A carbonaceous material was prepared from industrial wastes (sawdust), modified with manganese to form SW-Mn, and tested activate peroxymonosulfate (PMS) under the influence of ultrasound (US) at frequencies 40 kHz 375 kHz. This activation aimed degrade relevant antibiotic ciprofloxacin in water. SW-Mn characterized through spectroscopic, thermal, textural, electrochemical techniques. The sonocarbocatalytic system (i.e., carbocatalysis using assisted by kHz) synergistically degraded target...

The antibacterial activity of g-C3N4 and Cu-g-C3N4 was evaluated against E. coli, with their disinfection capabilities influenced by structural characteristics, photocatalytic properties, modulation under a static magnetic field. incorporation Cu2+ does not significantly affect the (210) reflection in XRD analysis, indicating that alignment aromatic layers remains stable. However, presence copper enables complete disinfection, contrast to graphitic carbon nitride, which achieves only partial...

The heterometallic optical complexes [Cu 2 Co( S , (+)cpse) 3 (H O) ] · 4H O ( 1 ) and Ni( 10H were obtained from the mononuclear copper(II) compound by addition of nickel(II) or cobalt(II) chlorides, where cpse) is acetyl amino alcohol derivative N‐[2‐hydroxy‐1( R )‐methyl‐2( )‐phenylethyl]‐N‐methylglycine. In comparison with homotrinuclear 8H reported previously, substitution a atom one ion gave place to heterotrinuclear which presents ferromagnetic‐antiferromagnetic behaviour. When...

In this work, the degradation of pharmaceutical losartan, in simulated fresh urine (which was considered because is main excretion route for compound) by sonochemistry and UVC/H2O2 individually, studied. Initially, special attention paid to degrading action processes. Then, theoretical analyses on Fukui function indices, determine electron-rich regions susceptible attacks hydroxyl radical, were performed. Afterward, ability processes mineralize losartan remove phyto-toxicity tested. It found...

Ampicillin and nafcillin antibiotics were treated by high frequency ultrasound (at 375 kHz 24.4 W). Degradations followed pseudo-first order kinetics, which constants k: 0.0323 min-1 for AMP 0.0550 NAF. Accumulation of sonogenerated hydrogen peroxide inhibition degree sonochemical removal (IDS) in presence a radical scavenger also stablished. Afterwards, was combined with UVC light (sono-photolysis), ferrous ion (sono-Fenton), plus (sono-photo-Fenton) to degrade the antibiotics. Furthermore,...

The modification of achira starch a thermoplastic biopolymer is shown. Glycerol and sorbitol, common plasticizers, were used in the molten state with organic acids such as oleic acid lactic obtaining thermodynamically more stable products. proportion starch:plasticizer was 70:30, agent added portions from 3%, 6%, 9% by weight. These mixtures obtained torque rheometer for 10 min at 130 °C. managed to efficiently promote gelatinization process increasing available polar sites towards surface...

This work considered the sonochemical degradation (using a bath-type reactor, at 375 kHz and 106.3 W L-1, 250 mL of sample) three representative halogenated pharmaceuticals (cloxacillin, diclofenac, losartan) in urine matrices. The action route process was initially established. Then, selectivity system, to degrade target simulated fresh compared with electrochemical oxidation BDD anode, 1.88 mA cm-2), UVC/H2O2 (at 60 light 500 mol L-1 H2O2). Also, treatment cloxacillin an actual sample by...

Nanoparticles (NPs) of α-MnO2 have high applicability in photoelectrochemical, heterogeneous photocatalysis, optical switching, and disinfection processes. To widen this panorama about MnO2 NPs, the formation material by laser ablation deposition dip-coating on fluorine-doped tin oxide (FTO), were considered study. The optical, spectroscopic, electrochemical characterization, evaluation antimicrobial activity, plus photocatalytic response, measured herein colloidal media deposited. For NPs...

Losartan is a highly consumed antihypertensive worldwide and commonly found in effluents of municipal wastewater treatment plants. In the environment, losartan can promote harmful effects on organisms. Thus, an option to face this pollutant by photochemical advanced oxidation processes. This dataset has two main components: 1) theoretical calculations reactivity indexes for losartan, 2) degradation throughout TiO

A carbonaceous material obtained from wood wastes (SW-Mn) was initially used for the removal of pharmaceuticals in water by a carbocatalytic system. The SW-Mn adsorbed only 41% diclofenac (DCF) and 3% valsartan (VAL). Interestingly, activated peroxymonosulfate (PMS) presented significant increase rate DCF, surpassing 90%, while VAL achieved 24% at 20 min treatment. not effective activating peroxydisulfate or hydrogen peroxide. Nevertheless, addition ultrasound waves 40 kHz to system (SW-Mn...

Antibiotics elimination by some photochemical processes involves ferric ions, but little is discussed about the fundamental aspects of complexation effects on their degradation. This study compares photodegradation two fluoroquinolones, three β-lactams, and complexes in deionized water. The complexed antibiotics were more recalcitrant than free to solar light action (the rate constants diminished 50%). To better photodegradation, other experiments considering representative cases...

The article show the date associated with work previously reported "Design, theoretical and correlation of electronic optical properties diethynylphenylthiophene as photovoltaic materials", https://doi.org/10.1016/j.molstruc.2019.127093 [1]. authors graphics tables building from p-PDT, m-PDT, o-PDT, p-ZnPDT, m -ZnPDT o-ZnPDT calculations raw date, aim to properties, which can be analyzed by reader. In this context, there exists an important number renewable energies that are substituting oil...

Advanced Oxidation Processes (AOPs) offer promising methods for disinfection by generating radical species like hydroxyl radicals, superoxide anion and hydroxy peroxyl, which can induce oxidative stress deactivate bacterial cells. Photocatalysis, a subset of AOPs, activates semiconductor using specific electromagnetic wavelengths. A novel material, Cu/Cu

Antibiotics are currently recognized as environmental pollutants. In this work, the methods involved in degradation of a β-lactam antibiotic (i.e., DXC) by treatments based on inorganic peroxides and UVC (e.g., alone, UV-C/H

The sonochemical system is highly effective at degrading hydrophobic substances but has limitations when it comes to eliminating hydrophilic compounds. This study examines the impact of organic and inorganic additives on improving degradation pollutants in water. effects adding an substance (CCl

Carbon nitrides can form coordination compounds or metallic oxides in the presence of transition metals, depending on reaction conditions. By adjusting pH to basic levels for mild synthesis with composites like g-C

A carbon-based material was synthesized using potato peels (BPP) and banana pseudo-stems (BPS), both of which were modified with manganese to produce BPP-Mn BPS-Mn, respectively. These materials assessed for their ability activate peroxymonosulfate (PMS) in the presence MnCO3 degrade acetaminophen (ACE), an emerging water contaminant. The underwent characterization spectroscopic, textural, electrochemical techniques. Manganese served a dual function: enhancing adsorption properties...