| Autor: |
Alam, Sultan, Ullah, Rahat, ur Rahman, Najeeb, Ilyas, Muhammad, Ullah, Shakir, Zahoor, Muhammad, Umar, Muhammad Naveed, Ullah, Riaz, Ali, Essam A. |
| Předmět: |
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| Zdroj: |
Desalination & Water Treatment; 11/30/2023, Vol. 313, p186-195, 10p |
| Abstrakt: |
Metanil yellow and Rhodamine B are the emerging dyes having applications in a number of sectors. As with every dye during their utilizations, some of its portion is lost into environment in effluents leading to numerous health complications in animals and plant. Herein, mono-metallic Cu and bimetallic Cu-Ni nanoparticles were prepared for the efficient removal of the mentioned dyes from textile effluents. SEM, XRD, EDX and FTIR techniques were used to study their surface morphology, crystalline or amorphous nature, elemental composition and surface functionalities, respectively. The copper nanoparticles were used as adsorbent for metanil yellow adsorption whereas for rhodamine the bimetallic nanoparticles were used as adsorbent. Batch adsorption test in line with various kinetics and isotherm models were utilized to determine the adsorption parameters and underlying mechanisms. For metanil yellow the equilibrium was achieved within 30 min whereas for Rhodamine B equilibrium was reached in 12 min correspondingly when contacted with mono and bimetallic particles of copper. Best fits for the kinetics and isotherm data were respectively obtained with pseudo-second-order model and Langmuir model. The maximum adsorption capacity of Cu nanoparticles was 200 mg/g for metanil yellow whereas for Cu-Ni nanoparticles it was 416 mg/g for Rhodamine B, at 333 K. The thermodynamic studies revealed both the processes to be endothermic, spontaneous, and favorable. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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