933047-52-0Relevant articles and documents
Instantaneous Sonophotocatalytic Degradation of Tetracycline over NU-1000@ZnIn2S4Core-Shell Nanorods as a Robust and Eco-friendly Catalyst
Abazari, Reza,Kirillov, Alexander M.,Morsali, Ali,Sanati, Soheila
, p. 9660 - 9672 (2021)
The universal pollution of diverse water bodies and declined water quality represent very important environmental problems. The development of new and efficient photocatalytic water treatment systems based on the Z-scheme mechanisms can contribute to tackling such problems. This study reports the preparation, full characterization, and detailed sonophotocatalytic activity of a new series of hybrid NU@ZIS nanocomposites, which comprise a p-n heterojunction of 3D Zr(IV) metal-organic framework nanorods (NU-1000) and photoactive ZnIn2S4 (ZIS) nanostars. Among the obtained materials with varying content of ZIS (5, 10, 20, and 30%) on the surface of NU-1000, the NU@ZIS20 nanocomposite revealed an ultrahigh catalytic performance and recyclability in a quick visible-light-induced degradation of the tetracycline antibiotic in water under sonophotocatalytic conditions. Moreover, increased activity of NU@ZIS20 can be ascribed to the formation of a p-n heterojunction between NU-1000 and ZIS, and a synergistic effect of these components, leading to a high level of radical production, facilitating a Z-scheme charge carrier transfer and reducing the recombination of charge carriers. The radical trapping tests revealed that ·OH, ·O2-, and h+ are the major active species in the sonophotocatalytic degradation of tetracycline. Possible mechanism and mineralization pathways were introduced. Cytotoxicity of NU@ZIS20 and aquatic toxicity of water samples after tetracycline degradation were also assessed, showing good biocompatibility of the catalyst and efficacy of sonophotocatalytic protocols to produce water that does not affect the growth of bacteria. Finally, the obtained nanocomposites and developed photocatalytic processes can represent an interesting approach toward diverse environmental applications in water remediation and the elimination of other types of organic pollutants.
Enhanced electrochemical oxygen and hydrogen evolution reactions using an NU-1000?NiMn-LDHS composite electrode in alkaline electrolyte
Abazari, Reza,Morsali, Ali,Sanati, Soheila
, p. 6652 - 6655 (2020)
A well-designed NU-1000?NiMn-LDHS (NU?LDHS) composite can offer efficient electrocatalytic performance with ultralow HER and OER overpotentials of 93 and 129 mV, respectively, at a current density of 10 mA cm-2 in 2 M KOH. Outstanding OER and HER activities of the composite could be attributed to the porosity and higher surface area of NU-1000 (NU), the layered structure of NiMn-LDHS (LDHS), abundant active sites in LDH, and synergistic interaction between NU and LDHS.
Material design for piezochromic luminescence: Hydrogen-bond-directed assemblies of a pyrene derivative
Sagara, Yoshimitsu,Mutai, Toshiki,Yoshikawa, Isao,Araki, Koji
, p. 1520 - 1521 (2007)
A novel design principle for materials showing piezochromic luminescence is proposed. Amide-substituted tetraphenylpyrene C6TPPy, composed of a planar fluorescent core and multiple hydrogen-binding sites, displays a remarkable change and restoration of its luminescence color by pressing with a spatula and heating, respectively. Copyright
An Ultra-Robust and Crystalline Redeemable Hydrogen-Bonded Organic Framework for Synergistic Chemo-Photodynamic Therapy
Yin, Qi,Zhao, Peng,Sa, Rong-Jian,Chen, Guang-Cun,Jian,Liu, Tian-Fu,Cao, Rong
, p. 7691 - 7696 (2018)
The low structural stability of hydrogen-bonded organic frameworks (HOFs) is a thorny issue retarding the development of HOFs. A rational design approach is now proposed for construction of a stable HOF. The resultant HOF (PFC-1) exhibits high surface area of 2122 m2 g?1 and excellent chemical stability (intact in concentrated HCl for at least 117 days). A new method of acid-assisted crystalline redemption is used to readily cure the thermal damage to PFC-1. With periodic integration of photoactive pyrene in the robust framework, PFC-1 can efficiently encapsulate Doxorubicin (Doxo) for synergistic chemo-photodynamic therapy, showing comparable therapeutic efficacy with the commercial Doxo yet considerably lower cytotoxicity. This work demonstrates the notorious stability issue of HOFs can be properly addressed through rational design, paving a way to develop robust HOFs and offering promising application perspectives.
A lanthanide-organic crystalline framework material encapsulating 1,3,6,8-tetrakis(: P -benzoic acid)pyrene: Selective sensing of Fe3+, Cr2O72- and colchicine and white-light emission
Li, Jin Xiao,Guan, Qing Lin,Wang, Yu,You, Zi Xin,Xing, Yong Heng,Bai, Feng Ying,Sun, Li Xian
supporting information, p. 1446 - 1454 (2020/02/11)
A facile strategy was used to construct a series of composite materials with color-tunable and white light emission by encapsulating 1,3,6,8-tetrakis(p-benzoic acid)pyrene (H4TBAPy) into framework material [Eu(MCTCA)1.5(H2O)2]·1.75H2O (Eu-MCTCA), which is synthesized based on Eu(NO3)3·6H2O and 5-methyl-1-(4-carboxylphenyl)-1H-1,2,3-triazole-4-carboxylic acid (H2MCTCA). A slight adjustment of the emission color can be easily fulfilled by simply altering the concentration of H4TBAPy or regulating the excitation wavelength. Notably, white light emitting Eu-MCTCA@H4TBAPy can be realized by encapsulating H4TBAPy with a concentration of 0.75 mM, when the excitation wavelength is 350 nm. Furthermore, based on the favorable luminescence and stable structure of Eu-MCTCA@H4TBAPy in water or organic solvents, Eu-MCTCA@H4TBAPy can be used as a potential luminescent probe for detecting Fe3+, Cr2O72- and colchicine.
