Preparation and performance evaluation of graphene/hydroxypropyl methylcellulose composite aerogel for high viscosity oil adsorption

Guo, Qingchun; Chen, Shuang; Liu, Zexin; Yan, Jicong; Liu, Huie

doi:10.1016/j.jece.2022.108312

Cited by 20 publications

(5 citation statements)

References 42 publications

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“…Notably, the residual oxygen‐containing function groups of GA were beneficial for the chemical bonding with BP, since BP also contained abundant oxygen‐containing function groups. The position of most characteristic peaks shifted, indicating that BP and GA combined well 35 . For BP, the two peaks at 16.11° and 23.01° corresponded to the (1 1 0) and (0 0 2) crystal planes of II type cellulose 21 .…”

Section: Resultsmentioning

confidence: 96%

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Preparation and water/oil separation of super‐hydrophobic biomass adsorbent based on three‐dimensional graphene aerogel

Liu

Huang

et al. 2022

J of Chemical Tech & Biotech

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Water pollution caused by oil spills and organic solvents have seriously affected the quality of the environment, so the development of green and recyclable oil adsorbents with excellent properties has drawn massive attention from researchers. In this work, bamboo powder (BP) and reduced graphene oxide (GO) were used as raw materials to create a bamboo fiber/graphene aerogel (BGA) aerogel by a green one-pot hydrothermal method. Then, a three-dimensional aerogel super-hydrophobic modified bamboo fiber/graphene aerogel (H@BGA) with super-hydrophobic properties and a high adsorption capacity was synthesized by using hexadecyltrimethoxysilane (HDTMS) as hydrophobic modification reagent. In this unique ternary aerogel, both bamboo powder and HDTMS could improve the hydrophobicity of the aerogel. Furthermore, the uniformly interspersed bamboo fibers facilitated the exfoliation of graphene, constructing abundant pores and endowing the sample with a large specific area and excellent mechanical properties. The as-prepared H@BGA featured low density, high specific surface area, superhydrophobicity (WCA = 151.5°), and high adsorption capacity (55-123 g g −1 ). In addition, the adsorption capacity of H@BGA could remain above 95% after 8 cycles of the adsorption/desorption process. Overall, the aerogel has broad application prospects in the field of water/oil separation.

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Section: Resultsmentioning

confidence: 96%

“…The position of most wileyonlinelibrary.com/jctb characteristic peaks shifted, indicating that BP and GA combined well. 35 For BP, the two peaks at 16.11°and 23.01°corresponded to the (1 1 0) and (0 0 2) crystal planes of II type cellulose. 21 As for BGA, the broad peak at about 15°could be attributed to the overlap of GA and BP.…”

Section: Resultsmentioning

confidence: 96%

Preparation and water/oil separation of super‐hydrophobic biomass adsorbent based on three‐dimensional graphene aerogel

Liu

Huang

et al. 2022

J of Chemical Tech & Biotech

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“…The absorption peak near 1600 cm −1 is the tensile vibration peak of C–C. The absorption peaks at 1260 cm −1 , 1410 cm −1 , 2968 cm −1 , and the Si–C bond at 856 cm −1 are caused by the in-plane and out-of-plane bending vibrations of CH 3 on the Si–CH 3 group [ 20 , 21 , 22 ]. The methyl group in the silica aerogel mainly comes from two silicon sources during the preparation process, and the methyl group (–CH3) makes it hydrophobic.…”

Section: Resultsmentioning

confidence: 99%

Preparation of Super-Flexible Silica Aerogel and Its Application in Oil–Water Separation

Li,

Xu,

Zhang

et al. 2023

Gels

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Using silica as the precursor, and methyltrimethoxysilane and dimethyldimethoxysilane as the silicon sources, a super-flexible hydrophobic lipophilic gel solid was prepared via hydrolysis, drying, solvent replacement, and atmospheric-pressure drying. The characterization test showed that the sample had good flexibility, hydrophobicity, an amorphous structure, and a hydrophobic contact angle of 137°. Through the adsorption separation experiment, it was concluded that the adsorption separation rate of aerogel to oil substances is related to the viscosity of the oil substances. The hydrophobic and oleophilic properties of flexible silicon aerogel materials can be applied to many aspects, such as crude oil leakage and kitchen waste oil recovery, with broad future development prospects and great research significance.

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“…In hydrogen bonding based cross-linking technology several cross-linkers are widely applied: hydroxyl-containing PVA [86] (Fig. 2 g), oxygen containing hydroxypropyl cellulose [87], polyethylene oxide [88], and nitrogen functional groups containing compounds (EDA, polyamines) [88]. These materials create hydrogen bonds and provide stronger bonding force within the gelation process.…”

Section: F)mentioning

confidence: 99%

Advances of graphene-based aerogels and their modifications in lithium-sulfur batteries

Sultanov

Mentbayeva

Kalybekkyzy

et al. 2023

Carbon

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Preparation and performance evaluation of graphene/hydroxypropyl methylcellulose composite aerogel for high viscosity oil adsorption

Cited by 20 publications

References 42 publications

Preparation and water/oil separation of super‐hydrophobic biomass adsorbent based on three‐dimensional graphene aerogel

Preparation and water/oil separation of super‐hydrophobic biomass adsorbent based on three‐dimensional graphene aerogel

Preparation of Super-Flexible Silica Aerogel and Its Application in Oil–Water Separation

Advances of graphene-based aerogels and their modifications in lithium-sulfur batteries

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