Removal of p-chlorophenol from aqueous solutions by carbon nanotube hybrid polymer adsorbents

التفاصيل البيبلوغرافية
العنوان: Removal of p-chlorophenol from aqueous solutions by carbon nanotube hybrid polymer adsorbents
المؤلفون: Shian Ye, Liheng Xu, Xiaoyu Sui, Zhongmiao Wang
المصدر: Chemical Engineering Research and Design. 123:76-83
بيانات النشر: Elsevier BV, 2017.
سنة النشر: 2017
مصطلحات موضوعية: Chlorophenol, chemistry.chemical_classification, Aqueous solution, Chromatography, Materials science, Exothermic process, General Chemical Engineering, 02 engineering and technology, General Chemistry, Polymer, Carbon nanotube, 010501 environmental sciences, 021001 nanoscience & nanotechnology, 01 natural sciences, law.invention, Hydrophobic effect, chemistry.chemical_compound, Adsorption, chemistry, Chemical engineering, law, 0210 nano-technology, Phase inversion, 0105 earth and related environmental sciences
الوصف: Aiming to remove chlorophenols from aqueous solution, carbon nanotube (CNT) hybrid polymer beads were fabricated via the phase inversion method, and were adopted as adsorbents to remove p -chlorophenol in this study. The CNT hybrid bead was composed of a smooth outer surface and hierarchical porous inner structure, with worm-like CNTs lying on/embedded in the polymer slices. The incorporation of CNTs in the polymer beads resulted in a dramatically improvement of the surface area. The adsorption kinetics and isotherms of p -chlorophenol from aqueous solutions on CNT hybrid adsorbents were studied, and the impacts of temperature and pH value on the adsorption were also explored. The adsorption capacity of CNT hybrid adsorbents towards p -chlorophenol was significantly superior to that of the neat polymer adsorbent and pristine CNT. And the CNT hybrid adsorbents also showed an outstanding separation performance from water treatment system after adsorption. The adsorption process of p -chlorophenol on CNT hybrid adsorbents was found to be an exothermic process, and physical adsorption was the predominant mechanism. The neutral p -chlorophenol molecule was a more effective form for adsorption than was the ionic form. The interaction between p -chlorophenol and the CNT hybrid adsorbents responsible for the adsorption was assumed mainly non-polar forces such as hydrophobic interactions and π–π electron coupling.
تدمد: 0263-8762
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_________::208c9f76ba324158e953984ea1cc3738Test
https://doi.org/10.1016/j.cherd.2017.04.034Test
حقوق: CLOSED
رقم الانضمام: edsair.doi...........208c9f76ba324158e953984ea1cc3738
قاعدة البيانات: OpenAIRE