Abstract
Abstract
The synthesized biochars derived from sawdust (SD) SD ozone (SDO) biochar, purified SD (PSD) biochar, and sonicated SD (SSD) biochar, which was employed in the confiscation of methylene blue (MB) dye ion, were characterized employing “Brunauer–Emmett–Teller (BET), scanning electron microscope (SEM), Fourier Transform Infrared (FTIR), and Thermal gravimetrical analysis (TGA).” The impact of various factors, such as pH, biochar dosage, and initial concentration, on MB dye sequestration, was tested in this study. It was found that the biosorption of MB dye to the various biochars was dependent on the solution pH, with optimum confiscation of MB observed at pH 12 for all biochars. Pseudo-second-order (PSO), Freundlich (FRH)- (SDO and SSD biochars), and Langmuir (LNR)- (PSD biochar) models were used to best describe the biosorption process of MB dye to various biochars. Based on the LNR model fitting to the experimental data, the optimum sorption capacities obtained using SDO, SSD, and PSD biochars were 200, 526, and 769 mg/g, respectively. Electrostatic interaction and hydrogen bonding played an important role in the interaction mechanism between the various biochars and MB dye. Hence, these studied SDO, PSD, and SSD biochars prepared from cheap, easily accessible, biodegradable, and non-hazardous agro-waste materials can be effectively used for the removal, treatment, and management of MB dye as well as other industrial effluents before their disposal into the environment.
Funder
Science and Technology Development Fund
National Institute of Oceanography & Fisheries
Publisher
Springer Science and Business Media LLC
Subject
Renewable Energy, Sustainability and the Environment
Reference90 articles.
1. El Nemr A (2010) Impact, monitoring and management of environmental pollution in Pollution Science, Technology and Abatement Series. Nova Science Publishers, Inc. Hauppauge New York, USA, pp. 638
2. El Nemr A (2011) Environmental pollution and its relation to climate change in Pollution Science, Technology and Abatement Series. Nova Science Publishers, Inc. Hauppauge New York, USA, pp. 694
3. El-Nemr MA, Aigbe UO, Hassaan MA, Ukhurebor KE, Ragab S, Onyancha RB, Osibote OA, El Nemr A (2022) The use of biochar-NH2 produced from watermelon peels as a natural adsorbent for the removal of Cu(II) ion from water. Biomass Convers Biorefin. https://doi.org/10.1007/s13399-022-02327-1
4. Ukhurebor KE, Aigbe UO, Onyancha RB, Nwankwo W, Osibote OA, Paumo HK, Ama OM, Adetunji CO, Siloko IU (2021) Effect of hexavalent chromium on the environment and removal techniques: a review. J Environ Manag 280:111809
5. El Nemr A, Hassaan MA, Madkour FF, Idris AM, Said TO, Sahlabji T, Alghamdi MM, El-Zahhar AA (2021) Advanced oxidation of AY-11 dye effluent: detoxification and degradation mechanism. Toxin Rev 40(4):1472–1480