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Article Abstract
Objective: This study enhanced wood-activated carbon using ammonia chemical vapor deposition (NH-CVD) to improve its adsorption properties for carbamazepine (CBZ).
Methods: Modification was done in a vacuum tube sintering furnace. We used X-ray photoelectron spectroscopy (XPS), Brunauer-Emmett-Teller (BET) method, and Fourier Transform Infrared Spectroscopy (FTIR) for characterization and analysis. Kinetic adsorption and isothermal adsorption tests were carried out by UV spectrophotometry.
Results: NH-CVD significantly increased the micropore volume and surface area, notably in the sample, and raised the nitrogen content on the carbon surface. The adsorption capacity of modified activated carbon () reached 130.81 mg/g, outperforming the unmodified () at 72.46 mg/g. FTIR results indicated strong hydrogen bonding with CBZ molecules.
Conclusion: NH-CVD modification improves CBZ adsorption on wood activated carbon by increasing micropore volume and enhancing hydrogen bonding, confirming a single-layer adsorption on a heterogeneous surface.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11923042 | PMC |
| http://dx.doi.org/10.2147/IJN.S495746 | DOI Listing |
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