SYNTHESIS, CHARACTERIZATION OF CeO2@Ag HOLLOW SPHERES AND EVALUATION OF THEIR CATALYST ACTIVITY FOR THE REDUCTION OF 4-NP
Keywords:
CeO2 hollow spheres, Ag nanoparticles, composite, catalyst activity
Abstract
A CeO2@Ag hollow spherical composite catalyst was synthesized with the template method. Firstly, a SiO2@CeO2 core-shell structure was synthesized using SiO2 spheres as the template, and then the SiO2 core was removed by etching to obtain hollow CeO2 spheres. The CeO2 hollow microspheres have a large specific surface area, which can effectively suppress the aggregation of Ag nanoparticles, leading to CeO2@Ag with a regular morphology and well dispersed Ag nanoparticles. There is a strong synergistic effect between CeO2 and Ag, which is beneficial to improving the catalytic performance. As a result, the CeO2@Ag hollow spherical composite catalyst can reduce 4-nitrophenol efficiently.
References
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28. L. YU, R.S. PENG, L.M. CHEN, M.L. FU, J.L. WU, D.Q. YE. Ag supported on CeO2 with different morphologies for the catalytic oxidation of HCHO, Chem. Eng. J., 334(2018), 2480-2487
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31. W.W. ZHANG, D.H. CHEN. Preparation and performance of CeO2 hollow spheres and nanoparticles, J. Rare Earths, 34(3) (2016), 295-299
32. J. ZHANG, M. GONG, C. TIAN, C.A. WANG. Facile synthesis of well-defined CeO2 hollow spheres with a tunablepore structure, Ceram. Int., 42(2016), 6088-6093
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2. M. ÖZACAR, A.S. POYRAZ , H.C. GENUINO , C.H. KUO, Y.T. MENG, S.L. SUIB. Influence of silver on the catalytic properties of the cryptomelane and Ag-hollandite types manganese oxides OMS-2 in the low-temperature CO oxidation, Appl. Catal., A, 462-463(2013), 64-74
3. H. MAO, C.G. JI, M.H. LIU, Z.Q. CAO, D.Y. SUN, Z.Q. XING, X, CHEN, Y. ZHANG, X.M. SONG. Enhanced catalytic activity of Ag nanoparticles supported on polyacrylamide/polypyrrole/graphene oxide nanosheets for the reduction of 4-nitrophenol, Appl. Surf. Sci., 434(2018), 522-533
4. A. AHMAD , F. ALI , Z.A. ALOTHMAN, R. LUQUE. UV assisted synthesis of folic acid functionalized ZnO–Ag hexagonal nanoprisms for efficient catalytic reduction of Cr+6 and 4-nitrophenol, Chemosphere, 319(2023), 137951
5. K. SAWABE, T. HIRO, K. SHIMIZU, A. SATSUMA. Density functional theory calculation on the promotion effect of H2 in the selective catalytic reduction of NOx over Ag–MFI zeolite, Catal. Today, 153(3-4)(2010), 90-94
6. S. KUNDU, W. DAI, Y.Y. CHEN, L. MA, Y. YUAN, M. SINYUKOV ALEXANDER, L HONG. Shape-selective catalysis and surface enhanced Raman scattering studies using Ag nanocubes, nanospheres and aggregated anisotropic nanostructures, J. Colloid Interface Sci., 498(2017), 248-262
7. T. GAN, Z.K. WANG, Z.X. SHI, D.Y. ZHENG, J.Y. SUN, Y.M. LIU. Graphene oxide reinforced core–shell structured Ag@Cu2O with tunable hierarchical morphologies and their morphology–dependent electrocatalytic properties for bio-sensing applications, Biosens. Bioelectron., 112(2018), 23-30.
8. Y.G. WANG, X.Y. WANG, B. SUN, S.C. TANG, X.K. MENG. Concentration-dependent Morphology Control of Pt-coated-Ag Nanowires and Effects of Bimetallic Interfaces on Catalytic Activity, J. Mater. Sci. Technol., 32(1)(2016), 41-47.
9. C.R. ZHANG, L.F. WANG, C.U. DONG, W.J. Zhu, W.H. GE. Preparation of hollow Ag/Pt heterostructures on TiO2 nanowires and their catalytic properties, Appl. Catal. B, 180(2016), 344-350
10. D. BISWAS, S. MONDAL, A. RAKSHIT, A. BOSE, S. BHATTACHARYYA, S. CHAKRABORTY. Size and density controlled Ag nanocluster embedded MOS structure for memory applications, Mater. Sci. Semicond. Process., 63(2017), 1-5
11. E. RAMÍREZ-MENESES, V. MONTIEL-PALMA, M.A. DOMÍNGUEZ-CRESPO, M.G. IZAGUIRRE-LOPE, E. PALACIOS-GONZALEZ, H. DORANTES-ROSALES. Shape-and size-controlled Ag nanoparticles stabilized by in situ generated secondary amines, J. Alloys Compd., 643, (2015), s51-s61
12. H. TIGGER-ZABOROV, G. MAAYAN. Nanoparticles assemblies on demand: Controlled aggregation of Ag(0) mediated by modified peptoid sequences, J. Colloid Interface Sci., 508(2017), 56-64
13. Z. CHEN, D.S. JIA , Y. ZHOU, J. HAO, Y. LIANG, Z.M. CUI, W.G. SONG. In situ generation of highly dispersed metal nanoparticles on two-dimensional layered SiO2 by topotactic structure conversion and their superior catalytic activity, Appl. Surf. Sci., 434(2018), 1137-1143
14. Y. CHI, L. ZHAO, Q. YUAN, X. YAN, Y.J. LI, N. LI, X.T. LI. In situ auto-reduction of silver nanoparticles in mesoporous carbon with multifunctionalized surfaces, J. Mater. Chem., 22(2012), 13571-13577
15. H. MAO, C.G. JI, M.H. LIU, Z.Q. CAO, D.Y. SUN, Z,Q, XING, X. CHEN, Y. ZHANG, X.M. SONG. Enhanced catalytic activity of Ag nanoparticles supported on polyacrylamide/polypyrrole/graphene oxide nanosheets for the reduction of 4-nitrophenol, Appl. Surf. Sci., 434(2018), 522-533
16. X.G. LIAO, L. ZHENG, Q. HE, G. LI, L. ZHENG, H.M. LI, T. TIAN. Fabrication of Ag/TiO2 membrane on Ti substrate with integral structure for catalytic reduction of 4-nitrophenol, Process Saf. Environ. Prot., 168(2022), 792-799
17. S. MOHAMMADZADEH, M.E. OLYA, A.M. ARABI, A. SHARIATI, M.R. KHOSRAVI NIKOU. Synthesis, characterization and application of ZnO-Ag as a nanophotocatalyst for organic compounds degradation, mechanism and economic study, J. Environ. Sci., 35(2015), 194-207
18. M.K. KIM, P.S. KIM, J.H. BAIK, I.S. NAM, B.K. CHO, S.H. OH. DeNOx performance of Ag/Al2O3 catalyst using simulated diesel fuel–ethanol mixture as reductant, Appl. Catal., B, 105(1-2)(2011), 1-14
19. S. LIU, X.D. WU, D. WENG, R. RAN. Ceria-based catalysts for soot oxidation: a review, J. Rare Earths, 33(6)(2015), 567-590
20. S.M. Chaudhari, O.S. Gonsalves, P.R. Nemade. Enhanced photocatalytic degradation of Diclofenac with Agl/CeO2: A comparison with Mn, Cu and Ag-doped CeO2, Mater. Res. Bull., 143(2021), 111463
21. Y. SHI, X.L. ZHANG, Y.M. ZHU, H.L. TAN,X.S. CHEN, Z.H. LU. Core–shell structured nanocomposites Ag@CeO2 as catalysts for hydrogenation of 4-nitrophenol and 2-nitroaniline, RSC Adv., 6(2016), 47966-47973
22. B.Y. GUAN, L. YU, J. LI, X.W. LOU. A universal cooperative assembly-directed method for coating of mesoporous TiO2 nanoshells with enhanced lithium storage properties, Sci. Adv. Mater., 2(2016), 1501554
23. Z.H. WANG, H.F. FU, Z.W. TIAN, D.M HAN, F.B. GU. Strong metal–support interaction in novel core–shell Au–CeO2 nanostructures induced by different pretreatment atmospheres and its influence on CO oxidation, Nanoscale, 8(2016), 5865-5872
24. Y. CHI, Q. YUAN, Y.J. LI, J.C. TU, L. ZHAO, N. LI, X.T. LI. Synthesis of Fe3O4@SiO2-Ag magnetic nanocomposite based on small-sized and highly dispersed silver nanoparticles for catalytic reduction of 4-nitrophenol, J. Colloid Interface Sci., 383(2012), 96-102
25. J.S. FANG, Y.W. ZHANG, Y.M. ZHOU, S. ZHAO, C. ZHANG, H.X. ZHANG, SHENG, X.L. SHEN. In-situ formation of supported Au nanoparticles in hierarchical yolkshell CeO2/mSiO2 structures as highly reactive and sinter-resistant catalysts, J. Colloid Interface Sci., 488(2017), 196-206
26. C. LEE, J. PARK, Y.G. SHUL, H, EINAGA,Y. TERAOKA. Ag supported on electrospun macro-structure CeO2 fibrous mats for diesel soot oxidation, Appl. Catal., B, 174-175(2015), 185-192
27. J.H. YANG, J. WANG, X.Y. LI, D.D. WANG, H. SONG. Synthesis of urchin-like Fe3O4@SiO2@ZnO/CdS core–shell microspheres for the repeated photocatalytic degradation of rhodamine B under visible light, Catal. Sci. & Technol., 6(2016), 4525-4534
28. L. YU, R.S. PENG, L.M. CHEN, M.L. FU, J.L. WU, D.Q. YE. Ag supported on CeO2 with different morphologies for the catalytic oxidation of HCHO, Chem. Eng. J., 334(2018), 2480-2487
29. L. MA, D.S. WANG, J.H. LI. Ag/CeO2 nanospheres: efficient catalysts for formaldehyde oxidation, Appl. Catal., B, 148-149(2014), 36-43
30. W.J. DENG, D.H. CHEN, L. CHEN. Synthesis of monodisperse CeO2 hollow spheres with enhanced photocatalytic activity, Ceram. Int., 41(2015), 11570-11575
31. W.W. ZHANG, D.H. CHEN. Preparation and performance of CeO2 hollow spheres and nanoparticles, J. Rare Earths, 34(3) (2016), 295-299
32. J. ZHANG, M. GONG, C. TIAN, C.A. WANG. Facile synthesis of well-defined CeO2 hollow spheres with a tunablepore structure, Ceram. Int., 42(2016), 6088-6093
33. Y.Y. WANG, Y. SHU, J. XU, H. PANG. Facile one-step synthesis of Ag@CeO2 core–shell nanospheres with efficient catalytic activity for the reduction of 4-nitrophenol, CrystEngComm, 19(2017), 684-689
34. K. VASANTHKUMAR, K. PORKODI, F. ROCHA. Langmuir–Hinshelwood kinetics-A theoretical study [J]. Catalysis Communications, 2008, 9, (1): 82-84.
35. L.E. WU, S.M. FANG, L. GE, C.C. HAN, P. QIU, Y.J. XIN. Facile synthesis of Ag@CeO2 core–shell plasmonic photocatalysts with enhanced visible-light photocatalytic performance, J. Hazard. Mater., 300(2015), 93-103
Published
2023-10-03
How to Cite
1.
Cui S, Zhao H, Liu C, Yu H, Li N, Li X. SYNTHESIS, CHARACTERIZATION OF CeO2@Ag HOLLOW SPHERES AND EVALUATION OF THEIR CATALYST ACTIVITY FOR THE REDUCTION OF 4-NP. MatTech [Internet]. 2023Oct.3 [cited 2026Aug.14];57(5):537–554. Available from: https://www.mater-tehnol.si/index.php/MatTech/article/view/813
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