Molten Salt Modulation of Potassium-Nitrogen-Carbon for the Breaking Kinetics Bottleneck of Photocatalytic Overall Water Splitting and Environmental Impact Reduction.

Sluggish interfacial water dissociation and the O evolution reaction (OER) kinetics are the main obstacles that limit the photocatalytic overall water-splitting performance. A molten salt modulation of potassium-nitrogen-carbon is herein demonstrated as the formation of highly crystalline potassium-doped poly(triazine imide) (KPTI). The in situ X-ray diffraction patterns and theoretical calculation show that the KCl melt can significantly reduce the free energy for the polycondensation of triazine building blocks owing to the formation of a kinetically stable KPTI.

Enhanced Visible-Light HO Production over Pt/g-CN Schottky Junction Photocatalyst.

Photocatalytic for hydrogen peroxide (HO) production is thought as a promising technology owing to its clean and green properties with the cheap and easily available raw materials of HO and O. Herein, Pt/g-CN Schottky junction photocatalysts with ultralow Pt contents (0.025-0.

Generation of singlet oxygen over CeO/K,Na-codoped g-CN for tetracycline hydrochloride degradation over a wide pH range.

Singlet oxygen (O) species have been widely studied in catalytic oxidation and photodynamic therapy (PDT) and so on due to their unique properties, such as their long lifetime, wide pH tolerance, relative long migration distance, and high selectivity. In this work, O could be generated over CeO/K,Na-codoped g-CN heterojunction (CeO/CN) fabricated using a molten salt method in the presence of HO in dark for the first time, which was used as a Fenton-like catalyst to degrade the emerging tetracycline hydrochloride (TCH) pollutant through a Fenton-like reaction. A significantly-enhanced catalytic activity was observed over CeO/CN compared with g-CN and commercial CeO.

Comparison of the effects of different pretreatments on the structure and enzymatic hydrolysis of Miscanthus.

Miscanthus is regarded as a desired bioenergy crop with enormous lignocellulose residues for biofuels and other chemical products. In this study, the effect of different pretreatments (including microwave, NaOH, CaO, and microwave + NaOH/CaO) on sugar yields was investigated, leading to largely varied hexose yields at 4.0-73.

Preparation of multi-dimensional (1D/2D/3D) carbon/g-CN composite photocatalyst with enhanced visible-light catalytic performance.

A multi-dimensional (1D/2D/3D) carbon/g-CN composite photocatalyst (CCN) was successfully prepared by a facile method with carbon from cheap absorbent cotton wool. The activities and stabilities of CCN were evaluated by photo-degrading Rhodamine B (RhB) under visible light irradiation. The effect of carbon content in composite on the catalytic activities was investigated.

Hierarchically porous SiO/C hollow microspheres: a highly efficient adsorbent for Congo Red removal.

Hierarchically porous SiO/C hollow microspheres (HPSCHMs) were synthesized by a hydrothermal and NaOH-etching combined route. The adsorption performance of the prepared HPSCHMs was investigated to remove Congo Red (CR) in aqueous solution. The results show that the synthesized composite possesses a hollow microspherical structure with hierarchical pores and a diameter of about 100-200 nm, and its surface area is up to 1154 m g.

Efficient decomposition of formaldehyde at room temperature over Pt/honeycomb ceramics with ultra-low Pt content.

Pt/honeycomb ceramic (Pt/HC) catalysts with ultra-low Pt content (0.005-0.055 wt%) were for the first time prepared by an impregnation of honeycomb ceramics with Pt precursor and NaBH4-reduction combined method.

Hierarchically macro-mesoporous Pt/γ-Al2O3 composite microspheres for efficient formaldehyde oxidation at room temperature.

Room temperature catalytic oxidation by noble metals is considered to be the most promising strategy for the removal of HCHO, which is one of the major indoor air pollutants. Hierarchically macro-mesoporous structured Pt/γ-Al2O3 hollow spheres with open and accessible pores were synthesized and used for catalytic oxidative decomposition of HCHO at room temperature. The prepared composite hollow spheres showed higher catalytic activity than the conventional nanoparticle supports, which is mainly due to their hierarchical macro-mesoporous structure facilitating diffusion of reactants and products, and the high dispersion of accessible catalytic Pt nanoparticles.

Enhanced performance of NaOH-modified Pt/TiO2 toward room temperature selective oxidation of formaldehyde.

Pt/TiO(2) catalysts with various Pt loadings (0.05-2 wt %) were prepared by a combined NaOH-assisted impregnation of titania with Pt precursor and NaBH(4)-reduction. The thermal catalytic activity was evaluated toward catalytic decomposition of formaldehyde (HCHO) vapor in the presence of toluene under ambient conditions.

Enhanced photocatalytic H2-production activity of TiO2 using Ni(NO3)2 as an additive.

Herein, we for the first time report the production of H2 using Degussa P25 TiO2 powder (P25) from a mixed aqueous solution of methanol and Ni(NO3)2. The effect of the amount of Ni(NO3)2 on the photocatalytic H2-production activity of TiO2 was investigated and discussed. The results indicate that the photocatalytic H2-production activity of TiO2 is significantly enhanced in the presence of Ni(NO3)2.