dorraji M S S, Hajimiri I, et al. Journal of Photochemistry and Photobiology A: Chemistry, 2021, 404, 112886.
8 Li S, Hu S, Jiang W, et al. Journal of Colloid and Interface Science, 2018, 521, 42.
9 Wu Y, He T. Spectrochimica Acta Part A Molecular & Biomolecular Spectroscopy, 2018, 199, 283.
10 Jiang J, Jia Y, Wang Y, et al. Applied Surface Science, 2019, 486, 93.
11 Jin Z, Hu R, Wang H, et al. Applied Surface Science, 2019, 491, 432.
12 Hu W Y, Xu M, Wang X Y, et al. Materials Reports B:Research Papers, 2020, 34(5), 10018(in Chinese).
胡文宇, 徐明, 王笑乙, 等. 材料导报:研究篇, 2020, 34(5), 10018.
13 Kohan E, Dezfuli A S. Journal of Materials Science: Materials in Electronics Volume, 2019, 30(18), 17170.
14 Safari S, Ahmadian S M S, Amani-Ghadim A R. Journal of Photochemistry and Photobiology A: Chemistry, 2020, 394, 112461.
15 Yang D, Zou X, Sun Y, et al. Frontiers of Chemical Science and Engineering, 2018, 12(3), 440.
16 Dhiman M, Singhal S. Journal of Rare Earths, 2019, 37(12), 1279.
17 He M, Wu X Y, Chen B, et al. Electrochimica Acta, 2020, 333, 135566.
18 Fu X X, Sang L X, Wang J Z, et al. Journal of Tianjin University (Science and Technology), 2001, 34(2), 229(in Chinese).
傅希贤, 桑丽霞, 王俊珍, 等. 天津大学学报(自然科学与工程技术版), 2001, 34(2), 229.
19 Oliva J, Garcia C R, Verduzco E, et al. Ceramics International, 2017, 43(16), 14074.
20 Hoang V Q T, Phan T Q P, Senthilkumar V, et al. International Journal of Applied Ceramic Technology, 2019, 16, 1651.
21 Xie R,Li Y,Liu H, et al. Journal of Alloys & Compounds, 2017, 691, 378.
22 Karoblis D, Mazeika K, Baltrunas D, et al. Journal of Sol-Gel Science and Technology, 2020, 93, 650.
23 Khatri A, Rana P S. Physica B-Condensed Matter, 2020, 579, 411905.
24 Xin B, Liang M S, Wang J, et al. Science Technology and Engineering, 2018, 18(14), 79(in Chinese).
辛博, 梁美生, 王洁, 等. 科学技术与工程, 2018, 18(14), 79.
25 Flores-Lasluisa J X, Huerta F, Cazorla-Amoros D, et al. Journal of Colloid and Interface Science, 2019, 556, 658.
26 Fu Z, Hu J, Hu W, et al. Applied Surface Science, 2018, 441(31), 1048.
27 Zeng Y, Wang Y, Zhang S, et al. Journal of Colloid and Interface Science, 2020, 580, 59.
28 Li S J, Li Y Z, Chen Y J, et al. ChemCatChem, 2020, 12(2), 623.
29 Li P, Chen X, Ma L, et al. Catalysis Science & Technology, 2019, 9(5), 1165.
30 Yoo J S, Liu Y, Rong X, et al. Journal of Physical Chemistry Letters, 9(7), 1473.
31 Tarjomannejad A, Niaei A, Gómez M J I, et al. Journal of Thermal Analysis & Calorimetry, 2017, 129(2), 671.
32 Hu Y L, Li Y J, Xie Y C, et al. Materials Reports B:Research Papers, 2020, 34(9), 18009(in Chinese).
胡玉林, 李永进, 谢燕春, 等. 材料导报:研究篇, 2020, 34(9), 18009.
33 Zhou W, Fu H. Inorganic Chemistry Frontiers, 2018, 5(6), 1240.