Management of Environmental Waste and Pollutants: Current Trend and Research Directions

Gupta, Nishesh Kumar; Achary, S. N.

doi:10.1007/978-3-319-58538-3_229-1

Cited by 2 publications

(2 citation statements)

References 140 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Methylene blue is a reference material used in the evaluation of the photocatalytic activity of inorganic materials under UV radiation as described in “ISO 10678:2010Determination of photocatalytic activity of surfaces in an aqueous medium by degradation of methylene blue”, which was last reviewed in 2017 and remains current. For visible-light-driven photocatalysis, methylene blue is also commonly employed to help gauge the photocatalytic performance of photocatalysts, especially when dye-assisted-sensitization could be achieved. − Sensitizing semiconductor/metal nanoparticles with dyes to harvest visible photons represents an excellent way to enhance the photocatalytic activity of a photocatalyst. In water, methylene blue exhibits a strong absorption peak at 664 nm (“red light”) and therefore may be employed as a sensitizer under solar radiation or visible light.…”

Section: Resultsmentioning

confidence: 99%

Galvanic Replacement-Enabled Synthesis of In(OH)₃/Ag/C Nanocomposite as an Effective Photocatalyst for Ultraviolet C Degradation of Methylene Blue

et al. 2020

View full text Add to dashboard Cite

Sub-10 nm indium metal nanoparticles (In NPs) stabilized on conductive carbon were reacted with silver nitrate in dark conditions in water at room temperature in a galvanic replacement manner to produce an indium hydroxide/silver/ carbon nanocomposite (In(OH) 3 /Ag/C). The chosen carbon imparted colloidal stability, high surface area, and water dispersibility suitable for photodegradation of harmful dyes in water. The size and shape of indium hydroxide and silver nanoparticles produced were found to be 6.6 ± 0.9 nm, similar to that of the In NPs that were started with. The nanocomposite was characterized by transmission electron microscopy, energy dispersive X-ray spectroscopy, powder X-ray diffraction, and thermogravimetric analysis. The galvanic reaction between In NPs and silver nitrate was tracked with UV−vis spectroscopy in a control experiment without a carbon substrate to confirm that the reaction was indeed thermodynamically spontaneous as indicated by the positive electromotive force (EMF) of +1.14 V calculated for In/Ag + redox couple. The photocatalytic performance of the nanocomposite was evaluated to be approximately 90% under UVC radiation when 10 ppm of methylene blue and 13 wt % of indium hydroxide/silver loading on carbon were used.

show abstract

Section: Resultsmentioning

confidence: 99%

Galvanic Replacement-Enabled Synthesis of In(OH)₃/Ag/C Nanocomposite as an Effective Photocatalyst for Ultraviolet C Degradation of Methylene Blue

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Demand for AC has been steadily rising ever since Raphael von Ostrejko, known as the "father of activated carbon," got it for the first time in 1900 [7]. Market for AC is anticipated to develop at a compound yearly growth rate of 6.31% from 2019 to 2024 [8].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Physical Properties of Various Biomass Materials for the Production of Activated Carbon

Saka

San-Pedro

Abubakar

et al. 2023

JCE

View full text Add to dashboard Cite

This study aims to produce activated carbon (AC) from different biomass sources using chemical activation; characterize the AC using Fourier Transform Infrared (FTIR) Spectroscopy, Scanning Electron Microscopy (SEM), proximate and ultimate analysis; and compare the results from the AC produced. The biomass blends of rice husk & groundnut shell (RH-GS), cocoa nut shell & saw dust (CS-SD) and sugar cane bagasse & banana peel (SB-BP) were used for the preparation of AC. The samples were first characterized using proximate and ultimate analysis, SEM, and FTIR spectroscopy. The results of the BG-SD sample characterization showed that the blend produced the best results in terms of absorptive capacity. It is suggested that surface area difficulties with the ACs be investigated in order to improve their porosity and adsorption capacities.

show abstract

Management of Environmental Waste and Pollutants: Current Trend and Research Directions

Cited by 2 publications

References 140 publications

Galvanic Replacement-Enabled Synthesis of In(OH)₃/Ag/C Nanocomposite as an Effective Photocatalyst for Ultraviolet C Degradation of Methylene Blue

Galvanic Replacement-Enabled Synthesis of In(OH)₃/Ag/C Nanocomposite as an Effective Photocatalyst for Ultraviolet C Degradation of Methylene Blue

Evaluation of the Physical Properties of Various Biomass Materials for the Production of Activated Carbon

Contact Info

Product

Resources

About

Management of Environmental Waste and Pollutants: Current Trend and Research Directions

Cited by 2 publications

References 140 publications

Galvanic Replacement-Enabled Synthesis of In(OH)3/Ag/C Nanocomposite as an Effective Photocatalyst for Ultraviolet C Degradation of Methylene Blue

Galvanic Replacement-Enabled Synthesis of In(OH)3/Ag/C Nanocomposite as an Effective Photocatalyst for Ultraviolet C Degradation of Methylene Blue

Evaluation of the Physical Properties of Various Biomass Materials for the Production of Activated Carbon

Contact Info

Product

Resources

About

Galvanic Replacement-Enabled Synthesis of In(OH)₃/Ag/C Nanocomposite as an Effective Photocatalyst for Ultraviolet C Degradation of Methylene Blue

Galvanic Replacement-Enabled Synthesis of In(OH)₃/Ag/C Nanocomposite as an Effective Photocatalyst for Ultraviolet C Degradation of Methylene Blue