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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 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.
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 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.
Investigation of Mesoporous Graphitic Carbon Nitride as the Adsorbent to Remove Ni (II) Ions
Xin, Gang (author) / Xia, Yuanjiao (author) / Lv, Yuhua (author) / Liu, Luman (author) / Yu, Bei (author)
Water Environment Research ; 88 ; 318-324
2016-04-01
7 pages
Article (Journal)
Electronic Resource
English
Facile fabrication of ordered mesoporous graphitic carbon nitride for RhB photocatalytic degradation
| British Library Online Contents | 2017
Facile fabrication of ordered mesoporous graphitic carbon nitride for RhB photocatalytic degradation
| British Library Online Contents | 2017
Facile fabrication of ordered mesoporous graphitic carbon nitride for RhB photocatalytic degradation
| British Library Online Contents | 2017
Facile fabrication of ordered mesoporous graphitic carbon nitride for RhB photocatalytic degradation
| British Library Online Contents | 2017