We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Exploring the Potential of Pennisetum glaucum Composite for the Removal of Cationic and Anionic Dyes at Natural pH for Sustainable Waste Water Remediation.
- Authors
Yadav, Sarita; Yadav, Aruna; Sharma, Nishita; Sharma, Ashok K.; Kumar, Surender
- Abstract
Multiple contaminants are present in industrial effluents, affecting the quality of water treatment operations. As a result, understanding the outcome of the multicomponent adsorption systems is critical for developing an effective decontamination technique. In this study, a novel formulation comprising of two composites—Pennisetum glaucum (PG) biomass–functionalized carbon nanotubes (CNT), i.e., (PG + CNT), and cetyltrimethylammonium bromide (CTAB) treated Pennisetum glaucum biomass–functionalized carbon nanotubes, i.e., (PG + CNT + CTAB)—was synthesized and utilized for the adsorption of two anionic dyes, i.e., Aniline blue 93 (AB) and Congo red (CR), and two cationic dyes, Crystal violet (CV) and Malachite green (MG), from their individual and multi-adsorptive systems. The influence of different operational factors like pH, adsorbent dosage, and dye solution concentration on the adsorption process was evaluated by employing the Box-Behnken experimental design (BBD). The kinetics of AB, CR, CV, and MG biosorption were better fitted to the pseudo-2nd-order model. The unmodified and extended Langmuir models were suitable for evaluating the experimental data of individual and multicomponent systems. Meanwhile, the extended or modified Langmuir isotherm model confirmed the synergistic behavior of a single dye species over other dye species adsorption on composite surface in their respective adsorptive setups for all multicomponent systems. The thermodynamic observations indicate that the removal of cationic and anionic dyes was feasible. Overall, the synthesized composite is a biosorbent that is safe for the environment and can be used to adsorb anionic and cationic dyes from individual and multi-component dye-containing effluents at a natural pH.
- Subjects
BASIC dyes; NATURAL dyes &; dyeing; SEWAGE; MALACHITE green; INDUSTRIAL wastes; PEARL millet; DYE-sensitized solar cells; DECONTAMINATION (From gases, chemicals, etc.)
- Publication
Water, Air & Soil Pollution, 2024, Vol 235, Issue 4, p1
- ISSN
0049-6979
- Publication type
Article
- DOI
10.1007/s11270-024-07006-7