In this study, yttrium-doped CeO2 with a broom-like porous hierarchical structure was successfully prepared by a simple template-free hydrothermal method with cerium nitrate hexahydrate and yttrium nitrate hexahydrate as original materials. Through systematic experiments, the different effects o...

We report a facile and novel approach to prepare yttrium-doped CeO2 with a hollow sphere hierarchical structure by a simple hydrothermal method with cerium nitrate hexahydrate and yttrium nitrate hexahydrate as original materials and polystyrene microsphere as a soft-template. Through systematic...

Yttrium modified Ni-based double-layered hydroxides were tested as novel catalysts in dry methane reforming. The catalysts were characterized by XRF, BET analysis, XRD, TPR-H2, TPD-CO2, TGA/DSC-MS, H2 chemisorption and TEM. Co-precipitation with yttrium (III) nitrate hexahydrate resulted in incr...

The production of I-131 for use in medicine can be accomplished by the neutron irradiation of tellurium, typically in the form of TeO2. Unfortunately, the literature contains conflicting data concerning the I-131 yield as a function of neutron fluence, target mass, irradiation time and post-irra...

For the first time tellurium has been purified by means of plasma-enhanced chemical transport reaction with intermediate formation of tellurium hydride (H2Te) and the following its thermal decomposition with formation of high-purity tellurium and hydrogen. Recently developed direct interaction o...

Hypervalent iodine oxidation of some 2,4-dihydroxyacetophenones (2a–d) with C6H5I (OAc)2 -KOH/MeOH providing a novel route to 2-hydroxy-3-iodo-4-phenoxyacetophenones (3a–d) via the rearrangement of iodonium ylides is reported.

In this study, production of n-butyl levulinate from furfuryl alcohol was investigated using KCC-1/Pr-SO3H as an efficient heterogeneous catalyst. The catalyst was prepared and characterized using FT-IR, N2 adsorption/desorption, scanning electron microscopy (SEM), transmission electron microsco...

An Fe modified USY catalyst was built for ethanolysis of furfuryl alcohol to ethyl levulinate. Characterization results confirmed that Fe species was existed in the form of Fe2O3, and Fe/USY is modified by Fe2O3 in two aspects, viz., the strong acidic sites were sharply reduced, and also a large...

The conversion of furfuryl alcohol, a highly versatile biomass-derived platform molecule, into a large variety of bio-products, including ethers, lactones and levulinates, has been evaluated in alcohol media using different solid acid catalysts, such as commercial zeolites, sulfonic acid-functio...

Dendritic fibrous nanosilica (DFNS) was used as an efficient support to prepare a series of Al/DFNS/Pr-SO3H catalysts with different Si/Al molar ratios. The textural properties, morphology, structural feathers, acidity, and heterogeneous nature of the catalysts were characterized. The Al/DFNS/Pr...

The catalytic transformation of furfuryl alcohol and hexose into value-added chemicals have been investigated with a series of polymer-based catalysts including poly(styrenesulfonic acid) (PSS), graphite oxide-doped poly(styrenesulfonic acid) (PSS-GO), and graphite-doped poly(styrenesulfonic aci...

The esterification of furfuryl alcohol (FA) and castor oil fatty acid (COFA) at 3:1 molar ratio, by immobilized Candida antarctica Lipase B (NS 435 from Novozyme) in a solvent free system gave a maximum yield of 88.64% (%w/w) at 5 h. Performance of the FA-COFA ester plasticized Ethyl Cellulose (...

Catalyzing furfuryl alcohol and epoxy simultaneously with a suitable catalyst plays a key role in the preparation of high-performance blends. Herein, methyltetrahydrophthalic anhydride was utilized to cure furfuryl alcohol/epoxy resins, which reacted with epoxy firstly, then catalyzed the furan ...

Levulinate esters are important chemical compounds usually obtained by esterification of levulinic acid derived from cellulose. We studied the synthesis of levulinate esters from furfuryl alcohol using graphite oxide (GO) and reduced graphite oxide (rGO) catalysts. The GO and rGO provided close ...

An unexpected DDQ-promoted ring-opening reaction of N-chloroacetyl-tetrahydroisoquinoline under ball milling conditions was revealed during the synthesis of Praziquantel. A variety of N-acyl-tetrahydroisoquinolines were then tested to further investigate the reaction, and plausible reaction mech...

In this research, a new colorimetric method for the determination of oxalate using curcumin nanoparticles (CURNs) in the presence Fe (III) is introduced. The method is based on the inhibitory effect of oxalate ion on the reaction of (CURNs) with Fe (III) in acidic media. This reaction was monito...

Schwertmannite (Sch), a poorly crystalline iron mineral, shows high sorption capacity to As(V). In this study, the effects of UV irradiation and oxalate on the dissolution of pure Sch, Sch with adsorbed As(V) [Sch*-As(V)] and subsequent mobilization of As(V) were investigated at pH 3.0. Under UV...

The vibrational spectra of iron(II) and iron(III) oxalates are reported and molecular structures of D2h and D3h, respectively, are found to be consistent with the spectral assignments. The characterisation of these oxalates is important in the area of lichen environmental biodeterioration of san...

Two oxalate-bridged binuclear iron(III) complexes, [(FeLAPMe)2(μ-ox)] (1) and [(FeLAPOMe)2(μ-ox)] (2), in which H2LAPMe and H2LAPOMe are pyridine-based di-methyl and tert-butyl methoxy substituted aminophenol ligands respectively, were prepared. Both compounds have been characterized by X-ray ...

Thallium (Tl) is a non-essential, highly toxic element having Tl(I) and Tl(III) two redox states. Tl(III) is more toxic to organisms than Tl(I) but is less of attention. The objective of this study was to investigate the reason of Tl(III) instability in the presence of plant. The content of Tl(I...