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

Li, Dandan; Huang, Jiwei; Huang, Langhuan; Tan, Shaozao

doi:10.1021/acs.langmuir.0c03062

Cited by 33 publications

(21 citation statements)

References 51 publications

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“…For example, the cationic dye molecule MB (methylene blue) exhibits a maximum adsorption capacity at a pH of 10.0 with GO powders dispersed in the MB-containing solution [50]. Ion exchange has also been proposed as the adsorption mechanism for the removal of heavy metal cations at low pH, where the metal cations are exchanged with the protons in the COOH and OH functional groups [51].…”

Section: Adsorption At Graphene Oxidementioning

confidence: 99%

Graphene-Based Materials Immobilized within Chitosan: Applications as Adsorbents for the Removal of Aquatic Pollutants

et al. 2021

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Graphene and its derivatives, especially graphene oxide (GO), are attracting considerable interest in the fabrication of new adsorbents that have the potential to remove various pollutants that have escaped into the aquatic environment. Herein, the development of GO/chitosan (GO/CS) composites as adsorbent materials is described and reviewed. This combination is interesting as the addition of graphene to chitosan enhances its mechanical properties, while the chitosan hydrogel serves as an immobilization matrix for graphene. Following a brief description of both graphene and chitosan as independent adsorbent materials, the emerging GO/CS composites are introduced. The additional materials that have been added to the GO/CS composites, including magnetic iron oxides, chelating agents, cyclodextrins, additional adsorbents and polymeric blends, are then described and discussed. The performance of these materials in the removal of heavy metal ions, dyes and other organic molecules are discussed followed by the introduction of strategies employed in the regeneration of the GO/CS adsorbents. It is clear that, while some challenges exist, including cost, regeneration and selectivity in the adsorption process, the GO/CS composites are emerging as promising adsorbent materials.

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Section: Adsorption At Graphene Oxidementioning

confidence: 99%

Graphene-Based Materials Immobilized within Chitosan: Applications as Adsorbents for the Removal of Aquatic Pollutants

et al. 2021

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“…(5) (6) According to the principle of fluid continuity (7) where: A1 is the area at the overcurrent section 1, m 2 ;…”

Section: Calculation Model Of Flow Resistance Of Valvementioning

confidence: 99%

“…(Corvaglia A. et al, 2021). Through the three-dimensional simulation model of oil pump, the internal structure of oil pump is optimized, the phenomenon of trapped oil and cavitation is improved, and the pressure loss at the corner and joint of complex casting oil channel is accurately predicted, which provides an important basis for the setting of oil pump (Li D. et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Three Dimensional Simulation of Oil Flow Characteristics in Lubrication System of Rotary Tillage Engine

Gao¹,

Gao²,

Zou³

2021

INMATEH

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Taking the lubrication system of rotary tillage engine as the research object, this paper makes a three-dimensional simulation study on the oil flow characteristics in the lubricating oil passage. The oil supply of the oil pump shall be greater than the circulating oil required by the lubrication system to ensure the lubrication of the rotary cultivator. Lubrication system is an important part to ensure the reliability and durability of rotary cultivator. The key component to achieve its performance is the oil pump. The geometric model of lubricating oil flow field in rotary tiller lubrication system is established by using FLUENT software. The results show that the pressure drop in the lubricating oil passage of the main bearing is the largest under the same working conditions. In the oil passage of the cylinder head, the pressure drop of the front main oil passage is the largest and the oil discharge is the largest. Add 1.6mm oil pump rotor on the basis of the thickness of the original oil pump rotor, the oil flow at the connecting rod nozzle reaches the flow index of the original rotary cultivator, and there is no cylinder pulling phenomenon of the rotary cultivator.

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“…Three-dimensional (3D) aerogels are one of the lightest solids in the world, with low density and high surface area and porosity, making them very suitable for applications such as absorption, − impacting energy damping, and impacting heat and acoustic insulation. , In particular, superhydrophobic aerogels, − whose hydrophobic surface can selectively adsorb the oil phase from oily wastewater, are regarded as an ideal material for cleaning oily pollution and separating oil/water mixtures. In the past few decades, various aerogels have been successfully applied to effectively remove oil pollutants. − More recently, by assembling MOFs on the surface of biomass fiber and then directly carbonizing them, carbon aerogels with the three-dimensional porous structure have been prepared to adsorb 35–119 times their own weight in organic pollutants .…”

Section: Introductionmentioning

confidence: 99%

Superhydrophobic Waste Cardboard Aerogels as Effective and Reusable Oil Absorbents

Shi

Zhong

et al. 2021

Langmuir

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As the main component of the municipal waste, waste cardboard has caused a host of environmental problems. Therefore, the reasonable disposal of waste cardboard is of great significance to global sustainable development and green economics. Herein, using waste cardboard as the raw material, a superhydrophobic aerogel has been developed with a unique three-dimensional porous network structure, which exhibits excellent selective oil absorption capacities. The aerogel was made by combining Ca 2+ cross-links and postmodification with stearic acid. Superhydrophobic aerogels can absorb various organic solutions and its maximum absorption capacity can reach 47 times its own weight. Meanwhile, the size of aerogels has been further expanded, with a diameter of 21.2 cm and a height of 3.2 cm, which can absorb 34 times its own weight of kerosene. More importantly, the aerogel can also absorb oil droplets in oil/water emulsions with an adsorption efficiency of over 98.5%. Moreover, the aerogel can be employed multiple times without significantly reducing the adsorption capacity via distillation or squeezing, depending upon the type of pollutions. Consequently, we believe that these facile and inexpensive superhydrophobic aerogels can effectively adsorb oily wastewater, which matches well with the requirement for environmentally friendliness from the perspective of practical application.

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

Cited by 33 publications

References 51 publications

Graphene-Based Materials Immobilized within Chitosan: Applications as Adsorbents for the Removal of Aquatic Pollutants

Graphene-Based Materials Immobilized within Chitosan: Applications as Adsorbents for the Removal of Aquatic Pollutants

Three Dimensional Simulation of Oil Flow Characteristics in Lubrication System of Rotary Tillage Engine

Superhydrophobic Waste Cardboard Aerogels as Effective and Reusable Oil Absorbents

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