Adsorption of lead ion on the hydrated rutile (110) surface: a DFT calculation study

• Autorzy: Zou Heng , Cao Qinbo , Chen Xiumin , Liu Dianwen

Identyfikatory

DOI

10.5277/ppmp19016

• Języki publikacji: EN

Abstrakty

EN

The adsorption behavior of lead species on the hydrated rutile surface was investigated with inductively coupled plasma mass spectrometry (ICP-MS) measurements and density functional theory (DFT) calculations. ICP-MS experiments suggested that lead species can be readily absorbed by the rutile powder in water at pH 6.5. From the ICP-MS results and the species distribution of Pb2+, it was concluded that Pb₂₊ was the major lead species adsorbing at the rutile/water interface at the pH of 6.5. DFT calculation results indicated that Pb2+ could adsorb at four different sites on the surface. At each site, water molecules or OH groups were involved in the reaction with Pb₂₊. The water molecules/OH groups on the rutile surface play an important role during the adsorption of Pb₂₊ on the hydrated rutile surface.

Słowa kluczowe

EN

rutile; hydrated surface; lead ion; adsorption; density functional theory

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2019
• Tom: Vol. 55, iss. 4
• Strony: 951--959
• Opis fizyczny: Bibliogr. 32 poz., rys., tab., wz.

Twórcy

autor

Zou Heng

• Faculty of Land Resources Engineering, Kunming University of Science and Technology, Kunming 650093, Yunnan, PR China

autor

Cao Qinbo

• Faculty of Land Resources Engineering, Kunming University of Science and Technology, Kunming 650093, Yunnan, PR
• State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization，Kunming 650093

autor

Chen Xiumin

• Faculty of Land Resources Engineering, Kunming University of Science and Technology, Kunming 650093, Yunnan, PR
• State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming 650093

autor

Liu Dianwen

• Faculty of Land Resources Engineering, Kunming University of Science and Technology, Kunming 650093, Yunnan, PR
• State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming 650093

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).