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author:

Peng, Huiping (Peng, Huiping.) [1] | Fan, Gongduan (Fan, Gongduan.) [2] (Scholars:范功端) | Zheng, Xiaomei (Zheng, Xiaomei.) [3] | Luo, Jing (Luo, Jing.) [4] | Zhou, Jinjin (Zhou, Jinjin.) [5]

Indexed by:

Scopus SCIE

Abstract:

The impacts of structure and morphology of titanate nanomaterials (TNs) synthesized by simple hydrothermal method on the lead (Pb2+) adsorption in aqueous solutions were systematically evaluated and clarified. The physical-chemical properties of the TNs including chemical composition, morphology, surface area, and structure were characterized. The adsorption capacity, kinetics, equilibrium model, and mechanism of as-prepared TNs were investigated. The results showed that the structure and morphology of TNs change with the reaction temperature and reaction time. The flaky structure of TNs was formed at 100 degrees C and 130 degrees C with reaction time of 24 h, or 12-36 h under the temperature of 130 degrees C. Under 150 degrees C and 180 degrees C with 24 h, 48 h, or more with temperature of 130 degrees C, the synthesized structure was linear. The flakes structure of TNs had higher adsorption capacity for Pb2+ than linear structure. The adsorption capacity on Pb2+ was up to 504.12 mg/g, and the adsorption kinetics for Pb2+ followed pseudo-second-order model. The equilibrium data were in accordance with Langmuir model. The adsorption of heavy metals by flaky TNs could be attributed to the interaction of heavy metal ions with hydroxyl groups in TNs. This study has shown that titanate nanosheets could be a potential adsorbent for the removal of Pb2+ from aqueous solution.

Keyword:

Adsorption kinetics Hydrothermal reaction Lead Morphology Titanate nanomaterials

Community:

  • [ 1 ] [Peng, Huiping]Fuzhou Univ, Coll Civil Engn, Fujian 350116, Peoples R China
  • [ 2 ] [Fan, Gongduan]Fuzhou Univ, Coll Civil Engn, Fujian 350116, Peoples R China
  • [ 3 ] [Zheng, Xiaomei]Fuzhou Univ, Coll Civil Engn, Fujian 350116, Peoples R China
  • [ 4 ] [Zhou, Jinjin]Fuzhou Univ, Coll Civil Engn, Fujian 350116, Peoples R China
  • [ 5 ] [Luo, Jing]Fujian Minke Environm Technol Dev Co Ltd, Fuzhou 350002, Fujian, Peoples R China

Reprint 's Address:

  • 范功端

    [Fan, Gongduan]Fuzhou Univ, Coll Civil Engn, Fujian 350116, Peoples R China

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Source :

DESALINATION AND WATER TREATMENT

ISSN: 1944-3994

Year: 2018

Volume: 136

Page: 306-319

1 . 2 3 4

JCR@2018

1 . 0 0 0

JCR@2023

ESI Discipline: ENGINEERING;

ESI HC Threshold:170

JCR Journal Grade:3

CAS Journal Grade:4

Cited Count:

WoS CC Cited Count: 3

SCOPUS Cited Count: 3

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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