Nucleophilic 1,2-aminothiol compounds readily reduce typically-insoluble elemental sulfur to polysulfides in both water and nonpolar organic solvents. The resulting anionic polysulfide species are stabilized through hydrogen-bonding interactions with the proximal amine moieties. These interactions can facilitate sulfur transfer to alkenes.
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http://dx.doi.org/10.1039/d1cc05242j | DOI Listing |
ACS Appl Energy Mater
December 2024
Department of Mathematics, Physics and Electrical Engineering, Northumbria University, Newcastle-upon-Tyne NE1 8QH, United Kingdom.
The chalcogenide perovskite BaZrS has strong visible light absorption and high chemical stability, is nontoxic, and is made from earth-abundant elements. As such, it is a promising candidate material for application in optoelectronic technologies. However, the synthesis of BaZrS thin-films for characterization and device integration remains a challenge.
View Article and Find Full Text PDFEnviron Monit Assess
December 2024
Environmental Technology Division, CSIR - National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram, Kerala, India, 695019.
The study presents findings from physico-chemical and elemental analyses of fresh faecal matter from a residential apartment in Thiruvananthapuram, Kerala, India. Samples were taken every 8-10 days over 4 months to account for variability and establish baseline data. The study also examines the influence of dietary patterns and toilet cleaners on faecal sludge properties.
View Article and Find Full Text PDFWater Res X
January 2025
MOE Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, Nankai University, No. 38 Tongyan Road, Jinnan District, Tianjin 300350, PR China.
Hydrophobic organic pollutants in aqueous environments are challenging to biodegrade due to limited contact between microorganisms, the pollutants and the electron acceptor, particularly under anaerobic or anoxic conditions. Here, we propose a novel strategy that uses inexpensive, dual-function elemental sulfur (S) to enhance biodegradation. Using petroleum hydrocarbons as the target pollutants, we demonstrated that hydrophobic and nonpolar S° can concentrate hydrocarbons while simultaneously serving as an electron acceptor to enrich hydrocarbon-degrading bacteria.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
December 2024
Huazhong University of Science and Technology - Main Campus: Huazhong University of Science and Technology, Materials Science and Engineering, CHINA.
Sulfurized polyacrylonitrile (SPAN) presents an opportunity to replace elemental sulfur as a "shuttle-free" cathode for secondary Li-S batteries, which can be an ideal choice for stationary energy storage due to its abundance, low cost, and sustainability. The electrolyte options for the state-of-the-art SPAN batteries have been limited to the flammable carbonate and ether ones, which raises safety concerns. Here, we explored the use of a non-flammable acetonitrile (AN) electrolyte for SPAN battery for the first time and identified the irreversible cleavage of C-S bonds of SPAN as the main reason for the failure of SPAN in AN electrolyte.
View Article and Find Full Text PDFMar Pollut Bull
December 2024
Department of Earth and Marine Sciences, University of Palermo, via Archirafi 18, 90123 Palermo, Italy; National Biodiversity Future Center (NBFC), Piazza Marina 61, 90133 Palermo, Italy; CoNISMa, National Interuniversity Consortium for Marine Sciences, Piazzale Flaminio 9, 00196 Roma, Italy.
Volcanic emissions in shallow vents influence the biogeochemistry of the sedimentary compartment, creating marked abiotic gradients. We assessed the spatial dynamics of the sediment compartment, as for the composition and origin of organic matter and associated prokaryotic community, in a volcanic shallow CO vent (Vulcano Island, Italy). Based on elemental (carbon, nitrogen content and their ratio) and isotopic composition (δC, δN and δS), the contribution of vent-derived organic matter (microbial mats) to sedimentary organic matter was high close to the vent, while the marine-derived end-members (seagrasses) contributed highly at increasing distance.
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