Investigation of Mesoporous Graphitic Carbon Nitride as the Adsorbent to Remove Ni (II) Ions
The mesoporous graphitic carbon nitride (mpg-C3N4/r, r was defined as the initial silica/dicyandiamide mass ratio) was successfully synthesized by heating the mixture of silica and dicyandiamide in a nitrogen atmosphere. The morphology and structure of mpg-C3N4/r were characterized by scanning elect...
| Veröffentlicht in: | Water environment research : a research publication of the Water Environment Federation. - 1998. - 88(2016), 4 vom: 15. Apr., Seite 318-24 |
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| Weitere Verfasser: | , , , |
| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2016
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| Zugriff auf das übergeordnete Werk: | Water environment research : a research publication of the Water Environment Federation |
| Schlagworte: | Journal Article Research Support, Non-U.S. Gov't Nitriles Water Pollutants, Chemical cyanogen 534Q0F66RK Nickel 7OV03QG267 |
| Zusammenfassung: | The mesoporous graphitic carbon nitride (mpg-C3N4/r, r was defined as the initial silica/dicyandiamide mass ratio) was successfully synthesized by heating the mixture of silica and dicyandiamide in a nitrogen atmosphere. The morphology and structure of mpg-C3N4/r were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), Brunauer-Emmett-Teller surface area measurement (BET), X-ray powder diffraction (XRD), and Fourier Transform Infrared spectroscopy (FT-IR). The adsorption performances of Ni (II) ions by mpg-C3N4/r were investigated. With increasing of r value, the BET specific surface area of the synthesized mpg-C3N4/r increased; the highest specific surface area of mpg-C3N4/1.5 increased up to 169.3 m2/g. This work shows that mpg-C3N4/1.5 is a promising, high-efficiency adsorbent that can be used to purify the water of a low Ni (II) ions concentration. The maximum adsorption capacity of Ni(II) ions by mpg-C3N4/1.5 was 15.26 mg/g. The adsorption properties of Ni (II) ions by mpg-C3N4/r complied well with pseudo-second-order kinetics and Langmuir isotherm model |
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| Beschreibung: | Date Completed 26.05.2016 Date Revised 01.05.2016 published: Print Citation Status MEDLINE |
| ISSN: | 1554-7531 |
| DOI: | 10.2175/106143015X14212658613398 |