Thermophilic membrane biofilm reactor (TMBR) for elemental mercury (Hg0) and NO removal in simulated flue gas was investigated at oxygen content of 6% and 60 °C. The performance, the microbial community structures, gene function and the mechanism for Hg0 and NO removal in the TMBR were evaluate...

This work demonstrates bacterial oxidation of mercury (Hg0) coupled to nitric oxide (NO) reduction in a denitrifying membrane biofilm reactor (MBfR). In 93 days' operation, Hg0 and NO removal efficiency attained 90.7% and 74.1%, respectively. Thauera, Pseudomonas, Paracoccus and Pannonibact...

Recently, technological and industrial advances uninterruptedly cause the release of hazardous and toxic gases that are harmful to human life; as a result gas sensing devices that are highly sensitive and selective to such gases are in a high demand. Presently, gas sensors based on p-type NiO ar...

The advancement of heterostructured visible-light active metal oxide based semiconductor photocatalysts have received an enormous consideration in the field of environmental remediation due to their excellent growth with unique surface morphology, tunable properties, suitable for absorbing more ...

The effect of Eu-substitution on the density and thermoelectric properties of ternary sulfide Ce3–xEuxS4 (0≤x≤0.8) compacts was investigated. Ce3–xEuxS4 powders were prepared via the sulfurization of the oxide using CS2 gas at 1473 K. The pressureless sintered Ce3–xEuxS4 compacts in the atm...

Hydrogen sulfide (H2S) has been verified as an important biological mediator in human physiological activities, but its rapid and accurate detection is remaining a challenge. Based on our early work, Eu-containing polyoxometalate/ionic liquid-type gemini surfactant hybrid nanoparticles fabricate...

Dysprosium doped di-strontium magnesium di-silicate namely Sr2MgSi2O7:Dy3+ phosphor was prepared by the solid state reaction method. The phase structure, surface morphology, particle size, elemental analysis was analyzed by using XRD, TEM, EDX and FTIR techniques. The EDX and FTIR spectra confir...

The dielectric properties of vacuum-deposited dysprosium oxide films have been studied in the audio-frequency range (102–104 Hz) at various temperatures (78–373 K). The dielectric constant (6.7) was independent of film thickness for thicker films (d > 1000 Å). The capacitance was dependent bot...

The Dy3+-doped YInGe2O7 phosphor was synthesized by solid-sate reaction and calcined at 1300 °C for 10 h in air. The structure and optical properties of YInGe2O7:Dy3+ phosphors have been investigated. XRD results indicated that all of the diffraction peaks can be attributed to the monoclinic YI...

A β-NiAl alloy with normal purity, a S-doped and a Dy and S co-doped β-NiAl alloys were prepared by arc-melting and their corresponding S contents were less than 20 × 10−6, 33 × 10−6 and 22 × 10−6, respectively. The isothermal oxidation behavior of the alloys at 1200 °C was investigated an...

In this research, a novel one-pot fabrication platform was developed for the preparation of Dy3+-doped iron oxide nanoparticles (Dy-IONPs). In the procedure, Dy-IONPs are electro-deposited from an additive-free aqueous mixed solution of iron(III) nitrate, iron(II) chloride and dysprosium chlorid...

Indium antimonide has been grown on the (111) face of cleaved and of polished BaF2 by molecular beam epitaxy (MBE). X-ray and Nomarski microscopic examination indicate high quality films. Films were doped n and p type with silicon and beryllium. The dopant incorporation is close to that establis...

The infra-red spectra of the chromates (V) of calcium, strontium and barium have been measured from 2000 to 400 cm−1. The results, and those for the corresponding chromates (VI), are interpreted in terms of the site symmetry of the anion, and it is shown that, in the chromates (VI), the anion is...

Redox transformation of NdCrVO4 involved by insertion/desertion of protons was examined by XRD, XPS, in situ FT-IR and fuel cell tests. It was found that NdCrO4 caused bulk reduction with H2 gas at around 400 °C, changing to amorphous Nd(III)–Cr(III) hydroxide phase. This hydroxide phase, howe...

A smart release chrome-free inhibiting system is utilised in an organic coating system to inhibit cathodic disbondment of hot dip galvanised steel. The non-toxic smart release cation system is relatively cheap, easy to process and highly effective. An in-situ scanning Kelvin probe is used to ass...

In an investigation of the artists' materials used by P. S. Krøyer the contents of the tube colours found in Krøyer's painting cabinet were examined. In most cases, the results of the pigment analyses were as expected based on our knowledge of artists' colours used in the late 180...

High-pressure X-ray diffraction has been used to probe the behavior of the superionic conductor silver mercury iodide (Ag2HgI4) at pressures up to 5 GPa and at temperatures from 295 to 370 K. Significant changes in the diffraction spectra, indicative of structural transitions, are observed aroun...

The present investigation reports the synthesis and fluoride removal characteristics of zirconium (IV)-hexamethylenediamine (ZrHMDA). The ion-exchanger was prepared using environment friendly sol-gel method by mixing of molar proportion of aqueous solution of zirconium oxychloride (0.1 M) and aq...

The effect of curing temperature on the structure and corrosion resistance of an ammonium zirconium carbonate (AZC) coating on galvanized steel was investigated as an alternative to chromate. The corrosion resistance of the AZC coating was excellent when cured at 80 °C, but it decreased with an...

The simple conversion of zirconium phosphonate sorbent materials, with known affinity for lanthanide elements, to durable ceramic waste forms via thermal treatment has been demonstrated. The use of zirconium phosphonate enables both removal of targeted elements from spent nuclear fuel and immobi...