Aerosol self-assembly synthesis of g-C3N4/MXene/Ag3PO4 heterostructure for enhanced photocatalytic degradation of tetracycline hydrochloride

Xu, Qingbo; Wang, Peng; Wang, Zongqian; Shen, Jieliang; Han, Xu; Zheng, Xianhong; Wei, Yuhui; Li, Changlong; Song, Kun

doi:10.1016/j.colsurfa.2022.129392

Cited by 13 publications

(4 citation statements)

References 59 publications

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“…The peaks in the region 3000–3400 cm −1 were due to the N-H groups, and the peaks in the region 1200–1680 cm −1 and 810 cm −1 were due to the stretching vibrations of C-N and triazine. It is noteworthy that no characteristic absorption peaks belonging to Ti 3 C 2 and Ag 3 PO 4 were observed in the FTIR spectra of g-C 3 N 4 /Ti 3 C 2 /Ag 3 PO 4 , which is consistent with Ding’s research results [ 21 ].…”

Section: Resultssupporting

confidence: 91%

Removal of Tetracycline Hydrochloride by Photocatalysis Using Electrospun PAN Nanofibrous Membranes Coated with g-C3N4/Ti3C2/Ag3PO4

et al. 2023

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In order to improve the photocatalytic performance of g-C3N4, the g-C3N4/Ti3C2/Ag3PO4 S-type heterojunction catalyst was prepared by electrostatic assembly method, and then the g-C3N4/Ti3C2/Ag3PO4/PAN composite nanofiber membrane was prepared by electrospinning technology. The morphology and chemical properties of the nanofiber membrane were characterized by SEM, FTIR, and XRD, and the photocatalytic degradation of tetracycline hydrochloride (TC) in water by the nanofiber membrane was investigated. The results showed that g-C3N4/Ti3C2/Ag3PO4 could be successfully loaded on PAN and uniformly distributed on the surface of composite nanofiber membrane by electrospinning technology. Increasing the amount of loading and catalyst, lowering the pH value and TC concentration of the system were conducive to the oxidation and degradation of TC. The nano-fiber catalytic membrane had been recycled five times and found to have excellent photocatalytic stability and reusability. The study of catalytic mechanism showed that h+, •OH and •O2− were produced and participated in the oxidation degradation reaction of TC, and •O2− plays a major role in catalysis. Therefore, this work provides a new insight into the construction of high-performance and high-stability photocatalytic system by electrospinning technology.

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Section: Resultssupporting

confidence: 91%

Removal of Tetracycline Hydrochloride by Photocatalysis Using Electrospun PAN Nanofibrous Membranes Coated with g-C3N4/Ti3C2/Ag3PO4

et al. 2023

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“…In general, the smaller the radius of the arc in the electrochemical impedance spectrum, the smaller is the charge-transfer resistance. Figure 5 d shows that CN/CFO-0.05 exhibits the smallest radius, indicating that this catalyst has the largest electron-transfer efficiency [ 43 ]. Thus, the CN/CFO Z-scheme heterojunction structure enhanced the conductivity and mobility of the photocatalyst and contributed to the improved photocatalytic performance, as shown by the PL and UV–Vis results.…”

Section: Resultsmentioning

confidence: 99%

Synergistic Effects of Magnetic Z-Scheme g-C3N4/CoFe2O4 Nanofibres with Controllable Morphology on Photocatalytic Activity

Chen

Yang

et al. 2023

Nanomaterials

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The rational design of interfacial contacts plays a decisive role in improving interfacial carrier transfer and separation in heterojunction photocatalysts. In Z-scheme photocatalysts, the recombination of photogenerated electron–hole pairs is prevented so that the redox capacity is maintained. Here, one-dimensional graphitic carbon nitride (g-C3N4)/CoFe2O4 fibres were synthesised as a new type of magnetic Z-scheme visible-light photocatalyst. Compared with pure g-C3N4 and CoFe2O4, the prepared composite photocatalysts showed considerably improved performance for the photooxidative degradation of tetracycline and methylene blue. In particular, the photodegradation efficiency of the g-C3N4/CoFe2O4 fibres for methylene blue was approximately two and seven times those of g-C3N4 and CoFe2O4, respectively. The formation mechanism of the Z-scheme heterojunctions in the g-C3N4/CoFe2O4 fibres was investigated using photocurrent spectroscopy and electrochemical impedance spectroscopy. We proposed that one of the reasons for the improved photodegradation performance is that the charge transport path in one-dimensional materials enables efficient photoelectron and hole transfer. Furthermore, the internal electric field of the prepared Z-scheme photocatalyst enhanced visible-light absorption, which provided a barrier for photoelectron–hole pair recombination.

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“…The direct Z-type heterojunction not only promoted the separation of photoexcited electrons and holes, but also occupied both the strong reduction of g-C 3 N 4 and the high oxidation capacity of the amorphous Ti-peroxide complex, achieving 86.34% removal of TC in 60 min under visible light. Xu et al 145 constructed a S-type heterojunction of g-C 3 N 4 /MXene/Ag 3 PO 4 (PCN/M/AP). The obtained g-C 3 N 4 /M/AP exhibited a rate constant almost 4.3 times higher than that of pure g-C 3 N 4 and showed good stability after five consecutive cycles.…”

Section: Degradation Of Antibiotic Pollutantsmentioning

confidence: 99%

Recent advances and perspectives of emerging two-dimensional transition metal carbide/nitride-based materials for organic pollutant photocatalysis

Zheng

Zhang

Guo

et al. 2023

Mater. Chem. Front.

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Aerosol self-assembly synthesis of g-C3N4/MXene/Ag3PO4 heterostructure for enhanced photocatalytic degradation of tetracycline hydrochloride

Cited by 13 publications

References 59 publications

Removal of Tetracycline Hydrochloride by Photocatalysis Using Electrospun PAN Nanofibrous Membranes Coated with g-C3N4/Ti3C2/Ag3PO4

Removal of Tetracycline Hydrochloride by Photocatalysis Using Electrospun PAN Nanofibrous Membranes Coated with g-C3N4/Ti3C2/Ag3PO4

Synergistic Effects of Magnetic Z-Scheme g-C3N4/CoFe2O4 Nanofibres with Controllable Morphology on Photocatalytic Activity

Recent advances and perspectives of emerging two-dimensional transition metal carbide/nitride-based materials for organic pollutant photocatalysis

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