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Liang Dai
Key laboratory of Yellow River Water Environment in Gansu Province, Lanzhou 730070, China

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Journal article
Published: 02 September 2020 in Processes
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For continuous and efficient oil/water separation and adsorption of dyes, coconut shell powder was grafted onto the surface of quartz sand by dip-coating method to make coconut shell powder-covered quartz sand filter media (CSQS) with superhydrophilic and underwater superoleophobic properties and superoleophilic and underoil highly hydrophobic properties. The contact angles of the underwater oil and underoil water with CSQS were more than 151.2° and 134.2°, respectively. A continuous oil/water separation device was designed. The separation device filled with CSQS can separate oil/water mixture (whether heavy or light oil) into water and oil at the same time with a separation efficiency of above 99.92%. The filter layer can be recovered through reverse extrusion even after lyophobic liquid penetrated the filter layer; hence, the separation efficiency of the filter layer was still above 99.99% for diesel and water mixture. Simultaneously, CSQS can effectively adsorb methylene blue with the highest removal rate as 98.94%. CSQS can maintain stable wettability under harsh environment conditions. This paper provides a new idea on continuous and efficient oil/water separation and simultaneous dye adsorption.

ACS Style

Bigui Wei; Xuying Luo; Xiaosan Song; Hanyue Guo; Liang Dai; Hongwei Zhang; Gang Wang. Quartz Sand Filter Media with Special Wettability for Continuous and Efficient Oil/Water Separation and Dye Adsorption. Processes 2020, 8, 1083 .

AMA Style

Bigui Wei, Xuying Luo, Xiaosan Song, Hanyue Guo, Liang Dai, Hongwei Zhang, Gang Wang. Quartz Sand Filter Media with Special Wettability for Continuous and Efficient Oil/Water Separation and Dye Adsorption. Processes. 2020; 8 (9):1083.

Chicago/Turabian Style

Bigui Wei; Xuying Luo; Xiaosan Song; Hanyue Guo; Liang Dai; Hongwei Zhang; Gang Wang. 2020. "Quartz Sand Filter Media with Special Wettability for Continuous and Efficient Oil/Water Separation and Dye Adsorption." Processes 8, no. 9: 1083.

Journal article
Published: 02 April 2019 in Applied Sciences
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To improve the adsorption and separation efficiency of lead-containing wastewater by graphene oxide (GO), attapulgite (ATP) was used through a simple hydrothermal reaction. The prepared GO was characterized by SEM, TEM, FTIR, and XPS. The adsorption properties of the prepared GO were investigated. The maximum adsorption capacity of Pb2+ on as-prepared GO at pH 5 and 25 °C was 450.9 mg/g. It is concluded that the as-prepared GO can be used as a high-efficiency adsorbent for lead-containing wastewater.

ACS Style

Bigui Wei; Xiabing Cheng; Gang Wang; Hua Li; Xiaosan Song; Liang Dai. Graphene Oxide Adsorption Enhanced by Attapulgite to Remove Pb (II) from Aqueous Solution. Applied Sciences 2019, 9, 1390 .

AMA Style

Bigui Wei, Xiabing Cheng, Gang Wang, Hua Li, Xiaosan Song, Liang Dai. Graphene Oxide Adsorption Enhanced by Attapulgite to Remove Pb (II) from Aqueous Solution. Applied Sciences. 2019; 9 (7):1390.

Chicago/Turabian Style

Bigui Wei; Xiabing Cheng; Gang Wang; Hua Li; Xiaosan Song; Liang Dai. 2019. "Graphene Oxide Adsorption Enhanced by Attapulgite to Remove Pb (II) from Aqueous Solution." Applied Sciences 9, no. 7: 1390.