Evaluation of the performance on reduced graphene oxide synthesized using ascorbic acid and sodium borohydride: Experimental designs‐based multi‐response optimization application

Korucu, Haluk

doi:10.1016/j.molstruc.2022.133715

Cited by 14 publications

(5 citation statements)

References 56 publications

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“…Reducing agents such as sodium borohydride [14,54,59], sodium citrate [56], ascorbic acid, hydrazine hydrate [60], hydroxylamine [49], and tri-octyl-phosphine [61] have been used to produce AgNPs from silver salts. The relatively high reactivity of borohydride and its non-toxicity makes the borohydride reduction the most commonly used technique to prepare AgNPs [15,62,63].…”

Section: Chemical Reduction Of Silver Saltsmentioning

confidence: 99%

Versatile Silver-Nanoparticle-Impregnated Membranes for Water Treatment: A Review

et al. 2023

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Increased affordability, smaller footprint, and high permeability quality that meets stringent water quality standards have accelerated the uptake of membranes in water treatment. Moreover, low pressure, gravity-based microfiltration (MF) and ultrafiltration (UF) membranes eliminate the use of electricity and pumps. However, MF and UF processes remove contaminants by size exclusion, based on membrane pore size. This limits their application in the removal of smaller matter or even harmful microorganisms. There is a need to enhance the membrane properties to meet needs such as adequate disinfection, flux amelioration, and reduced membrane fouling. To achieve these, the incorporation of nanoparticles with unique properties in membranes has potential. Herein, we review recent developments in the impregnation of polymeric and ceramic microfiltration and ultrafiltration membranes with silver nanoparticles that are applied in water treatment. We critically evaluated the potential of these membranes in enhanced antifouling, increased permeability quality and flux compared to uncoated membranes. Despite the intensive research in this area, most studies have been performed at laboratory scale for short periods of time. There is a need for studies that assess the long-term stability of the nanoparticles and the impact on disinfection and antifouling performance. These challenges are addressed in this study and future directions.

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Section: Chemical Reduction Of Silver Saltsmentioning

confidence: 99%

Versatile Silver-Nanoparticle-Impregnated Membranes for Water Treatment: A Review

et al. 2023

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“…The selection of the best process for removing color with the use of adsorbent materials [18], the improvement of the GO dispersion properties [19], the selection of graphene oxide nanocomposites [20], the optimization of the mixture proportions of graphene oxide [21] and the evaluation of the performance on reduced graphene oxide synthesized [22] have been performed with the TOPSIS method. However, no study has been done on the optimization of the physicochemical, mechanical, and biological characteristics of GO previously.…”

Section: Literature Reviewmentioning

confidence: 99%

Optimization of Graphene Oxide’s Characteristics with TOPSIS Using an Automated Decision-Making Process

Javanbakht

2023

JES

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The present study focuses on a new application of TOPSIS to predict and optimize graphene oxide’s characteristics. Although this carbon-based material has been investigated previously, its optimization with this method using an automated decision-making process has not been performed yet. The major problem in the design and analysis of this nanomaterial is the lack of information on comparing its characteristics, which has led to the use of diverse methods that have not been appropriately compared. Moreover, their advantages and inconveniences could be investigated better once this investigation provides information on optimizing its candidates. In the current research work, a novel automated decision-making process was used with the TOPSIS algorithm using the Łukasiewicz disjunction, which helped detect the confusion of properties and determine its impact on the rank of candidates. Several characteristics of graphene oxide, such as its antibiofilm activity, hemocompatibility, activity with ferrous ions in hydrogen peroxide, rheological properties, and the cost of its preparation, have been considered in its analysis with TOPSIS. The results of this study revealed that the consideration of the criteria of this nanomaterial as profit or cost criteria would impact the distances of candidates from the alternatives. Moreover, the ranks of the candidates changed when the rheological properties were considered differently in the data analysis. This investigation can help improve the use of this nanomaterial in academic and industrial investigations.

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“…Alternatively, chemical reduction may be carried out by using hydrazine, 10,11 metal hydrides, 12 ascorbic acid (AA), 13 hydriodic acid, 14 hydroquinone, 15 or p ‐phenylene diamine 16 . Among them, AA is considered a “green” reducing reagent because it is mild, water soluble and environmentally friendly 17–19 . No matter which reduction method is applied, the functional groups cannot be completely removed and only a portion of conjugated graphene network can be restored.…”

Section: Introductionmentioning

confidence: 99%

“…16 Among them, AA is considered a "green" reducing reagent because it is mild, water soluble and environmentally friendly. [17][18][19] No matter which reduction method is applied, the functional groups cannot be completely removed and only a portion of conjugated graphene network can be restored. Despite the defects and vacancies remaining in the structure, stacking GO or rGO sheets might result in a highly interlocked multilayer structure, which is expected to hinder gas diffusion as the gas molecules would have to go through the interlayer space with a tortuous path.…”

Section: Introductionmentioning

confidence: 99%

Enhancing thermal stability of polycarbonate films with one‐sided coating of graphene oxide

Nguyen

Wei

2023

J of Applied Polymer Sci

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In this study, polycarbonate (PC) films were coated with a thin layer of graphene oxide (GO) or its reduced form (rGO) via vacuum filtration. The effects of the coating on PC were studied by means of modulated differential scanning calorimetry (mDSC), thermogravimetric analysis (TGA), and scanning electron microscopy. As shown by mDSC, there was no significant change in glass transition temperature (Tg), indicating little molecular interaction between the PC and the coating. In addition, GO and rGO showed poorer thermal stability than the neat PC, which is consistent with the literature. Despite these findings, both GO‐ and rGO‐coated PC films exhibited significantly higher onset thermal degradation temperatures than the neat PC. Moreover, when the rGO loading was below a certain level, the coated PC films demonstrated a comprehensive enhancement in thermal stability over the entire temperature range of TGA measurement. Such enhancement could be observed even at very low rGO loadings when the surface of the PC film was partially coated.

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Evaluation of the performance on reduced graphene oxide synthesized using ascorbic acid and sodium borohydride: Experimental designs‐based multi‐response optimization application

Cited by 14 publications

References 56 publications

Versatile Silver-Nanoparticle-Impregnated Membranes for Water Treatment: A Review

Versatile Silver-Nanoparticle-Impregnated Membranes for Water Treatment: A Review

Optimization of Graphene Oxide’s Characteristics with TOPSIS Using an Automated Decision-Making Process

Enhancing thermal stability of polycarbonate films with one‐sided coating of graphene oxide

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