Novel double layer film composed of reduced graphene oxide and Rose Bengal dye: design, fabrication and evaluation as an efficient chemosensor for silver(<scp>i</scp>) detection

Sarafbidabad, Mohsen; Parsaee, Zohreh; Mohammadi, Zahra; Karachi, Nima; Razavi, Razieh

doi:10.1039/c8nj01796d

Cited by 16 publications

(2 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The high-resolution O 1s X-ray photoelectron spectra (XPS) reveal a Si─O bond near 531.9 eV and an N─C═O bond near 530.5 eV. [27,28] This indicates a shift toward a lower binding energy, which is attributed to the electron-withdrawing effect facilitated by hydrogen bonding with the amino group of ODA (Figure 1b(i)), in accordance with previous studies. [29] This conclusion is corroborated by the corresponding highresolution Si 2p spectra.…”

Section: Structural Characterization Of Pns-coated Fabricssupporting

confidence: 89%

Antimicrobial and Antifouling Effects of Petal‐Like Nanostructure by Evaporation‐Induced Self‐Assembly for Personal Protective Equipment

Lee,

Jeong,

Lee

et al. 2023

Small

View full text Add to dashboard Cite

Although the personal protective equipment (PPE) used by healthcare workers (HCWs) effectively blocks hazardous substances and pathogens, it does not fully rule out the possibility of infection, as pathogens surviving on the fabric surface pose a substantial risk of cross‐infection through unintended means. Therefore, PPE materials that exhibit effective biocidal activity while minimizing contamination by viscous body fluids (e.g., blood and saliva) and pathogen‐laden droplets are highly sought. In this study, petal‐like nanostructures (PNSs) are synthesized through the vertical rearrangement of colloidal lamellar bilayers via evaporation‐induced self‐assembly of octadecylamine, silica‐alumina sol, and diverse photosensitizer. The developed method is compatible with various fabrics and imparts visible‐light‐activated antimicrobial and superhydrophobic‐based antifouling activities. PNS‐coated fabrics could provide a high level of protection and effectively block pathogen transmission as exemplified by their ability to roll off viscous body fluids reducing bacterial droplet adhesion and to inactivate various microorganisms. The combination of antifouling and photobiocidal activities results in the complete inactivation of sprayed pathogen‐laden droplets within 30 min. Thus, this study paves the way for effective contagious disease management and the protection of HCWs in general medical environments, inspiring further research on the fabrication of materials that integrate multiple useful functionalities.

show abstract

Section: Structural Characterization Of Pns-coated Fabricssupporting

confidence: 89%

Antimicrobial and Antifouling Effects of Petal‐Like Nanostructure by Evaporation‐Induced Self‐Assembly for Personal Protective Equipment

Lee,

Jeong,

Lee

et al. 2023

Small

View full text Add to dashboard Cite

show abstract

“…The dye-loaded FeWO 4 /PPy NC display some new bands depicting dyes adsorption onto the NC surface. The FTIR spectral signals at 764 and 967 cm À1 , which can be attributed to the bending vibrations of aromatic C H, 26 and C OH, 27 respectively confirm the adsorption of RB onto the NC surface. The band at 1647 cm À1 is ascribed to C═O stretching mode, while the peaks at 1289, 1051, and 1015 cm À1 are attributed to symmetric and asymmetric S═O stretching vibrations of ARS.…”

Section: Adsorption Studies and Photocatalytic Degradation Of Rb And ...mentioning

confidence: 77%

Evaluation of adsorptive and photocatalytic degradation properties ofFeWO₄/polypyrrole nanocomposite for rose bengal and alizarin red S from liquid phase: Modeling of adsorption isotherms and kinetics data

Hussain

Siddiqui

Shirazi

et al. 2022

Env Prog and Sustain Energy

View full text Add to dashboard Cite

The FeWO4/polypyrrole nanocomposite (FeWO4/PPy NC), prepared by oxidative polymerization of pyrrole monomer with FeWO4 NPs, is used for adsorption and photocatalytic degradation of rose bengal and alizarin red S. The characterization of the nanocomposite (NC) is performed by X‐ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, energy dispersive X‐ray spectroscopy, and transmission electron microscopy. The performance of FeWO4/PPy NC is appraised under varying conditions of agitation time/solar irradiation time, initial dyes concentration, adsorbent/photocatalyst dose, and initial solution pH. The Langmuir isotherm and pseudo‐second‐order kinetic models best express the equilibrium data. The FeWO4/PPy NC exhibits a maximum saturation capacity of 202.63 mg/g for rose bengal (RB) and 142.80 mg/g for alizarin red S (ARS). The adsorption of both dyes follows liquid film and intraparticle diffusion. Thermodynamic studies demonstrate feasibility, spontaneity, and exothermic essence of the removal process. The NC shows remarkable visible‐light photocatalytic activity at 100–120 min irradiation time, 40 mg/L dyes solution concentration, 0.5 g/L of photocatalyst, and pH 6. Photodegradation reaction obeys first‐order kinetics. The mechanism of adsorption of RB and ARS is governed by electrostatic attraction, hydrogen bonding, van der Waals, and π–π interactions. A good regeneration capacity up to four sorption–desorption cycles, high saturation capacity, and remarkable photodegradation efficiency depicts that FeWO4/PPy NC can be used efficiently for decolorization of RB and ARS in aqueous medium.

show abstract

Potential and Performances of C70, Si70, CNT(5, 0) and SiNT(5, 0) as ORR and OER Catalysts

Ali,

Zaidi,

Batoo

et al. 2023

Silicon

View full text Add to dashboard Cite

Novel double layer film composed of reduced graphene oxide and Rose Bengal dye: design, fabrication and evaluation as an efficient chemosensor for silver(i) detection

Abstract: A novel silver-chemosensor fabricated with reduced graphene oxide and Rose Bengal (RB) based on the interaction of Ag+ and RB.

Cited by 16 publications

References 47 publications

Antimicrobial and Antifouling Effects of Petal‐Like Nanostructure by Evaporation‐Induced Self‐Assembly for Personal Protective Equipment

Antimicrobial and Antifouling Effects of Petal‐Like Nanostructure by Evaporation‐Induced Self‐Assembly for Personal Protective Equipment

Evaluation of adsorptive and photocatalytic degradation properties ofFeWO₄/polypyrrole nanocomposite for rose bengal and alizarin red S from liquid phase: Modeling of adsorption isotherms and kinetics data

Potential and Performances of C70, Si70, CNT(5, 0) and SiNT(5, 0) as ORR and OER Catalysts

Contact Info

Product

Resources

About

Novel double layer film composed of reduced graphene oxide and Rose Bengal dye: design, fabrication and evaluation as an efficient chemosensor for silver(i) detection

Abstract: A novel silver-chemosensor fabricated with reduced graphene oxide and Rose Bengal (RB) based on the interaction of Ag+ and RB.

Cited by 16 publications

References 47 publications

Antimicrobial and Antifouling Effects of Petal‐Like Nanostructure by Evaporation‐Induced Self‐Assembly for Personal Protective Equipment

Antimicrobial and Antifouling Effects of Petal‐Like Nanostructure by Evaporation‐Induced Self‐Assembly for Personal Protective Equipment

Evaluation of adsorptive and photocatalytic degradation properties ofFeWO4/polypyrrole nanocomposite for rose bengal and alizarin red S from liquid phase: Modeling of adsorption isotherms and kinetics data

Potential and Performances of C70, Si70, CNT(5, 0) and SiNT(5, 0) as ORR and OER Catalysts

Contact Info

Product

Resources

About

Evaluation of adsorptive and photocatalytic degradation properties ofFeWO₄/polypyrrole nanocomposite for rose bengal and alizarin red S from liquid phase: Modeling of adsorption isotherms and kinetics data