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Chemosphere
Department of Chemical Engineering, North Tehran Branch, Islamic Azad University, PO Box 1651153311, 19585/936, Tehran, Iran. Electronic address:
Published: May 2020
Contaminated air in battery recycling halls threatens the health of factory workers. In this work, a new 3D hydrogel was designed in a simulated salon with an innovative rotary module. The Pb(II), Fe(III) and SO was adsorbed from air. Solar energy was transferred by wind to the factory hall and absorbed moisture was evaporated. The hydrophilicity, stability in water and storage of Pb(II) and Fe(III) in the hydrogel were optimized. Brunauer-Emmett-Teller (BET) theory, Field emission scanning electron microscope (FE-SEM), X-ray diffraction (XRD) analysis and Fourier transform infrared spectroscopy (FT-IR) were employed to characterize and analyze the 3D hydrogel. The collector was able to quickly raise the wind temperature to 44 °C. In each cycle, in average 60% of air moisture was absorbed on the 3D hydrogel. The evaporation rate was more than 1.4 kg m h. The efficiency of ions removal in each cycle was 82%. In the 0.68 m min of wind flow the temperature was 43.3 °C and evaporation was done in a shorter time.
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http://dx.doi.org/10.1016/j.chemosphere.2019.125725 | DOI Listing |
Int J Mol Sci
November 2024
School of Health & Medical Sciences, University of Economics and Human Sciences in Warsaw, Okopowa 59, 01-043 Warsaw, Poland.
We discussed and summarized the latest data from the global literature on the action of polyphenolic antioxidants and their metal complexes. The review also includes a summary of the outcomes of theoretical computations and our many years of experimental experience. We employed various methods, including spectroscopy (FT-IR, FT-Raman, NMR, UV/Vis), X-ray diffraction, thermal analysis, quantum calculations, and biological assays (DPPH, ABTS, FRAP, cytotoxicity, and genotoxicity tests).
View Article and Find Full Text PDFACS Sens
October 2024
Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States.
Heavy metal contamination is an increasing global threat to human and environmental health, particularly in resource-limited areas. Traditional platforms for heavy metal detection are labor intensive and expensive and require lab facilities. While paper-based colorimetric sensors offer a simpler approach, their sensitivity limitations prevent them from meeting legislative requirements for many metals.
View Article and Find Full Text PDFEnviron Pollut
November 2024
Key Lab of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China. Electronic address:
Hydrogel adsorbents are promising tools for reducing heavy metals' bioavailability in contaminated soil. However, their practical feasibility remains limited by the low stability, inefficient removal efficiency, and potential secondary pollution. Optimizing the adsorption operation and the functional properties of hydrogel adsorbents could eliminate this method's drawbacks.
View Article and Find Full Text PDFFront Chem
May 2024
Guangxi Key Laboratory of Green Chemical Materials and Safety Technology, College of Petroleum and Chemical Engineering, Beibu Gulf University, Qinzhou, China.
Mitochondria are the energy factories of cells and are important targets for the development of novel tumour treatment strategies owing to their involvement in processes such as apoptosis, oxidative stress, and metabolic programming. Thiosemicarbazone metal complexes target mitochondria and reduce mitochondrial membrane potential. The breakdown of mitochondrial membrane potential is a key event in the early stage of apoptosis, which releases cytochrome C and other pro-apoptotic factors, activates the intracellular apoptotic enzyme cascade, and eventually causes irreversible apoptosis of tumour cells.
View Article and Find Full Text PDFEnviron Sci Pollut Res Int
May 2024
Department of Chemistry, Birla Institute of Technology, Mesra, Ranchi, 835215, India.
Metal-organic frameworks (MOFs) are a prominent class of materials due to their large surface area and customized structures. This gives them specificity and high adsorption capacity while they lack mechanical strength and reusability. Integrating MOFs with polysaccharide matrix may retain MOF characteristics along with imparting structural integrity.
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