Abstract
The objective of this research is to produce the low-cost activated carbon from Jatropha curcas L. by chemical activation using zinc chloride ZnCl2. The effects of the impregnation ratio on the surface and chemical properties of activated carbon were investigated. The impregnation ratio was selected at the range of 1:1–10:1 for investigation. The optimum conditions resulted in an activated carbon with a carbon content of 80% wt, while the specific surface area evaluated using nitrogen adsorption isotherm corresponds to 600 m2/g.
Keywords: Activated carbon, Jatropha curcasL., Porous materials
Specifications Table
| Subject area | Materials |
|---|---|
| More specific subject area | Activate carbon |
| Type of data | Table, Figure |
| How data was acquired | FTIR, SEM, adsorption efficiency |
| Data format | Analyzed |
| Experimental factors | Surface modification of activated carbon from Jatropha curcas L. waste by zinc chloride treatment |
| Experimental features | The objective of this research is to produce the low-cost activated carbon from Jatropha curcas by chemical activation using zinc chloride. The effects of the impregnation ratio on the surface and chemical properties of activated carbon were investigated. The impregnation ratio was selected at the range of 1:1–10:1 for investigation. The optimum conditions resulted in an activated carbon with a carbon content of 80% wt, while the specific surface area evaluated using nitrogen adsorption isotherm corresponds to 600 m2/g. |
| Data source location | Faculty of Science and Technology, Thammasat University, Thailand |
| Data accessibility | Data are provided in this article |
Value of the data
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Activated carbon was prepared from Jatropha curcas.
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Pyrolysis technique was employed to prepare activated carbon.
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Activated carbon can be employed as sensor material, membrane technology and catalysis materials.
1. Data
Data of the as-synthesized activated carbon from Jatropha curcas.
2. Experimental design, materials and methods
Table 1 exhibits elemental analysis of activated carbon after surface modification on conventional reaction of zinc chloride [1], [2], [3]. The percent yield of activated carbon after zinc chloride modification was estimated to be 40–48 wt %.
Table 1.
Elemental analysis of activated carbon after chemical modification.
| Sample | Impregnation ratio | Elemental analysis (wt%) |
Yield (wt%) | |||
|---|---|---|---|---|---|---|
| C | H | N | Oa | |||
| Physic nut waste char | – | 70.70 | 6.20 | 1.00 | 22.80 | 36.45 |
| AC1:1 | 1:1 | 83.10 | 5.50 | 3.40 | 8.00 | 47.82 |
| AC3:1 | 3:1 | 80.40 | 5.80 | 2.50 | 11.30 | 45.30 |
| AC5:1 | 5:1 | 78.30 | 6.40 | 2.60 | 12.70 | 44.50 |
| AC7:1 | 7:1 | 75.70 | 6.90 | 2.10 | 15.30 | 42.27 |
| AC10:1 | 10:1 | 71.50 | 6.00 | 1.80 | 20.70 | 40.09 |
By different.
Fig. 1 shows that the functional groups of activated carbon differ significantly from those of pyrolyzed char [4], [5], [6], [7], [8]. The spectrum from char at 3393 cm−1 indicated the presence of the –OH group of phenol. The methylene group is detected by –CH stretching at a wave number of 2924 cm−1. The aldehyde group of –O–CH3 is found around 2853 cm−1. Strong bands at 1641 cm−1 indicate C–O stretching of carboxyl or carbonyl groups. Methyl or amine groups are shown by a peak around 1385–1380 cm−1. The band from 1200 to 1000 cm−1 is the fingerprint of syringyl units. Aldehyde and derivatives of benzene are detected by peaks at 875 and 761 cm−1.
Fig. 1.
FTIR spectra of surface modification of activated carbon derived from Jatropha curcas.
Fig. 2 exhibits the morphological properties of activated carbon derived from J. curcas and its surface modification by zinc chloride. Without any surface modification, the porous structure was less. It exhibited the non-uniform structure of agglomerated particle.
Fig. 2.
Morphological properties of activated carbon and its surface modification with reaction of zinc chloride (a) activated carbon (b) AC 1:1 (c) AC 3:1 (d) AC 5:1 (e) AC 7:1 (f) AC 10:1.
Fig. 3 exhibits the N2 adsorption isotherm of activated carbon derived from J. curcas. It was important to note that the specific surface area, pores size and pore volume were increased with respect to impregnation ratio from 1.0 to 10.0. The maximum specific surface area was due to 604.31 m2/g.
Fig. 3.
Nitrogen adsorption isotherm of produced activated carbon modified by zinc chloride.
Fig. 4 exhibits the iodine number and methylene blue adsorption of activated carbon. When the activating agent comes in contact with the char, it reacts both with the exterior and the interior of the particle, in which most of the disorganized carbon is removed. With regard to the effect of impregnation ratio, the result indicated iodine number and methylene blue adsorption range of 333–514 and 186–299 mg/g, respectively.
Fig. 4.
Analytical data on iodine number and methylene blue adsorption.
Acknowledgements
The authors gratefully acknowledge the financial support from NSTDA-University-Industry Research Collaboration (NUI-RC). We sincerely appreciate on the financial support from Institute of Research and Development, Kamphaeng Phet Rajabhat University, Thailand. Last but not least, we wish to thank the financial support from Faculty of Science and Technology, Thammasat University, grant number 14/2559.
Footnotes
Transparency data associated with this article can be found in the online version at doi:10.1016/j.dib.2016.11.019.
Contributor Information
P. Pratumpong, Email: pratumpo@tu.ac.th.
S. Toommee, Email: s.toommee@gmail.com.
Transparency document. Supplementary material
Supplementary material
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