Enhancing CO Capture and Conversion to Formic Acid via a Membrane-Photocatalytic Hybrid System with ZnO-ZnS Heterojunction Catalyst.

A combined approach for CO capture and photoreduction provides a comprehensive solution to address exhaust emissions. This study aims to develop a hybrid system integrating membrane contactor and photocatalytic technology for CO conversion to formic acid by optimizing the synthesis of ZnO-ZnS heterojunction photocatalysts through controlled variations in precursor concentrations and calcination temperatures. The catalysts are characterized to assess their structural and optical properties, photocatalytic activity, stability and reaction kinetics.

Light-driven methane conversion: unveiling methanol using a TiO/TiOF photocatalyst.

A TiO/TiOF composite has been synthesized through a hydrothermal method and characterized using X-ray diffraction, Raman spectroscopy, UV-vis diffuse reflectance, SEM-EDX, TEM, and N adsorption-desorption isotherms. The percentage of exposed facet [001] and the composition of TiO/TiOF in the composite were controlled by adjusting the amount of HF and hydrothermal temperature synthesis. Three crucial factors in the photocatalytic conversion of methane to methanol, including the photocatalyst, electron scavenger (FeCl), and HO were evaluated using a statistical approach.

Recent Advances in Photocatalytic Oxidation of Methane to Methanol.

Methane is one of the promising alternatives to non-renewable petroleum resources since it can be transformed into added-value hydrocarbon feedstocks through suitable reactions. The conversion of methane to methanol with a higher chemical value has recently attracted much attention. The selective oxidation of methane to methanol is often considered a "holy grail" reaction in catalysis.

Photocatalytic Degradation of Palm Oil Mill Effluent (POME) Waste Using BiVO Based Catalysts.

Disposal of palm oil mill effluent (POME), which is highly polluting from the palm oil industry, needs to be handled properly to minimize the harmful impact on the surrounding environment. Photocatalytic technology is one of the advanced technologies that can be developed due to its low operating costs, as well as being sustainable, renewable, and environmentally friendly. This paper reports on the photocatalytic degradation of palm oil mill effluent (POME) using a BiVO photocatalyst under UV-visible light irradiation.

Photocatalytic Technology for Palm Oil Mill Effluent (POME) Wastewater Treatment: Current Progress and Future Perspective.

The palm oil industry produces liquid waste called POME (palm oil mill effluent). POME is stated as one of the wastes that are difficult to handle because of its large production and ineffective treatment. It will disturb the ecosystem with a high organic matter content if the waste is disposed directly into the environment.

Role of defects on TiO/SiO composites for boosting photocatalytic water splitting.

Defect engineering of semiconductor photocatalysts is considered as an evolving strategy to adjust their physiochemical properties and boost photoreactivity of the materials. Here, hydrogenation and UV light pre-treatment of TiO/SiO composite with the ratio of 9 : 1 (9TiO/1SiO) were conducted to generate Ti and non-bridging oxygen holes center (NBOHC) defects, respectively. The 9TiO/1SiO composite exhibited much higher photocatalytic water splitting than neat TiO and SiO as a consequence of the electronic structure effects induced by the defect sites.