Study on the Phosphate Compound Adsorption onto MgO-KOH/Biochar Adsorbent as Binding Agent in Diffusive Gradient in Thin Film (DGT) Technique for Bioavailable Phosphate Detection DOI Creative Commons
Indah Permatasari, Asep Saefumillah

BULLETIN OF CHEMICAL REACTION ENGINEERING AND CATALYSIS, Journal Year: 2024, Volume and Issue: 19(3), P. 521 - 538

Published: Oct. 16, 2024

Phosphate compounds, particularly bioavailable forms like PO₄³⁻, are critical contributors to eutrophication. In this study, MgO-KOH/biochar was used as a binding agent in the Diffusive Gradient Thin Films (DGT) technique enhance phosphate detection. The adsorbent synthesized from biochar derived palm oil waste, activated with KOH increase surface area, and combined MgO for enhanced adsorption efficiency. process followed pseudo-second-order kinetic model, indicating that chemical interactions dominated mechanism. Under different pH levels concentrations, material showed good selectivity orthophosphate, achieving an capacity of approximately 100 mg/g. Characterization via FTIR, XRD, SAA confirmed successful synthesis its structural properties, which contributed performance. Additionally, DGT device demonstrated better efficiency adsorbing PO₄³⁻ compared conventional ferrihydrite-based systems, positioning it highly effective tool monitoring phosphates aquatic environments. Copyright © 2024 by Authors, Published BCREC Publishing Group. This is open access article under CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

Language: Английский

Cotton-derived biochar fibers modified by doping Al2O3 and MgSO4 for application to hydrogen storage DOI Creative Commons
Sumrit Mopoung,

Wanvilai Singse

International Journal of Renewable Energy Development, Journal Year: 2025, Volume and Issue: 14(3), P. 518 - 527

Published: April 6, 2025

Biochar fiber and activated biochar fibers from cotton were prepared by carbonization at 400-700°C activation with 5 wt.% Al2O3 MgSO4, respectively. The final products characterized BET, FTIR, XRD, SEM-EDS. hydrogen storage of the 1.5 bar pressure room temperature was studied. objective this research to study effects or MgSO4 on doping Al Mg compounds low temperature. results showed that surface areas, micropore volumes, average pore sizes developed well increasing temperatures 400°C 700°C. In addition, functional groups such as OH, C=O, COOH C-O-C also more Furthermore, confirmed MgO accumulated composites. uptake capacity due spillover mechanism increased 700°C during preparation fibers. fell within range 0.32-0.44 wt.%, 0.45-0.52 0.59-0.63 for fiber, Mg-activated fibers, Al-activated This is because molecules bonded physisorption. Therefore, desorbs even It concluded metal made MgSO2 are candidate adsorbers under fast kinetics (within 30 min), quite high sorption selectivity/capacity (up 0.63 wt.%), stability/reversibility (at 80°C).

Language: Английский

Citations

0
Better Waste Utilization: Mg-Modified Biochar from Wetland Plant Waste for Phosphorus Removal and Carbon Sequestration DOI

Tingting Wang,

Xinxi Fu,

Honghai Wan

et al.

Published: Jan. 1, 2024

Language: Английский

Citations

0
Better waste utilization: Mg-modified biochar from wetland plant waste for phosphorus removal and carbon sequestration DOI

Tingting Wang,

Xinxi Fu, Yonghua Chen

et al.

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: unknown, P. 114264 - 114264

Published: Sept. 1, 2024

Language: Английский

Citations

0
Study on the Phosphate Compound Adsorption onto MgO-KOH/Biochar Adsorbent as Binding Agent in Diffusive Gradient in Thin Film (DGT) Technique for Bioavailable Phosphate Detection DOI Creative Commons
Indah Permatasari, Asep Saefumillah

BULLETIN OF CHEMICAL REACTION ENGINEERING AND CATALYSIS, Journal Year: 2024, Volume and Issue: 19(3), P. 521 - 538

Published: Oct. 16, 2024

Phosphate compounds, particularly bioavailable forms like PO₄³⁻, are critical contributors to eutrophication. In this study, MgO-KOH/biochar was used as a binding agent in the Diffusive Gradient Thin Films (DGT) technique enhance phosphate detection. The adsorbent synthesized from biochar derived palm oil waste, activated with KOH increase surface area, and combined MgO for enhanced adsorption efficiency. process followed pseudo-second-order kinetic model, indicating that chemical interactions dominated mechanism. Under different pH levels concentrations, material showed good selectivity orthophosphate, achieving an capacity of approximately 100 mg/g. Characterization via FTIR, XRD, SAA confirmed successful synthesis its structural properties, which contributed performance. Additionally, DGT device demonstrated better efficiency adsorbing PO₄³⁻ compared conventional ferrihydrite-based systems, positioning it highly effective tool monitoring phosphates aquatic environments. Copyright © 2024 by Authors, Published BCREC Publishing Group. This is open access article under CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

Language: Английский

Citations

0