Single-crystalline porous NiO nanosheets prepared from β-Ni(OH)2 nanosheets: Magnetic property and photocatalytic activity

Autor:	Akira Miura, Takahiro Takei, Shu Yin, Chongshen Guo, Nobuhiro Kumada, Xiaoyong Wu, Qiang Dong, Tsugio Sato, Yoshinori Yonesaki
Rok vydání:	2014
Předmět:	Materials science Chemical engineering Process Chemistry and Technology Nickel oxide Non-blocking I/O Thermal decomposition Photocatalysis Microporous material Selected area diffraction Mesoporous material Catalysis General Environmental Science BET theory
Zdroj:	Applied Catalysis B: Environmental. 147:741-747
ISSN:	0926-3373
Popis:	Nickel hydroxide (β-Ni(OH) 2 ) nanosheets with a diameter of 400 nm and a thickness of 20 nm were successfully synthesized by a template and surfactant-free solvothermal route in a very simple system composed of LiOH·H 2 O and Ni-naphthenate. Furthermore, porous nickel oxide (NiO) nanosheets were obtained by thermal decomposition of β-Ni(OH) 2 nanosheets in air at 350–550 °C for 2 h. HRTEM and SAED results revealed that the microporous NiO nanosheets obtained at 350 °C were single-crystalline, and nitrogen adsorption–desorption measurements of the BET surface area and pore size of porous NiO nanosheets were 156 m 2 g −1 and 1.7 nm, respectively. Moreover, mesoporous NiO nanosheets and macroporous NiO nanosheets could be selectively obtained by controlling thermal decomposition temperature. The formation mechanism of porous NiO nanosheets was discussed. The magnetic property and photocatalytic activity of the porous NiO nanosheets were also investigated. The porous NiO nanosheets showed enhanced photocatalytic activity for NO destruction.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7c5a1c3eadc18c13cf145c902c49fca1 https://doi.org/10.1016/j.apcatb.2013.10.007 Zobrazit plný text záznamu Full Text from ScienceDirect