eprintid: 14999
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/01/49/99
datestamp: 2023-11-10 03:29:35
lastmod: 2023-11-10 03:29:35
status_changed: 2023-11-10 01:58:22
type: article
metadata_visibility: show
creators_name: Ullah, S.
creators_name: Al-Sehemi, A.G.
creators_name: Mubashir, M.
creators_name: Mukhtar, A.
creators_name: Saqib, S.
creators_name: Bustam, M.A.
creators_name: Cheng, C.K.
creators_name: Ibrahim, M.
creators_name: Show, P.L.
title: Adsorption behavior of mercury over hydrated lime: Experimental investigation and adsorption process characteristic study
ispublished: pub
keywords: Calcite; Heavy metals; Hydrated lime; Hydration; Industrial water treatment; Lead removal (water treatment); Lime; Mercury (metal); Metal analysis; Metal ions; Nanocrystalline materials; Particle size; Particle size analysis; Spectrum analysis; Thermodynamic stability, Adsorbent particle; Adsorbent surfaces; Adsorption behavior; Adsorption capacities; Experimental investigations; Selective adsorption; Structural characterization; Treatment efficiency, Adsorption, adsorbent; calcium carbonate; calcium oxide; hydroxide; mercury; calcium derivative; calcium oxide; mercury; oxide, adsorption; Article; Fourier transform infrared spectroscopy; isotherm; particle size; surface area; thermostability; X ray powder diffraction; adsorption; infrared spectroscopy; kinetics; pH; water pollutant, Adsorption; Calcium Compounds; Hydrogen-Ion Concentration; Kinetics; Mercury; Oxides; Spectroscopy, Fourier Transform Infrared; Water Pollutants, Chemical
note: cited By 32
abstract: This study reports the application of hydrated lime for the effective adsorption of the heavy mercury metal from the aqueous phase solutions. Initially, hydrated lime was subjected to structural characterization and thermal stability analysis. The FT-IR spectrum analysis revealed that the existence of the O�H bonds as a confirmation of hydrated lime formation. Subsequently, the XRD powder-based analysis demonstrated that most of the hydrated lime is pure crystalline material known as Portlandite while a small amount of calcite is also present in the structure of the hydrated lime. The thermal stability analysis revealed that the hydrated lime is highly thermally stable under harsh conditions without decomposing at higher temperatures up to 500 °C. Furthermore, the hydrated lime was subjected to the selective adsorption of heavy metal mercury to investigate the potential influence of the adsorbent particle size and loading on adsorption capacity. The results demonstrated that the decrease in the adsorbent particle size leads to the improvement in the mercury adsorption attributing to the rise in specific surface area. The enhancement in the loading of the adsorbent resulted in a reduction in mercury adsorption directing to the fact that already adsorbed metal ions onto the adsorbent surface lead to hindrance for the adsorption of other ions of heavy metal. These results lead to a significant impact on modern in inventing different adsorbents with promising water treatment efficiency for more industrial applications and the related recovery of mercury. © 2021 Elsevier Ltd
date: 2021
publisher: Elsevier Ltd
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85099173726&doi=10.1016%2fj.chemosphere.2020.129504&partnerID=40&md5=10098605d8c8f09aa581029a5b8c7790
id_number: 10.1016/j.chemosphere.2020.129504
full_text_status: none
publication: Chemosphere
volume: 271
refereed: TRUE
issn: 00456535
citation:   Ullah, S. and Al-Sehemi, A.G. and Mubashir, M. and Mukhtar, A. and Saqib, S. and Bustam, M.A. and Cheng, C.K. and Ibrahim, M. and Show, P.L.  (2021) Adsorption behavior of mercury over hydrated lime: Experimental investigation and adsorption process characteristic study.  Chemosphere, 271.   ISSN 00456535