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A method IR-CGC (infrared-cryogenic gas chromatography) was established directly through the combination of infrared spectrum (IR) and cryogenic gas chromatography (CGC) to measure the electrolytic separation factor (α) between protium and deuterium. The n1,liq(D)/n2,liq(H) ratio of alkalic aqueous solution after electrolysis was tested quantitatively by the IR method, and the n1,gas(D)/n2,gas(H) ratio of mixed gases from electrolysis was determined by CGC. Then α of different electrode materials were obtained according to the formula of electrolytic separation factor. As a result, it provides an accurate, simple, feasible, suitable approach for evaluating the electrolytic protium-deuterium separation ability of different electrode materials, which is helpful for searching excellent hydrogen isotopes separation materials.

Photocatalytic activities of three composites, namely nickel foam/Ag-TiO2, nickel foam/Ag-ZnO, and nickel foam/Ag-WO3, were evaluated for toluene degradation in a home-made cuboid photoreactor. Scanning electron microscopy and energy dispersive spectrometry were employed to characterize these photocatalysts. The photodegradation effects of the three photocatalysts peaked under 60% relative humidity, with nickel foam/Ag-TiO2 exhibiting the highest rate of photocatalytic toluene degradation. Controlling humidity could enhance the photocatalytic toluene degradation activities of the three composites, which are significantly affected by a wider band gap. In this study, a dynamic model was proposed and analyzed according to the time-dependent photodegradation of toluene.