title: Photocatalytic TMO-NMs adsorbent: Temperature-Time dependent Safranine degradation, sorption study validated under optimized effective equilibrium models parameter with standardized statistical analysis.
abstract: In this paper, chemically synthesized copper oxide nanoparticles (CuO-NPs), were employed for two processes: one is photocatalytic degradation and second one adsorption for the sorption of safranine (SA) dye in an aqueous medium at pH = 12.01. The optimized analytes amount (nano-adsorbent = 0.10 g, conc. range of SA dye 56.13 ppm to 154.37 ppm, pH = 12.01, temperature 303 K) reached to equilibrium point in 80 min, which acquired for chemical adsorption-degradation reactions. The degredated SA dye data's recorded by UV-visible spectroscopy for the occurrence of TMO-NMs of CuO-NPs at anticipated period of interval. The feasible performance of CuO-NPs was admirable, shows good adsorption capacity qm = 53.676 mg g-1and most convenient to best fitted results establish by linear regression equation, corresponded for selected kinetic model (pseudo second order (R2= 0.9981), equilibrium isotherm models (Freundlich, Langmuir, Dubnin-Radushkevich (D-R), Temkin, H-J and Halsey), and thermodynamic parameters (∆H° = 75461.909 J mol-1, ∆S° = 253.761 J mol-1, ∆G° = -1427.93 J mol-1, Ea = 185.142 J mol-1) with error analysis. The statistical study revealed that CuO-NPs was an effective adsorbent certified photocatalytic efficiency (η = 84.88%) for degradation of SA dye, exhibited more feasibility and good affinity toward adsorbate, the sorption capacity increases with increased temperature at equilibrium point.
authors.affiliation: Zoology Department, College of Science King Saud University, Riyadh 11451, Saudi Arabia.|Al-Jeraisy, Chair for DNA Research, Department of Zoology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
authors.forename: Rizwan
authors.initials: R
authors.lastname: Wahab
authors.affiliation: Department of Chemistry, Aligarh Muslim University, Aligarh U.P. 202002, India.
authors.forename: Farheen
authors.initials: F
authors.lastname: Khan
authors.affiliation: Plasma Bioscience Research Center, Kwangwoon University, Seoul 139701, South Korea.
authors.forename: Nagendra Kumar
authors.initials: NK
authors.lastname: Kaushik
authors.affiliation: Dept. of Ag. Microbiology, AMU, Aligarh, India.|Baba Gulam Shah Badshah University, Rajouri, J&K, India.
authors.forename: Javed
authors.initials: J
authors.lastname: Musarrat
authors.affiliation: Zoology Department, College of Science King Saud University, Riyadh 11451, Saudi Arabia.
authors.forename: Abdulaziz A
authors.initials: AA
authors.lastname: Al-Khedhairy