N-doped synergistic porous thin-walled g-C3N4 nanotubes for efficient tetracycline photodegradation

Xing, Jiangna; Huang, Xin; Xin, Yong; Li, Xin; Li, Jun; Wang, Jingkang; Wang, Na; Hao, Hongxun

doi:10.1016/j.cej.2022.140570

Cited by 26 publications

(5 citation statements)

References 59 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At the same time, several refractions of the incident light occurred in the nanotube when the photocatalyst receives the light excitation, which would reduce the recombination probability of electrons and holes. [ 51 ] All the above results demonstrated the positive effects of MoS 2 ‐ONT on prolonging carrier lifetime and reducing the recombination of photogenerated electron–hole.…”

Section: Resultsmentioning

confidence: 81%

Accelerated Confined Mass Transfer of MoS₂ 1D Nanotube in Photo‐Assisted Metal–Air Batteries

Liang,

Zheng,

Song

et al. 2023

Advanced Materials

View full text Add to dashboard Cite

Applying solar energy into energy storage battery systems is challenging in achieving green and sustainable development, however, the efficient progress of photo‐assisted metal–air batteries is restricted by the rapid recombination of photogenerated electrons and holes upon the photocathode. Herein, a 1D‐ordered MoS2 nanotube (MoS2‐ONT) with confined mass transfer can be used to extend the lifetime of photogenerated carriers, which is capable of overcoming the challenge of rapid recombination of electron and holes. The tubular confined space cannot only promote the orderly separation and migration of charge carriers but also realize the accumulation of charge and the rapid activation of oxygen molecules. The concave surface of MoS2‐ONT can improve the carrier separation ability and prolong the carrier lifetime. Meanwhile, the ordered tubular confined space can effectively realize the rapid transfer of charge, ion, and oxygen. Under light irradiation, a fast oxygen reduction reaction kinetics of 70 mW cm−2 for photo‐assisted Zn–air battery is achieved, which is the highest value reported for photo‐assisted Zn–air batteries. Significantly, the photo‐assisted Li–O2 battery based on MoS2‐ONT also shows superior rate capability and other exciting battery performance. This work shows the universality of the confined carrier separation strategy in photo‐assisted metal–air batteries.

show abstract

Section: Resultsmentioning

confidence: 81%

Accelerated Confined Mass Transfer of MoS₂ 1D Nanotube in Photo‐Assisted Metal–Air Batteries

Liang,

Zheng,

Song

et al. 2023

Advanced Materials

View full text Add to dashboard Cite

show abstract

“…Then, P3 ( m / z ) = 318 was formed by the acyl group attacked by reactive radicals and the carbocyclic ring cleaving reaction. Through continuous oxidation, P6 with m / z = 274 was generated . For pathway II, because of the low bond energy and high spatial site resistance of the C–N bond, it could be easily attacked by the h + .…”

Section: Resultsmentioning

confidence: 99%

“…Through continuous oxidation, P6 with m/z = 274 was generated. 52 For pathway II, because of the low bond energy and high spatial site resistance of the C−N bond, it could be easily attacked by the h + . Thus, P1 tended to lose N-methyl and −NH 2 to generate P4 (m/z = 410).…”

Section: Possible Photodegradation Pathway and Toxicity Assessment Of...mentioning

confidence: 99%

3D/1D Fe₃O₄@TiO₂/TC-TiO₂/SiO₂ Magnetic Inorganic-Framework Molecularly Imprinted Fibers for Targeted Photodegradation

Li,

Song

et al. 2024

Inorg. Chem.

View full text Add to dashboard Cite

To achieve a selective degradation of pollutants in a water body, 3D/1D magnetic molecularly imprinted fibers Fe 3 O 4 @ TiO 2 /TC-TiO 2 /SiO 2 were fabricated by an electrospinning method. The molecularly imprinted layer was successfully prepared by a direct imprinting method using TiO 2 as a functional monomer. Fe 3 O 4 facilitates the catalyst recovery and light utilization. The as-prepared fibrous photocatalyst has a large specific surface area of 132.4 m 2 /g. The successful generation of imprinted sites was proven by various characterizations. The weak interaction between the inorganic functional monomer and tetracycline (TC) was determined to be van der Waals force and hydrogen bonds by the IGMH isosurface theory. The construction of the 3D/1D homojunction of molecularly imprinted materials is beneficial to charge transfer. The asprepared photocatalyst exhibits a high selectivity coefficient α = 737.38 competing with RhB. The TC removal efficiency reached 100% within only 20 min. In addition, the possible degradation pathway and the degradation mechanism are reasonably proposed. This work not only provides an in-depth mechanism of the weak interaction between the inorganic molecularly imprinted functional monomer and pollutant molecules but also offers new thoughts on the fabrication of photocatalysts for the effective and selective treatment of pollutants in water bodies.

show abstract

“…Recently, N-doped g-C 3 N 4 has been proposed via the annealing of melamine cyanurate supermolecules via the hydrothermal reaction of melamine and aminourea hydrochloride [162]. Doping at an edge three-coordinated C site, the doped N atoms induced defect states in the electronic band structure near CBM, thus extending the solar harvesting ability to almost 550 nm.…”

Section: N Dopants With Defect Statesmentioning

confidence: 99%

Decade Milestone Advancement of Defect-Engineered g-C3N4 for Solar Catalytic Applications

Hou,

Gao,

et al. 2024

Nano-Micro Lett.

View full text Add to dashboard Cite

Over the past decade, graphitic carbon nitride (g-C3N4) has emerged as a universal photocatalyst toward various sustainable carbo-neutral technologies. Despite solar applications discrepancy, g-C3N4 is still confronted with a general fatal issue of insufficient supply of thermodynamically active photocarriers due to its inferior solar harvesting ability and sluggish charge transfer dynamics. Fortunately, this could be significantly alleviated by the “all-in-one” defect engineering strategy, which enables a simultaneous amelioration of both textural uniqueness and intrinsic electronic band structures. To this end, we have summarized an unprecedently comprehensive discussion on defect controls including the vacancy/non-metallic dopant creation with optimized electronic band structure and electronic density, metallic doping with ultra-active coordinated environment (M–Nx, M–C2N2, M–O bonding), functional group grafting with optimized band structure, and promoted crystallinity with extended conjugation π system with weakened interlayered van der Waals interaction. Among them, the defect states induced by various defect types such as N vacancy, P/S/halogen dopants, and cyano group in boosting solar harvesting and accelerating photocarrier transfer have also been emphasized. More importantly, the shallow defect traps identified by femtosecond transient absorption spectra (fs-TAS) have also been highlighted. It is believed that this review would pave the way for future readers with a unique insight into a more precise defective g-C3N4 “customization”, motivating more profound thinking and flourishing research outputs on g-C3N4-based photocatalysis.

show abstract

N-doped synergistic porous thin-walled g-C3N4 nanotubes for efficient tetracycline photodegradation

Cited by 26 publications

References 59 publications

Accelerated Confined Mass Transfer of MoS₂ 1D Nanotube in Photo‐Assisted Metal–Air Batteries

Accelerated Confined Mass Transfer of MoS₂ 1D Nanotube in Photo‐Assisted Metal–Air Batteries

3D/1D Fe₃O₄@TiO₂/TC-TiO₂/SiO₂ Magnetic Inorganic-Framework Molecularly Imprinted Fibers for Targeted Photodegradation

Decade Milestone Advancement of Defect-Engineered g-C3N4 for Solar Catalytic Applications

Contact Info

Product

Resources

About

N-doped synergistic porous thin-walled g-C3N4 nanotubes for efficient tetracycline photodegradation

Cited by 26 publications

References 59 publications

Accelerated Confined Mass Transfer of MoS2 1D Nanotube in Photo‐Assisted Metal–Air Batteries

Accelerated Confined Mass Transfer of MoS2 1D Nanotube in Photo‐Assisted Metal–Air Batteries

3D/1D Fe3O4@TiO2/TC-TiO2/SiO2 Magnetic Inorganic-Framework Molecularly Imprinted Fibers for Targeted Photodegradation

Decade Milestone Advancement of Defect-Engineered g-C3N4 for Solar Catalytic Applications

Contact Info

Product

Resources

About

Accelerated Confined Mass Transfer of MoS₂ 1D Nanotube in Photo‐Assisted Metal–Air Batteries

Accelerated Confined Mass Transfer of MoS₂ 1D Nanotube in Photo‐Assisted Metal–Air Batteries

3D/1D Fe₃O₄@TiO₂/TC-TiO₂/SiO₂ Magnetic Inorganic-Framework Molecularly Imprinted Fibers for Targeted Photodegradation