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Facile synthesis approach for preparation of robust and recyclable Ag/ZnO nanorods with high catalytic activity for 4-nitrophenol reduction
Rasaki, Sefiu Abolaji; Zhao, Chunlei; Wang, Rui; Wang, Jiacheng; Jiang, Heng; Yang, Minghui
2019-11-01
Source PublicationMATERIALS RESEARCH BULLETIN
ISSN0025-5408
Volume119
SubtypeArticle
AbstractIn this work, Ag/ZnO nanorods are prepared via simple and cost-saving liquid precipitation citrate reduction process (LPCR). The system shows appreciable catalytic activity for the reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) wherein NaBH4 is used as electron sacrificer at ambience. It is found out that ZnO nanorods can effectively prevent Ag NPs agglomeration; a problem normally reduces active sites density. The coupling effect between the Ag NPs and ZnO greatly enhances electron transfer rate. This gives rise to high reduction rate constant (k(app)) of (similar to)3.97 x 10(-3) s(-1) for the catalytic reduction of 4-NP. The result is about 1.9times better than that of Ag NPs (2.07 x 10(-3) s(-1)). The k(app), is well fitted into pseudo-first order kinetics with high correlation coefficient (R-2) of about 0.994, indicating chemisorptive reduction process. The remarkable performance obtained here is attributed to strong coupling effect between Ag NPs and ZnO nanorods derived from LPCR synthesis method.
KeywordAg/ZnO nanorods catalyst 4-nitrophenol reduction Pseudo-first-order kinetics Chemisorptive reactionrecyclability
DOI10.1016/j.materresbull.2019.110536
Language英语
WOS Research AreaMaterials Science
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/26749
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Rasaki, Sefiu Abolaji,Zhao, Chunlei,Wang, Rui,et al. Facile synthesis approach for preparation of robust and recyclable Ag/ZnO nanorods with high catalytic activity for 4-nitrophenol reduction[J]. MATERIALS RESEARCH BULLETIN,2019,119.
APA Rasaki, Sefiu Abolaji,Zhao, Chunlei,Wang, Rui,Wang, Jiacheng,Jiang, Heng,&Yang, Minghui.(2019).Facile synthesis approach for preparation of robust and recyclable Ag/ZnO nanorods with high catalytic activity for 4-nitrophenol reduction.MATERIALS RESEARCH BULLETIN,119.
MLA Rasaki, Sefiu Abolaji,et al."Facile synthesis approach for preparation of robust and recyclable Ag/ZnO nanorods with high catalytic activity for 4-nitrophenol reduction".MATERIALS RESEARCH BULLETIN 119(2019).
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