Preparation and oil absorption performance of sponge-like activated carbon/organic composites

MA Wei; XU Sai-nan; CHEN Ke; GUO Yu-qiang; ZHAO Feng-hui; CHEN Yong

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Article Navigation > New Carbon Mater. > 2015 > 30(5): 425-431

MA Wei, XU Sai-nan, CHEN Ke, GUO Yu-qiang, ZHAO Feng-hui, CHEN Yong. Preparation and oil absorption performance of sponge-like activated carbon/organic composites. New Carbon Mater., 2015, 30(5): 425-431.

Citation:

MA Wei, XU Sai-nan, CHEN Ke, GUO Yu-qiang, ZHAO Feng-hui, CHEN Yong. Preparation and oil absorption performance of sponge-like activated carbon/organic composites. New Carbon Mater., 2015, 30(5): 425-431.

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Preparation and oil absorption performance of sponge-like activated carbon/organic composites

Key Laboratory of Tropical Biological Resources of Ministry of Education, Key Laboratory of Ministry of Education for Advanced Materials in Tropical Islang Resources, Hainan Provincial Key Laboratory of Research on Utilization of Si-Zr-Ti Resources, College of Materials and Chemical Engineering, Hainan University, Haikou 570228, China

Funds: National Natural Science Foundation of China(51162006,51362009);Undergraduate Training Project for Innova-tion and Entrepreneurship(201210589005).

Received Date: 2014-06-12
Accepted Date: 2015-11-10
Rev Recd Date: 2014-10-12
Publish Date: 2015-10-28

Abstract

Abstract

Activated carbons in powder and monolithic form easily form sediments in water, leading to the failure to adsorb an oil film on the water surface. To solve these problems, coconut shell activated carbons were modified to increase their oil-absorption ability and a 3D sponge-like activated carbon/organic composite was then prepared through polymerization of polyvinyl alcohol with formalin in the presence of a foaming agent and the modified activated carbon. The effects of the amounts of water, activated carbon, dilute sulfuric acid (9%) and formaldehyde solution (40%), and reaction temperature on the oil adsorption performance of the composites were investigated. The composites had a hierarchical porous structure and floated on the water surface due to their low density (about 0.197 7 g/cm³). A composite prepared under optimal conditions can adsorb approximately 1.5 times as much oil as the original activated carbon. Its robust and flexible properties make it suitable for recycling during use.
- Activated carbon,
- Modification,
- Composite,
- Oil absorption

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References(24)

References

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