What does this research mean for the field?

NiO-decorated activated carbon (NiO@AC) is a highly efficient, selective, and reusable adsorbent for removing Pb(II) from water, achieving a maximum adsorption capacity of 826.9 mg/g. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To synthesize a nickel oxide-decorated activated carbon nanocomposite and assess its selectivity, kinetics, and capacity for removing lead ions from contaminated water.

August 30, 2026CLEAN - Soil Air WaterOpen Access

NiO‐Decorated Activated Carbon for Selective and High‐Performance Pb(II) Adsorption

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Authors

OYOla Yousef EAEbtsam Alshammari MAMaha D. Alghamdi

Discussion

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Overview

Experimental study demonstrates high-capacity lead adsorption in contaminated water using nickel oxide-decorated activated carbon, highlighting its promise for wastewater purification.

Key Points

To synthesize a nickel oxide-decorated activated carbon nanocomposite and assess its selectivity, kinetics, and capacity for removing lead ions from contaminated water.
Synthesized the NiO-decorated activated carbon (NiO@AC) nanocomposite using chemical activation followed by precipitation-assisted deposition.
Tested Pb(II) removal efficiency under varied pH levels and initial concentrations up to 200 mg/L.
Evaluated adsorption mechanisms, selectivity against competing ions, and reusability across multiple adsorption-desorption cycles using Langmuir and pseudo-second-order kinetic modeling.
Achieved an optimal Pb(II) removal efficiency of 95% at pH 5, maintaining 89% removal at an initial concentration of 200 mg/L.
Conformed to the Langmuir isotherm model (R² = 0.9786) with a maximum monolayer adsorption capacity of 826.9 mg/g and pseudo-second-order kinetics indicative of chemisorption.
Maintained strong selectivity for Pb(II) in the presence of competing metal ions and retained stable performance across repeated regeneration cycles.

Cite This Study

Yousef et al. (2026) studied this question.

synapsesocial.com/papers/6a93f07a6c1a8fb52e79ca4f https://doi.org/10.1002/clen.70265

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August 30, 2026CLEAN - Soil Air WaterOpen Access

NiO‐Decorated Activated Carbon for Selective and High‐Performance Pb(II) Adsorption

View Full Paper

Ask AI

Bookmark

Authors

OYOla Yousef EAEbtsam Alshammari MAMaha D. Alghamdi

Discussion

Member takes

Overview

Experimental study demonstrates high-capacity lead adsorption in contaminated water using nickel oxide-decorated activated carbon, highlighting its promise for wastewater purification.

Key Points

To synthesize a nickel oxide-decorated activated carbon nanocomposite and assess its selectivity, kinetics, and capacity for removing lead ions from contaminated water.
Synthesized the NiO-decorated activated carbon (NiO@AC) nanocomposite using chemical activation followed by precipitation-assisted deposition.
Tested Pb(II) removal efficiency under varied pH levels and initial concentrations up to 200 mg/L.
Evaluated adsorption mechanisms, selectivity against competing ions, and reusability across multiple adsorption-desorption cycles using Langmuir and pseudo-second-order kinetic modeling.
Achieved an optimal Pb(II) removal efficiency of 95% at pH 5, maintaining 89% removal at an initial concentration of 200 mg/L.
Conformed to the Langmuir isotherm model (R² = 0.9786) with a maximum monolayer adsorption capacity of 826.9 mg/g and pseudo-second-order kinetics indicative of chemisorption.
Maintained strong selectivity for Pb(II) in the presence of competing metal ions and retained stable performance across repeated regeneration cycles.

Cite This Study

Yousef et al. (2026) studied this question.

synapsesocial.com/papers/6a93f07a6c1a8fb52e79ca4f https://doi.org/10.1002/clen.70265

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