Construction of mesoporous CuMn2O4/g-C3N4 heterojunctions as effective photocatalysts for reduction and removal of mercury ions

Journal of Materials Science: Materials in Electronics - In this work, CuMn2O4/g-C3N4 photocatalysts with variations of CuMn2O4 NPs percentages (0.5–2%) have been performed as effective...     

Biodegradable lignin as a reactive raw material in UV curable systems

ABSTRACT

Radiation curing technologies, including ultraviolet (UV) and electron beam curing, have received increasing attention especially after the increasing concerns on energy consumption, environmental protection, and occupational health and safety. Ultraviolet (UV)-curable polymerization are progressively being utilized in numerous manufacturing since they can be speedily applied in addition to their outstanding physical properties such as excellent surface quality, productivity, and slow energy consuming.This paper briefly reviews the research milestones in the area of wood chemical modification, focusing on the basic principles and applications of UV curable systems and polymerization. The study also extends to highlight the effect of lignin incorporation into UV curable system on coating quality, thermal stability, chemical resistance and mechanical properties.     

Mesoporous V2O5/g-C3N4 Nanocomposites for Promoted Mercury (II) Ions Reduction Under Visible Light

Journal of Inorganic and Organometallic Polymers and Materials - The present study addresses a successful attempt to promote the photocatalytic reduction of mercury ions (Hg2+) over the synthesized...     

Preparation of highly efficient sunlight driven photodegradation of some organic pollutants and H2 evolution over rGO/FeVO4 nanocomposites

FeVO₄ and rGO/FeVO₄ nanocomposites were synthesized by one-step hydrothermal method. The structural and morphological properties of the prepared samples were investigated by XRD, TEM, EDS, XPS, FTIR, Raman, UV–Vis DRS and PL techniques. XRD, XPS and Raman techniques displayed that graphene oxide (GO) was successfully reduced to reduced graphene oxide (rGO) under hydrothermal conditions. Also, the addition of rGO enhanced the visible light absorption, oxygen vacancies, phase transformation of FeVO₄ from triclinic to monoclinic phase at high amount of rGO and reduced the band gap energy of FeVO₄. The photoactivity of the synthesis catalysts was investigated for the photodegradation of Malachite green, phenol, Methylene blue and Rhodamine B under natural sunlight. Also, the catalysts were applied in H₂ evolution from water splitting. The results showed that, the rGO amount was proven to be a crucial factor affecting the structural properties and photocatalytic performance of FeVO₄. The mineralization (TOC), photodegradation mechanism and photocatalytic reaction kinetics were discussed.