A novel Fe3O4/graphene oxide/citrus peel-derived bio-char based nanocomposite with enhanced adsorption affinity and sensitivity of ciprofloxacin and sparfloxacin

Optimization of Cadmium Adsorption by Magnetic Graphene Oxide Using a Fractional Factorial Design

“…In this figure, the characteristic peak at 1725 cm −1 is the characteristic peak of C = O in carboxyl and carbonyl groups, the characteristic peak at 1387 cm −1 is the stretching vibration peak of C-OH in carbonyl groups, the characteristic peak at 1050 cm −1 is the stretching vibration peak of C-O-C in epoxy groups, and the characteristic peak at 560 cm −1 is the characteristic peak of Fe-O in Fe 3 O 4 . The above analysis results show that there are still a variety of active groups on the surface of MGO, and Fe 3 O 4 nanoparticles are also loaded successfully onto the surface of GO [ 24 ].…”

“…Usually, the effects of different factors on the adsorption process are different [ 24 , 25 , 26 ]. Conventional studies on optimizing adsorption conditions alone separately would take a long time.…”

Emerging pollutants—Part II: Treatment

“…To improve the adsorption capacity of biochar, Zhou, Zeng, et al (2019), Zhou, Cao, et al (2019), Zhou, Zhao, et al (2019) synthesized a Fe 3 O 4 /graphene oxide/citrus peel-derived biochar-based nanocomposite (mGOCP) with a high surface area of 1,556 cm 2 /g. The effect of mGOCP on the removal of ciprofloxacin and sparfloxacin in water was investigated.…”

“…Within 4 hr of UV-B radiation using BiOCl with flower-like microstructure, the degradation rate of bisphenol A can reach 80%. Zhou, Zeng, et al (2019), Zhou, Cao, et al (2019), Zhou, Zhao, et al (2019)) synthesized the modified carbon nitride (CN) photocatalyst by copolymerization of L-cysteine and dicyandiamide, and they studied the effect of modified CN on the degradation of sulfamethazine in water under visible light. From their results, the degradation rate of sulfamethazine by modified CN was 0.1062 min −1 , while that by unmodified CN was only 0.0086 min −1 .…”

“…Effluent organic matter (EfOM) is considered to play an important role in the photo-degradation of EPs in the effluent. In view of this, Zhou, Zeng, et al (2019), Zhou, Cao, et al (2019), Zhou, Zhao, et al (2019)) studied the influence of fenofibrate acid (FNFA) on the photo-degradation of bezafibrate in wastewater. It was found that the presence of FNFA can increase the degradation rate of bezafibrate under simulated sunlight.…”