Liquid-phase adsorption of Congo red dye using modified spear grass (Imperata cylindrica) root as adsorbent

Bello, Olugbenga Solomon; Akinwale, Folorunso Titus; Agboola, Oluwatobi Samuel; Ibrahim, Asiata Omotayo; Adesina, Oreoluwa Ololade

doi:10.1007/s13399-022-03078-9

Cited by 4 publications

(2 citation statements)

References 52 publications

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“…Plotting the graph between y=ln (qe) and x=ϵ 2 shows that the slope = -K and the intercept = ln (qm) [62]. Table S11 and Figure 19 show the experimental outcomes and graph of this model.…”

Section: 5% 89% 15%mentioning

confidence: 99%

Green Synthesis of Nickel Oxide Nano particles from Lawasonia inermis leaf extract for promising Methyl red Uptake and Efficient Iodine Adsorption

Khalid,

Raza,

Areej

et al. 2024

Preprint

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Water pollution is the threat to the survival of life on mother earth but due to industrialization clean reservoirs of water deteriorated day by day which demands eco-friendly, cheap and highly efficient methods to counter this issue. So due to this pressing ultimatum nickel oxide (NiO) nanoparticles are synthesized with Lawasonia inermis as a reducing and capping agent. Green-synthesized NiO-NPs are analysed by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) and energy dispersive x-ray (EDX). In this study, synthesized NiO-NPs are used to remove methyl red (MR) and radioactive iodine from polluted water. The maximum adsorption efficiency of methyl red is 89% at contact time 120 minutes, pH 5.0, temperature 10 0C and adsorbent dose of 1 g. The percentage adsorption by weight of NiO nanoparticles for radioactive iodine is 225%. The adsorption capacity was calculated 4.58 mgg− 1 for methyl red at optimum conditions. Langmuir, Freundlich, Temkin, and Dubinin-Radushkevich adsorption isotherms are studied, and the experimental data suggests that Langmuir isotherms are best fit with R2 = 0.996. According to a kinetic analysis, the pseudo 2ND order kinetic model best fits the adsorption mechanism having R2 = 0.993 A thermodynamic study shows the current process is spontaneous and endothermic, where Gibbs free energy (ΔG), enthalpy change (ΔH) and entropy change (ΔS) were − 5.9461 kjmol− 1, 33.04 kjmol− 1 and 0.00338 kjmol− 1K− 1, respectively. NiO NPs contribute to the degradation of methyl red with minimal resource utilization with promising efficiency. Additionally, in the future, it may be used for the degradation of other environmental contaminants. Graphical abstract of synthesis and application of NiO-NPs

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“…Plotting the graph between y=ln (qe) and x=ϵ 2 shows that the slope = -K and the intercept = ln (qm) [62]. Table S11 and Figure 19 show the experimental outcomes and graph of this model.…”

Section: 5% 89% 15%mentioning

confidence: 99%

Green Synthesis of Nickel Oxide Nano particles from Lawasonia inermis leaf extract for promising Methyl red Uptake and Efficient Iodine Adsorption

Khalid,

Raza,

Areej

et al. 2024

Preprint

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show abstract

“…Comparison of adsorption performance in this study with previous Congo red dye adsorbent in works in the literature. References [63][64][65][66][67][68][69][70][71][72] have been explained in the Supplementary Materials. Conflicts of Interest: Authors YunQiang Chen and Lei Fan were employed by the company Suntar Membrane Technology (Xiamen) Co., Ltd., the remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.…”

Section: Supplementary Materialsmentioning

confidence: 99%

Construction of Oxygen Vacancies of Zr-Doped CeO2 with Enhanced Dye Adsorption Performance

Luo,

Fan,

Chen

et al. 2023

Crystals

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Congo red (CR), a highly pigmented anionic dye, is highly toxic and resistant to degradation. The discharge of CR wastewater into the natural environment can lead to ecological destruction and harm to human health. CeO2 as an adsorbent possesses the advantages of excellent acid and alkali resistance, biocompatibility, stable physical and chemical properties, and nontoxic by-products. The impact of Zr doping on the adsorption performance of nano-CeO2 was investigated. XPS and Raman characterisation revealed that Zr doping effectively enhanced the oxygen vacancy ratio at the active sites for CR adsorption on the surface of nano-CeO2. When the doping amount of Zr was 3%, the nanoparticles with the best adsorption properties were obtained, and the adsorption amount of CR at room temperature was as high as 3642.05 mg/g, which was approximately three times the adsorption amount of undoped CeO2. This excellent adsorption property shows good prospects for the removal of anionic dyes from wastewater.

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Removal of 2,4-Dichlorophenol from aqueous medium using activated carbon prepared from cocoa pod husks

Oluwapamilerin

AKINOLA

Bello

et al. 2023

Chemical Data Collections

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Liquid-phase adsorption of Congo red dye using modified spear grass (Imperata cylindrica) root as adsorbent

Cited by 4 publications

References 52 publications

Green Synthesis of Nickel Oxide Nano particles from Lawasonia inermis leaf extract for promising Methyl red Uptake and Efficient Iodine Adsorption

Green Synthesis of Nickel Oxide Nano particles from Lawasonia inermis leaf extract for promising Methyl red Uptake and Efficient Iodine Adsorption

Construction of Oxygen Vacancies of Zr-Doped CeO2 with Enhanced Dye Adsorption Performance

Removal of 2,4-Dichlorophenol from aqueous medium using activated carbon prepared from cocoa pod husks

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