Experimental investigation and DFT calculation of different amine/ammonium salts adsorption on kaolinite
Applied Surface Science, ISSN: 0169-4332, Vol: 419, Page: 241-251
2017
- 74Citations
- 82Captures
Metric Options: Counts1 Year3 YearSelecting the 1-year or 3-year option will change the metrics count to percentiles, illustrating how an article or review compares to other articles or reviews within the selected time period in the same journal. Selecting the 1-year option compares the metrics against other articles/reviews that were also published in the same calendar year. Selecting the 3-year option compares the metrics against other articles/reviews that were also published in the same calendar year plus the two years prior.
Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Article Description
The adsorption of four different amine/ammonium salts of DDA (Dodecyl amine), MDA ( N -methyldodecyl amine), DMDA ( N, N -dimethyldodecyl amine) and DTAC (Dodecyl trimethyl ammonium chloride) on kaolinite particles was investigated in the study through the measurement of contact angles, zeta potentials, aggregation observation, adsorption and sedimentation. The results show that different amine/ammonium salts can adsorb on the kaolinite surface to enhance the hydrophobicity and reduce the electronegativity of kaolinite particle surface, and thus induce a strong hydrophobic aggregation of kaolinite particles which promotes the settlement of kaolinite. To explore the adsorption mechanism of these four amine/ammonium salts on kaolinite surfaces, the adsorptions of DDA +, MDA +, DMDA + and DTAC + on kaolinite (001) surface and ( 001¯ ) surface are calculated with DFT (Density functional theory). The DFT calculation results indicate that different amine/ammonium cations can strongly adsorbed on kaolinite (001) surface and ( 001¯ ) surface by forming N H⋯O strong hydrogen bonds or C H⋯O weak hydrogen bonds, and there are strongly electrostatic attractions between different amine/ammonium cations and kaolinite surfaces. The main adsorption mechanism of amine/ammonium cations on kaolinite is hydrogen-bond interaction and electrostatic attraction.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S0169433217312229; http://dx.doi.org/10.1016/j.apsusc.2017.04.213; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85019067496&origin=inward; https://linkinghub.elsevier.com/retrieve/pii/S0169433217312229; https://dx.doi.org/10.1016/j.apsusc.2017.04.213
Elsevier BV
Provide Feedback
Have ideas for a new metric? Would you like to see something else here?Let us know