A5052884279- Advanced Photocatalysis Techniques
- Cultural Heritage Materials Analysis
- Fullerene Chemistry and Applications
- Covalent Organic Framework Applications
- Carbon Nanotubes in Composites
- Conservation Techniques and Studies
- Building materials and conservation
- Metal-Organic Frameworks: Synthesis and Applications
- Graphene research and applications
- Sulfur-Based Synthesis Techniques
- TiO2 Photocatalysis and Solar Cells
- Advanced Nanomaterials in Catalysis
- Pigment Synthesis and Properties
- Chemical Synthesis and Reactions
- Innovative Microfluidic and Catalytic Techniques Innovation
- Synthesis and Properties of Aromatic Compounds
- Radical Photochemical Reactions
- Oxidative Organic Chemistry Reactions
- Catalytic Processes in Materials Science
- Hydraulic Fracturing and Reservoir Analysis
- Image Processing and 3D Reconstruction
- Metallurgy and Cultural Artifacts
- Heart Rate Variability and Autonomic Control
- Smart Parking Systems Research
- Color Science and Applications
Wuhan Business University
2024
China University of Petroleum, Beijing
2023-2024
Beijing Institute of Graphic Communication
2009-2023
Chongqing University of Science and Technology
2023
Wuhan University
2011-2021
East China University of Science and Technology
2021
Zhejiang Normal University
2021
Jilin Medical University
2020
Jilin University
2020
Hubei University
2014-2017
The construction of stable covalent organic frameworks (COFs) for various applications is highly desirable. Herein, we report the synthesis a novel two-dimensional (2D) porphyrin-based sp2 carbon-conjugated COF (Por-sp2 c-COF), which adopts an eclipsed AA stacking structure with Brunauer-Emmett-Teller surface area 689 m2 g-1 . Owing to C=C linkages, Por-sp2 c-COF shows high chemical stability under conditions, even harsh conditions such as 9 m HCl and NaOH solutions. Interestingly, can be...
Abstract The construction of 2D and 3D covalent organic frameworks (COFs) from functional moieties for desired properties has gained much attention. However, the influence COFs dimensionality on their functionalities, which can further assist in COF design, never been explored. Now, by selecting designed precursors topology diagrams, porphyrinic (2D‐PdPor‐COF 3D‐PdPor‐COF) are synthesized. By model building Rietveld refinement powder X‐ray diffraction, 2D‐PdPor‐COF crystallizes as sheets...
Abstract 2D covalent organic frameworks (COFs) are receiving ongoing attention in semiconductor photocatalysis. Herein, we present a photocatalytic selective chemical transformation by combining sp 2 carbon‐conjugated porphyrin‐based framework (Por‐sp c‐COF) photocatalysis with TEMPO catalysis illuminated 623 nm red light‐emitting diodes (LEDs). Highly conversion of amines into imines was swiftly afforded minutes. Specifically, the π‐conjugation porphyrin linker leads to extensive absorption...
Abstract The construction of stable covalent organic frameworks (COFs) for various applications is highly desirable. Herein, we report the synthesis a novel two‐dimensional (2D) porphyrin‐based sp 2 carbon‐conjugated COF (Por‐sp c‐COF), which adopts an eclipsed AA stacking structure with Brunauer—Emmett—Teller surface area 689 m g −1 . Owing to C=C linkages, Por‐sp c‐COF shows high chemical stability under conditions, even harsh conditions such as 9 HCl and NaOH solutions. Interestingly, can...
Abstract Visible light‐driven interfacial redox reactions during dye‐sensitized TiO 2 are essential to meet the energy and environmental challenges in form of solar cells sensitized degradation organic pollutants. Inspired by these prior successes, it is conceivable that underlying principles processes can guide us construct selective chemical transformations which control selectivity higher demand. We attempt improve for sulfoxides visible aerobic oxidation sulfides merger photocatalysis...
Abstract The construction of 2D and 3D covalent organic frameworks (COFs) from functional moieties for desired properties has gained much attention. However, the influence COFs dimensionality on their functionalities, which can further assist in COF design, never been explored. Now, by selecting designed precursors topology diagrams, porphyrinic (2D‐PdPor‐COF 3D‐PdPor‐COF) are synthesized. By model building Rietveld refinement powder X‐ray diffraction, 2D‐PdPor‐COF crystallizes as sheets...
A new photocatalytic protocol utilizing surface complexation of phenol with TiO<sub>2</sub> for the selective oxidation amines into imines in air was presented.
Merging of catechol–TiO<sub>2</sub> complex photocatalysis with TEMPO catalysis can successfully facilitate the selective oxidation amines into imines air under blue LED irradiation.
Thermal reaction of [60]fullerene with various arylmethanamines in the presence aromatic aldehydes under air conditions afforded a series rare 2,5-diaryl fulleropyrrolidines. Intriguingly, obtained fulleropyrrolidines exhibited different stereoselectivity. N-unsubstituted exclusively produced as cis isomers, while N-substituted exceptions always gave trans isomers. Theoretical calculations at level B3LYP/6-31G (d,p) were employed to elucidate stereoselectivity isomers by investigating...
Herzberg staining, a quick and convenient tool for distinguishing non‐wood fibers from wood pulp, Raman spectroscopy were employed to investigate three paper currencies issued under the reign of Chinese Ming Qing Emperors between 15 th 19 centuries ‐ da ming bao chao (AMS C‐14 Date: 1410‐1435 AD, ±1σ) Early Dynasty (1405–1433 AD) qing (1859 hu bu guan piao (1854–1858 Late (1840–1911 AD). Fiber staining microscopic examination revealed predominance bast fiber probably mulberry trees very few...
The facile one-step reaction of [60]fullerene with various diols in the presence ferric perchlorate afforded a series rare fullerene-fused dioxanes/dioxepanes. Nevertheless, diethylene glycol, triethylene and tripropylene glycol promoted by unexpectedly generated dioxanes instead anticipated crown ethers. A plausible mechanism is proposed to explain formation dioxane/dioxepane products.
A series of scarce N-unsubstituted 2,5-diaryl fulleropyrrolidines as cis isomers could be prepared via the facile one-step reaction [60]fullerene with arylmethanamines promoted by cheap and easily available ferric perchlorate. Nevertheless, N-substituted under same conditions gave different experimental results. N-Methylbenzylamine formed N-methyl 2,5-diphenyl fulleropyrrolidine a trans isomer, N,N-dibenzylamine unexpectedly afforded isomer. Intriguingly, high stereoselectivity for all...
The facile one-step reaction of [60]fullerene with aldehydes and primary amines in the presence cheap easily available Cu(OAc)2·H2O afforded a series new types fulleropyrrolines trisubstituted C═C bonds good to excellent yields, which would be difficult prepare by known methods. formed fulleropyrroline under assistance Pd(OAc)2 CuCl2·2H2O could further converted 1-fulleropyrrolidine chlorohydroxylation bond. Subsequent elimination aid TsOH·H2O generated scarce 1-fulleropyrroline derivative.
The facile one-step reaction of [60]fullerene with isocyanates/isothiocyanates in the presence ferric perchlorate generates a series novel oxazolidinofullerenes/thiazolidinofullerenes.
Abstract To investigate the pigments and decoration applied to a wood‐based lacquer painting screen from tomb of Si‐ma Jin‐long, Shanxi Province, central China, made by Chinese craftsmen in 5th century, combination micro‐Raman spectroscopy, Fourier transform infrared spectroscopy (FTIR), wavelength dispersive X‐ray fluorescence (WDXRF), microscopic examination was used. The obtained results are as follows: (1) black, yellow, red colors identified carbon orpiment realgar, cinnabar,...