Modified polyacrylamide gel synthesis of CeO2 nanoparticles by using cerium sulfate as metal source and its optical and photoluminescence properties

Construction of CeO2/PbFe12O19 Heterojunction Photocatalysts and their Preference for the Photodegradation of −C=O and −CONH2

“…Two consecutive characteristic peaks at 531.19–531.60 and 532.61–533.20 eV can be attributed to the lattice oxygen of PFO [5b] . The last characteristic peak at the highest binding energy of 534.23–534.38 eV is due to the absorbed oxygen in CO/PFO heterojunction photocatalysts [5b,d] . XPS characterization results confirmed that there were no other impurities in CO/PFO heterojunction photocatalysts and a special heterojunction structure was formed between CO and PFO photocatalysts.…”

“…Similar to (Ba, Sr)Fe 12 O 19 and (Ca, Sr, Ba)Al 12 O 19 , PFO prepared by a polyacrylamide gel method can easily obtain large particles with the lamellar structure [9a,12] . According to the literature, [5d,13] the CO synthesized by a polyacrylamide gel method is ultrafine spherical nanoparticles. When CO and PFO are coupled, the ultrafine nanoparticles attach to the surface of the large lamellar particles to form a special interface contact as shown in Figure 6(a).…”

“…Table 4 shows the binding energies of O 1s for the 5 % CO/PFO, 10 % CO/PFO, 15 % CO/PFO and 20 % CO/PFO heterojunction photocatalysts. The first characteristic peak is located at the lowest binding energy of 529.44–529.51 eV, which can be allocated to the lattice oxygen of CO [5d] . Two consecutive characteristic peaks at 531.19–531.60 and 532.61–533.20 eV can be attributed to the lattice oxygen of PFO [5b] .…”

“…CO and PFO photocatalysts were successfully synthesized by a facile polyacrylamide gel method [5b,d] . A stoichiometric amount of cerium sulfate (Ce(SO 4 ) 2 ⋅ 4H 2 O) was dissolved in the distilled water to obtain a solution of 0.015 mol/L with the total cations.…”

Synthesis and Photocatalytic Degradation of Water to Produce Hydrogen from Novel Cerium Dioxide and Silver-Doped Cerium Dioxide Fiber Membranes by the Electrospinning Method

“…This is because the nano-silver loaded in the CeO 2 semiconductor brings defects, resulting in changes in the band structure and reduction of the band gap width. And the nano-silver particles have the capability to absorb light, so the The band gap energy (Eg) values of pure cerium dioxide nanofiber membranes and cerium dioxide nanofiber membranes doped with different amounts of nano-silver were obtained by absorbance spectra using the Tauc relation (Tang et al, 2020;Wang and Tian, 2020;Wang et al, 2021e;Gao et al, 2021).…”