Journal
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
Volume 8, Issue 4, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jece.2020.103875
Keywords
Construction wastes; Grafting 3-aminopropyltriethoxysilane (APTES); Efficient adsorbent; Ciprofloxacin adsorption; Hospital effluent adsorption
Categories
Funding
- Coordination of Improvement of Higher Education Personnel (CAPES, Brazil)
- National Council for Scientific and Technological Development CNPq
- CAPES through the National Postdoctoral Program (PNPD)
Ask authors/readers for more resources
An inorganic sludge from construction and demolition wastes (ICDW) was grafted with APTES to obtain an inorganic-organic modified adsorbent ICDW-APTES. This adsorbent was successfully employed for ciprofloxacin (CFX) adsorption and treatment of synthetic hospital effluent. The chemical composition of ICDW presented large quantities of SiO2 and Al2O3, which supports its application for being functionalized by APTES that occurred through a chemical reaction between the surface oxygen groups of oxides with the silanol groups of the APTES. The characterization data suggested that APTES was successfully grafted on the ICDW structure. The kinetic studies showed that the general-order provided the best fitness for CFX adsorption on ICDW-APTES. Liu isotherm model presented the best fitness for the equilibrium studies, and it provided a Q(max) of 138.0 mg g(-1) at 40.0 degrees C. Electrostatic interaction was the primary mechanism involved in the adsorption process. The ICDW-APTES also exhibited a good percentage of removal of the two synthetic effluents (71.0 % and 69.0 %).
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available