Remediation of Methyl Red Dye from Aqueous Solutions by Using Biosorbents Developed from Floral Waste

Abstract

The disposal of biological waste into water bodies is a major global concern as it leads to water pollution resulting in the loss of plenty of revenue in the cleaning of water bodies. Here, in the present research work, sacred flowers were collected, segregated, sun-dried, and powdered. The dried floral powders (marigold and rose) were characterized by field emission scanning electron microscopy (FESEM), electron diffraction spectroscopy (EDS), Fourier transforms infrared spectroscopy (FT-IR), and X-ray diffraction (XRD). The microscopy revealed the irregular spherical shape of the sheet-like structure whose size varies in microns. The EDS revealed the elemental composition which was dominated by mainly carbon and oxygen. The XRD shows the presence of carbon (10-25ɵ) in the amorphous form and the absence of any crystalline phase in the biosorbents. The FT-IR showed peaks that conformed to the presence of functional groups like -OH and a carbonyl group. The dried powders were used as an economical and eco-friendly biosorbent for the removal of methyl red (MR) dye from the aqueous solutions by batch adsorption study. After 60 minutes of contact time, the marigold powder (MGP) and rose petal powder (RPP) showed decolorization of 61.16% and 56.08% for 2 ppm of MR dye. The kinetic revealed that the dye removal reaction does not follow the pseudo-first-order as well as the pseudo-second-order. The utilization of such waste-based biosorbents will minimize solid waste and also will provide an economical biosorbent for the removal of environmental pollutants.

Phytonanofabrication of Copper Oxide from Albizia saman and Its Potential as an Antimicrobial Agent and Remediation of Congo Red Dye from Wastewater

“…When the dye is removed in open conditions in the laboratory, the CuONPs simply act as an adsorbent that adsorbs the dye molecules through various interactions, like Vander Wall forces, electrostatic interaction, etc. [82]. Moreover, the CuONPs have various charged functional groups, which attract or repel the dye molecules and remove the dye from the medium.…”

Maximizing methyl red dye removal efficiency: a targeted parameter approach

“…9 However, attention of the adsorption process for dye removal from wastewater arises from its cost-effectiveness, simplicity, environmental friendliness, versatility and the potential for adsorbent reuse. [10][11][12] Contrarily, the utilization of liquid-liquid (L-L) extraction is typically minimized in extensive wastewater research as a consequence of its inherent high operational costs. This technique involves the separation of metal complexes or compounds into two immiscible liquids, typically an organic solvent and water.…”

Synthesis and characterization of titanium dioxide nanoparticles from Bacillus subtilis MTCC 8322 and its application for the removal of methylene blue and orange G dyes under UV light and visible light

“…Every year there is a huge economic loss for treating these dyes contaminated wastewater ( Wang et al, 2022 ). The currently available technique for dye removal is flocculation, adsorption ( Amari et al, 2023 ; Modi et al, 2023 ), coagulation ( Wang L et al, 2021 ), precipitation, reverse osmosis ( Aragaw and Bogale, 2021 ; Dutta et al, 2021 ; Moradihamedani, 2022 ), photocatalysis, Fenton ( Merouani et al, 2022 ; Rafaqat et al, 2022 ; Deng and Brillas, 2023 ), ozonation ( Pourmoheb Hosseini and Chaibakhsh, 2022 ; Qazi et al, 2022 ), membrane filtration ( Li et al, 2015 ), nanofiltration ( Khan et al, 2022 ), ultrafiltration ( Rai et al, 2022 ), etc. Most of these techniques are less effective while the last two methods are expensive making the dye removal process very expensive ( Mohapatra and Kirpalani, 2019 ; Al-Asheh and Aidan, 2020 ).…”