Dibromocarbene Modified Graphene: Preparation, Characterization and Its Application in Removal of Pb(II) from Aqueous Solutions
In this study, a novel graphene-based composite, dibromocarbene modified graphene (Gr-CBr2), was successfully synthesized by a simple cycloaddition procedure. The obtained composite was fully characterized by Fourier transform infrared (FT-IR) spectroscopy, Raman spectroscopy,
highresolution transmission electron microscopy (HRTEM) and X-ray photoelectron spectroscopy (XPS). The adsorption properties of Gr-CBr2 for Pb(II) ions from aqueous solutions were evaluated. The experimental data fitted well to the Langmuir isotherm. And a maximum adsorption capacity
of 49.46 mg · g–1 was obtained for Gr-CBr2 at 298 K, which was around 19 times higher than that (mg · g–1) of as-received graphene. The results indicated that Gr-CBr2 may be used as an efficient adsorbent for the removal
of Pb(II) from aqueous solutions.
Keywords: CHARACTERIZATION; DIBROMOCARBENE; FUNCTIONALIZATION; GRAPHENE NANOSHEETS
Document Type: Short Communication
Publication date: 01 March 2016
- Nanoscience and Nanotechnology Letters (NNL) is a multidisciplinary peer-reviewed journal consolidating nanoscale research activities in all disciplines of science, engineering and medicine into a single and unique reference source. NNL provides the means for scientists, engineers, medical experts and technocrats to publish original short research articles as communications/letters of important new scientific and technological findings, encompassing the fundamental and applied research in all disciplines of the physical sciences, engineering and medicine.
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