“…Figures 3 a, b and 4 a, b show the results. The deviations and correlations between the figures are indicated by the linear fit (Vinila et al 2014 ; Suryavanshi et al 2018b ). Fig.…”
In this study, we are reporting biogenic synthesis of silver nanoparticles and hydrothermal synthesis of zinc oxide nanoparticles. Using convenient mechanical milling methods, nanocomposites with superior photocatalytic and catalytic properties are synthesized. Herein, we have adopted a green, eco-friendly, and economical route for the synthesis of Ag nanoparticles using Zingiber officinalae rhizome extract in an aqueous solution. The synthesized materials were characterized using UV–Vis spectroscopy, XRD, SEM & FE-SEM, FT-IR, Raman, and a particle size analyzer with zeta potential analysis. The photocatalytic activities of Ag, ZnO and their composites were studied by observing the degradation of methylene blue and crystal violet dyes under natural sunlight. Then the catalytic efficacies of synthesized nanoparticles for various organic transformation reactions were studied. Ag–ZnO nanocomposites were predicted to have improved photocatalytic activity and organic transformation reactions, allowing them to be used in environmental remediation applications.
“…Figures 3 a, b and 4 a, b show the results. The deviations and correlations between the figures are indicated by the linear fit (Vinila et al 2014 ; Suryavanshi et al 2018b ). Fig.…”
In this study, we are reporting biogenic synthesis of silver nanoparticles and hydrothermal synthesis of zinc oxide nanoparticles. Using convenient mechanical milling methods, nanocomposites with superior photocatalytic and catalytic properties are synthesized. Herein, we have adopted a green, eco-friendly, and economical route for the synthesis of Ag nanoparticles using Zingiber officinalae rhizome extract in an aqueous solution. The synthesized materials were characterized using UV–Vis spectroscopy, XRD, SEM & FE-SEM, FT-IR, Raman, and a particle size analyzer with zeta potential analysis. The photocatalytic activities of Ag, ZnO and their composites were studied by observing the degradation of methylene blue and crystal violet dyes under natural sunlight. Then the catalytic efficacies of synthesized nanoparticles for various organic transformation reactions were studied. Ag–ZnO nanocomposites were predicted to have improved photocatalytic activity and organic transformation reactions, allowing them to be used in environmental remediation applications.
“…232 Suryavanshi et al used α-Fe 2 O 3 to degrade benzoic acid and methyl blue under solar radiation in the process of photoelectric catalysis, reaching 56.6% and 90.7% removal rates after 120 and 320 min, respectively. 233 Five cycles of experiments showed that the α-Fe 2 O 3 thin film was stable against corrosion and could be reused in photoelectric catalysis (Figure 11c). 217 The above materials are confirmed to be suitable for photoelectric catalysis in wastewater treatment.…”
Section: Self-powered Electrochemical Systems For Wastewater Treatmentmentioning
The ability to meet higher effluent
quality requirements and the
reduction of energy consumption are the biggest challenges in wastewater
treatment worldwide. A large proportion of the energy generated during
wastewater treatment processes is neglected and lost in traditional
wastewater treatment plants. As a type of energy harvesting system,
triboelectric nanogenerators (TENGs) can extensively harvest the microscale
energies generated from wastewater treatment procedures and auxiliary
devices. This harvested energy can be utilized to improve the removal
efficiency of pollutants through photo/electric catalysis, which has
considerable potential application value in wastewater treatment plants.
This paper gives an overall review of the generated potential energies
(e.g., water wave energy, wind energy, and acoustic energy) that can
be harvested at various stages of the wastewater treatment process
and introduces the application of TENG devices for the collection
of these neglected energies during wastewater treatment. Furthermore,
the mechanisms and catalytic performances of TENGs coupled with photo/electric
catalysis (e.g., electrocatalysis, photoelectric catalysis) are discussed
to realize higher pollutant removal efficiencies and lower energy
consumption. Then, a thorough, detailed investigation of TENG devices,
electrode materials, and their coupled applications is summarized.
Finally, the intimate coupling of self-powered photoelectric catalysis
and biodegradation is proposed to further improve removal efficiencies
in wastewater treatment. This concept is conducive to improving knowledge
about the underlying mechanisms and extending applications of TENGs
in wastewater treatment to better solve the problems of energy demand
in the future.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
