Multifunctional Sites for Enhanced Adsorption of Arsenic Using Sulfydryl-Modified Biochar/MgFe-Layered Double Hydroxides DOI
Long Chen,

Zhechen Liu,

Zichu Hu

et al.

Langmuir, Journal Year: 2025, Volume and Issue: unknown

Published: April 23, 2025

Arsenic contamination in water poses a significant threat to the environment and human health due high toxicity of arsenic. Therefore, development functionalized materials with an enhanced adsorption capacity for arsenic remains key research focus purification. In this study, straw powder was hydrothermally pretreated subsequently pyrolyzed zinc chloride at 700 °C produce hydrothermal biochar tailored pores. The then modified sulfhydryl groups, Sulfhydryl-Modified Biochar/MgFe-Layered Double Hydroxides (SH@HB/MgFe-LDH) composites were synthesized using coprecipitation method. By utilizing HB surface area, composite material specific area 479.3677 m2/g prepared. experimental results indicated that SH@HB/MgFe-LDH exhibited excellent performance across wide pH range, achieving as 388.01 mg/g. process mechanism investigated through kinetics, isotherms, thermodynamic analysis, X-ray photoelectron spectroscopy. Additionally, recycling studies demonstrated maintained stable over three reuse cycles, showing good potential practical applications. Overall, offer effective solution pollution control while promoting high-value utilization agricultural forestry waste.

Language: Английский

Iron Oxide and Hydroxides for the Removal of Heavy Metals from Wastewater DOI

Kedibone Mashale,

Tumelo Monty Mogashane, Portia Madzivha

et al.

IntechOpen eBooks, Journal Year: 2025, Volume and Issue: unknown

Published: April 21, 2025

Due to their remarkable adsorptive qualities, low cost, and wide availability, iron oxides hydroxides have attracted a lot of interest as efficient materials for the removal heavy metals from wastewater. The mechanisms by which iron-based minerals, such ferrihydrite, magnetite, haematite goethite interact with through ion exchange, co-precipitation, adsorption are covered in detail this chapter. In order maximise metal uptake efficiency, importance surface chemistry, particle size mineral crystallinity is emphasised. This study critically examines developments oxide functionalisation modification improve capacity selectivity particular metals, including cadmium, lead arsenic. While there naturally occurring oxides/hydroxides, it possible synthesise them, coupling synthesis modifications, these usually monitored or verified using easily accessible instruments X-Ray Diffraction (XRD), Scanning Electron Microscope (SEM) Fourier Transform Infrared Spectroscopy (FTIR). integration oxides/hydroxides nanotechnology polymers has been beneficial both other pollutants, organic ones, highlights versatility materials. ability be regenerated further use makes them attractive wastewater treatment industry terms environmental beneficiation. chapter, therefore, provides comprehensive analysis hydroxides, highlighting crucial role developing sustainable systems reducing pollution.

Language: Английский

Citations

0
Multifunctional Sites for Enhanced Adsorption of Arsenic Using Sulfydryl-Modified Biochar/MgFe-Layered Double Hydroxides DOI
Long Chen,

Zhechen Liu,

Zichu Hu

et al.

Langmuir, Journal Year: 2025, Volume and Issue: unknown

Published: April 23, 2025

Arsenic contamination in water poses a significant threat to the environment and human health due high toxicity of arsenic. Therefore, development functionalized materials with an enhanced adsorption capacity for arsenic remains key research focus purification. In this study, straw powder was hydrothermally pretreated subsequently pyrolyzed zinc chloride at 700 °C produce hydrothermal biochar tailored pores. The then modified sulfhydryl groups, Sulfhydryl-Modified Biochar/MgFe-Layered Double Hydroxides (SH@HB/MgFe-LDH) composites were synthesized using coprecipitation method. By utilizing HB surface area, composite material specific area 479.3677 m2/g prepared. experimental results indicated that SH@HB/MgFe-LDH exhibited excellent performance across wide pH range, achieving as 388.01 mg/g. process mechanism investigated through kinetics, isotherms, thermodynamic analysis, X-ray photoelectron spectroscopy. Additionally, recycling studies demonstrated maintained stable over three reuse cycles, showing good potential practical applications. Overall, offer effective solution pollution control while promoting high-value utilization agricultural forestry waste.

Language: Английский

Citations

0