Facile fabrication of AgI/SbO heterojunction photocatalyst with enhanced visible-light driven photocatalytic performance for efficient degradation of organic pollutants in water.

The construction of heterojunction is considered as a promising approach to designing highly effective visible-light driven photocatalysts. In this research, the AgI/SbO heterojunction photocatalyst was synthesized by a simple in situ deposition-precipitation procedure, which was supported by XPS results. Among the prepared samples, the 60% AgI/SbO samples exhibited the best ARG degradation ratio (98.

Tar-free fuel gas production from high temperature pyrolysis of sewage sludge.

Pyrolysis of sewage sludge was studied in a free-fall reactor at 1000-1400 °C. The results showed that the volatile matter in the sludge could be completely released to gaseous product at 1300 °C. The high temperature was in favor of H2 and CO in the produced gas.

Pyrolysis of ramie residue: kinetic study and fuel gas produced in a cyclone furnace.

The thermal decomposition behavior of ramie residue (RR) and the characteristics of fuel gas produced in a cyclone furnace were studied. The pyrolysis kinetics was investigated using thermogravimetric analysis (TGA) at heating rates of 5-20°C/min. The results showed that RR mainly decomposed between 250 and 390°C, and the apparent activation energy ranged from 200 to 258 kJ/mol.