Aminobenzaldehyde convelently modified graphitic carbon nitride photocatalyst through Schiff base reaction: Regulating electronic structure and improving visible-light-driven photocatalytic activity for moxifloxacin degradation

Liu, Yi; Bian, Changhao; Li, Yingshuang; Sun, Pengfei; Xiao, Yingping; Xiao, Xingning; Wang, Wen; Dong, Xiaoping

doi:10.1016/j.jcis.2022.10.073

Cited by 55 publications

(18 citation statements)

References 55 publications

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“…Surprisingly, when pH decreases from 6.5 to 1.5, the yield monotonously reduces to 235 μM, and this may be caused by the oxidization of H 2 O 2 to H 2 O with excess [H + ] (eqn (11)). 54,55 The TC degradation efficiency as a function of pH follows the same trend. At pH = 6.5, Fe 2 O 3 @C@1T/2H-MoS 2 presents the maximum degradation rate due to the highest H 2 O 2 yield (Fig.…”

Section: Resultsmentioning

confidence: 67%

Photocatalytic generation of H₂O₂ over a Z-scheme Fe₂O₃@C@1T/2H-MoS₂ heterostructured catalyst for high-performance Fenton reaction

et al. 2023

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Section: Resultsmentioning

confidence: 67%

Photocatalytic generation of H₂O₂ over a Z-scheme Fe₂O₃@C@1T/2H-MoS₂ heterostructured catalyst for high-performance Fenton reaction

et al. 2023

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“…In addition, we determined the VB edge potential of the photocatalyst through the UPS (Figure S9), based on E VBE = h υ – ( E cut – E FM ) and E CB = E g – E VB , where h υ = 21.22 eV, 0 V vs RHE (reversible hydrogen electrode) = −4.44 eV vs E vac (vacuum energy level), which can roughly infer the energy level structure of the photocatalyst (Figure d). g-C 3 N 4 and NFD-CN have E VB / E CB values of 1.48 eV/–1.19 eV and 1.08 eV/–1.25 eV, respectively, and it is clear that the electronic structure of FD-CN is altered compared to g-C 3 N 4 ; both the VB and CB of FD-CN are shifted to negative potentials, indicating a weaker oxidation of photoexcited h + . Moreover, the photogenerated electrons on the CB may be a strong driving force for the generation of superoxide radicals.…”

Section: Resultsmentioning

confidence: 98%

“…g-C 3 N 4 and NFD-CN have E VB /E CB values of 1.48 eV/−1.19 eV and 1.08 eV/−1.25 eV, respectively, and it is clear that the electronic structure of FD-CN is altered compared to g-C 3 N 4 ; both the VB and CB of FD-CN are shifted to negative potentials, indicating a weaker oxidation of photoexcited h + . 41 Moreover, the photogenerated electrons on the CB may be a strong driving force for the generation of superoxide radicals.…”

Section: ■ Experimental Sectionmentioning

confidence: 99%

Preparation and Photocatalytic Degradation Performance of Amine-Rich Carbon Nitride with Structural Modulation of the Precursor

Shi,

Yu,

et al. 2023

Langmuir

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The photocatalytic performance of graphitic phase carbon nitride (g-C3N4) is strongly influenced by its own microstructure as well as the precursor structure that causes the microstructure changes. In this paper, a composite precursor of sodium chloride and cyanamide (NaCl/CA-2) was obtained by freeze-drying, which possess an aggregated state different from that of the non-freeze-drying method. This new aggregation state with the introduction of sodium ions into the cyanamide lattice results in a higher activation energy of NaCl/CA-2 in the thermal polycondensation process of the molten salt-assisted preparation of g-C3N4, which prevented the condensation of two cyanamides to one dicyandiamide, ultimately obtaining FD-CN with an amino-rich structure. The nitrogen atoms on the amino group can provide the photocatalyst with more unpaired electrons that can participate in the photoexcitation process, further improving its electron–hole separation ability and charge transfer efficiency, thus effectively enhancing its photocatalytic activity. Compared to the original g-C3N4, the photocatalytic activity of FD-CN for the degradation of methylene blue increased 2.19 times.

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“…In addition, as shown in Figure a, the band gaps (E g ) of BT2-LNRs and BT2-SNRs are 2.98 and 3.02 eV, respectively. So, the VB potential ( E VB ) and conduction band potential ( E CB ) can be calculated by the following equation – .25ex2ex E normalV normalB − E normalC normalB = E g E normalV normalB − E F = E d …”

Section: Resultsmentioning

confidence: 99%

Piezoelectric-Enhanced Photocatalytic Performance of BaTi₂O₅ Nanorods for Degradation of Organic Pollutants

Yan,

Chen,

et al. 2023

ACS Appl. Nano Mater.

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The combination of the piezoelectric effect and photoexcitation properties in ferroelectric/piezoelectric materials used for piezo-photocatalysis is one of the current research hotspots in the field of sewage treatment and environmental remediation. Lead-free ferroelectric BaTi2O5 (BT2) exhibits a strong photoexcitation response and is strongly piezoelectric, so it shows excellent promise as an effective piezo-photocatalyst. Herein, a molten salt method was adopted to prepare a 1D BT2 nanorod with different average aspect ratios, which have been used as piezo-photocatalysts for the first time. The as-prepared BT2 nanorods had an excellent piezoelectric response, as determined by piezo-response force microscopy. The optimal BT2 nanorods were able to piezo-photocatalytically degrade rhodamine B (RhB) with excellent performance. Under ultrasonication and visible-light coexcitation, this catalyst achieved the highest first-order rate constant of k = 0.0353 min–1, 4.24 times higher than the rate constant achieved with ultrasonic excitation alone and 5.42 times higher than that achieved under visible-light irradiation alone. Moreover, the best degradation effect for the removal of quinolones [levofloxacin (LEV)] and other organic pollutants (methylene blue and methyl orange) was also achieved by the BT2 nanorods under ultrasonication and visible-light coexcitation. The internal piezoelectric field caused by bending vibration deflected the photogenerated carriers to the radial direction, which originally flowed toward the ends of the nanorods. This increased the participation of carriers at the active sites and reduced their migration distance. Therefore, the recombination of photogenerated carriers was inhibited, and better piezo-photocatalytic performance for pollutant degradation was achieved. The strong correlation between piezoelectric properties and the coupling effect of piezoelectric-photocatalysis is demonstrated by this work, which offers a strategy to optimize the flow of photogenerated charge carriers in one-dimensional (1D) photocatalysts and, in turn, improve the photocatalytic efficiency of 1D photocatalysts for the degradation of organic pollutants.

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Aminobenzaldehyde convelently modified graphitic carbon nitride photocatalyst through Schiff base reaction: Regulating electronic structure and improving visible-light-driven photocatalytic activity for moxifloxacin degradation

Cited by 55 publications

References 55 publications

Photocatalytic generation of H₂O₂ over a Z-scheme Fe₂O₃@C@1T/2H-MoS₂ heterostructured catalyst for high-performance Fenton reaction

Photocatalytic generation of H₂O₂ over a Z-scheme Fe₂O₃@C@1T/2H-MoS₂ heterostructured catalyst for high-performance Fenton reaction

Preparation and Photocatalytic Degradation Performance of Amine-Rich Carbon Nitride with Structural Modulation of the Precursor

Piezoelectric-Enhanced Photocatalytic Performance of BaTi₂O₅ Nanorods for Degradation of Organic Pollutants

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Aminobenzaldehyde convelently modified graphitic carbon nitride photocatalyst through Schiff base reaction: Regulating electronic structure and improving visible-light-driven photocatalytic activity for moxifloxacin degradation

Cited by 55 publications

References 55 publications

Photocatalytic generation of H2O2 over a Z-scheme Fe2O3@C@1T/2H-MoS2 heterostructured catalyst for high-performance Fenton reaction

Photocatalytic generation of H2O2 over a Z-scheme Fe2O3@C@1T/2H-MoS2 heterostructured catalyst for high-performance Fenton reaction

Preparation and Photocatalytic Degradation Performance of Amine-Rich Carbon Nitride with Structural Modulation of the Precursor

Piezoelectric-Enhanced Photocatalytic Performance of BaTi2O5 Nanorods for Degradation of Organic Pollutants

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Photocatalytic generation of H₂O₂ over a Z-scheme Fe₂O₃@C@1T/2H-MoS₂ heterostructured catalyst for high-performance Fenton reaction

Photocatalytic generation of H₂O₂ over a Z-scheme Fe₂O₃@C@1T/2H-MoS₂ heterostructured catalyst for high-performance Fenton reaction

Piezoelectric-Enhanced Photocatalytic Performance of BaTi₂O₅ Nanorods for Degradation of Organic Pollutants