Synergistic synthesis of quasi-monocrystal CdS nanoboxes with high-energy facets

Li-Li Han, Sergei A. Kulinich, Yang-Yang Zhang, Jin Zou, Hui Liu, Wei-Hua Wang, Hui Liu, Hao-Bo Li, Jing Yang, Huolin L. Xin, Shi-Zhang Qiao, Xi-Wen Du

Research output: Contribution to journalArticlepeer-review

Abstract

Hollow nanostructures with a highly oriented lattice structure and active facets are promising for catalytic applications, while their preparation via traditional approaches contains multiple steps and is time and energy consuming. Here, we demonstrate a new one-step strategy involving two complementary reactions which promote each other; it is capable of producing unique hollow nanoparticles. Specifically, we apply synergic cooperation of cation exchange and chemical etching to attack PbS nanosized cubes (NCs) and produce CdS quasi-monocrystal nanoboxes (QMNBs) which possess the smallest dimensions reported so far, a metastable zinc-blende phase, a large specific surface area, and particularly high-energy {100} facets directly visualized by aberration-corrected scanning transmission electron microscopy. These properties in combination allow the nanoboxes to acquire exceptional photocatalytic activities. As an extension of the approach, we use the same strategy to prepare Co9S8 and Cu7.2S4 single-crystal hollow nanooctahedrons (SCHNOs) successfully. Hence, the synergic reaction synthesis strategy exhibits great potential in engineering unique nanostructures with superior properties.

Original languageEnglish
Pages (from-to)23106-23112
Number of pages7
JournalJournal of Materials Chemistry A
Volume3
Issue number46
Early online date9 Sep 2015
DOIs
Publication statusPublished - 14 Dec 2015

Bibliographical note

Electronic supplementary information: Detailed synthetic procedures, characterization methods, calculation and additional experimental results. See DOI: 10.1039/c5ta05472a

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