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Catalytic thiolation-depolymerization-like decomposition of oxyphenylene-type super engineering plastics via selective carbon-oxygen main chain cleavages.
Commun Chem
February 2024
Interdisciplinary Research Center for Catalytic Chemistry (IRC3), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki, 305-8565, Japan.
As the effective use of carbon resources has become a pressing societal issue, the importance of chemical recycling of plastics has increased. The catalytic chemical decomposition for plastics is a promising approach for creating valuable products under efficient and mild conditions. Although several commodity and engineering plastics have been applied, the decompositions of stable resins composed of strong main chains such as polyamides, thermoset resins, and super engineering plastics are underdeveloped.
View Article and Find Full Text PDFCoagulation/co-catalytic membrane integrated system for fouling-resistant and efficient water purification.
Water Res
February 2024
CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, PR China; Sustainable Energy and Environmental Materials Innovation Center, Suzhou Institute for Advanced Research, USTC, Suzhou 215123, PR China. Electronic address:
Low-pressure catalytic membranes allow efficient rejection of particulates and simultaneously removing organics pollutant in water, but the accumulation of dissolved organic matters (DOM) on membrane surface, which cover the catalytic sites and cause membrane fouling, challenges their stable operation in practical wastewater treatment. Here we propose a ferric salt-based coagulation/co-catalytic membrane integrated system that can effectively mitigate the detrimental effects of DOM. Ferric salt (Fe) serving both as a DOM coagulant to lower the membrane fouling and as a co-catalyst with the membrane-embedded MoS nanosheets to drive perxymonosulfate (PMS) activation and pollutant degradation.
View Article and Find Full Text PDFApplication of functional metal anionic Lewis acid ionic liquids in the alkylation of chlorobenzene/SOCl.
RSC Adv
April 2023
Department of Safety, Chemistry and Biomedical Laboratory Sciences, Faculty of Engineering and Science, Western Norway University of Applied Sciences (HVL) 5063 Bergen Norway
4,4'-Dichlorodiphenyl sulfoxide is the main raw material for the manufacture of polysulfone, polyether sulfone and other engineering plastics. It is also an intermediate for medicines, dyes and pesticides, which has been widely utilized in engineering plastics, fine chemicals and other fields. The alkylation of chlorobenzene with thionyl chloride can give 4,4'-dichlorodiphenyl sulfoxide as a product using Lewis acidic ionic liquids.
View Article and Find Full Text PDFToward MOF@Polymer Core-Shell Particles: Design Principles and Potential Applications.
Acc Chem Res
February 2023
School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Shanghai, China 201210.
ConspectusCompositing MOFs with polymers brings out the best properties of both worlds. The solubility and excellent mechanical properties of polymers endow the brittle, powdery MOFs with enhanced processability, thereby enriching their functions as solid sorbents, filters, membranes, catalysts, drug delivery vehicles, and so forth. While most MOF-polymer composites are random mixtures of two materials with little control over their fine structures, MOF@polymer core-shell particles have recently emerged as a new platform for precise composite design.
View Article and Find Full Text PDFVanadium Oxide Nanosheet-Infused Functionalized Polysulfone Bipolar Membrane for an Efficient Water Dissociation Reaction.
ACS Appl Mater Interfaces
February 2023
Department of Chemistry, Indian Institute of Technology, Guwahati, Assam781039, India.
A high-performing bipolar membrane (BPM) was fabricated using functionalized polysulfones as the ion-exchange layers (IELs) and two-dimensional (2D) VO-nanosheets blended with polyvinyl alcohol (PVA) as the water dissociation catalyst (WDC) at the interfacial layer. The composite BPM showed a low resistance of 0.79 Ω cm, confirming the good contact between the IEL and WDC, much needed for the ionic conductivity.
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