A blue light mediated photochemical process using solid graphitic carbon nitride (g-CN) in ambient air/isopropanol vapour is suggested to be linked to "nanophase" water inclusions and is shown to produce approx. 50 μmol HO per gram of g-CN, which can be stored in the solid g-CN for later release for applications, for example, in disinfection or anti-bacterial surfaces.
View Article and Find Full Text PDFThe aim of the present study is to produce flexible, flame-retardant, water-resistant and biodegradable composite materials. The ultimate goal of this research is to develop simple processes for the production of bio-based materials capable of replacing non-degradable substrates in printed circuit board. Cellulose was chosen as a renewable resource, and dissolved in 1-ethyl-3-methylimidazolium acetate ionic liquid to prepare a cellulosic continuous film.
View Article and Find Full Text PDFGraphitic carbon nitride (g-CN) is known to photogenerate hydrogen peroxide in the presence of hole quenchers in aqueous environments. Here, the g-CN photocatalyst is embedded into a host polymer of intrinsic microporosity (PIM-1) to provide recoverable heterogenized photocatalysts without loss of activity. Different types of g-CN (including Pt@g-CN, Pd@g-CN, and Au@g-CN) and different quenchers are investigated.
View Article and Find Full Text PDFThin films of cellulose and cellulose-CaSiO composites were prepared using 1-ethyl-3-methylimidazolium acetate (EMIMAc) as the dissolution medium and the composites were regenerated from an anti-solvent. The surface hydrophilicity of the resultant cellulose composites was lowered by coating them with three different hydrophobizing agents, specifically, trichloro(octadecyl)silane (TOS), ethyl 2-cyanoacrylate (E2CA) and octadecylphosphonic acid (ODPA), using a simple dip-coating technique. The prepared materials were subjected to flame retardancy, water barrier, thermal, mechanical and biodegradation properties analyses.
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