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

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

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