GO/ionic surfactant inspired photophysical modulation of rhodamine B in Reline with or without additives

Chavda, Vishwajit; Hirpara, Darshna; Kumar, Sanjeev

doi:10.1016/j.molliq.2022.120614

Cited by 8 publications

(4 citation statements)

References 83 publications

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“…DES (reline) was synthesized and characterized using the same procedure as previously reported. , In summary, a mixture of dried ChCl and urea in a 1:2 molar ratio was heated at 80 °C under continuous stirring for about 2 h until a clear fluid was observed. Subsequently, this fluid was allowed to equilibrate for 24 h in a vacuum oven at 40 °C.…”

Section: Methodsmentioning

confidence: 99%

“…GO and DES (reline) have been synthesized and characterized following a method published earlier. ,,, ChCl (99%, AR grade) was obtained from TCI chemicals, India, and utilized after undergoing vacuum drying at 40 °C. Urea (99%, AR grade) was procured from Sigma-Aldrich, India, and used without additional purification.…”

Section: Methodsmentioning

confidence: 99%

“…A novel class of solvents, referred to as deep eutectic solvents (DES), has been identified as a promising alternative to ionic liquids, offering enhanced solvent properties . DESs are produced by combining a quaternary ammonium or phosphonium salt (acting as a hydrogen-bond acceptor) with an uncharged hydrogen-bond donor (e.g., amines, alcohols, or carboxylic acids) at specific ratios to yield a mixture with a considerably lower melting point. , The most commonly used DES is a mixture of choline chloride (ChCl) and urea, which is prepared at a molar ratio of ChCl/urea = 1:2 (known as reline). The above DES components are readily available, cost-effective, and environmentally friendly .…”

Section: Introductionmentioning

confidence: 99%

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Deep Eutectic Solvent/Surfactant-Engineered GO@TiO₂ Advanced Material for Sustained and Ultrafast Adsorption of Hazardous Dye from Contaminated Aqueous Environment

Chavda,

Hirpara,

Rao

et al. 2024

ACS Appl. Eng. Mater.

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Hybrid carbon-based materials are in demand to achieve the desired activities in various fields. However, such materials lack aqueous dispersibility or mechanical strength, which can be addressed by certain modifiers such as surfactants, polymers, metal oxides, and deep eutectic solvents (DESs), among others. Dodecyl trimethylammonium bromide (DTAB) and a typical DES (reline; choline chloride/urea, 1:2) have been employed in conjunction with graphene oxide−titanium oxide nanocomposites (GO@TiO 2 NCs) to get advanced adsorbents (which are characterized by various physicochemical techniques). A model hazardous dye, methylene blue (MB), was used to study the adsorption potential of the above-developed material. The process was optimized in terms of the adsorbent dose, initial MB concentration, pH, and contact time. Various kinetic and adsorption isotherm models were used to analyze the data. Pseudosecond-order kinetics (R 2 = 0.999) has been followed by the Langmuir adsorption isotherm (R 2 = 0.998). Kinetics revealed that 100% MB adsorption was achieved with DES-based NC (DES-GO@TiO 2 ), which is better than that with both DTAB-based (DT-GO@TiO 2 ) and pure pristine material (GO@TiO 2 ). It is proposed that DES (reline) couples TiO 2 on the GO surface with an alternative route to drive MB from an aqueous background. Adsorption data were compared with other similar reported adsorbents, and it was found that the developed DES-based advanced material shows ultrafast MB adsorption (the rate of adsorption has been found to be 222 μg MB per gram of DES-GO@TiO 2 in 1 s). The sustainability and economy of the adsorbent were revealed by repeating numerous adsorption cycles (up to seven times) without losing the adsorption efficiency. The study can be applied in various chemical industries where color or coloring material is involved in the effluent. Further, other similar greener DESs should be used in order to develop sustainable structure−performance relationship for a safer environment.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Deep Eutectic Solvent/Surfactant-Engineered GO@TiO₂ Advanced Material for Sustained and Ultrafast Adsorption of Hazardous Dye from Contaminated Aqueous Environment

Chavda,

Hirpara,

Rao

et al. 2024

ACS Appl. Eng. Mater.

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“…These discoveries hold importance for the processing of graphene and related carbon materials in choline chloride-based DESs and their utilization in such electrolytes. Kumar et al evaluated the behavior of rhodamine B (RB) in the DES called "Reline" (choline chloride-urea) with or without GO [100]. The researchers explored the synergistic effects of the GO and DES on the photophysical processes by changing the solvent nature and GO amounts, finding that the fluorescence of RB can be notably altered (either enhanced or quenched) by the presence of a surfactant or GO.…”

Section: Enhancing Sensor Performance Through Des-graphene Integrationmentioning

confidence: 99%

Synergistic Applications of Graphene-Based Materials and Deep Eutectic Solvents in Sustainable Sensing: A Comprehensive Review

Svigelj,

Toniolo,

Bertoni

et al. 2024

Sensors

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The recently explored synergistic combination of graphene-based materials and deep eutectic solvents (DESs) is opening novel and effective avenues for developing sensing devices with optimized features. In more detail, remarkable potential in terms of simplicity, sustainability, and cost-effectiveness of this combination have been demonstrated for sensors, resulting in the creation of hybrid devices with enhanced signal-to-noise ratios, linearities, and selectivity. Therefore, this review aims to provide a comprehensive overview of the currently available scientific literature discussing investigations and applications of sensors that integrate graphene-based materials and deep eutectic solvents, with an outlook for the most promising developments of this approach.

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Deep eutectic solvent engineered GO/ZrO₂ nanofiller for mixed matrix membranes: An efficient hydrogen gas separation

Chavda,

Patel,

Patel

et al. 2024

J of Applied Polymer Sci

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This study explores fabrication and characterization of mixed matrix membranes (MMMs) for gas separation, employing a cost‐effective solution casting method. Polycarbonate (PC) and polystyrene (PS) blends are combined with graphene oxide (GO) and zirconium dioxide (ZrO2) nanofillers, with and without a deep eutectic solvent (DES) obtained through hydrogen bond exchange. Various MMMs compositions (2–20 wt%) are systematically examined using diverse characterization techniques, including differential scanning calorimetry, thermogravimetric analysis, Fourier transform infrared spectroscopy, scanning electron microscopy, porosity determination, and water contact angle analysis. The MMMs exhibit enhanced gas permeability and selectivity, surpassing conventional membrane materials. Notably, H2 gas permeability reaches outstanding levels, with the composition PC/PS‐DES‐GO/ZrO2 at 20 wt% (PBC20‐IV) demonstrating the highest value of 86.32 Barrer. This superior performance is attributed to the unique properties of ZrO2, increased sorption capacity of GO, and enhanced thermal stability due to DES. Permeability data for CO2, N2, O2, and CH4 also show significant values, aligning with the observed trends in H2 permeability. Robeson's plot for the H2/CO2 gas pair surpasses the 2008 upper bound, placing the MMMs in a novel category for gas separation membranes. The incorporation of DES‐modified nanofiller blend composites presents a promising strategy for the potential production of pure hydrogen.

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GO/ionic surfactant inspired photophysical modulation of rhodamine B in Reline with or without additives

Cited by 8 publications

References 83 publications

Deep Eutectic Solvent/Surfactant-Engineered GO@TiO₂ Advanced Material for Sustained and Ultrafast Adsorption of Hazardous Dye from Contaminated Aqueous Environment

Deep Eutectic Solvent/Surfactant-Engineered GO@TiO₂ Advanced Material for Sustained and Ultrafast Adsorption of Hazardous Dye from Contaminated Aqueous Environment

Synergistic Applications of Graphene-Based Materials and Deep Eutectic Solvents in Sustainable Sensing: A Comprehensive Review

Deep eutectic solvent engineered GO/ZrO₂ nanofiller for mixed matrix membranes: An efficient hydrogen gas separation

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GO/ionic surfactant inspired photophysical modulation of rhodamine B in Reline with or without additives

Cited by 8 publications

References 83 publications

Deep Eutectic Solvent/Surfactant-Engineered GO@TiO2 Advanced Material for Sustained and Ultrafast Adsorption of Hazardous Dye from Contaminated Aqueous Environment

Deep Eutectic Solvent/Surfactant-Engineered GO@TiO2 Advanced Material for Sustained and Ultrafast Adsorption of Hazardous Dye from Contaminated Aqueous Environment

Synergistic Applications of Graphene-Based Materials and Deep Eutectic Solvents in Sustainable Sensing: A Comprehensive Review

Deep eutectic solvent engineered GO/ZrO2 nanofiller for mixed matrix membranes: An efficient hydrogen gas separation

Contact Info

Product

Resources

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Deep Eutectic Solvent/Surfactant-Engineered GO@TiO₂ Advanced Material for Sustained and Ultrafast Adsorption of Hazardous Dye from Contaminated Aqueous Environment

Deep Eutectic Solvent/Surfactant-Engineered GO@TiO₂ Advanced Material for Sustained and Ultrafast Adsorption of Hazardous Dye from Contaminated Aqueous Environment

Deep eutectic solvent engineered GO/ZrO₂ nanofiller for mixed matrix membranes: An efficient hydrogen gas separation