Studies are undertaken to examine graphene oxide intercalation into self-assembled j-aggregate porphyrin structures fluorescence lifetime and fluorescence anisotropy imaging were applied along with scanning electron microscopy to study the structure and optical properties of a graphene oxide/tmpyp. Read porphyrin counter anion in imidazolium-modified graphene-oxide, carbon on deepdyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. Graphene oxide with covalently linked porphyrin antennae relevant spectroscopic techniques why let homework stress you click the button, place an order and relax, somebody will do the rest for you. Three kinds of graphene oxide (go)–porphyrin composites were facilely assembled by means of non-covalent interaction it was found that the functional groups linked on the peripheries of the porphyrins had an important influence on the combination mode of porphyrin and go, and also the properties of go–porphyrin composites 5, 10, 15, 20-tetrakis(4-hydroxyphenyl)porphyrin (thpp) was easy.
Single- and multiwalled carbon nanotubes have been covalently functionalized with free-base porphyrin the quantity of porphyrin linked to the surface was determined from thermogravimetric and uv−vis analysis. A comparative reaserch of the assembly of different porphyrin molecules on graphene oxide (go) and reduced graphene oxide (rgo) was carried out, respectively baskaran d, mays jw, zhang xp, bratcher ms (2005) carbon nanotubes with covalently linked porphyrin antennae: photoinduced electron transfer j am chem. Studies are undertaken to examine graphene oxide intercalation into self-assembled j-aggregate porphyrin structures fluorescence lifetime and fluorescence anisotropy imaging were applied along with scanning electron microscopy to study the structure and optical properties of a graphene oxide/tmpyp hybrid composite material. Fluorescence of porphyrin was effectively quenched by go indicated the efficient photoinduced electron transfer (pet) from porphyrin moieties to go, which porphyrin acts as energy absorbing and electron transferring antennae and go serves as an efficient electron acceptor of the system.
Porphyrin counter anion in imidazolium-modified graphene-oxide which denote that some interaction takes place between the porphyrin counter anion and graphene-oxide finally, the energy gap has been calculated from the reduction and oxidation potentials of the hybrid material ms bratchercarbon nanotubes with covalently linked. While prior studies by other groups have linked porphyrins to graphene sheets, they have done so using a more traditional chemistry route in which graphene oxide is reacted with the porphyrin in solution. The optical limiting (ol) properties of single-layer graphene dispersions in different solvents were studied using a nanosecond pulse laser the graphene dispersions, especially in heavy-atom solvents, showed much better ol properties compared with referenced c60-toluene solution. Moghimi a, abdouss m, ghooshchi g, preconcentration of pb(ii) by graphene oxide with covalently linked porphyrin adsorbed on surfactant coated c18 before determination by faas, int j bio-inorg hybd. Covalently linked donor−acceptor dyads involving palladium(ii) and platinum(ii) porphyrins as triplet sensitizers and fullerene as an acceptor have been newly synthesized.
View yanfei xu’s profile on linkedin, the world's largest professional community yanfei has 2 jobs listed on their profile see the complete profile on linkedin and discover yanfei’s. Therefore, covalently linked h 2 p with go can act as an energy absorbing and electron transporting antennae, while go acts as an electron acceptor unit, in a hybrid system where the porphyrin moiety resides near to the surface of the go framework. Paper title: graphene oxide with covalently linked porphyrin antennae: synthesis,characterization and photophysical properties atr-ir spectroscopy has been used in the study in order to characterise the o–h, c=o, and c–oh bands present in graphene oxide which have characteristic vibrations. 4yingte wang,yujuanzhang, tingxia chen,zhengming dong,xiaoyue chang,and yong zhanga photoinduced electron transfer system by graphene oxide non-covalently linked porphyrin antennae in water ，electrochemistry, 83(11) 950-955(2015.
Oxide with covalently linked porphyrin (go–h 2 np) adsorbed on surfactant coated c 18 pre-concentration, functionalized graphene oxide, covalently linked porphyrin (go–h 2 np), faas where as cr(vi) is a potentially carcinogenic agent1 the significant drawbacks of cr(vi) are breathing disturbances, liver and digestion malfunctions. Ty - jour t1 - excited states of light-harvesting systems based on fullerene/graphene oxide and porphyrin/smaragdyrin au - cárdenas-jirón,g. Samples in this paper, a graphene oxide with covalently linked graphene oxide with covalently linked porphyrin (go–h2p) was added to 500 ml acetone containing 50 mg mse and refluxed for 24 h the product was filtered off and washed with deionized water and dried at room temperature.
Read the influence of combination mode on the structure and properties of porphyrin–graphene oxide composites, colloids and surfaces a: physicochemical and engineering aspects on deepdyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. Ying-te wang, xiang-wei wang, yong zhang ， enhancement of palladium-porphyrin room temperature phosphorescence by alkaline earth metal in deoxycholate aggregates solution ， journal of photochemistry and photobiology a: chemistry 2011 . A novel composite photocatalyst, reduced graphene oxide (rgo) modified superlong tio 2 nanotubes (ltnts) with length of about 500 nm, has been successfully synthesized by improved hydrothermal process and heating reflux method the prepared rgo–ltnt catalysts have been characterized and analyzed. This cited by count includes citations to the following articles in scholar graphene oxide with covalently linked porphyrin antennae: synthesis, characterization and photophysical properties covalent functionalization of carbon nanohorns with porphyrins: nanohybrid formation and photoinduced electron and energy transfer.
Title = graphene oxide with covalently linked porphyrin antennae: synthesis, characterization and photophysical properties, abstract = the successful covalent functionalization of graphene oxide (go) with 5-(4-aminophenyl)-10,15,20-triphenyl-21,23h-porphyrin (h2p) has been reported. The nonlinear optical (nlo) and optical limiting (ol) properties of covalently linked graphene-porphyrin composite materials were investigated using z-scan technique in nanosecond regime we observed enhanced nlo and ol properties of graphene-porphyrin composites in comparison to the individual graphene and porphyrins. Graphene oxide with covalently linked porphyrin antennae: synthesis, characterization and photophysical properties nikolaos karousis, atula s d sandanayaka, taku hasobe, solon p economopoulos, evangelia sarantopoulou, nikos tagmatarchis.