Comparative life cycle assessment of seawater desalination technologies enhanced by graphene membranes

Skuse, Clara; Tarpani, Raphael Ricardo Zepon; Gorgojo, Patricia; Gallego‐Schmid, Alejandro; Azapagic, Adisa

doi:10.1016/j.desal.2023.116418

Cited by 16 publications

(1 citation statement)

References 105 publications

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“…Graphene is an allotrope of carbon constituted by a two-dimensional monolayer of carbon atoms forming a hexagonal lattice. Graphene and its derivatives (graphene oxide and reduced graphene oxide) have remarkable properties and they have been proposed for multiple applications such as adsorbents for dye separation [1], anti-corrosion coatings [2], drug delivery [3], desalination [4], and as a catalyst for hydrogen generation [5], among others. They exhibit a high specific area, abundant functional groups and sp 2 hybridization, showing a high affinity to aromatic compounds.…”

Section: Introductionmentioning

confidence: 99%

Reduced Graphene Oxide as a Platform for the Immobilization of Amino-Cyclodextrins

2023

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In the present work, we reported on a method to combine amino β-cyclodextrins (CD1) with reduced graphene oxide (obtained by the electrochemical reduction of graphene oxide, erGO) to produce a glassy carbon electrode (GCE) modified with both CD1 and erGO (CD1-erGO/GCE). This procedure avoids the use of organic solvents such as hydrazine or long reaction times and high temperatures. The material combining both CD1 and erGO (CD1-erGO/GCE) was characterized by SEM, ATR-FTIR, Raman, XPS, and electrochemical techniques. As proof-of-concept, the determination of the pesticide carbendazim was carried out. The spectroscopic measurements, especially XPS, proved that CD1 was covalently attached to the surface of the erGO/GCE electrode. The attachment of cyclodextrin at the reduced graphene oxide produced an increase in the electrochemical behavior of the electrode. The cyclodextrin-functionalized reduced graphene oxide, CD1-erGO/GCE, showed a larger sensitivity (1.01 μA/μM) and a lower limit of detection for carbendazim (LOD = 0.50 μM) compared with the non-functionalized material, erGO/GCE, (sensitivity = 0.63 μA/μM and LOD = 4.32 μM, respectively). Overall, the results of the present work show that this simple method is suitable to attach cyclodextrins to graphene oxide, maintaining their inclusion abilities.

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Section: Introductionmentioning

confidence: 99%

Reduced Graphene Oxide as a Platform for the Immobilization of Amino-Cyclodextrins

2023

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A Hybrid Deep Learning‐Based Power Management Strategy for PV‐Assisted Desalination Plant

Almashnowi,

AlGhamdi,

Alamier

et al. 2024

Part & Part Syst Charact

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The increasing global need for freshwater has led to the widespread implementation of photovoltaic (PV) assisted desalination facilities as a viable and environmentally friendly remedy. The necessity for these plants resides in executing an effective power management strategy to provide dependable and economically feasible water generation. This paper utilizes a mixed architecture consisting of a convolutional neural network (CNN) and a deep Q‐learning Network (DQN) to implement a hybrid deep learning‐based power management strategy. The presented approach is modeled and executed in matrix laboratory (MATLAB) language, and the experimental findings validated that this algorithm achieved a computational time of 0.2 s and an energy loss of 0.01 megawatts, which is lower than the conventional models. Furthermore, the proposed strategy achieved a remarkable fit with an accuracy rate of 0.99, demonstrating its effectiveness in handling diverse load power and solar profiles in power management. Implementing this hybrid approach holds promise for a substantial reduction in operational expenditures and the advancement of sustainability in freshwater generation, making a valuable contribution toward a more environmentally friendly and optimized future for the desalination sector.

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Recent advances in graphene-based nano-membranes for desalination

Ali,

Zenab Hasan,

Garcia

et al. 2024

Chemical Engineering Journal

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Comparative life cycle assessment of seawater desalination technologies enhanced by graphene membranes

Cited by 16 publications

References 105 publications

Reduced Graphene Oxide as a Platform for the Immobilization of Amino-Cyclodextrins

Reduced Graphene Oxide as a Platform for the Immobilization of Amino-Cyclodextrins

A Hybrid Deep Learning‐Based Power Management Strategy for PV‐Assisted Desalination Plant

Recent advances in graphene-based nano-membranes for desalination

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