tetracycline and cyanogen

Antibiotic abuse will seriously affect the ecology and environment. Photocatalytic oxidation technology based on carbon nitride (g-C

Topics: Anti-Bacterial Agents; Catalysis; Nanotubes, Carbon; Nitriles; Tetracycline; Water

Photooxidative removal of pharmaceuticals and organic dyes is an effective way to eliminate growing micropollutants. However, photooxidation often results in byproducts as secondary hazardous substances such as phytotoxins. Herein, we found that photooxidation of common antibiotic tetracycline hydrochloride (TCH) over a metal-free 8-hydroxyquinoline (8-HQ) functionalized carbon nitride (CN) photocatalyst significantly reduces the TCH phytotoxic effect. The phytotoxicity test of photocatalytic treated TCH-solution evaluated towards seed growth of Cicer arietinum plant model endowed natural root and shoot growth. This study highlights the conceptual insights in designing of metal-free photocatalyst for environmental remediation.

Topics: Anti-Bacterial Agents; Metals; Nitriles; Oxyquinoline; Tetracycline

Topics: Anti-Bacterial Agents; Chromatography, Liquid; Environmental Pollutants; Tetracycline

It has been an urgent requirement for materials with remarkable performance in the photocatalytic degradation of organic contaminants by photocatalytic technology. Limited surface area and speedy recombination rate of photogenerated charge carriers seriously restrain the application of g-C

Topics: Free Radicals; Light; Nitriles; Tetracycline

Given that the biological treatment of antibiotic wastewater can easily induce resistant bacteria, the photocatalytic degradation of antibiotics is considered as a better method for treating antibiotic wastewater. Therefore, the ability to remove Tylosin (TYL) and Tetracycline (TC) in aqueous solution using rare earth element Tb-doped g-C

Topics: Anti-Bacterial Agents; Light; Nitriles; Tetracycline; Wastewater; Water

Upcycling waste plastics into advanced semiconductor photocatalysts provides a new strategy to reasonably and economically solve the huge amount of waste plastics, which remains challenging. Herein, a carbon nitride-based donor-acceptor (D-A) conjugated copolymer by copolymerization of dicyandiamide and terephthalic acid from discarded polyethylene terephthalate (PET) using Zn(OH)

Topics: Anti-Bacterial Agents; Catalysis; Nitriles; Plastics; Polyethylene Terephthalates; Polymers; Tetracycline

In recent years, using semiconductor photocatalysts for antibiotic contaminant degradation under visible light has become a hot topic. Herein, a novel and ingenious cadmium-doped graphite phase carbon nitride (Cd-g-C

Topics: Anti-Bacterial Agents; Cadmium; Catalysis; Graphite; Light; Nitriles; Nitrogen Compounds; Superoxides; Tetracycline

The application of graphite carbon nitride photocatalysts is hampered by their low specific surface areas, few active sites, and low photogenerated electron-hole transfer rates. Here, we report a green and controllable strategy for synthesizing kelp-like carbon nitride nanosheets through self-assembled materials prepared from melamine and trithiocyanuric acid using sonochemistry. The prepared carbon nitride nanosheets showed superior and long-lasting photocatalytic activity in hydrogen evolution and the degradation of tetracycline hydrochloride. The significantly enhanced photocatalytic performance of carbon nitride nanosheets is attributed to the curled porous nanosheet structure and the appropriate amount of O-doping. This work provides a new design strategy for preparing shape-controlled carbon nitride catalysts via a green, fast, sonochemically mediated self-assembly approach.

Topics: Graphite; Hydrogen; Kelp; Nitriles; Tetracycline

Both type II and Z schemes can explain the charge transfer behavior of the heterojunction structure well, but the type of heterojunction structure formed between bismuth vanadium oxide and carbon nitride still has not been clarified. Herein, we rationally prepared bismuth vanadium oxide with {010} and {012} facets predominantly and carbon nitride as a decoration to construct a core-shell structure with bismuth vanadium oxide wrapped in carbon nitride to ensure the same photocatalytic reaction interface. Through energy band establishment and radical species investigation, both {010} and {012} facets dominated bismuth vanadium oxide/carbon nitride composites exhibit the type II heterojunction structures rather than the Z-scheme heterojunctions. Furthermore, to investigate the effect of type II heterojunction, the photocatalytic tetracycline degradations were performed, finding that {010} facets dominated bismuth vanadium oxide/carbon nitride composite demonstrated the higher degradation efficiency than that of {012} facets, due to the higher conduction band energy. Additionally, through the free radical trapping experiments and intermediate detection of degradation products, the superoxide radical was proven to be the main active radical to decompose the tetracycline molecules. Therein, the tetracycline molecules were degraded to water and carbon dioxide by dihydroxylation-demethylation-ring opening reactions. This work investigates the effect of crystal planes on heterojunction types through two different exposed crystal planes of bismuth vanadate oxide, which can provide some basic research and theoretical support for the progressive and controlled synthesis of photocatalysts with heterojunction structures.

Topics: Anti-Bacterial Agents; Bismuth; Catalysis; Light; Oxides; Photochemical Processes; Tetracycline; Vanadium

Photocatalysis has been regarded as a kind of environmentally friendly advanced oxidation process to eliminate pollutants. In this work, Phosphorus-doped carbon nitride tube (PCN) was synthesized via a hydrothermal calcination method and applied to degrade tetracycline (TC) through combing with peroxydisulfate (PDS) under visible light irradiation. Experimental results showed that the optimized catalysts PCN-5 exhibited superior degradation performance and reusability for TC degradation. 96.4% TC could be degraded for optimal PCN-5 with 0.3 g·L

Topics: Anti-Bacterial Agents; Catalysis; Light; Nitriles; Phosphorus; Tetracycline

A novel composite electrospun fiber with high photocatalytic efficiency, good stability, strong hydrophobicity, good pollution resistance, and easy separation and recovery was synthesized. The TiO

Topics: Anti-Bacterial Agents; Catalysis; Light; Nanofibers; Nitriles; Photochemical Processes; Polyvinyls; Tetracycline; Titanium; Water Pollutants, Chemical; Water Purification

Topics: Catalysis; Cerium; Environmental Pollutants; Light; Nitriles; Rhodamines; Tetracycline

Topics: Anti-Bacterial Agents; Catalysis; Electrochemical Techniques; Light; Nanostructures; Nitriles; Photochemical Processes; Tetracycline; Titanium; Waste Disposal, Fluid; Wastewater; Water Pollutants, Chemical; Water Purification

Development of selective and sensitive methods for on-site assay of tetracycline (TC) is of great significance for public health and food safety. Herein, a valid ratiometric fluorescence strategy using g-C

Topics: Animals; Biosensing Techniques; Europium; Fluorescent Dyes; Milk; Molecular Conformation; Nitriles; Paper; Particle Size; Smartphone; Spectrometry, Fluorescence; Surface Properties; Tetracycline

Metal-free g-C

Topics: Catalysis; Light; Molecular Structure; Nanocomposites; Nitriles; Nitrogen; Particle Size; Photochemical Processes; Porosity; Surface Properties; Tetracycline

Topics: Anti-Bacterial Agents; Hydrogen-Ion Concentration; Nanostructures; Nitriles; Oxidation-Reduction; Photochemical Processes; Silver; Tetracycline; Ultrasonic Waves; Water; Zeolites

The development of efficient solar driven catalytic system for the degradation of antibiotics has become increasingly important in environmental protection and remediation. Non-noble-metal NiS and MoS

Topics: Anti-Bacterial Agents; Azo Compounds; Ciprofloxacin; Coloring Agents; Disulfides; Graphite; Light; Molybdenum; Nanocomposites; Nickel; Nitriles; Photolysis; Tetracycline