Functionalization of biochar using SDS/SAP nanomicelles enhanced its immobilization capacity for dyes and heavy metals in water

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Feb. 28, 2025

To enhance the adsorption capacity of biochar (BC), herein a novel multifunction modified (SDMBC) was prepared by directly crosslinking nanomicelle sodium dodecyl sulfate/sapindus-saponin (SDS/SAP) composite system onto BC through simple, environmental friendly approach. Result showed that performance SDMBC has been greatly improved, compared with or using alone SDS and SAP, ability increased 48.83%, 29.50%, 36.44%, respectively, best effect appeared when concentration SAP to 0.8 CMC. exhibited high abilities 130.23, 108.43, 277.09 125.27, 112.78 mg/g for heavy metal ions lead Pb(II), Cadmium Cd(II) organic pollutants different chemical properties bisphenol A(BPA), Methylene blue (MB), P-nitrophenol (PNP), higher than most previously reported adsorbents, importantly, can still efficient removal capabilities even in binary competition. Subsequently, characterized Fourier Transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), scanning electron microscopy (SEM), Zeta potential (Zeta), it found more layered structure, richer functional groups amorphous structure BC, which are closely related improving its capacity. The behavior MB show process be spontaneous, propitious, endothermic, isotherms fitted Freundlich models well, pseudo-second-order describes kinetics adsorption, suggesting is multi-layer adsorption. little affected ionic strength coexisting substances, could remained rate over wide pH range, keep rates after 5 reuses. Based on FT-IR analysis, plausible mechanism proposed, including hydrogen bond, electrostatic attraction π-π bonding. Cost analysis manifests efficiency cheap eco-adsorbents commercial activated carbon, dosage required 99% fixed amount volumes effluent predicted. Seven machine learning (ML) were used predict (60 mg/L) SDMBC, Shapley Additive Explanations (SHAP) model interpretation. Finding Extreme Gradient Boosting (XGBoost) performance, order feature importance as time> Ratio> pH> concentration> temperature. Thus, new eco-adsorbents, effectively remove various types pollutants, great application sewage treatment, while accurate ML prediction presented valuable advice designing adsorbents optimization operating conditions future.

Language: Английский

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Preparation and performance of novel GG/PVA/SA suppressant for coal dust control

Process Safety and Environmental Protection, Journal Year: 2025, Volume and Issue: unknown, P. 106826 - 106826

Published: Jan. 1, 2025

Language: Английский

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Advances in structure designing and function tailoring strategy toward alginate-based hydrogels for efficient water remediation: A review

International Journal of Biological Macromolecules, Journal Year: 2025, Volume and Issue: unknown, P. 140801 - 140801

Published: Feb. 1, 2025

Language: Английский

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Alginate vs chitosan composites loaded with halloysite/molecularly imprinted polymer hybrids for tetracycline removal: Comparative studies of adsorption behaviour

International Journal of Biological Macromolecules, Journal Year: 2025, Volume and Issue: 307, P. 142000 - 142000

Published: March 11, 2025

Language: Английский

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An Amidoxime-functionalized chitosan dual-network hydrogel: Enhanced uranium-water separation capacity

International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 289, P. 138867 - 138867

Published: Dec. 17, 2024

Language: Английский

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