English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The hydrothermal process was used to prepare Mn 3 O 4 /x%GO nanocomposites (NC’s) having different ratios of the Mn 3 O 4  nanoparticles (NP’s) on the surface of graphene oxide (GO) sheet. SEM image showed that the Mn 3 O 4  NP’s were distributed over the surface of GO sheet. HRTEM images exhibited the lattice fringe arising from the (101) plane of the Mn 3 O 4  NP’s having the interplanar d-spacing of 0.49 nm decorating on the surface of GO. The electronic absorption spectra of Mn 3 O 4 /x%GO NC’s also show broad bands from 250 to 550 nm. These bands arise from the d–d crystal field transitions of the tetrahedral Mn 3+  species and indicate a distortion in the crystal structure. Photo-catalytic activity of spinel ferrite Mn 3 O 4  NP’s by themselves was low but photo-catalytic activity is enhanced when the NP’s are decorating the GO sheet. Moreover, the Mn 3 O 4 /10%GO NC’s showed the best photo-catalytic activity. This result comes from the formation of Mn–O–C bond that confirm by FT-IR. This bond would facilitate the transfer of the photoelectrons from the surfaces of the NP’s to the GO sheets. PL emission which is in the violet–red luminescent region shows the creation of defects in the fabricated Mn 3 O 4  NP’s nanostructures. These defects create the defect states to which electrons in the VB can be excited to when the CB. The best degradation efficiency was achieved by the Mn 3 O 4  NP’s when they were used to decorate the GO sheets in the Mn 3 O 4 /10%GO NC’s solution. Highlights Lattice fringe of Mn3O4 with an interplanar d-spacing of 0.49 nm for (101) plane. Photocatalytic activity of spinel ferrite Mn3O4 nanoparticles by itself is low. Number of photoelectrons created depends on number of Mn3O4 on a given area of GO The bonding of the Mn3O4 to the GO sheet would be though a Mn–O–C junction. The degradation processes were accelerated by Mn3O4/10%GO nanocomposites Graphic abstract

Enhancement of photocatalytic by Mn3O4 spinel ferrite decorated graphene oxide nanocomposites