Figure - available from: Reviews on Advanced Materials Science
This content is subject to copyright. Terms and conditions apply.
Heliostat structure and main components: (a) support for mirror base, (b) reflective surfaces, (c) reflective surface support, (d) rotation axis, (e) inclination axis, and (f) support base.
Source publication
This work summarizes the different natural lighting systems applied for pollutant treatment systems using photocatalysis. The principles and fundamentals of the technologies used are revisited and examples of technologies most used for treatment either at the laboratory or at the pilot plant level are disclosed. This unveils a general panorama of t...
Similar publications
A pilot-scale biotrickling filter (BTF) was operated in counter-current flow mode under anoxic conditions, using diluted agricultural digestate as inoculum and as the recirculation medium for the nutrient source. The process was tested on-site at an agricultural fermentation plant, where real biogas was used. The pilot plant was therefore exposed t...
Citations
Photocatalytic solar hydrogen generation, encompassing both overall water splitting and organic reforming, presents a promising avenue for green hydrogen production. This technology holds the potential for reduced capital costs in comparison to competing methods like photovoltaic‐electrocatalysis and photoelectrocatalysis, owing to its simplicity and fewer auxiliary components. However, the current solar‐to‐hydrogen efficiency of photocatalytic solar hydrogen production has predominantly remained low at ≈1–2% or lower, mainly due to curtailed access to the entire solar spectrum, thus impeding practical application of photocatalytic solar hydrogen production. This review offers an integrated, multidisciplinary perspective on photocatalytic solar hydrogen production. Specifically, the review presents the existing approaches in photocatalyst and system designs aimed at significantly boosting the solar‐to‐hydrogen efficiency, while also considering factors of cost and scalability of each approach. In‐depth discussions extending beyond the efficacy of material and system design strategies are particularly vital to identify potential hurdles in translating photocatalysis research to large‐scale applications. Ultimately, this review aims to provide understanding and perspective of feasible pathways for commercializing photocatalytic solar hydrogen production technology, considering both engineering and economic standpoints.
The urgent need to reduce the carbon dioxide level in the atmosphere and keep the effects of climate change manageable has brought the concept of carbon capture and utilization to the forefront of scientific research. Amongst the promising pathways for this conversion, sunlight‐powered photothermal processes, synergistically using both thermal and non‐thermal effects of light, have gained significant attention. Research in this field focuses both on the development of catalysts and continuous‐flow photoreactors, which offer significant advantages over batch reactors, particularly for scale‐up. Here, we focus on sunlight‐driven photothermal conversion of CO2 to chemical feedstock CO and CH4 as synthetic fuel. This review provides an overview of the recent progress in the development of photothermal catalysts and continuous‐flow photoreactors and outlines the remaining challenges in these areas. Furthermore, it provides insight in additional components required to complete photothermal reaction systems for continuous production (e. g., solar concentrators, sensors and artificial light sources). In addition, our review emphasizes the necessity of integrated collaboration between different research areas, like chemistry, material science, chemical engineering, and optics, to establish optimized systems and reach the full potential of this technology.
