Published: Jan. 1, 2023
Language: Английский
Progress in Materials Science, Journal Year: 2024, Volume and Issue: 147, P. 101352 - 101352
Published: Aug. 14, 2024
Language: Английский
Citations
20
Chemosphere, Journal Year: 2024, Volume and Issue: 351, P. 141212 - 141212
Published: Jan. 19, 2024
Language: Английский
Citations
18
Journal of Materials Chemistry A, Journal Year: 2023, Volume and Issue: 11(40), P. 21470 - 21497
Published: Jan. 1, 2023
Various strategies for improving the photocatalytic performance of covalent triazine frameworks, including molecular design, structural regulation and creation heterostructures, are summarized.
Language: Английский
Citations
36
Crystals, Journal Year: 2023, Volume and Issue: 13(4), P. 588 - 588
Published: March 30, 2023
Rhodamine B (RhB) is extensively used for dyeing purposes, and cannot be completely removed using traditional water treatment technologies. Here, we report the first time photodegradation of RhB nitrogen-doped titanium dioxide (N-TiO2) on reduced graphene oxide (rGO) composite (N-TiO2/rGO). The work primarily highlights synergistic effect incorporation N-TiO2 rGO its kinetic study RhB. N-TiO2/rGO was synthesized by dispersing titanium(IV) isopropoxide urea, followed annealing via hydrothermal method with rGO. Scanning electron microscopy (SEM) images illustrated that particles an irregular round shape white color were dispersed onto surface. X-Ray diffraction (XRD) patterns revealed showed anatase phase TiO2 a peak 2θ = 25.622°. gas sorption analysis (GSA) had surface area, pore volume, size 53.393 m2/g, 0.096 cc/g, 3.588 nm, respectively. thermogravimetric-differential thermal (TG-DTA) appeared at temperature 200–500 °C, weight loss 2.50%. According to ultraviolet-visible diffuse reflectance spectroscopy (UV-Vis DRS) study, TiO2, N-TiO2, band gap energies 3.25, 2.95, 2.86 eV, highest obtained optimum condition in pH 2 photocatalyst mass 20 mg irradiation 90 min. photocatalytic activity visible light higher percentage 78.29%, compared 44.08% under UV light. pseudo-second-order model.
Language: Английский
Citations
24
Materials Reports Energy, Journal Year: 2023, Volume and Issue: 3(4), P. 100235 - 100235
Published: Oct. 27, 2023
Due to the abundance and sustainability of solar energy, converting it into chemical energy obtain clean presents an ideal solution for addressing environmental pollution shortages stemming from extensive combustion fossil fuels. In recent years, hydrogen has emerged on stage history as most promising carrier 21st century. Among current methods producing hydrogen, photocatalytic production technology, a zero-carbon approach high calorific value pollution-free attracted much attention since its discovery. As core photocatalysis semiconductor photocatalysts are always research hotspots. them, graphite-phase carbon nitride (g-C3N4), organic material composed only C N elements, possesses physicochemical properties incomparable those traditional inorganic materials, including suitable band positions, easy structural regulation, inexpensive raw materials abundant reserves, simple preparation, thermal/mechanical/chemical stability, etc. Therefore, g-C3N4 in field last two decades. This review comprehensively outlines trajectory production, encompassing development, preparation methods, advantages, disadvantages. A concise introduction is provided, well analysis underlying mechanism system. Additionally, delves latest techniques enhance performance, nanostructure design, elemental doping, heterojunction construction. The applications based surveyed, underscoring significance catalyst active sites synthesis pathways. At length, concluded insights challenges opportunities presented by achieving heightened production.
Language: Английский
Citations
21
ACS Catalysis, Journal Year: 2024, Volume and Issue: 14(6), P. 3889 - 3899
Published: Feb. 26, 2024
The photogenerated reactive oxygen species (ROSs) in N-heterocyclic carbene (NHC)-based heterogeneous photocatalysis hold promise for addressing the challenge of fostering Breslow-derived radicals. In this study, two conjugated porous polymers (CPPs), namely, Im-PCPP-1 and Im-PCPP-2, decorated with donor–acceptor-type porphyrin imidazole/imidazolium moieties, are synthesized via Suzuki–Miyaura coupling reaction. Importantly, ionization imidazole monomer effectively tunes push–pull effect D–A building blocks band structure Im-PCPPs. On basis, Im-PCPP-2 ionized imidazolium exhibits good catalytic activity toward oxidative N-formylation diverse secondary amines through cooperation photoredox situ NHC catalysis a radical manner, where acetaldehyde serves as carbon source formylation. Experimental calculation results suggest that multiple ROS play crucial roles: hydroxide OH– base to generate NHC; hydroxyl ·OH hydrogen atom transfer abstractors produce aza-Breslow-derived radicals partners cross-coupling; singlet 1O2 oxidant convert into cyclic peroxide. It is noteworthy photochemical process has achieved efficient conversion its derivatives high-value-added N-formamides.
Language: Английский
Citations
7
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown
Published: Sept. 10, 2024
Abstract Graphitic carbon nitride (g‐C 3 N 4 ) has witnessed tremendous research interest due to its narrow bandgap, intrinsic 2D structure, and abundant raw materials. Although g‐C some shortcomings such as low specific surface area, poor conductivity rapid charge carries recombination, various modification methods are constantly emerging enhance potential application value in photocatalysis. Increasing the crystallinity of is an effective strategy improve in‐plane separation efficiency. However, it also reported that amorphous possesses a higher adsorption activation ability over reactants richer functional groups than crystalline . Which type more suits photocatalysis, which method suitable for boosting activity two types , respectively? Based on these issues, recent advances preparation properties summarized, their performance improvement strategies overviewed thoroughly. Upon systematic comparison analysis, respectively, proposed. Their applications summed up especially environment remediation energy conversation. Finally, ongoing opportunities future challenges photocatalysis territory taken consideration.
Language: Английский
Citations
6
Environmental Pollution, Journal Year: 2024, Volume and Issue: 345, P. 123522 - 123522
Published: Feb. 6, 2024
Language: Английский
Citations
5
Journal of CO2 Utilization, Journal Year: 2024, Volume and Issue: 83, P. 102808 - 102808
Published: May 1, 2024
Artificial photosynthesis is a viable technique for mitigating the ever-increasing energy demands by converting carbon dioxide (CO2) into energy-rich C1 and C2+ products. A massive contribution to climate change global warming widespread use of fossil fuels, responsible more than 90% total CO2 emissions 75% greenhouse gas emissions. The most efficient method convert renewable clean utilizing plentiful sun accelerate photo-induced chemical reactions. Practical reduction (CO2R), including choosing promising wide-bandgap (WBG) semiconductor photocatalysts with negative conduction band potential, would be holy grail selective fuels chemicals production. This review article deliberates on importance WBG specific level in photocatalytic CO2R, which may assist guiding future photocatalyst design CO2R. In addition, summary prospects techniques improving conversion efficiency selectivity are discussed.
Language: Английский
Citations
5
Journal of Water Process Engineering, Journal Year: 2023, Volume and Issue: 53, P. 103866 - 103866
Published: June 4, 2023
Language: Английский
Citations
11