It appears you don't have support to open PDFs in this web browser. To view this file, Open with your PDF reader
Abstract
Eco-friendly and renewable composite beads were constructed for efficient adsorptive removal of Cr (VI) ions. Attapulgite (ATP) clay decorated with cetylpyridinium bromide (CPBr) was impregnated into cellulose acetate (CA) beads, which were formulated through a simple and cost-effective solvent-exchange approach. FTIR, XRD, SEM, Zeta potential, and XPS characterization tools verified the successful formation of ATP–CPBr@CA beads. The composite beads displayed a spherical and porous shape with a positively charged surface (26.6 mV) at pH 2. In addition, higher adsorption performance was accomplished by ATP–CPBr@CA composite beads with ease of separation compared to their components. Meanwhile, equilibrium isotherms pointed out that the Langmuir model was optimal for describing the adsorption process of Cr (VI) with a maximal adsorption capacity of 302 mg/g. Moreover, the D–R isotherm model verified the physical adsorption process, while adsorption data obeyed the pseudo-second-order kinetic model. Further, XPS results hypothesized that the removal mechanism involves adsorption via electrostatic interactions, redox reaction, and co-precipitation. Interestingly, the ATP–CPBr@CA composite beads reserved tolerable adsorption characteristics with a maximum removal present exceeding 70% after reuse for seven successive cycles, proposing its feasible applicability as a reusable and easy-separable candidate for removing heavy metals from aquatic bodies.
You have requested "on-the-fly" machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Show full disclaimer
Neither ProQuest nor its licensors make any representations or warranties with respect to the translations. The translations are automatically generated "AS IS" and "AS AVAILABLE" and are not retained in our systems. PROQUEST AND ITS LICENSORS SPECIFICALLY DISCLAIM ANY AND ALL EXPRESS OR IMPLIED WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES FOR AVAILABILITY, ACCURACY, TIMELINESS, COMPLETENESS, NON-INFRINGMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Your use of the translations is subject to all use restrictions contained in your Electronic Products License Agreement and by using the translation functionality you agree to forgo any and all claims against ProQuest or its licensors for your use of the translation functionality and any output derived there from. Hide full disclaimer
Details
1 Alexandria University, Chemistry Department, Faculty of Science, Alexandria, Egypt (GRID:grid.7155.6) (ISNI:0000 0001 2260 6941)
2 City of Scientific Research and Technological Applications (SRTA-City), Polymeric Materials Research Department, Advanced Technology and New Materials Research Institute (ATNMRI), New Borg El-Arab City, Egypt (GRID:grid.420020.4) (ISNI:0000 0004 0483 2576)
3 City of Scientific Research and Technological Applications (SRTA-City), Fabrication Technology Research Department, Advanced Technology and New Materials Research Institute (ATNMRI), New Borg El-Arab City, Egypt (GRID:grid.420020.4) (ISNI:0000 0004 0483 2576)
4 Alexandria University, Chemistry Department, Faculty of Science, Alexandria, Egypt (GRID:grid.7155.6) (ISNI:0000 0001 2260 6941); University of Technology and Applied Sciences, Department of Engineering, College of Engineering and Technology, Ibra, 400, Sultanate of Oman (GRID:grid.7155.6)