期刊论文

Cheng, Bei;Ho, Wingkei

英文

Applied Surface Science

0169-4332

2019

478

981-990

10.1016/j.apsusc.2019.02.008

This work was supported by the Opening Project of Key Laboratory of Optoelectronic Chemical Materials and Devices, Ministry of Education, Jianghan University (JDGD-201704), National Natural Science Foundation of China (21433007, 21573170, U1705251, and 21871217) and the Self-determined and Innovative Research Funds of SKLWUT (2017-ZD-4). The work also supported by the FLASS Dean's Research Grant (04257) of The Education University of Hong Kong and General Research Fund (18301117) from the HKSAR.

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High-performance adsorption toward Congo red and Cr(VI) depends on the design of hierarchical nanostructures. Herein, hierarchical porous Ni/Co-layered double hydroxide (NiCo-LDH) hollow dodecahedra were synthesised by etching zeolitic imidazolate framework-67 (ZIF-67) as a self-sacrificing template with Ni(NO 3 ) 2 . The synthesised NiCo-LDH showed better adsorption property for adsorbing Congo red and Cr(VI) ions (Cr 2 O 7 2− ) than NiCo 2 O 4 -NiO, which was obtained by calcining NiCo-LDH at 350 °C. The adsorption processes of Congo red an...