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- Title
Effect of Initial pH on the Removal of Textile Dye RB19 from Water by Lidnocellulosic-Al<sub>2</sub>O<sub>3</sub>.
- Authors
Velinov, N.; Najdanović, S.; Radović, M.; Mitrović, M.; Kostić, M.; Bojić, D.; Bojić, A.
- Abstract
The chemically modified lignocellulosic biomass with an inorganic oxide (Al2O3) was tested as a new sorbent for the removal of textile dye reactive blue 19 (RB19) from aqueous solution in batch conditions. As a starting biomass oak woodchips, with lignocellulosic structure mainly consisting of 46% cellulose and 24% of lignin, were used. The removal of pollutants from water by sorbents is significantly affected by the pH value of the solution, thereby changing the surface charge of the sorbent and the chemistry of the pollutants. In order to define optimal conditions for sorption of RB19 from water, by lignocellulosic-Al2O3 biosorbent (LC-Al2O3), effects of initial pH were studied in range from 2.0 up to 10.0. An increase in the solution pH from 2 to 5 led to a slightly decrease of removal efficiency of RB19 from 99.91 to 97.90%, and with further increase up to 10 considerably decrease to 2.11%. The highest removal efficiency of RB19 was observed at pH 2. In addition to the high removal efficiency, LC-Al2O3 biosorbent possesses other benefits, like mechanical stability, ease of synthesis, cost-effectiveness, biocompatibility and environmental-friendliness, which all makes it a promising material for the removal of anionic pollutants from water.
- Subjects
LIGNOCELLULOSE; TEXTILE dyeing; BIOMASS
- Publication
Bulletin of the Chemists & Technologists of Bosnia & Herzegovina / Glasnik Hemičara i Tehnologa Bosne i Hercegovine, 2018, p83
- ISSN
0367-4444
- Publication type
Abstract