Well-dispersed nebula-like ZnO/CeO2@HNTs heterostructure for efficient photocatalytic degradation of tetracycline

Surface Plasmonic Resonance and Z-Scheme Charge Transport Synergy in Three-Dimensional Flower-like Ag–CeO2–ZnO Heterostructures for Highly Improved Photocatalytic CO2 Reduction

“…The EVB and ECB of two semiconductors were calculated via eqs and , respectively, and are represented in Table S4. where ECB is the edge potential of CB, EVB is the edge potential of VB, χ is the electronegativity of the semiconductor, Eef is the energy of free electrons on the hydrogen scale (about 4.5 eV), and Eg is the semiconductor band gap energy. The χ values are 5.56 and 5.79 for ZnO and CeO 2 , respectively . These results suggest that the 3AgCZ composite could extend the absorption slope to the visible light section, enhancing the harvesting of the solar spectrum, which is relatively valuable to boost the photocatalytic quality.…”

Low-Operating-Temperature NO2 Sensor Based on a CeO2/ZnO Heterojunction

“…A more pronounced peak of CeO2 is observed at 28.5° as the loading concentration of Ce gradually increases (Figure 2c). The absence of CeO2 peaks in the samples with less Ce content indicates that the less crystalline CeO2 nanoparticles were uniform in size and did not form clusters or granulate [28]. In Figure 2d,e, the UV-Vis spectrum pattern of pure ZnO, CeO 2 , and CeO 2 /ZnO-2 is shown.…”

Crystal facet and surface defect engineered low dimensional CeO2(0D, 1D, 2D) based photocatalytic materials towards energy generation and pollution abatement

“…While the hexagon with (311) exposed plane and rod/cube morphology with (111) exposed plane showed good affinity for the negative site of CIP molecule, as these morphology contains more positive surface layer [62]. Further, a number of bismuth based materials along with the other low-dimensional materials has been studied with CeO 2 towards the elimination of different antibiotics [127,[276][277][278][279][280][281][282][283][284]. Recently an efficient hollow BiOCl@CeO 2 heterostructured microspheres with type-II staggered-arrangement was reported for the photodegradation of an antibiotic i.e tetracycline (TC).…”

“…In the context to the environment cleanup process, various nanostructure CeO 2 and CeO 2 based materials have been reported for air purification and wastewater treatment by efficient photocatalytic degradation/ mineralization of different dyes (RhB, MB, acid orange, eosin yellow etc.) , antibiotics [275][276][277][278][279][280][281][282][283][284] and organic pollutants (phenol-based materials) [285][286][287][288][289], as summarized in table 3. Morphology alteration enhances the surface defects such as Ce 3+ state and oxygen vacancies, which increases the light absorption parameter with redshifted absorption edge and also retards the photogenerated electron-hole recombination rate.…”