Activated H2O2 on Ag/SiO2–SrWO4 surface for enhanced dark and visible-light removal of methylene blue and p-nitrophenol

El‐Sheshtawy, Hamdy S.; Ghubish, Z.; Shoueir, Kamel R.; El‐Kemary, Maged

doi:10.1016/j.jallcom.2020.155848

Cited by 46 publications

(21 citation statements)

References 61 publications

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“…It can be mentioned that chitosan has been used intensively for heavy metals removal from aqueous solutions and preferred rather than different nanocomposites in the removal efficiency [122][123][124][125][126]. The presence of amino and hydroxyl anions in chitosan structure might induce electrostatic forces towards the targeted ions, other physical interactions help for adsorption of ions through a porous surface.…”

Section: Chitosan Nanofibersmentioning

confidence: 99%

Chitosan based-nanoparticles and nanocapsules: Overview, physicochemical features, applications of a nanofibrous scaffold, and bioprinting

Shoueir

El-Desouky

Rashad

et al. 2021

International Journal of Biological Macromolecules

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118

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Section: Chitosan Nanofibersmentioning

confidence: 99%

Chitosan based-nanoparticles and nanocapsules: Overview, physicochemical features, applications of a nanofibrous scaffold, and bioprinting

Shoueir

El-Desouky

Rashad

et al. 2021

International Journal of Biological Macromolecules

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118

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“…The green chemistry methods have many differences in morphology and UV-vis absorption in contrast to traditional synthesis [83][84][85][86]. In literature, many materials are validated for adsorption and photocatalytic degradation of toxins [87][88][89][90][91][92][93][94][95][96][97][98]. It was reported that GQDs were synthesized using corn powder as a precursor and green material and the photodegradation against rhodamine B (RhB) by UV radiation was tested.…”

Section: Green Synthesismentioning

confidence: 99%

Outstanding Graphene Quantum Dots from Carbon Source for Biomedical and Corrosion Inhibition Applications: A Review

et al. 2021

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Graphene quantum dots (GQD) is an efficient nanomaterial composed of one or more layers of graphene with unique properties that combine both graphene and carbon dots (CDs). It can be synthesized using carbon-rich materials as precursors, such as graphite, macromolecules polysaccharides, and fullerene. This contribution emphasizes the utilization of GQD-based materials in the fields of sensing, bioimaging, energy storage, and corrosion inhibitors. Inspired by these numerous applications, various synthetic approaches have been developed to design and fabricate GQD, particularly bottom-up and top-down processes. In this context, the prime goal of this review is to emphasize possible eco-friendly and sustainable methodologies that have been successfully employed in the fabrication of GQDs. Furthermore, the fundamental and experimental aspects associated with GQDs such as possible mechanisms, the impact of size, surface alteration, and doping with other elements, together with their technological and industrial applications have been envisaged. Till now, understanding simple photo luminance (PL) operations in GQDs is very critical as well as there are various methods derived from the optical properties of manufactured GQDs can differ. Lack of determining exact size and morphology is highly required without loss of their optical features. Finally, GQDs are promising candidates in the after-mentioned application fields.

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“…As a result, even at extremely low concentrations, impacts on numerous human health diseases such as kidney, brain, liver, reproductive system, central nervous system, and epigenetic modifications might arise. According to the US Environmental Protection Agency, phenolic chemicals are potential poisons, including nitrophenols, chlorophenols, and alkylphenols [3].…”

Section: Introductionmentioning

confidence: 99%

“…Phenolic compounds and nitro-organics are among the most dangerous organic contaminants. Pesticides, herbicides, textiles, pharmaceuticals, and detergents are all raw sources of toxins in water [3,4]. Conventional treatment methods like sedimentation and flocculation, as an example, are insufficient to ensure good water quality [5].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of silver nanoparticles using bio valorization coffee waste extract: photocatalytic flow-rate performance, antibacterial activity, and electrochemical investigation

El-Desouky

Shoueir

El‐Mehasseb

et al. 2022

Biomass Conv. Bioref.

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It is well known that biogenic synthesis, as compared to other processes, has proven to be highly effective in the fabrication of silver nanoparticles (AgNPs). Thus, our current study focused on synthesizing AgNPs using coffee waste extract (CWE). CWE contains many compounds identified by HPLC, which reduce, cap, and stabilize AgNPs in its solution. The as-synthesized AgNPs were produced with a monodispersed small size around 20 nm and exhibited in-plane dipole plasmon resonances of hexagonal nanoplates. AgNPs were characterized by both physical and spectroscopic methods, which confirmed their nanoscale dimensions with a hexagonal shape. The as-prepared AgNPs (12 mg) enabled the photodegradation of phenol compounds (20 mL) with a removal efficiency of ~ 94.6% in a short time in the presence of citric acid. Additionally, the second promising application of AgNPs was the tendency to remove the hazard 2,4 dinitroaniline (2,4 DNA) with a percent more than 97% while using only 7 mg of AgNPs. Moreover, the green synthesized AgNPs are superior in inhibiting bacterial growth and killing most infected microbes such as B. subtilis , P. aeruginosa , S. aureus , and E. coli . The electrochemical characteristics of the AgNPs were evaluated using a three-electrode system. The calculated specific capacitance was 280 F g −1 at 0.56 A g −1 . Furthermore, after 1000 cycles at 2.2 A g −1 , the AgNPs electrode demonstrates an excellent cycling stability behavior with 94.8% capacitance retention. Based on the previous promising results, it can be concluded that CWE is an environmentally benign extract to prepare AgNPs with low cost, saving and easily used for many great domains in photocatalytic, phenol compound removals, and production of functional nanodevices.

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Activated H2O2 on Ag/SiO2–SrWO4 surface for enhanced dark and visible-light removal of methylene blue and p-nitrophenol

Cited by 46 publications

References 61 publications

Chitosan based-nanoparticles and nanocapsules: Overview, physicochemical features, applications of a nanofibrous scaffold, and bioprinting

Chitosan based-nanoparticles and nanocapsules: Overview, physicochemical features, applications of a nanofibrous scaffold, and bioprinting

Outstanding Graphene Quantum Dots from Carbon Source for Biomedical and Corrosion Inhibition Applications: A Review

Synthesis of silver nanoparticles using bio valorization coffee waste extract: photocatalytic flow-rate performance, antibacterial activity, and electrochemical investigation

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