Fabrication of Fe-doped ZnO/nanocellulose nanocomposite as an efficient photocatalyst for degradation of methylene blue under visible light

Sulfated lignocellulose nanofibril supported flower-like BiOBr with oxygen vacancies towards absorption–photocatalytic synergetic removal of organic pollutants

“…For instance, Farahani et al prepared Fe-doped ZnO/NC composites by in situ synthesis, in which the introduction of NC enhanced the hydrophilicity of Fe-ZnO particles. 27 Additionally, NC contains a lot of polar groups which can control the morphology of semiconductor oxide particles to further improve their photocatalytic activity. [28][29][30] Tian et al prepared flower-like BiOCl using NC as a structure-directing agent by a hydrothermal method.…”

Exploitation of a Poly Acrylic Acid-Fe3+ Hydrogel Photocatalyst with Homogeneous and Heterogeneous Features for the Efficient Removal of Organic Pollutants

“…For traditional semiconductor catalysts, numerous effective strategies, such as precious metal deposition, metal-ion doping, semiconductor coupling, and dye sensitizing, have been developed. − Among them, doping metal ions is considered to be a highly efficient route, which can extend light response and reduce the recombination of photogenerated carriers by introducing a doped energy between the valence and conduction bands and some structure defects in the lattice of the main active substance and thus improve the photocatalytic activity. , Researchers have also added metal ions into hydrogels for improving their physical-mechanical properties. , However, in this study, introducing metallic-ion Fe 3+ into a 3D network of a polymer (poly acrylic acid hydrogel: PAA) not only improves the mechanical property of the hydrogel but also, more importantly, endows the PAA-Fe 3+ hydrogel material with a homogeneous/heterogeneous photocatalytic feature. Therefore, exploiting hydrogel-metal ion materials might address the issues mentioned above due to the many advantages of the hydrogel.…”