3D graphitic carbon sphere foams as sorbents for cleaning oil spills

Sai-sai Li; Hai-jun Zhang; Long-hao Dong; Hai-peng Liu; Quan-li Jia; Dong Xu

doi:10.1007/s12613-020-2180-3

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3D graphitic carbon sphere foams as sorbents for cleaning oil spills

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Received: 22 May 2020; Revised: 22 August 2020; Accepted: 26 August 2020; Available online: 3 September 2020

Abstract

Frequent offshore oil spill accidents, industrial oily sewage and the indiscriminate disposal of urban oily sewage have caused serious impacts on human living environment and health. The traditional oil-water separation methods not only cause easily environmental secondary pollution, but also waste of limited resources. Therefore, in this work, 3D graphitic carbon sphere foams (3D-foams) possessed three-dimensional porous structure with pore size distribution of 25~200 μm, and high porosity of 62% were prepared for oil adsorption via foam-gel casting method using graphitic carbon spheres as starting materials. The resulted indicated that the water contact angle of as-prepared 3D-foams was 130°. The contents of graphitic carbon spheres (GCS) greatly influenced the hydrophobicity, water contact angle (WCA) and microstructure of the as-prepared samples. The adsorption capacities of as-prepared 3D-foams for paraffin oil, vegetable oil and vacuum pump oil were about 12~15 g/g, which were 10 times of that graphitic carbon spheres powder.

References

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沈阳化工大学材料科学与工程学院沈阳 110142

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3D graphitic carbon sphere foams as sorbents for cleaning oil spills

Corresponding author:

Hai-jun Zhang E-mail: zhanghaijun@wust.edu.cn

1. Key Laboratory of Green Fabrication and Surface Technology of Advanced Metal Materials, Anhui University of Technology, Ma'anshan 243002, China

2. The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China

3. High Temperature Ceramic Institute, Zhengzhou University, Zhengzhou 450052, China

Received: 22 May 2020
Revised: 22 August 2020
Accepted: 26 August 2020
Available online: 3 September 2020

Abstract: Frequent offshore oil spill accidents, industrial oily sewage and the indiscriminate disposal of urban oily sewage have caused serious impacts on human living environment and health. The traditional oil-water separation methods not only cause easily environmental secondary pollution, but also waste of limited resources. Therefore, in this work, 3D graphitic carbon sphere foams (3D-foams) possessed three-dimensional porous structure with pore size distribution of 25~200 μm, and high porosity of 62% were prepared for oil adsorption via foam-gel casting method using graphitic carbon spheres as starting materials. The resulted indicated that the water contact angle of as-prepared 3D-foams was 130°. The contents of graphitic carbon spheres (GCS) greatly influenced the hydrophobicity, water contact angle (WCA) and microstructure of the as-prepared samples. The adsorption capacities of as-prepared 3D-foams for paraffin oil, vegetable oil and vacuum pump oil were about 12~15 g/g, which were 10 times of that graphitic carbon spheres powder.

3D graphitic carbon sphere foams as sorbents for cleaning oil spills

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通讯作者: 陈斌, bchen63@163.com

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