Study survey of cupric oxide nanoparticles in removal efficiency of ciprofloxacin antibiotic from aqueous solution: adsorption isotherm study

Abstract

a b s t r ac tAntibiotics are considered among the major pollutants in water environments. The antibiotics along with the sewage, pharmaceutical industries water waste, veterinary clinics and hospital sewages noticeably enter into the water resources and the environment. The objective of this study was to investigate ciprofloxacin removal efficiency from aqueous solutions by using cupric oxide nanoparticles. The effects of pH (3-11), CuO nanoparticles dosage (0.01, 0.03, 0.05, 0.07, 0.09 and 0.1 g/L), contact time (15, 30, 45, 60, 75, 90 and 120 min) and the initial antibiotic concentration (10, 25, 50, 100, 150 and 200 mg/L) were assessed on ciprofloxacin removal efficiency in laboratory. Under optimal conditions of concentration 10 mg/L, pH = 7, CuO nanoparticles dosage 0.1 g/L and contact time 60 min, the removal efficiency was 77% and q m of the CuO nanoparticles was 105 mg/g. The process of ciprofloxacin adsorption on CuO nanoparticles was depended on Freundlich adsorption isotherm more than other isotherms (Langmuir, Temkin and Harkins-Jura). On the basis of the obtained results, it can be concluded that CuO nanoparticles adsorption process can be used as a novel method for treating wastewater contaminated with drug sources.

Application of response surface methodology in the degradation of Reactive Blue 19 using H2O2/MgO nanoparticles advanced oxidation process

“…The initial and final RB19 concentrations remaining in solutions were analyzed by a UV-visible recording spectrophotometer (Shimadzu Model: CE-1021-UK) at a wavelength of maximum absorbance, λ max = 595 nm. Percentage of decolorization was calculated as follows [32,33]:…”

Adsorption of arsenic (V) from aqueous solution using modified saxaul ash: isotherm and thermodynamic study

“…In Temkin model, the surface absorption theory was corrected considering possible reactions between adsorbent-adsorbent and adsorbent-adsorbate. This model can be expressed by the following equation (Ahmadi et al 2017):…”

Efficiency comparison of advanced oxidation processes for ciprofloxacin removal from aqueous solutions: Sonochemical, sono-nano-chemical and sono-nano-chemical/persulfate processes

“…The initial and final CIP concentrations remaining in the solutions were analyzed by a UV-visible recording spectrophotometer (Shimadzu Model: CE-1021-UK). The CIP concentration was determined at a wavelength of maximum absorbance (λ max ): 275 nm [14]. The pH was measured using a MIT65 pH meter.…”

“…Several methods have been introduced for antibiotics removal from aqueous environments which include nanofiltration [11], the use of nanotubes [12], electrocoagulation [13], adsorption [14,15], photo catalysis [16], sonochemical (US) [17,18] Efficiency comparison of advanced oxidation processes for ciprofloxacin removal from aqueous solutions: Sonochemical, sono-nano-chemical and sono-nano-chemical/persulfate processes processes. The advanced oxidation process (AOP) is one of the most commonly used methods for the removal of pollutants because of its simplicity, low cost and high efficiency [19].…”