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Fabrication of PDMS/GA Composite Materials by Pickering Emulsion Method and Its Application for Oil-Water Separation

Author

Listed:
  • Biao Wang

    (Petroleum Engineering College, Northeast Petroleum University, Daqing 163318, China)

  • Qingwang Liu

    (Petroleum Engineering College, Northeast Petroleum University, Daqing 163318, China)

  • Zhenzhong Fan

    (Petroleum Engineering College, Northeast Petroleum University, Daqing 163318, China)

  • Ting Liang

    (South China Advanced Institute for Soft Matter Science and Technology, South China University of Technology, Guangzhou 510006, China)

  • Qilei Tong

    (Petroleum Engineering College, Northeast Petroleum University, Daqing 163318, China)

  • Yuanfeng Fu

    (Petroleum Engineering College, Northeast Petroleum University, Daqing 163318, China)

Abstract

With the intensification of human activities, a large amount of oil and organic solvent waste has been created, resulting in serious ecological and environmental pollution. Therefore, how to balance environmental benefits and economic benefits control a large number of organic solvent and oil pollution is an urgent problem. To solve this problem, a highly efficient oil-water separation material was designed and prepared in this paper. Graphene oxide aerogels were synthesized by the Pickering emulsion and hydrothermal method, and then hydrophobically lipophilic polydimethylsiloxane (PDMS) reduced graphene oxide aerogel composites (PDMS/GA) were obtained by modification of PDMS. The surface functional groups, hydrophobicity, thermal stability, and micromorphology of the materials were tested by various characterization methods. Their properties were tested by an oil absorption test and repeated experiments. The oil absorption performance experiments and repeated performance experiments of PDMS/GA are reported. The number of oxy-gen-containing functional groups of the modified graphene oxide (GO) decreased, and the contact angle of water was 134.4°. The adsorption capacity of n-hexane was up to 18.5 times its own weight. The material has the advantages of being lightweight, easy to recover, good hydrophobicity and lipophilicity, and has the potential for large-scale applications in the field of oil-water separation.

Suggested Citation

  • Biao Wang & Qingwang Liu & Zhenzhong Fan & Ting Liang & Qilei Tong & Yuanfeng Fu, 2021. "Fabrication of PDMS/GA Composite Materials by Pickering Emulsion Method and Its Application for Oil-Water Separation," Energies, MDPI, vol. 14(17), pages 1-10, August.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:17:p:5283-:d:622126
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    References listed on IDEAS

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    1. Hasnain Hafiz & Kosuke Suzuki & Bernardo Barbiellini & Naruki Tsuji & Naoaki Yabuuchi & Kentaro Yamamoto & Yuki Orikasa & Yoshiharu Uchimoto & Yoshiharu Sakurai & Hiroshi Sakurai & Arun Bansil & Venka, 2021. "Tomographic reconstruction of oxygen orbitals in lithium-rich battery materials," Nature, Nature, vol. 594(7862), pages 213-216, June.
    2. Rong Ye & Ming Zhao & Xianwen Mao & Zhaohong Wang & Diego A. Garzón & Heting Pu & Zhiheng Zhao & Peng Chen, 2021. "Nanoscale cooperative adsorption for materials control," Nature Communications, Nature, vol. 12(1), pages 1-9, December.
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