Jump to main content
Jump to site search


Highly efficient adsorption of uranium(VI) from aqueous solution by a novel adsorbent: titanium phosphate nanotube

Abstract

A novel adsorbent, titanium phosphate nanotube, was fabricated through a facile solvothermal method. The adsorbent was characterized by scanning electron microscopy, nitrogen adsorption-desorption isotherms, X-ray diffraction, zeta potential and Fourier transformed infrared spectroscopy in detail. The as-prepared adsorbent exhibited high performance for U(VI) adsorption from aqueous solution. The influencing factors including pH, temperature, contact time, adsorbent concentration and adsorbate concentration on the U(VI) adsorption were systematically researched. The sorption of U(VI) on the titanium phosphate nanotube accorded with Langmuir isotherm model and the maximum adsorption capacity was 344 mg g-1, which is relatively higher than most reported materials in recent years. According to kinetic and thermodynamic studies, the adsorption process fitted pseudo-second-order model better and it was spontaneous. The U(VI) adsorption was mostly attributed to the electrostatic interaction and surface complexation. Moreover, the study of desorption and reusability on the titanium phosphate nanotube showed that its adsorption capacity exhibited a little decreasing after 4 cycles, which indicated that this material may have a promising prospect in industrial application for removing radionuclides from aqueous solution.

Back to tab navigation

Supplementary files

Publication details

The article was received on 13 Jul 2018, accepted on 30 Aug 2018 and first published on 01 Sep 2018


Article type: Paper
DOI: 10.1039/C8EN00761F
Citation: Environ. Sci.: Nano, 2018, Accepted Manuscript
  •   Request permissions

    Highly efficient adsorption of uranium(VI) from aqueous solution by a novel adsorbent: titanium phosphate nanotube

    M. tang, J. chen, P. Wang, C. Wang and Y. Ao, Environ. Sci.: Nano, 2018, Accepted Manuscript , DOI: 10.1039/C8EN00761F

Search articles by author

Spotlight

Advertisements