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Ordered assembly of anisotropic one-dimensional (1D) and 2D nanomaterials is necessary for preparing delicate heterostructures with close contact to alleviate the energy and environmental crisis. Here, we exploited oriented attachment, a non-classical growth mechanism, as a tool for preparing ordered 1D/2D NiZn layered double hydroxide (Ni-Zn LDH) heterostructures beyond the use of surfactants. Lattice matching between the (101) plane of 1D nanoneedles (NNs) and the (100) plane of 2D nanosheets (NSs) drives the spontaneous ordered assembly of 1D NiZn-LDH NNs on 2D NiZn-LDH NSs. Accordingly, the oxygen-deficient 1D NiZn-LDH capable of CO2 adsorption is, therefore, well dispersed on the 2D platform. The oriented assembly generates strong and intimate interactions between the 1D and 2D units, enabling the efficient transfer of photogenerated electrons from 2D to 1D NiZn-LDH. The oriented 1D/2D NiZn-LDH heterostructure demonstrates superior CO2 photoreduction performance under visible light irradiation, with a CO yield rate of 16,950 µmol g−1 h−1 and a 100% CO selectivity. The findings demonstrate that the growth of anisotropic nanomaterials can be tailored for advanced heterostructure design through oriented attachment alone. [Figure not available: see fulltext.]. © 2023, Science China Press.
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Science China Materials
ISSN: 2095-8226
Year: 2023
Issue: 6
Volume: 66
Page: 2308-2316
6 . 8
JCR@2023
6 . 8 0 0
JCR@2023
ESI HC Threshold:49
JCR Journal Grade:1
CAS Journal Grade:3
Cited Count:
SCOPUS Cited Count: 1
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 0
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