Removal of heavy metals from urban soil using functionalized carbon-coated composite

Maqbool, Ahsan; Wang, Hui; Xin, Xiaying; Khaliq, Abdul; Sarwar, Muhammad Tariq

doi:10.1007/s13762-020-02790-1

Cited by 7 publications

(4 citation statements)

References 59 publications

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“…Firm peaks of Pb4f in the XPS spectra (Fig. 1D) revealed that PbO2 and Pb-metal indicating coincide with metal hydroxides and a mixture of zero-valent state [14,20]. C1s peaks (Fig.…”

Section: Removal Mechanismmentioning

confidence: 95%

“…The magnetic nanocomposite was synthesized via hydrothermal treatment as discussed [14]. Raw magnetic ceramsite was soaked in HCl (3M) aqueous solution under magnetic stirring with 160 rpm at room temperature (25 ͦ C) for 10-hours.…”

Section: Synthesis Of Magnetic Nanocompositementioning

confidence: 99%

“…1B) of MnC-Pb, referring to the sigma bond (C-C) formed by hybridization of each carbon atom, π-bond resulting from hybridization of sp 3 (C-O), and a single bond of carbon to oxygen. The double bond is more potent than the π-bond (O-C=O) after treatment in lead-containing soil, which is likely to be reduced by R-OH, R-COOH, and oxidized [14]. These functional groups have a weak affinity towards protons.…”

Section: Removal Mechanismmentioning

confidence: 99%

“…An approach to overcome pollution is under development. Physiochemical removal of lead would be appropriate using a sorbent as indicated in the literature [12][13][14], but these sorbents for wastewater, agricultural soil, and acid mine soil, do notseparate from the soil. Moreover, sorbent can accumulate via drinking water sources and food chains due to self-aggregation and have an eco-toxic impact on bacteria, mammalian cells, microarthropods, and other soil inhabitants [15].…”

Section: Introductionmentioning

confidence: 99%

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Magnetic nanocomposite-system for the remediation of lead-contaminated urban surface

et al. 2021

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Lead pollution contributes 2% to environmental health and is found in air, dust, soil, and water. The presence of lead on the urban surface can put at risk human health and hinder sustainable urban development. The existing strategies are not feasible to remediate lead from the urban surface due to heavy infrastructure, long-term monitoring, and less space availability. Therefore, the magnetic nanocomposite-system is designed to remove lead from the urban surface regardless of contaminated sites within a short period of time and is immediately applicable. The magnetic nanocomposite is synthesized by hydrothermal treatment and has plenty of hydroxyl and carboxyl functional groups with mesoporous surfaces. The results showed that the leadremoval efficiency exceeded 97% even at a high concentration of 300 mg/L. pH has no significant effect on the removal efficiency. Also, it has shown stability and removal efficiency over 96% even after five reuse cycles. The proposed mechanism for the implication and separation of the magnetic nanocomposite system for the in-situ remediation approach has also highlighted the various applicable sites.

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“…Firm peaks of Pb4f in the XPS spectra (Fig. 1D) revealed that PbO2 and Pb-metal indicating coincide with metal hydroxides and a mixture of zero-valent state [14,20]. C1s peaks (Fig.…”

Section: Removal Mechanismmentioning

confidence: 95%

Section: Synthesis Of Magnetic Nanocompositementioning

confidence: 99%

Section: Removal Mechanismmentioning

confidence: 99%