Well-designed composite photocatalysts are of increasing concern due to their enhanced catalytic performance compared a single component. Here, photocatalyst composed PbMoO4 (PMO) and poly-benzothiadiazole (BBT, D-A-conjugated polymer) was successfully synthesized by BBT polymerization on the surface PMO. The resultant BBT-PMO with heterojunction structure represented an ability reduce highly t...

Nitrogen fixation (diazotrophy) has recently been demonstrated in several methanogenic archaebacteria. To compare the process in an archaebacterium with that in eubacteria, we examined the properties of diazotrophic growth and nitrogenase activity in Methanosarcina barkeri 227. Growth yields with methanol or acetate as a growth substrate were significantly lower in N(2)-grown cultures than in N...

The effects of vanadate, molybdate, and azide on ATP phosphohydrolase (ATPase) and acid phosphatase activities of plasma membrane, mitochondrial, and soluble supernatant fractions from corn (Zea mays L. WF9 x MO17) roots were investigated. Azide (0.1-10 millimolar) was a selective inhibitor of pH 9.0-ATPase activity of the mitochondrial fraction, while molybdate (0.01-1.0 millimolar) was a rela...

BACKGROUND Sodium chlorate (NaClO3) is extensively used in the paper industry, but its production uses strictly regulated highly toxic Na2Cr2O7 to reach high hydrogen evolution reaction (HER) Faradaic efficiencies. It therefore important find alternatives either replace or reduce concentration. RESULTS The concentration can be significantly reduced by using Na2MoO4 as an electrolyte co-additive...

Iron molybdate catalysts were prepared using a sol gel route with malonic acid and oxalic their performance for the selective oxidation of methanol to formaldehyde was evaluated.

Cyanobacterial mats are laminated microbial ecosystems which occur in highly diverse environments and which may provide a possible model for early life on Earth. Their ability to produce hydrogen also makes them of interest from a biotechnological and bioenergy perspective. Samples of an intertidal microbial mat from the Elkhorn Slough estuary in Monterey Bay, California, were transplanted to a...

Gadolinium molybdate is a classical example of an improper ferroelectric and ferroelastic material. It established that the spontaneous polarization arises as secondary effect, induced by structural instability in paraelectric phase, which leads to unit cell doubling formation polar axis. However, previous x-ray diffraction (XRD) studies on gadolinium have been restricted limited ability includ...

Molybdate sulfuric acid (MSA) has been prepared and used as catalyst for the Biginelli synthesis of some quinazolinones/thiones under solvent-free conditions. The catalyst loading is low and it shows recyclability. This method has advantages such as avoidance of the organic solvents, high yield of pure products, short reaction times and operational simplicity.

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