Isolation of aqueous pesticides on surface-functionalized SBA-15: glyphosate kinetics and detailed empirical insights for atrazine

Diagboya, Paul N.; Junck, Johannes; Akpotu, Samson O.; Düring, Rolf-Alexander

doi:10.1039/d3em00425b

Cited by 4 publications

(1 citation statement)

References 64 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The concentration of BPA in water was determined by the malachite green spectrophotometry method. , The method for establishing the standard curve is described in detail in Supporting Information 3 (Figure S1).…”

Section: Methodsmentioning

confidence: 99%

Hydrogen Peroxide-Modified Biochars from Wetland Plants for Bisphenol A Removal in Water

Zhao,

Yang,

et al. 2024

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

In this study, hydrogen peroxide-modified biochars from wetland plants were synthesized and employed for aqueous bisphenol A (BPA) removal, which achieved equilibrium within 300 min. The adsorption trend increased with increasing initial BPA concentration or contact time before reaching adsorption equilibrium. The pseudosecond-order adsorption kinetic model and Langmuir adsorption isotherm model fitted well with the adsorption data. The maximum adsorption capacities of Phragmites australis and Typha orientalis biochar carbonized at 500 °C for 6 h and modified with 5% hydrogen peroxide reached 10.589 and 8.483 mg/g, respectively. The modification of hydrogen peroxide resulted in the highest specific surface area of 7.143 m 2 /g for P. australis and 9.848 m 2 /g for T. orientalis, thereby promoting the adsorption of BPA. Characterization showed that hydrogen peroxide increased micropore and mesopore volumes and micropore and mesopore surface areas of biochars, disrupted the microcrystalline structures, and reduced the regularity of biochars. The regeneration study demonstrated that the hydrogen peroxide-modified biochars exhibited reusability for up to five cycles, with a reduction in the BPA removal efficiency of 10.67% for P. australis biochar and 10.07% for T. orientalis biochar.

show abstract

Section: Methodsmentioning

confidence: 99%

Hydrogen Peroxide-Modified Biochars from Wetland Plants for Bisphenol A Removal in Water

Zhao,

Yang,

et al. 2024

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

show abstract

Kenaf Biochar as an Eco‐Friendly Adsorbent for Removal of Cu(II) and Pb(II): Optimal Temperature, Adsorption Models, and Efficiency Evaluation

Choi,

Lee,

Yoon

et al. 2024

Applied Organom Chemis

View full text Add to dashboard Cite

This study examined the adsorption capacities of biochars derived from kenaf (KF‐BCs) for the removal of heavy metals such as Cu(II) and Pb(II). The thermal decomposition temperature (300–750°C) significantly influenced the morphology and composition of KF‐BCs, enhancing their surface area, pore structure, and alkalinity. Among them, kenaf pyrolyzed at 750°C (KF‐750) was the most effective in removing Cu(II) and Pb(II), as validated by kinetic, equilibrium, and isotherm model analyses. Adsorption kinetics revealed that equilibrium was attained after 24 h, with chemisorption governing the process rate. Equilibrium adsorption conformed to the Langmuir and Freundlich models for Cu(II) and Pb(II), respectively. KF‐750 exhibited midrange adsorption capacities for Cu(II) and Pb(II) (23.47 ± 0.3 mg/g and 50.07 ± 0.9 mg/g, respectively), compared with the literature. The thermodynamic assessment revealed an endothermic process with positive ∆H0, indicating that higher temperatures favor metal adsorption. At low pH, adsorption decreased due to electrostatic repulsion, particularly affecting Cu(II). More than 99.8% of Cu(II) and Pb(II) were removed with a 5.00 g/L KF‐750 dose. The cation effect order on KF‐750 was Ca2+ > Mg2+ > Na+ > K+. Overall, KF‐750 demonstrates promising potential as an adsorbent for the efficient heavy metal removal from aqueous solutions, presenting a viable option for environmental remediation.

show abstract

Adsorptive decolorization of dyes in aqueous solution using magnetic sweet potato (Ipomoea batatas L.) peel waste

Diagboya,

Odagwe,

Oyem

et al. 2024

RSC Sustain.

Self Cite

View full text Add to dashboard Cite

show abstract

Isolation of aqueous pesticides on surface-functionalized SBA-15: glyphosate kinetics and detailed empirical insights for atrazine

Abstract: Removal of atrazine and glyphosate from aqueous medium.

Cited by 4 publications

References 64 publications

Hydrogen Peroxide-Modified Biochars from Wetland Plants for Bisphenol A Removal in Water

Hydrogen Peroxide-Modified Biochars from Wetland Plants for Bisphenol A Removal in Water

Kenaf Biochar as an Eco‐Friendly Adsorbent for Removal of Cu(II) and Pb(II): Optimal Temperature, Adsorption Models, and Efficiency Evaluation

Adsorptive decolorization of dyes in aqueous solution using magnetic sweet potato (Ipomoea batatas L.) peel waste

Contact Info

Product

Resources

About