Paraquat dichloride adsorption from aqueous solution using Carbonized Bambara Groundnut (&lt;I&gt;Vigna subterranean&lt;/I&gt;) Shells

Muhammad, Ayuba Abdullahi; Aondofa, Nyijime Thomas

doi:10.4314/bajopas.v12i1.28s

Cited by 5 publications

(8 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The results showed that the adsorbent exhibited good adsorptive properties for removing anionic dyes from aqueous solution owing to its low moisture content, high pore volume, and bulk density. Ayuba and Thomas (2021) reported similar results when they used carbonized Bambara groundnut (Vigra subterranean) shells to remove Paraquat dichloride from aqueous solution. Figure 2 shows the graph of the point of zero charge (PZC) for UTG adsorbent.…”

Section: Adsorbent Characterizationmentioning

confidence: 71%

Study on Adsorption of Alizarin Red S and Eriochrome Black T Dyes by Untreated Typha Grass as a Low Cost Adsorbent

Ayuba

Sani

2022

USci

View full text Add to dashboard Cite

The purpose of this investigation was to study the adsorptive potential of untreated typha grass (UTG) using a batch system under control conditions to decolorize Alizarin Red S (ARS) and Eriochrome Black T (EBT) anionic toxic dyes from synthetic aqueous solution. In this regard, the impact of various experimental parameters namely, contact time, adsorbent dose, initial dye concentration, pH, and temperature were assessed and optimized. The adsorbent was characterized using Fourier transformed infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), and point of zero charge (PZC) analysis. The maximum adsorption rates of ARS and EBT onto UTG were determined to be 49.92 mg/g and 47.43 mg/g, respectively, at equilibrium. In comparison to previous models evaluated, removal of both ARS and EBT by the UTG demonstrated that the data had a strong fit with pseudo-second-order kinetic and Freundlich adsorption isotherms. The contact time for both dyes was optimised at 15 minutes, while the pH for ARS and EBT were attained at 8 and 2 respectively. However, based on the established results of various parameters in this study, the adsorptive removal of ARS and EBT by UTG was a favourable process. The Van't Hoff plot was used to calculate the thermodynamic quantities of the adsorption process, including ΔG, ΔH and ΔS. The outcomes showed that the process was both spontaneous and thermodynamically possible. From the parameters tested, EBT was found to be better adsorbed onto UTG than ARS. Even though both dyes are anionic in nature, but EBT has additional diazo and nitro functional groups than the hydroxyl and sulphate functional groups present in ARS. This might be the reason for the better adsorption of EBT onto UTG than ARS. Results from this investigation supported the efficiency of UTG as a low-cost and environmentally friendly solution for the adsorption of ARS and EBT from contaminated wastewater.

show abstract

Section: Adsorbent Characterizationmentioning

confidence: 71%

Study on Adsorption of Alizarin Red S and Eriochrome Black T Dyes by Untreated Typha Grass as a Low Cost Adsorbent

Ayuba

Sani

2022

USci

View full text Add to dashboard Cite

show abstract

“…Pore (Void) Volume Determination. To determine the pore volume of the adsorbents, the method reported by [20] was adopted. 2.0 g of the samples (RWL, CWL and AWL) was immersed in water and boiled for 15 min.…”

Section: Sample Collection and Adsorbent Preparationmentioning

confidence: 99%

“…where the constant kint (mg/min.) is the intraparticle diffusion constant ratio, and C is the boundary layer thickness [20].…”

Section: The Kinetic Studiesmentioning

confidence: 99%

See 1 more Smart Citation

Kinetic and Isotherm Studies of Methyl Violet Adsorption onto Carbonized Waterlily (Nymphaea lotus) Leaves Powder

Ayuba

Abdulmumini

Mohammed

et al. 2023

PoS

View full text Add to dashboard Cite

In this study, the adsorption of methyl violet from an aqueous solution using carbonised water lily (CWL) leaves powder as a low-cost, efficient and eco-friendly adsorbent was investigated using a batch system under controlled conditions. The adsorbent's moisture, organic matter, ash, bulk density, pore volume, and pH were determined. The adsorbents were characterised by scanning electron microscopy (SEM) and Fourier Transform Infrared (FT-IR) techniques which confirm the adsorption of the methyl violet onto the CWL adsorbents. The effect of adsorption parameters such as contact time, dosage, initial concentration, pH and temperature were studied for optimisation. It was confirmed that contact time, dosage, concentration, pH and temperature positively affected adsorption. The kinetic data were best described by pseudo-second order under all experimental temperatures. The adsorption isotherms were estimated and established to fit nicely into the D-R model compared to other models generated and tested. Thermodynamic studies of the sorption process indicate that the process was feasible, spontaneous, and exothermic and decrease in the randomness of the adsorption process during the transfer of molecules between the adsorbent and adsorbates with entropy (∆S) of 23.77 J/mol.K. due to negative values of Gibb's free energy observed. This study confirmed that CWL could be employed as a low-cost, eco-friendly adsorbent for removing toxic dyes such as methyl violet from an aqueous solution.

show abstract

“…15 Additionally, it serves as a low-cost source of high-quality protein. Leveraging Bambara shell as a natural, costeffective, safe, and environmentally friendly alternative, it offers promising potential for conventional remediation systems 16 Lignin, extracted from agricultural residues, exhibits notable adsorption capacity and a strong affinity for removing heavy metal. 17,18 Consequently, 16 investigated carbonized Bambara groundnut shell as an adsorbent for removal of paraquat dichloride from aqueous solution.…”

Section: Introductionmentioning

confidence: 99%

Kinetics of the bioremoval of selected heavy metal ions from wastewater by the application of modified Nigerian Bambara groundnuts shells

O. E

2024

IPCSE

View full text Add to dashboard Cite

Nigerian Bambara Groundnut Shells (BGS) were modified to obtain Raw Bambara Groundnut Shell (RBGS), Carbonized Bambara Groundnut Shell (CBGS) and Bambara Groundnut Shell Lignin (BGSL) and used as bio-adsorbents to remove Lead (Pb), Nickel (Ni) and Cadmium (Cd) ions from industrial wastewater. The adsorption study investigated the effects of bio-adsorbent dosage, wastewater pH and contact time. Preliminary analyses which include: an Atomic Adsorption Spectrophotometer (AAS) on the wastewater and Scanning Electron Microscopy (SEM) were carried out on the different modified BGS, while the mechanism of adsorption was described using adsorption kinetic models. AAS analysis revealed that the concentrations of the heavy metals of interest were above WHO permissible limits in wastewater. SEM analysis revealed that the microspores of the bio-adsorbents were covered after the adsorption process. After the adsorption process, 85 – 91% Pb and 80 – 85% Ni and 92 - 98% Cd were removed by the different bio-adsorbents at optimum conditions of adsorption capacity which occurred at 0.8g dosage, pH of 7 and 120 min contact time. Generally, equilibrium occurred within 90 minutes. The mechanism of Pb, Ni and Cd ions adsorption onto RBGS, CBGS and BGSL bio-adsorbents can be described with diffusion and chemisorption processes. Pseudo-second-order kinetics fitted the adsorption process, implying that it is the rate-controlling step. This study found that the modified Bambara groundnut shell bio-adsorbents can be used as an alternative to conventional adsorbents used to treat industrial wastewater effluent

show abstract

Paraquat dichloride adsorption from aqueous solution using Carbonized Bambara Groundnut (<I>Vigna subterranean</I>) Shells

Cited by 5 publications

References 10 publications

Study on Adsorption of Alizarin Red S and Eriochrome Black T Dyes by Untreated Typha Grass as a Low Cost Adsorbent

Study on Adsorption of Alizarin Red S and Eriochrome Black T Dyes by Untreated Typha Grass as a Low Cost Adsorbent

Kinetic and Isotherm Studies of Methyl Violet Adsorption onto Carbonized Waterlily (Nymphaea lotus) Leaves Powder

Kinetics of the bioremoval of selected heavy metal ions from wastewater by the application of modified Nigerian Bambara groundnuts shells

Contact Info

Product

Resources

About