Removal of contaminants of emerging concern by metal-organic framework nanoadsorbents: a review.

Enhancement of ciprofloxacin sorption on chitosan/biochar hydrogel beads

Adsorption of Ciprofloxacin from Water: A Comprehensive Review

Hydrothermal synthesis of magnetic sludge biochar for tetracycline and ciprofloxacin adsorptive removal.

ZIF-67 derived hollow cobalt sulfide as superior adsorbent for effective adsorption removal of ciprofloxacin antibiotics

A magnetic carbon composite, Fe3O4/C composite, was fabricated by one-step hydrothermal synthesis, modified by heat treatment under an inert atmosphere (N2), and then used as an adsorbent for ciprofloxacin (CIP) removal. Conditions for the modification were optimized according to the rate of CIP removal. The adsorbent was characterized by Fourier transform infrared spectroscopy, X-ray diffraction measurements, vibrating-sample magnetometry, scanning electron microscopy, transmission electron microscopy, and N2 adsorption/desorption isotherm measurements. The results indicate that the modified adsorbent has substantial magnetism and has a large specific area, which favor CIP adsorption. The effects of solution pH, adsorbent dose, contact time, initial CIP concentration, ion strength, humic acid and solution temperature on CIP removal were also studied. Our results show that all of the above factors influence CIP removal. The Langmuir adsorption isotherm fits the adsorption process well, with the pseudo second-order model describing the adsorption kinetics accurately. The thermodynamic parameters indicate that adsorption is mainly physical adsorption. Recycling experiments revealed that the behavior of adsorbent is maintained after recycling for five times. Overall, the modified magnetic carbon composite is an efficient adsorbent for wastewater treatment.

Modification of a magnetic carbon composite for ciprofloxacin adsorption.

Transformation of alkali and alkaline-earth metals during coal oxy-fuel combustion in the presence of SO2 and H2O

The invention relates to a preparation method of a cigarette filter additive for removing NO. The additive aims at the containing of harmful substances comprising sulfur dioxide, formaldehyde, nitrogen monoxide in cigarette smoke. The cigarette filter additive is prepared by adopting active carbon fiber felts as a raw material and copper nitrate and cerium nitrate as active component precursors, adopting ultrasonic immersion and carrying out microwave roasting under the protection of nitrogen. The preparation method has the advantages of advanced process and accurate and complete data, the above product obtained in the invention is a black slice, the thickness of the slice is not greater than 1mm, each of the length and the width of the slice is not greater than 10mm, the surface of the active carbon fiber felts has -C=C, -OH and -C-O organic functional groups, and the active components are uniformly dispersed as nanoparticles, wherein the copper element exists as crystal Cu2O, metallic element Cu and amorphous CuO, a relative atom percentage ratio of Cu to low valence copper component is 42.1:57.9, cerium exists as Ce and Ce , and a relative atomic content ratio of Ce /Ce is 55.5/44.5.The cigarette filter additive has a good cigarette smoke filtering effect, and makes the NO removal rate reach 71.9% and the SO2 removal rate reach 60%.

Preparation method of cigarette filter additive for removing NO

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Modification of a magnetic carbon composite for ciprofloxacin adsorption.

Transformation of alkali and alkaline-earth metals during coal oxy-fuel combustion in the presence of SO2 and H2O

Preparation method of cigarette filter additive for removing NO