Rational design of BiSnO/BiOI S-scheme heterojunction for visible photocatalytic oxidation of emerging pollutants.

The construction of an S-scheme heterostructure is considered as a promising strategy for enhancing photocatalytic performance. Herein, a three-dimensional BiOI (BOI) microsphere decorated with BiSnO (BSO) nanoparticles was prepared for the first time via a simple ultrasonic-assisted electrostatic self-assembly strategy and used for the degradation of 2,4-dinitrophenylhydrazine. 3 wt% BiSnO/BiOI has the highest degradation activity (93.

Biochemical and Structural Insights into a Thiamine Diphosphate-Dependent α-Ketoglutarate Decarboxylase from Cyanobacterium NIES-843.

α-Ketoglutarate decarboxylase is a crucial enzyme in the tricarboxylic acid cycle of cyanobacteria, catalyzing the non-oxidative decarboxylation of α-ketoglutarate to produce succinate semialdehyde and CO. The decarboxylation process is reliant on the cofactor of thiamine diphosphate. However, this enzyme's biochemical and structural properties have not been well characterized.

Effect of BiWO/g-CN composite on the combustion and catalytic decomposition of energetic materials: An efficient catalyst with g-CN carrier.

An effective strategy involving a suitable carrier is needed to improve the dispersion, combustion and catalytic performances of catalyst nanoparticles. Herein, a BiWO/g-CN composite employing g-CN as the catalyst carrier was prepared by a one-step in situ hydrothermal method, which was used as the combustion catalyst of solid propellants. The catalyst's structure, morphology and its catalytic decomposition on several energetic materials were characterized by a series of analyses.

Efficient activation of peroxydisulfate by g-CN/BiMoO nanocomposite for enhanced organic pollutants degradation through non-radical dominated oxidation processes.

Persulfate-assisted photocatalysis technology is considered to be a promising method for the rapid and efficient degradation of organic pollutants in water environment remediation. In this study, a novel g-CN/BiMoO/PDS (CN/BMO/PDS) system is constructed and applied in 2,4-dinitrophenylhydrazine (2,4-DPH) degradation under visible light irradiation. Compared with the CN/BMO system, the degradation rate of 2,4-DPH is significantly improved from 59.

The rapid H release from AlH dehydrogenation forming porous layer in AlH/hydroxyl-terminated polybutadiene (HTPB) fuels during combustion.

Although the motivation of AlH enhancing combustion were recognized in many research, the promotion mechanism have been rarely explored. Herein, a previously unreported porous layer mechanism when combustion were determined in HTPB/AlH fuels by SEM, thermo-analysis and a new simplified calculation method, owing to rapidly released gas phase H from AlH dehydrogenation exposing in melting layer. 5/10% 40-80 μm and 10% 80-200 μm AlH-HTPB formulas show the regression rate increase by, 25.

SVM-based synthetic fingerprint discrimination algorithm and quantitative optimization strategy.

Synthetic fingerprints are a potential threat to automatic fingerprint identification systems (AFISs). In this paper, we propose an algorithm to discriminate synthetic fingerprints from real ones. First, four typical characteristic factors-the ridge distance features, global gray features, frequency feature and Harris Corner feature-are extracted.