Publication Date:
2019
Description:
〈p〉Publication date: 5 April 2019〈/p〉
〈p〉〈b〉Source:〈/b〉 Colloids and Surfaces A: Physicochemical and Engineering Aspects, Volume 566〈/p〉
〈p〉Author(s): Gang Yu, Kuo Han, Jing Wang, Xiao Cheng, Hongmei Ma, Hongya Wu, Zhigang Yang, Guanglei Zhang〈/p〉
〈h5〉Abstract〈/h5〉
〈div〉〈p〉In the present work, the activated carbon fibers (ACFs) with homogenous and crystalline CeO〈sub〉2〈/sub〉-ZrO〈sub〉2〈/sub〉 coatings were obtained using a facile water steam treatment process at a low temperature (300 °C) for efficient removal of Pb(II) from aqueous solutions. The morphology, surface chemical states, and adsorption performance were studied extensively. Results demonstrated that the steam-treated CeO〈sub〉2〈/sub〉-ZrO〈sub〉2〈/sub〉/ACFs possessed superior high surface areas (783.23 m〈sup〉2〈/sup〉 g〈sup〉−1〈/sup〉) and pore volumes (0.41 cm〈sup〉3〈/sup〉 g〈sup〉−1〈/sup〉). Moreover, numerous C-O-M bonds formed in the interface between CeO〈sub〉2〈/sub〉-ZrO〈sub〉2〈/sub〉 coatings and ACFs, which can endow the adsorbent desired mechanical property and service durability as well as many surface hydroxyl groups were found and adsorption capacity (61.54 mg g〈sup〉−1〈/sup〉 at pH 6.5 ± 0.3 and 25 °C). It was suggested that the steam-treated CeO〈sub〉2〈/sub〉-ZrO〈sub〉2〈/sub〉/ACFs could be considered as a promising adsorbent towards wastewater treatment.〈/p〉〈/div〉
〈h5〉Graphical abstract〈/h5〉
〈div〉〈p〉〈figure〉〈img src="https://ars.els-cdn.com/content/image/1-s2.0-S0927775719300093-ga1.jpg" width="234" alt="Graphical abstract for this article" title=""〉〈/figure〉〈/p〉〈/div〉
Print ISSN:
0927-7757
Electronic ISSN:
1873-4359
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
