Room-temperature metal-activator-free phosphorescence from mesoporous silica
Literature Information
Lei Zhao, Tian Ming, Huanjun Chen, Li Gong, Jian Chen, Jianfang Wang
Room-temperature phosphorescence has been observed and studied on metal-activator-free mesoporous silica. The mesoporous silica was prepared using a nonionic triblock copolymer as the mesostructure-directing agent. The as-calcined products have a well-ordered porous structure and exhibit strong phosphorescence under ultraviolet light excitation. The luminescence spectra are featured with several peaks in the visible region. The luminescence intensity is found to vary as a function of the calcination temperature and reach a maximum around 500–600 °C, but the peak positions remain nearly unchanged. The average luminescence lifetime is several hundred microseconds, and the luminescence can persist for seconds after the excitation is switched off. In addition, due to the moderate calcination temperature, phosphorescent mesoporous silica monoliths with controllable sizes and shapes have been fabricated. Such mesoporous silica materials, including both powders and monoliths, with strong phosphorescence could find promising applications as low-density and eco-friendly phosphors and optically detectable drug carriers.
Recommended Journals
Related Literature
Smart self-assembled microgel films as encapsulating carriers for UV-absorbing molecules
Abdel Khoukh, Pablo Taboada, Kamel Chougrani, Valérie Alard
DOI: 10.1039/C8PY00146D
One-pot preparation of polylactic acid-ibuprofen conjugates and their performance characterization
Liang Cao, Qun-Fang Wang, Zhi-Feng Hao, Le Jing, Zhao-Yang Wang
DOI: 10.1039/C7PY01213F
High-throughput physicochemical analysis of thermoresponsive polymers
S. J. M. C. Bou, A. R. Connolly, A. V. Ellis
DOI: 10.1039/C7PY02066J
Hybrid conjugated polymers with alternating dithienosilole or dithienogermole and tricoordinate boron units
Yohei Adachi, Yousuke Ooyama, Yi Ren, Xiaodong Yin, Frieder Jäkle, Joji Ohshita
DOI: 10.1039/C7PY01790A
ATRP synthesis of polyallene-based amphiphilic triblock copolymer
Guolin Lu, Hao Guo, Xiaoyu Huang
DOI: 10.1039/C7PY01666B
Fluorescent and “breathable” CO2 responsive vesicles inspired from green fluorescent protein
Lei Xu, Ning Ren, Ji Pang, Hongping Deng, Xinyuan Zhu, Mo Sun, Deyue Yan
DOI: 10.1039/C7PY00963A
Synthesis, characterization and potential applications of 5-hydroxymethylfurfural derivative based poly(β-thioether esters) synthesized via thiol-Michael addition polymerization
Daihui Zhang, Marie-Josée Dumont
DOI: 10.1039/C7PY02052J
Manipulation of polymer branching density in phosphine-sulfonate palladium and nickel catalyzed ethylene polymerization
Bangpei Yang, Shuoyan Xiong, Changle Chen
DOI: 10.1039/C7PY01281K
Palladium-polymer nanoreactors for the aqueous asymmetric synthesis of therapeutic flavonoids
E. Lestini, L. D. Blackman, C. M. Zammit, R. J. Williams, M. Inam, B. Couturaud, R. K. O'Reilly
DOI: 10.1039/C7PY02050C
Polymer brush guided templating on well-defined rod-like cellulose nanocrystals
Ville Hynninen, Antoine Niederberger, André H. Gröschel
DOI: 10.1039/C7PY01814B
You might also like
What precautions should be taken when handling lithium chloride hydrate (1:1:1) (CAS: 16712-20-2)?
When handling lithium chloride hydrate (1:1:1) (CAS: 16712-20-2), it is importan...
Is 4-(4H-1,2,4-Triazol-4-yl)piperidine (CAS: 690261-92-8) safe?
4-(4H-1,2,4-Triazol-4-yl)piperidine is generally considered safe for use in phar...
How should waste containing 1,3-Thiazole-2-carboxamide (CAS: 16733-85-0) be handled?
Waste containing 1,3-Thiazole-2-carboxamide (CAS: 16733-85-0) should be collecte...
What regulatory guidelines apply to 5-(Difluoromethyl)-2-fluorobenzonitrile (CAS: 934175-58-3)?
5-(Difluoromethyl)-2-fluorobenzonitrile (CAS: 934175-58-3) is subject to regulat...
How is Methyl 3-acetamido-2-thiophenecarboxylate (CAS: 22288-79-5) typically synthesized?
Methyl 3-acetamido-2-thiophenecarboxylate can be synthesized by the reaction of ...
What is 4-Isoquinolinecarbonitrile (CAS: 34846-65-6)?
4-Isoquinolinecarbonitrile is a chemical compound with the CAS number 34846-65-6...
How should Methyl 1H-1,2,3-triazole-4-carboxylate (CAS: 877309-59-6) be stored?
Store Methyl 1H-1,2,3-triazole-4-carboxylate (CAS: 877309-59-6) in a cool, dry p...
What regulatory guidelines apply to 6-Bromo[1,3]thiazolo[5,4-b]pyridin-2-amine (CAS: 1160791-13-8)?
6-Bromo[1,3]thiazolo[5,4-b]pyridin-2-amine (CAS: 1160791-13-8) is subject to the...
Is (2S,3S)-2-Ammonio-3-(3,4-dihydroxyphenyl)-3-hydroxypropanoate (CAS: 23651-95-8) safe?
(2S,3S)-2-Ammonio-3-(3,4-dihydroxyphenyl)-3-hydroxypropanoate (CAS: 23651-95-8) ...
What are the physical and chemical properties of 7-bromo-3-methyl-3,4-dihydroquinazolin-4-one (CAS: 1293987-84-4)?
7-Bromo-3-methyl-3,4-dihydroquinazolin-4-one is a solid with a crystalline form....
Source Journal
Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.










![1-[4-(4-Methyl-1H-imidazol-1-yl)phenyl]ethanone structure 1-[4-(4-Methyl-1H-imidazol-1-yl)phenyl]ethanone structure](https://static.chemtradehub.com/structs/142/142161-53-3-7f55.webp)
![Ethyl 4-[8-chloro(5,5,6,6,7-~2~H_5_)-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-ylidene]-1-piperidinecarboxylate structure Ethyl 4-[8-chloro(5,5,6,6,7-~2~H_5_)-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-ylidene]-1-piperidinecarboxylate structure](https://static.chemtradehub.com/structs/102/1020719-57-6-37e2.webp)
![(1R,5R)-3-{[(2-Methyl-2-propanyl)oxy]carbonyl}-3-azabicyclo[3.1.0]hexane-1-carboxylic acid structure (1R,5R)-3-{[(2-Methyl-2-propanyl)oxy]carbonyl}-3-azabicyclo[3.1.0]hexane-1-carboxylic acid structure](https://static.chemtradehub.com/structs/116/1165450-63-4-bfe1.webp)

