The formation of phase pure magnetically separable α-FeO and α-FeO/rGO nanostructures were achieved through a simple hydrothermal technique. The properties of synthesized materials were investigated through different analytical techniques. The formation of phase pure FO and FO/rGO nanostructures were confirmed by XRD analysis with crystallite size of about ∼42 nm and ∼65 nm, respectively. The morphological analysis reveals the formation of sphere-like nanoparticles with high agglomeration. The UV-DRS analysis clearly shows the enhanced visible-light activity of FO/rGO nanoparticles. The BET analysis revealed the mesoporous property of FO/rGO nanocomposite. The enhancement in the photoinduced charge transfer process is observed after including rGO nanoparticles with FO. The photocatalytic efficiency of nanomaterials was analyzed using tetracycline and ibuprofen as model organic pollutants under white LED irradiation. The enhanced photocatalytic degradation ability of FO/rGO nanocomposite is studied against both tetracycline and ibuprofen molecules.
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http://dx.doi.org/10.1016/j.envres.2022.113301 | DOI Listing |
ACS Omega
November 2024
Universidade Tecnológica Federal do Paraná (UTFPR), Dois Vizinhos Campus, Estrada para Boa Esperança, km 04, 85660-000 Dois Vizinhos, Parana, Brazil.
Water Environ Res
November 2024
Department of Civil, Architectural and Environmental Engineering, The University of Texas at Austin, Austin, TX, USA.
This review presents a comprehensive analysis of current research on biological treatment processes for removing pharmaceutical compounds (PhCs) from wastewater. Unlike previous studies on this topic, our study specifically delves into the effectiveness and drawbacks of various treatment approaches such as traditional wastewater treatment facilities (WWTP), membrane bioreactors (MBRs), constructed wetlands (CW), and moving bed biofilm reactors (MBBR). Through the examination and synthesis of information gathered from more than 200 research studies, we have created a comprehensive database that delves into the effectiveness of eliminating 19 particular PhCs, including commonly studied compounds such as acetaminophen, ibuprofen, diclofenac, naproxen, ketoprofen, indomethacin, salicylic acid, codeine, and fenoprofen, amoxicillin, azithromycin, ciprofloxacin, ofloxacin, tetracycline, atenolol, propranolol, and metoprolol.
View Article and Find Full Text PDFJAMA
December 2024
University of Wisconsin School of Medicine and Public Health, Madison.
Importance: In the US, peptic ulcer disease affects 1% of the population and approximately 54 000 patients are admitted to the hospital annually for bleeding peptic ulcers.
Observations: Approximately 10% of patients presenting with upper abdominal pain in a primary care setting have a peptic ulcer as the cause of their symptoms. The principal causes of peptic ulcer disease are Helicobacter pylori infection, which affects approximately 42% of patients with peptic ulcer disease, and aspirin or nonsteroidal anti-inflammatory drug (NSAID) use, which are etiologic factors in approximately 36% of people with peptic ulcer disease.
Bioresour Technol
December 2024
International Centre for Bamboo and Rattan, Beijing 100102, China; Key Laboratory of NFGA/Beijing for Bamboo & Rattan Science and Technology, Beijing 100102, China. Electronic address:
This work developed a method using bamboo shoot shells as raw material to produce Fe-modified ACs combining self-activation and chemical modification. Adding small amounts (0.5-5 %) of KFeO accelerated the pyrolysis process and CO release, and reduced the activation energy and temperature of self-activation reaction.
View Article and Find Full Text PDFAntibiotics (Basel)
August 2024
Research Department, Biological and Soil Faculty, Irkutsk State University, Irkutsk 664003, Russia.
Pollution by active ingredients is one of the most significant and widespread forms of pollution on Earth. Medicines can have a negative impact on ecosystems, and contamination can have unpredictable consequences. An urgent and unexplored task is to study the Lake Baikal ecosystem and its organisms for the presence of trace concentrations of active pharmaceutical ingredients.
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