Introducing an alternate conjugated material for enhanced lead(II) capturing from wastewater

Add time:08/15/2019    Source:sciencedirect.com

Due to the huge amount of lead (Pb(II)) containing wastewater from the industrial effluent production, an innovative material is welcome to minimize the contamination level. Assuming mesoporous conjugated adsorbent (MpCA) fabrication, the novel organic ligand was synthesized and then subsequently impaired onto the porous carrier materials by direct fabrication approach for selective optical monitoring and adsorption of lead (Pb(II)) from contaminated waters. The MpCA was systematically characterized to understand the mesoporous homogeneity with high surface area. The application of Pb(II) capturing by MpCA was explored at pH 5.50 with exhibition of significant color. The other experimental parameters, including contact time, limit detection, color optimization, concentration effects for adsorption equilibrium and highest adsorption capacity were defined. The results were confirmed that the MpCA was not affected with the existing counter-ion in the signal intensity rather than the Pb(II). The MpCA could monitor low concentration Pb(II) as the detection limit was 0.17 μg/L, and the adsorption of highest removal capacity were 192.16 mg/g. The diverse foreign ion was not reduced the removal capacity of Pb(II), and the MpCA has approximately no adsorption capacity for other ions at this pH, which was the excessive efficient particular of Pb(II) using of the proposed MpCA. Desorption experiments were also evaluated to confirm the environmental compatibility of the proposed MpCA adsorbents. The Pb(II) was completely desorbed with 0.15 M HCl acid and then ready to reuse in the next cycle after washing with water and able to reuse in several cycles of Pb(II) monitoring and adsorption operations. Thus, the proposed MpCA is an alternative novel conjugated materials for enhanced Pb(II) remediation from contaminated waters as well as the production of value-added adsorbent for water treatments.

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