Structural Modification Strategies, Interfacial Charge-Carrier Dynamics, and Solar Energy Conversion Applications of Organic-Inorganic Halide Perovskite Photocatalysts.

Over the past few decades, organic-inorganic halide perovskites (OIHPs) as novel photocatalyst materials have attracted intensive attention for an impressive variety of photocatalytic applications due to their excellent photophysical (chemical) properties. Regarding practical application and future commercialization, the air-water stability and photocatalytic performance of OIHPs need to be further improved. Accordingly, studying modification strategies and interfacial interaction mechanisms is crucial.

A feasible approach for azo-dye methyl orange degradation in siderite/HO assisted by persulfate: Optimization using response surface methodology and pathway.

Siderite was applied to the binary oxidant system of siderite-catalyzed hydrogen peroxide (HO) and enhanced with persulfate (PS). In the absence of PS, methyl orange (MO) almost could not be degraded by the siderite/HO process. However, adding PS significantly improved the capacity of MO to oxidize azo-dye.

Improved photocatalytic conversion of high-concentration ammonia in water by low-cost Cu/TiO and its mechanism study.

Platinized TiO (Pt/TiO) as a benchmark photocatalyst shows superior photocatalytic performance in environmental remediation. In order to reduce the cost of photocatalyst for practical use, a series of cooper loaded TiO (Cu/TiO) photocatalysts were prepared by photoreduction method and compared with pure TiO and Pt/TiO in terms of overall ammonia conversion efficiency and selective oxidation. The as-prepared Cu/TiO samples were characterized and analyzed by physicochemical instrumental measurements.

Degradation of bisphenol A by persulfate coupled with dithionite: Optimization using response surface methodology and pathway.

The degradation efficiency of bisphenol A (BPA) was investigated in the process of persulfate (PS) coupled with dithionite (DTN) as a function of concentration of BPA, PS, DTN and solution pH. A simple response surface methodology (RSM) based on central composite design (CCD) was employed to determine the influence of individual and interaction of above variables and the optimum processing parameters. It is satisfactory of a quadratic model with low probabilities (<0.