Grass-modified graphene aerogel for effective oil-water separation

Song, Yan; Li, Huihui; Gao, Yue; Yue, Qinyan; Kong, Wenjia; Zang, Yanan; Jiang, Wenqiang

doi:10.1016/j.psep.2019.06.018

Cited by 40 publications

(16 citation statements)

References 69 publications

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“…This result was roughly consistent with the conclusions of other works. 37,38 To evaluate the regeneration and reusability of the aerogel, the four kinds of various oils were chosen to explore the recycling performance. The adsorption capacity of the 40%-HPP-RGO after eight cycles of testing for the pump oil, soybean oil, and engine oil as well as the diesel oil maintained 95.8, 96.6, 95.4, and 96.2%, respectively (Figure 9).…”

Section: ■ Results and Discussionmentioning

confidence: 99%

High-Performance Three-Dimensional Aerogel Based on Hydrothermal Pomelo Peel and Reduced Graphene Oxide as an Efficient Adsorbent for Water/Oil Separation

Huang

et al. 2021

Langmuir

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In this study, HPP-RGO aerogels, which were based on a hydrothermal pomelo peel (HPP) and reduced graphene oxide (RGO), were fabricated by using a green and ecofriendly two-step hydrothermal method. The characterization results showed that the HPP-RGO aerogel was endowed with extremely low density, high specific area, robust thermal stability, good mechanical property, stable acid−alkali resistance, superior recyclability, and excellent hydrophobicity and lipophilicity. Remarkably, the typical 40%-HPP-RGO aerogel presented a preferable adsorption capacity (45−80 g•g −1 ). Moreover, continuous water/oil separation was achieved via the water ring vacuum pump. The successful preparation of the HPP-RGO aerogel endows the pomelo peel with high value-added properties and improves the comprehensive utilization of agricultural wastes. Furthermore, it would open up bright prospects for the field of oil adsorption and water/oil separation.

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Section: ■ Results and Discussionmentioning

confidence: 99%

High-Performance Three-Dimensional Aerogel Based on Hydrothermal Pomelo Peel and Reduced Graphene Oxide as an Efficient Adsorbent for Water/Oil Separation

Huang

et al. 2021

Langmuir

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“…Thus, the a-GPCCA fabricated in this study has promising potential in the field of the offshore oil spill treatment and domestic industrial wastewater [ 127 ]. Song et al [ 128 ] have successfully synthesized a grass-modified graphene aerogel (GGA) using an environmentally friendly, simple, and low-cost hydrothermal treatment. The graphene aerogel properties have been significantly enhanced by introducing the grass powder, leading to a highly efficient selective adsorption process.…”

Section: Graphene-based Membranes In Oil/water Separationmentioning

confidence: 99%

“…This study demonstrates that the GGA is a very good and promising candidate in the oil/water separation field and spill oil clean-up for environmental remediation. Moreover, the addition of grass enhances the graphene aerogel’s oil adsorption efficiency, hydrophobicity, and mechanical property, providing a new route for high-value utilization of biomass waste [ 128 ]. Huang et al [ 117 ] synthesized cork-like graphene aerogels via the EDA-ammonia double hydrothermal reduction method.…”

Section: Graphene-based Membranes In Oil/water Separationmentioning

confidence: 99%

“…Therefore, the results of this study offered a facile method for the clean-up of crude oil polluted water and the removal toxic organic solvents [ 87 ]. Song et al [ 128 ] reported the synthesis of stable, cost-effective, and recyclable superhydrophobic reduced graphene oxide modified melamine foam (RGMF) using an ultrasonic-microwave synergistic method for the first time. The synthesized RGMF demonstrated an excellent selective adsorption capacity for several types of oils and organic solvents from water.…”

Section: Graphene-based Membranes In Oil/water Separationmentioning

confidence: 99%

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Recent Developments and Advancements in Graphene-Based Technologies for Oil Spill Cleanup and Oil–Water Separation Processes

et al. 2021

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The vast demand for petroleum industry products led to the increased production of oily wastewaters and has led to many possible separation technologies. In addition to production-related oily wastewater, direct oil spills are associated with detrimental effects on the local ecosystems. Accordingly, this review paper aims to tackle the oil spill cleanup issue as well as water separation by providing a wide range of graphene-based technologies. These include graphene-based membranes; graphene sponges; graphene-decorated meshes; graphene hydrogels; graphene aerogels; graphene foam; and graphene-coated cotton. Sponges and aerogels modified by graphene and reduced graphene oxide demonstrated effective oil water separation owing to their superhydrophobic/superoleophilic properties. In addition, oil particles are intercepted while allowing water molecules to penetrate the graphene-oxide-coated metal meshes and membranes thanks to their superhydrophilic/underwater superoleophobic properties. Finally, we offer future perspectives on oil water separation that are hindering the advancements of such technologies and their large-scale applications.

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“…In recent years, graphene-based sponges, graphene gels, graphene/carbon nanotube composites and graphene-based separation membranes have been reported more and more in the field of adsorbent and oil-water separation. The above materials not only have a large oil absorption capacity, but also exhibit excellent recycling characteristics [179][180][181][182][183].…”

Section: Oily Wastewater Treatmentmentioning

confidence: 99%

Applications of Graphene and Its Derivatives in the Upstream Oil and Gas Industry: A Systematic Review

Ke-jian

Tang

et al. 2020

Nanomaterials

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Graphene and its derivatives, with their unique two-dimensional structures and excellent physical and chemical properties, have been an international research hotspot both in the research community and industry. However, in application-oriented research in the oil and gas industry they have only drawn attention in the past several years. Their excellent optical, electrical, thermal and mechanical performance make them great candidates for use in oil and gas exploration, drilling, production, and transportation. Combined with the actual requirements for well working fluids, chemical enhanced oil recovery, heavy oil recovery, profile control and water shutoff, tracers, oily wastewater treatment, pipeline corrosion prevention treatment, and tools and apparatus, etc., this paper introduces the behavior in water and toxicity to organisms of graphene and its derivatives in detail, and comprehensively reviews the research progress of graphene materials in the upstream oil and gas industry. Based on this, suggestions were put forward for the future research. This work is useful to the in-depth mechanism research and application scope broadening research in the upstream oil and gas industry.

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Grass-modified graphene aerogel for effective oil-water separation

Cited by 40 publications

References 69 publications

High-Performance Three-Dimensional Aerogel Based on Hydrothermal Pomelo Peel and Reduced Graphene Oxide as an Efficient Adsorbent for Water/Oil Separation

High-Performance Three-Dimensional Aerogel Based on Hydrothermal Pomelo Peel and Reduced Graphene Oxide as an Efficient Adsorbent for Water/Oil Separation

Recent Developments and Advancements in Graphene-Based Technologies for Oil Spill Cleanup and Oil–Water Separation Processes

Applications of Graphene and Its Derivatives in the Upstream Oil and Gas Industry: A Systematic Review

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