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636-94-2Relevant academic research and scientific papers
The influence of different coordination environments on one-dimensional Cu(II) coordination polymers for the photo-degradation of organic dyes
Hussain, Navid,Bhardwaj, Vimal K.
, p. 7697 - 7707 (2016)
Three new Cu(ii) coordination polymers, namely, {[Cu3(L1)(NO3)2(DMF)(H2O)]·3(DMF)}n (1), [Cu3(L1)(Cl)2(DMF)2]n (2) and [Cu3(L2)(NO3)4(H2O)4]n (3), were synthesized from pyridine-2,6-dicarbohydrazide based imine linked tritopic ligands. All the complexes were characterized using elemental analysis, IR, UV-vis spectroscopy and ESI-MS. The solid state structures of complexes 1-3 were determined using single crystal X-ray crystallography. The complexes contain trinuclear copper units connected through different anions that lead to the formation of one dimensional (ID) chain structures. Depending upon the anion of the copper salt and donor atoms of the ligands used in complexation, a small variation in the structures was observed. In complex 1, the trinuclear copper units are connected by phenoxo-bridging (μ2-O-) along with one coordinated water molecule, whereas complex 2 is connected through chloride bridging (μ2-Cl) and complex 3 is connected through nitrate ions (μ-[O-N-O]) along with four water molecules. Photo-catalytic activities of the synthesized complexes (1-3) were investigated. All the complexes were found to be photo-catalytically active; however, the distinct coordination environment of the metal ions (i.e. difference in the coordinated water molecules and donor sites of ligands) played a significant role in the catalytic activities. Therefore, this study presents comparative photo-catalytic studies of different coordination environments of metal ions in one-dimensional Cu(ii) coordination polymers. The results provide a potential pathway for the rational design of more efficient photo-catalysts.
A visible-light-driven solid state photo-Fenton reagent based on magnetite/carboxylate-rich carbon spheres
Luo, Zhijun,Tang, Hongjun,Qu, Lingling,Han, Tingting,Wu, Xiangyang
, p. 5710 - 5713 (2012)
A visible-light-driven solid state photo-Fenton reagent based on magnetite/carboxylate-rich carbon spheres (MCRCSs) has been one-step fabricated via hydrothermal carbonization (HTC) process. Without using H2O 2, MCRCSs exhibit excell
Carboxyfullerene decorated titanium dioxide nanomaterials for reactive oxygen species scavenging activities
Yang, Kai-Cheng,Zheng, Jia-Huei,Chen, Yen-Ling,Lee, Kuen-Chan,Cho, Er-Chieh
, p. 53025 - 53033 (2016)
Titanium dioxide nanomaterials offer superior protection for human skin against ultraviolet light. However, some reports have indicated that they might be associated with adverse effects such as cytotoxicity or reactive oxygen species (ROS) under UV-irrad
Synthesis of ZnO Nanoparticles Assisted by N Sources and their Application in the Photodegradation of Organic Contaminants
da Silva, Gelson T. S. T.,Carvalho, Kele T. G.,Lopes, Osmando F.,Gomes, Eliziana S.,Malagutti, Andréa R.,Mastelaro, Valmor R.,Ribeiro, Caue,Mour?o, Henrique A. J. L.
, p. 3795 - 3804 (2017)
A modified polymeric precursor method assisted by N sources (urea or melamine) was used to obtain anion-doped ZnO nanoparticles. The influence of these molecules on the physical-chemical and photocatalytic properties of the as-synthesized samples was inve
Improving photocatalytic reduction of 4-nitrophenol over ZrO2-TiO2 by synergistic interaction between methanol and sulfite ions
Guerrero-Araque, Diana,Acevedo-Pe?a, Próspero,Ramírez-Ortega, David,Gómez, Ricardo
, p. 12655 - 12663 (2017)
The effect of two sacrificial agents (methanol and sodium sulfite) on the photocatalytic reduction of 4-nitrophenol employing a ZrO2-TiO2 photocatalyst is reported. The experimental results showed a decrease in the generation of OH r
Microwave-Assisted Synthesis of Perovskite SrSnO3 Nanocrystals in Ionic Liquids for Photocatalytic Applications
Alammar, Tarek,Hamm, Ines,Grasmik, Viktoria,Wark, Michael,Mudring, Anja-Verena
, p. 6920 - 6932 (2017)
Nanosized SrSnO3 photocatalysts have been successfully synthesized by microwave synthesis in various ionic liquids (ILs) followed by a heat treatment process to optimize the materials' crystallinity. The influence of the ILs with various cation
New insights into fluorinated TiO2 (brookite, anatase and rutile) nanoparticles as efficient photocatalytic redox catalysts
Wang, Yafang,Li, Liping,Huang, Xinsong,Li, Qi,Li, Guangshe
, p. 34302 - 34313 (2015)
The synthesis of anionic-modified nanostructures with specific properties is often hindered by difficulty in tuning the material compositions without sacrificing phase purity and sample uniformity. Here, we present a novel methodology using NH4
Correlations between photocatalytic activity and chemical structure of Cu-modified TiO2–SiO2 nanoparticle composites
?i?mar,?tangar, U. Lavren?i?,Ar?on
, p. 155 - 160 (2017)
Copper-modified TiO2–SiO2 photocatalysts were prepared by sol–gel method based on organic copper, silicon and titanium precursors. Copper concentration varied from 0.1 to 3.0?mol%. A widely applied model reaction of photocatalytic ox
Facile Synthesis of Carbon Dots@2D MoS2 Heterostructure with Enhanced Photocatalytic Properties
Li, Ning,Liu, Zhengtang,Liu, Ming,Xue, Chaorui,Chang, Qing,Wang, Huiqi,Li, Ying,Song, Zhenchao,Hu, Shengliang
, p. 5746 - 5752 (2019)
To better utilize carbon dots (CDs) as efficient photocatalysts, an excellent strategy of constructing CDs@MoS2 heterostructure is presented. Here a facile sonication-hydrothermal method is utilized to synthesize CDs@MoS2. Such heter
Magnetic nano-sized cadmium ferrite as an efficient catalyst for the degradation of Congo red in the presence of microwave irradiation
Shi, Wen,Liu, Xueyan,Zhang, Tingting,Wang, Qiong,Zhang, Lei
, p. 51027 - 51034 (2015)
A highly active nano-sized CdFe2O4 catalyst was prepared by a hydrothermal process and characterized by X-ray diffraction (XRD), scanning electronic microscopy (SEM), BET specific surface area method, and vibrating sample magnetometer (VSM) at room temperature. Application of the microwave-induced catalytic degradation method in the abatement of Congo red (CR) using the magnetic catalyst was studied. The degradation ratio of CR with CdFe2O4 reached 94.4% with 10 min microwave irradiation (MW), proving CdFe2O4 to be an excellent microwave catalyst. The intermediate products from CR degradation were investigated by UV-Vis, HPLC and ion chromatography. The reaction kinetics, effects of different ion species (SO42-, NO3-, HCO3-, and CH3COO-), pH of the solution, dye initial concentration, dosage of catalyst, as well as degradation mechanism were comprehensively studied. Radical trapping studies and the fluorescence technique revealed the holes (h+) and hydroxyl radicals (OH) were involved as the main active species in the reaction. The band structure of CdFe2O4 was analyzed by UV-Vis diffuse reflectance spectroscopy and Mott-Schottky measurements. The mechanism of the degradation was discussed in detail. This work can provide an effective technology for dye wastewater treatment.
