具有高催化活性的Ag复合Sm∶ZnO纳米复合材料的制备、表征以及光催化机理研究

doi:10.11896/cldb.21010244

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Abstract The photocatalytic properties of ZnO based composites are regulated by rare-earth metal doping and noble metal decoration simultaneously. Ag decorated Sm∶ZnO nanocomposite photocatalyst can be successfully synthesized by a facile one-step polymeric network gel method in the present work. The X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS) are used to study the structure, morphology and surface chemical composition of Ag decorated Sm∶ZnO composite. The results show that the composite has good crystallinity and abundant surface defects,and Sm is doped into the lattice of ZnO as Sm³⁺, while Ag is deposited on the surface of ZnO in the form of metal. The results of UV-visible absorption spectrum (UV-Vis), photoluminescence spectra (PL) and surface photo-voltage spectra (SPV) indicate that Sm doping is able to further improve the utilization of the visible light, and further restrain the recombination of photo-generated carriers, compared with Ag/ZnO. The photocatalytic experiments using methylene blue (MB) as the simulated pollutant under simulated sunlight irradiation show that MB can be completely degraded by Ag decorated Sm∶ZnO composite after irradiation for 10 min, and the photocatalytic efficiency is 2.44 times higher than that of Ag/ZnO. What's more, the stability of photocatalytic efficiency is repeatedly verified by five cyclic degradation experiments. The significantly enhanced photocatalytic properties of Ag decorated Sm∶ZnO composite are due to the synergistic effect of Sm doping and Ag decoration. On the one hand, with the introduction of Sm and Ag, the sample exhibits better crystal quality and abundant surface defects. On the other hand, the impurity energy levels introduced by Sm doping and the surface plasma resonance effect generated by Ag decoration not only improve the absorption of visible light, but also facilitate the migration of photogenerated electrons, thus realizing more efficient photogenerated carrier separation.

Key words： polymer network gel method photocatalytic Sm doping Ag/ZnO

Published: 25 April 2022 Online: 2022-04-27

CLC number:

O614

Fund:Southwest Minzu University Graduate Innovative Research Fund (CX2020SZ91) and National Natural Science Foundation of China (61901401).

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	MA Chao
	YU Fei
	SUN Yifei
	YUAN Huan
	XU Ming

Cite this article:

MA Chao,YU Fei,SUN Yifei, et al. Synthesis, Characterization and Photocatalytic Mechanism of Ag Decorated Sm∶ZnO Nanocomposite with High Photocatalytic Activity[J]. Materials Reports, 2022, 36(8): 21010244-8.

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http://www.mater-rep.com/EN/10.11896/cldb.21010244 OR http://www.mater-rep.com/EN/Y2022/V36/I8/21010244

1 Ashouri R, Ghasemipoor P, Rasekh B, et al. International Journal of Environmental Science and Technology,2019,16(3),1729.
2 Li R, Li T, Zhou Q. Catalysts,2020,10(7),804.
3 Liu J L, Wang Y H, Ma J Z, et al. Journal of Alloys and Compounds,2019,783,898.
4 Sapkota K P, Lee I, Hanif M, et al. Catalysts,2019,9(6),498.
5 Samadi M, Zirak M, Naseri A, et al. Research on Chemical Interme-diates,2019,45(4),2197.
6 Ong C B, Ng L Y, Mohammad A W. Renewable and Sustainable Energy Reviews,2018,81,536.
7 Qi K Z, Xing X H, Zada A, et al. Ceramics International,2020,46(2),1494.
8 Cerrato E, Gionco C, Berruti I, et al. Journal of Solid State Chemistry,2018,264,42.
9 Yu X C, Dang K L, Song Z Y, et al. Materials Reports B:Research Papers,2020,34(7),14003.
于晓晨,党快乐,宋泽钰,等.材料导报:研究篇,2020,34(7),14003.
10 Xu M, Chen Y, Hu W Y, et al. Journal of Physics D:Applied Physics,2019,53,025106.
11 Senasu T, Chankhanittha T, Hemavibool K, et al. Materials Science in Semiconductor Processing,2020,123,105558.
12 Myilsamy M, Mahalakshmi M, Subha N, et al. RSC Advances,2016,6(41),35024.
13 Alam U, Khan A, Ali D, et al. RSC Advances,2018,8(31),17582.
14 Faraz M, Naqvi F K, Shakir M, et al. New Journal of Chemistry,2018,42(3),2295.
15 Sin J C, Lam S M, Lee K T, et al. Ceramics International,2013,39(5),5833.
16 Carvalho R G, Tavares M T S, Oliveira F K F, et al. Journal of Materials Science: Materials in Electronics,2017,28(11),7943.
17 Widiyandari H, Wardani A, Indriani N, et al. AIP Conference Procee-dings,2020,2219,080006.
18 Kavitha R, Kumar S G. Materials Science in Semiconductor Processing,2019,93,59.
19 Diantariani N P, Wahyuni E T, Kartini I, et al. IOP Conference Series: Materials Science and Engineering,2019,509,012099.
20 Shaislamov U, Lee H J. CrystEngComm,2018,20(46),7492.
21 Mendoza-Mendoza E, Nuñez-Briones A G, García-Cerda L A, et al. Ceramics International,2018,44(6),6176.
22 Georgekutty R, Seery M K, Pillai S C. The Journal of Physical Chemistry C,2008,112(35),13563.
23 Ansari S A, Khan M M, Lee J, et al. Journal of Industrial and Enginee-ring Chemistry,2014,20(4),1602.
24 Chen Y, Yu F, Liu Y T, et al. Materials Reports B:Research Papers,2017,31(12),120(in Chinese).
陈雨,余飞,刘禹彤,等.材料导报B:研究篇,2017,31(12),120.
25 Lu Y H, Xu M, Xu L X, et al. Journal of Nanoparticle Research,2015,17(9),350.
26 Liu Y T, Zhang Q P, Xu M, et al. Applied Surface Science,2019,476,632.
27 Xie W, Li Y Z, Sun W, et al. Journal of Photochemistry and Photobiology A: Chemistry,2010,216(2-3),149.
28 Pandiyarajan T, Mangalaraja R V, Karthikeyan B, et al. Applied Physics A,2015,119(2),487.
29 Yu F C, Nan D M, Song T Y, et al. Materials Reports B:Research Papers,2020,34(4),08003(in Chinese).
于富成,南冬梅,宋天云,等.材料导报:研究篇,2020,34(4),08003.
30 Chen C Q, Zheng Y H, Zhan Y Y, et al. Dalton Transactions,2011,40(37),9566.
31 Luo K, St. Clair T P, Lai X, et al. The Journal of Physical Chemistry B,2000,104(14),3050.
32 Zhang G, Lang J H, Zhang Q, et al. Journal of Materials Science: Materials in Electronics,2018,29(19),16534.
33 Wang J P, Wang Z Y,Huang B B, et al. ACS Applied Materials and Interfaces,2012,4(8),4024.
34 Zhang Q P, Xu X N, Liu Y T, et al. Scientific Reports,2017,7,46424.
35 Jose Y J, Manjunathan M, Selvaraj S J. Journal of Nanostructure in Chemistry,2017,7(3),259.
36 Yuan H, Xu M, Dong X S, et al. Materials Letters,2015,154,94.
37 Xu P S, Sun Y M, Shi C S, et al. Science in China Series A-Mathematics,2001,44,1174.
38 Mou H Y, Song C X, Zhou Y H, et al. Applied Catalysis B: Environmental,2018,221,565.
39 Lu Y H, Xu M, Xu L X, et al. Journal of Nanoparticle Research,2015,17(9),350.
40 Das A, Sahoo R K, Mishra D K, et, al. Applied Surface Science,2019,467,1059.
41 Chen D, Wang Z H, Ren T, et al. Journal of Physical Chemistry C,2014,118(28),15300.
42 Zhong J B, Li J Z, Wang T, et al. Applied Physics A,2016,122(1),4.
43 Rajbongshi H, Bhattacharjee S, Datta P. Materials Research Express,2019,6(4),045022.
44 Huo C Q, Jiang H, Lu Y M, et al. Materials Research Bulletin,2019,111,17.
45 Pascariu P, Cojocaru C, Olaru N, et al. Journal of Environmental Management,2019,239,225.
46 Hassanzadeh-Tabrizi S A, Do T O. Journal of Materials Science: Materials in Electronics,2018,29(13),10986.
47 Luo K Y, Li J, Hu W Y, et al. Nanomaterials,2020,10(10),1946.
48 Wang L, Zhang C B, Gao F, et al. Chemical Engineering Journal,2017,314,622.
49 Chen X Q, Wu Z S, Gao Z Z, et al. Nanomaterials,2017,7,258.
50 Chen X Q, Wu Z S, Liu D D, et al. Nanoscale Research Letters,2017,12,143.
51 Ha L, Vinh T, Thuy N, et al. Journal of Environmental Chemical Engineering,2021,9,105103.
52 Wang J F, Li Y, Qiao Y D, et al. New Journal of Chemistry,2018,42,18001.