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2018 | 27 | 6 |

Tytuł artykułu

Cr (VI) removal from aqueous solution using starch and sodium carboxymethyl cellulose-coated Fe and Fe /Ni nanoparticles

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
Starch and sodium carboxymethyl cellulose-coated Fe and Fe /Ni nanoparticles were synthesized and their Cr (VI) removal capabilities were evaluated and compared. We found that starch and sodium carboxymethyl cellulose-coated nanoscale zero-valent iron-nickel (SS-nZVI-Ni) showed the better Cr (VI) removal performance. The effect of acidic conditions on Cr(VI) removal by SS-Nzvi-Ni revealed that the Cr (VI) removal efficiency by SS-nZVI-Ni reached the maximum of 95.70% at pH = 2. The effect of different initial Cr (VI) concentrations showed that SS-nZVI-Ni performed well at a high Cr(VI) concentration. Langmuir-Hinshelwood first-order kinetic model could describe the reduction process well. SEM images revealed that SS-nZVI-Ni had a large surface area, which discarded the problem of aggregation. XRD and XPS analysis of SS-nZVI-Ni showed that SS-nZVI-Ni and Cr (III) formed an alloy on the surface of SS-nZVI-Ni after the reaction. The study provides an option for practical application of SS-nZVI-Ni in Cr (VI) removal.

Słowa kluczowe

Wydawca

-

Rocznik

Tom

27

Numer

6

Opis fizyczny

p.2785-2792,fig.,ref.

Twórcy

autor
  • School of Urban Construction, Wuhan University of Science and Technology, Wuhan 430065, China
autor
  • School of Urban Construction, Wuhan University of Science and Technology, Wuhan 430065, China
  • Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources, Wuhan University of Science and Technology, Wuhan, 430081, China
  • Hubei Key Laboratory of Regional Development and Environmental Response, Hubei University, Wuhan, 430062, China
autor
  • School of Urban Construction, Wuhan University of Science and Technology, Wuhan 430065, China
autor
  • School of Urban Construction, Wuhan University of Science and Technology, Wuhan 430065, China
autor
  • School of Urban Construction, Wuhan University of Science and Technology, Wuhan 430065, China
autor
  • School of Urban Construction, Wuhan University of Science and Technology, Wuhan 430065, China

Bibliografia

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Typ dokumentu

Bibliografia

Identyfikatory

Identyfikator YADDA

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