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Novel CoZnO2 and SnO2 doped CoZnO2 nanocomposites (NCs) were synthesized by the co‐precipitation method successfully and analyzed using UV‐Vis, FT‐IR, XRD and SEM analysis etc. The UV‐Vis studies confirmed the absorption values of CoZnO2 and SnO2 doped CoZnO2 at 359 and 365 nm respectively and the obtained FT‐IR peaks at 569 and 538 cm−1 revealed the presence of metal‐oxygen bonds successfully. The crystalline size was found to be 21.46 and 40.35 nm. In SEM analysis, CoZnO2 showed the densified un‐uniform particles whereas SnO2 doped CoZnO2 NCs seemed to be bunch of particles combined together. The synthesized NCs have proved the photocatalytic property by confirming the degradation efficiency of 72.22 and 82.22 % against methylene blue (MB) under sunlight irradiation as natural source at the time interval of 120 mins. It is revealed by the enhancement in the reduction of 4‐nitrophenol by changing the parameters and the efficiency percentage of 89.46 and 94.52 % at 18 and 16 mins respectively. The adsorption study was carried out by changing different concentrations of targeted pesticide like glyphosate and the percentage (%) efficiency was calculated to be 90.90, 83.53, 78.49 %, and 91.02, 88.23, 80.64 % for CoZnO2 and SnO2 doped CoZnO2 effectively. The high inhibition against DPPH was found to be 42.7 and 53.7 % at 500 μg mL−1 and the maximum zone of inhibition was found to be 22 mm against to 240 μg mL−1 of E. coli. Therefore, the current study proposed that the CoZnO2 and SnO2 doped CoZnO2 have good capability for bio‐chemical catalytic applications. [ABSTRACT FROM AUTHOR]

Treatment of cis‐[Ru(acac)2(CH3CN)2] (acac−=acetylacetonate) with 1.5 equiv. of corresponding bidentate nitrogen and sulfur ligands in ethanol gave a series of bis(acetylacetonato) ruthenium(II/III) complexes [(acac)2Ru(dimbpy)](PF6) (dimbpy=4,4′‐dimethyl‐2,2′‐bipyridine) (1), [(acac)2Ru(phen)] (phen=o‐phenanthroline) (2), [(acac)2Ru(opd)] (opd=o‐phenylenediamine) (3), [(acac)2Ru(4‐Bropd)] (4‐Bropd=4‐bromo‐o‐phenylenediamine) (4) and [(acac)2Ru(S2CNMe2)] (5), respectively. Complexes 1–5 were characterized by FT‐IR, NMR and UV‐Vis spectroscopies along with their electrochemical properties. The structures of complexes 1–5 have been unambiguously established by single crystal X‐ray crystallography. The photocatalytic properties for hydrogen production by water splitting of complexes 1–5 under visible light (λ>420 nm) were also investigated in the paper. [ABSTRACT FROM AUTHOR]

Zinc Oxide (ZnO) hierarchical microstructures with diverse morphologies were prepared through a simple one-step hydrothermal method with zinc chloride and sodium hydroxide as source materials, and citric acid as the modifying agent. The structure and morphology of the samples were studied through X-ray diffraction, field emission scanning electron microscopy, transmission electron microscopy, and Brunauer-Emmett-Teller specific surface area determination. The morphology of the samples was easily regulated by changing the concentration of citric acid. Branchy structures, porous flowers, porous microspheres, solid flowers, solid flower spheres, and solid spheres of ZnO were obtained. The porous structures obtained with 150-200 mmol · L−1 citric acid showed excellent photocatalytic activities for the degradation of methylene blue under UV irradiation. A possible regulation mechanism of citric acid in ZnO crystals was proposed based on the experimental results. [ABSTRACT FROM AUTHOR]

In this study, an in‐situ approach was used to synthesise zinc oxide nanoparticles on the surface of cotton fabric. The effect of alkaline pre‐ and after‐treatment and Zn2+ concentration was studied on the morphological, structural, thermal, photocatalytic, and antibacterial properties of loaded cotton fabrics. Scanning electron microscopy, energy dispersive X‐ray spectroscopy, X‐ray diffractometer, thermogravimetric analysis, and attenuated total reflection Fourier transform infrared spectrometer were used to characterise the properties of loaded cotton fabrics. Alkaline after‐treatment of cotton fabric presented more dispersed zinc oxide nanoparticles, and an increase in Zn2+ concentration led to form agglomerated nanoparticles on the surface of cotton fibres. The loaded cotton fabrics with zinc oxide nanoparticles presented an inhibition zone against Staphylococcus aureus and Escherichia coli. In addition, the stain of methylene blue on the surface of loaded samples was degraded after irradiated under visible light. [ABSTRACT FROM AUTHOR]

Monodispersive indium oxyhydroxide ( InOOH) nanospheres were successfully synthesized by an acetic acid-assisted solvothermal method. The structure and morphology of InOOH nanospheres were characterized by means of X-ray diffraction, scanning electron microscope, and transmission electron microscope. The obtained InOOH nanospheres have a porous structure with diameters of 400-650 nm and a relative large specific surface area of 60.63 m2/g. Introducing a trace amount of acetic acid into the reaction system can effectively adjust the reaction rate, realizing the morphology and phase tuning of InOOH nanospheres. The InOOH nanospheres exhibit excellent photocatalytic degradation of Rhodamine B under UV light irradiation, which is ascribed to the porous structures and high-Brunauer-Emmett-Teller surface area of InOOH nanospheres. [ABSTRACT FROM AUTHOR]

Mn-doped CuO nanosheets were prepared through a hydrothermal method to enhance their photocatalytic property. The structural and morphological features were monitored by using X-Ray diffraction (XRD) and field emission scanning electron microscopy (FESEM) with energy dispersive spectroscopy (EDS). UV-vis absorption spectra showed the enhance absorption performance both in UV and visible light region. The band gaps were also calculate and the minimum value was 1.25 eV. The photocatalytic activity was investigated by the degradation of methylene blue (MB), which indicated that the photoactivity of samples depended on the amount of Mn2+ incorporated into the CuO lattice. The improved performance of photocatalysts can be attributed to enhanced light absorption and lower electron-hole recombination. [ABSTRACT FROM AUTHOR]

Two new ternary metal coordination polymers (CPs), namely, {[Co2(BTC)(L)]·0.25H2O}n (1) and [Ag(HIPA)(L)]n (2) (H4BTC = 1,2,3,4‐butanetetracarboxylic acid, H2IPA = isophthalic acid, L = 1,6‐bis(5,6‐dimethylbenzimidazol‐1‐yl)hexane) were hydrothermally synthesized and characterized by elemental analysis, infrared spectroscopy, single‐crystal X‐ray diffraction, and powder X‐ray diffraction (PXRD). 1 exhibits unusual 2D network with point symbol {43.63}2{46.66.73}. 2 possesses 1D chain structure which is further extended into a 3D supramolecular network via O–H···O hydrogen‐bonding and π–π stacking interactions. 1 and 2 can selectively detect benzaldehyde (BZH), Fe3+ (just 1) and Cr2O72− (just 2) ions in water via the luminescence quenching process. Furthermore, the photocatalytic activities of two CPs were evaluated for degradation of methylene blue (MB) and methyl violet (MV) under UV irradiation. [ABSTRACT FROM AUTHOR]

By one‐step hydrothermal method, pure and Ce‐doped CuO nanostructures (NSs) are successfully synthesized. In this work, C4H6CuO4·H2O and Ce(NO3)3·6H2O are used as the precursor and the dopant. The results of X‐ray diffraction and energy dispersive spectroscopy demonstrate that small portions of Ce ions are incorporated into the crystal lattice of CuO NSs and substitute Cu ions with the formation of a tiny impurity (Cu2O). Field emission scanning electron microscopy images display that the nanoellipsoid morphology of pure CuO transforms to an apparently rough surface with larger sizes of the morphology by doping with Ce element. Compared to pure CuO NSs, the UV–vis absorption of Ce‐doped CuO NSs is remarkably enhanced, which exhibits a strong ability of light absorption both in the 200–380 nm and in the visible region (380–800 nm). The measured band‐gaps of pure and Ce‐doped CuO NSs with different amounts of Ce ions are 2.07 and 1.93, 2.03, 2.02 eV, respectively. The photocatalytic test shows that the photocatalytic activity of Ce‐doped CuO NSs is eminently better than for pure CuO NSs, with the photodegradation of methylene blue solution rising up to 90.04%. [ABSTRACT FROM AUTHOR]