Phase-controlled synthesis of 3D flower-like Ni(OH) 2 architectures and their applications in water treatment

Sihan Ran; Yuguang Zhu; Hongtao Huang; Bo Liang; Jing Xu; Bin Liu; Jun Zhang; Zhong Xie; Zhuoran Wang; Jinhua Ye; Di Chen; Guozhen Shen

doi:10.1039/c2ce06308e

Phase-controlled synthesis of 3D flower-like Ni(OH) ₂ architectures and their applications in water treatment

Sihan Ran
, Yuguang Zhu
, Hongtao Huang
, Bo Liang
, Jing Xu
, Bin Liu
, Jun Zhang^*
, Zhong Xie
, Zhuoran Wang
, Jinhua Ye
, Di Chen
, Guozhen Shen

^*Corresponding author for this work

Huazhong University of Science and Technology
National Institute for Materials Science Tsukuba

Research output: Contribution to journal › Article › peer-review

50 Citations (Scopus)

Abstract

3D flower-like Ni(OH) ₂ architectures including α- and β-Ni(OH) ₂ phases, respectively, have been successfully synthesized via a facile microwave-assisted hydrothermal method. The as-prepared samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and N ₂ adsorption, respectively. The possible mechanism of Ni(OH) ₂ architectures has been discussed and found that the reaction temperature plays a critical role in the formation of two kinds of products. Specifically, flower-like β-Ni(OH) ₂ with monolayer petals and α-Ni(OH) ₂ with bilayer petals were prepared at 120 °C and 150 °C, respectively. It was suggested that both architectures hold the advantages of large surface-exposure areas and can be readily separated for wastewater treatment due to their particular surface microstructures. Adsorption results showed that both samples exhibited significantly different selectivities for cationic/anionic dyes such as methylene blue (MB) and acid fuschine in aqueous solutions. The hydrophilic properties of two samples were investigated at room temperature. Furthermore, the relationships among the adsorption abilities, the hydrophilic properties and their applications in wastewater treatment of Ni(OH) ₂ architectures have been discussed in detail.

Original language	English
Pages (from-to)	3063-3068
Number of pages	6
Journal	CrystEngComm
Volume	14
Issue number	9
DOIs	https://doi.org/10.1039/c2ce06308e
Publication status	Published - 7 May 2012
Externally published	Yes

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title = "Phase-controlled synthesis of 3D flower-like Ni(OH) 2 architectures and their applications in water treatment",

abstract = "3D flower-like Ni(OH) 2 architectures including α- and β-Ni(OH) 2 phases, respectively, have been successfully synthesized via a facile microwave-assisted hydrothermal method. The as-prepared samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and N 2 adsorption, respectively. The possible mechanism of Ni(OH) 2 architectures has been discussed and found that the reaction temperature plays a critical role in the formation of two kinds of products. Specifically, flower-like β-Ni(OH) 2 with monolayer petals and α-Ni(OH) 2 with bilayer petals were prepared at 120 °C and 150 °C, respectively. It was suggested that both architectures hold the advantages of large surface-exposure areas and can be readily separated for wastewater treatment due to their particular surface microstructures. Adsorption results showed that both samples exhibited significantly different selectivities for cationic/anionic dyes such as methylene blue (MB) and acid fuschine in aqueous solutions. The hydrophilic properties of two samples were investigated at room temperature. Furthermore, the relationships among the adsorption abilities, the hydrophilic properties and their applications in wastewater treatment of Ni(OH) 2 architectures have been discussed in detail.",

author = "Sihan Ran and Yuguang Zhu and Hongtao Huang and Bo Liang and Jing Xu and Bin Liu and Jun Zhang and Zhong Xie and Zhuoran Wang and Jinhua Ye and Di Chen and Guozhen Shen",

year = "2012",

month = may,

day = "7",

doi = "10.1039/c2ce06308e",

language = "English",

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pages = "3063--3068",

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T1 - Phase-controlled synthesis of 3D flower-like Ni(OH) 2 architectures and their applications in water treatment

AU - Ran, Sihan

AU - Zhu, Yuguang

AU - Huang, Hongtao

AU - Liang, Bo

AU - Xu, Jing

AU - Liu, Bin

AU - Zhang, Jun

AU - Xie, Zhong

AU - Wang, Zhuoran

AU - Ye, Jinhua

AU - Chen, Di

AU - Shen, Guozhen

PY - 2012/5/7

Y1 - 2012/5/7

N2 - 3D flower-like Ni(OH) 2 architectures including α- and β-Ni(OH) 2 phases, respectively, have been successfully synthesized via a facile microwave-assisted hydrothermal method. The as-prepared samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and N 2 adsorption, respectively. The possible mechanism of Ni(OH) 2 architectures has been discussed and found that the reaction temperature plays a critical role in the formation of two kinds of products. Specifically, flower-like β-Ni(OH) 2 with monolayer petals and α-Ni(OH) 2 with bilayer petals were prepared at 120 °C and 150 °C, respectively. It was suggested that both architectures hold the advantages of large surface-exposure areas and can be readily separated for wastewater treatment due to their particular surface microstructures. Adsorption results showed that both samples exhibited significantly different selectivities for cationic/anionic dyes such as methylene blue (MB) and acid fuschine in aqueous solutions. The hydrophilic properties of two samples were investigated at room temperature. Furthermore, the relationships among the adsorption abilities, the hydrophilic properties and their applications in wastewater treatment of Ni(OH) 2 architectures have been discussed in detail.

AB - 3D flower-like Ni(OH) 2 architectures including α- and β-Ni(OH) 2 phases, respectively, have been successfully synthesized via a facile microwave-assisted hydrothermal method. The as-prepared samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and N 2 adsorption, respectively. The possible mechanism of Ni(OH) 2 architectures has been discussed and found that the reaction temperature plays a critical role in the formation of two kinds of products. Specifically, flower-like β-Ni(OH) 2 with monolayer petals and α-Ni(OH) 2 with bilayer petals were prepared at 120 °C and 150 °C, respectively. It was suggested that both architectures hold the advantages of large surface-exposure areas and can be readily separated for wastewater treatment due to their particular surface microstructures. Adsorption results showed that both samples exhibited significantly different selectivities for cationic/anionic dyes such as methylene blue (MB) and acid fuschine in aqueous solutions. The hydrophilic properties of two samples were investigated at room temperature. Furthermore, the relationships among the adsorption abilities, the hydrophilic properties and their applications in wastewater treatment of Ni(OH) 2 architectures have been discussed in detail.

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DO - 10.1039/c2ce06308e

M3 - Article

AN - SCOPUS:84859782981

SN - 1466-8033

VL - 14

SP - 3063

EP - 3068

JO - CrystEngComm

JF - CrystEngComm

IS - 9

ER -

Phase-controlled synthesis of 3D flower-like Ni(OH) ₂ architectures and their applications in water treatment

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