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Truslove, Stephen; Bruce, Elliott L.; Yiu, Humphrey H. P.
doi: 10.1002/jctb.70029pmid: N/A
The transition to a net‐zero economy requires revolutionary change to the fundamentals of economies around the world. The need to decarbonise processes affects almost every aspect of industry and society, with energy, transport, and manufacturing making up some of the most polluting sectors. Many complementary solutions must be realised to surmount such challenges, and one suggestion is the greater use of hydrogen as a fuel or feedstock. For this to occur, hydrogen production must be significantly scaled up without introducing so many emissions as to counteract improvements made downstream. Although hydrogen gas can be found in underground deposits, almost all hydrogen is produced industrially from fossil fuels, notably via steam reforming process (grey hydrogen), which is usually associated with a considerable carbon footprint. Alternative production pathways with a lower carbon footprint have been developed for large‐scale production. This perspective examines the impact of large‐scale grey, blue, and green hydrogen production methods and their viability as sources of a cleaner fuel for heat and electricity generation. © 2025 Society of Chemical Industry (SCI).
Chen, Jinghui; Zhong, Wenhan; Afzal, Shahzad; Zeb, Liaqat; Zhang, Ming; Luo, Ligang; Zhang, Dong; Ding, Tao; Xu, Liheng; Mahmood, Aqeel
doi: 10.1002/jctb.7882pmid: N/A
Chlorinated organic pollutants (COPs) have garnered significant attention due to their propensity for easy migration, difficulty in degradation, carcinogenicity and volatility, all posing a threat to ecological safety and human health. Effective removal of COPs from the environmental matrix is crucial. Fe‐loaded biochar (Fe@BC) is an artificial synthetic carbonaceous composite. Fe@BC has been widely studied for its potential for COP removal. On the one hand, Fe can activate oxidants to generate oxidizing free radicals, while, on the other, it can also serve as a reducing agent to dechlorinate and reduce COPs. Furthermore, biochar as a substrate for Fe can prevent the agglomeration of Fe0, and its porosity facilitates the adsorption of COPs. The utilization of Fe@BC effectively enhances the removal efficiency of COPs by the synergetic advantages of both Fe0 and biochar. No review paper has been published on Fe@BC for COP removal in water. Hence, it is crucial to summarize the state‐of‐the‐art progress of Fe@BC production, performance efficiency and mechanisms for COP removal. Thus, in this mini‐review, we have systematically provided the recent research on removing COPs by Fe@BC and prospects for promoting the practical use of Fe@BC for that purpose, which may provide insight into sustainable wastewater treatment and groundwater management. © 2025 Society of Chemical Industry (SCI).
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