Highly efficient uranium (VI) capture from aqueous solution by means of a hydroxyapatite-biochar nanocomposite: Adsorption behavior and mechanism.

Adsorption Charcoal Durapatite Nanocomposites Uranium / analysis
Adsorption Biochar Hydroxyapatite Nanocomposite Uranium Wastewater treatment

Journal

Environmental research
ISSN: 1096-0953
Titre abrégé: Environ Res
Pays: Netherlands
ID NLM: 0147621

Informations de publication

Date de publication:
10 2021
Historique:
received: 19 04 2021
revised: 22 05 2021
accepted: 07 06 2021
pubmed: 16 6 2021
medline: 8 10 2021
entrez: 15 6 2021
Statut: ppublish

Résumé

The exploration and rational design of easily separable and highly efficient sorbents with the sufficient capability of retaining radioactive and toxic uranium U(VI) is paramount. In this study, a hydroxyapatite (HAP) biochar nanocomposite (BR/HAP) was successfully fabricated from rice straw biochar (BR), to be used as a new and efficient adsorbent for removing U(VI) from aqueous solution. Both BR and the BR/HAP composite were characterized via Brunauer-Emmett-Teller (BET), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and X-ray photo electron spectroscopy (XPS) techniques. Batch test results showed that BR/HAP exhibited remarkably higher adsorption capacity than the raw BR. A pseudo-second order kinetic model thoroughly explained the adsorption kinetics, providing the maximum U(VI) adsorption capacities (q

Identifiants

DOI: 10.1016/j.envres.2021.111518 PMID: 34129867
pubmed: 34129867
pii: S0013-9351(21)00812-4
doi: 10.1016/j.envres.2021.111518
pii:
doi:

Substances chimiques

biochar 0
Charcoal 16291-96-6
Uranium 4OC371KSTK
Durapatite 91D9GV0Z28

Types de publication

Journal Article Research Support, Non-U.S. Gov't

Langues

eng

Sous-ensembles de citation

IM

Pagination

111518

Informations de copyright

Copyright © 2021 Elsevier Inc. All rights reserved.

Auteurs

Waqas Ahmed (W)

Guangdong Provincial Key Laboratory for Radionuclides Pollution Control and Resources, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China; School of Civil Engineering, Guangzhou University, Guangzhou, 510006, PR China.

Avelino Núñez-Delgado (A)

Department of Soil Science and Agricultural Chemistry, Engineering Polytechnic School, Universidade de Santiago de Compostela, 27002, Lugo, Spain.

Sajid Mehmood (S)

College of Ecology and Environment, Hainan University, Haikou City, 570100, PR China.

Sehrish Ali (S)

National Engineering Laboratory for Improving Quality of Arable Land, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.

Muhammad Qaswar (M)

Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China.

Awais Shakoor (A)

Department of Environment and Soil Sciences, University of Lleida, 25198, Lleida, Spain.

Di-Yun Chen (DY)

Guangdong Provincial Key Laboratory for Radionuclides Pollution Control and Resources, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China; School of Civil Engineering, Guangzhou University, Guangzhou, 510006, PR China. Electronic address: cdy@gzhu.edu.cn.

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Classifications MeSH

questionsmedicales.fr › Phénomènes chimiques › Adsorption › Highly efficient uranium (VI) capture from...
questionsmedicales.fr › Produits chimiques inorganiques › Éléments › Carbone › Charbon de bois › Highly efficient uranium (VI) capture from...
questionsmedicales.fr › Produits chimiques inorganiques › Composés du phosphore › Acides du phosphore › Acides phosphoriques › Phosphates › Phosphates de calcium › Apatites › Hydroxyapatites › Durapatite › Highly efficient uranium (VI) capture from...
questionsmedicales.fr › Technologie, industrie et agriculture › Produits manufacturés › Nanostructures › Nanocomposites › Highly efficient uranium (VI) capture from...
questionsmedicales.fr › Produits chimiques inorganiques › Métaux › Métaux lourds › Uranium › Highly efficient uranium (VI) capture from...