Carbonyl sulfide (COS) is the most abundant and longest-lasting organic reduced sulfur compound in the atmosphere. Removing it is a critical and challenging aspect in desulfurization technology in order to comply with global restrictions on harmful emissions. Catalytic hydrolysis refers to the process whereby COS reacts with water under the influence of a catalyst to generate carbon dioxide and hydrogen sulfide. Due to its high conversion rate, minimal side reactions, no hydrogen consumption, and mature technology, it has emerged as the most crucial COS removal method at present. Since its inception in the 1940s, research on the catalytic hydrolysis of COS has witnessed encouraging progress over the past several decades. This review summarizes recent advancements in this field. In this review, the evaluation metrics, influencing factors, and reaction mechanism for the COS hydrolysis reaction are briefly introduced. The recent advancements in COS hydrolysis catalysts in recent years are emphasized. Additionally, the existing challenges and potential solutions in this field are also proposed. Finally, the future development directions for this research area are envisioned. The purpose of this review is to offer a reference for the subsequent design and research of high-activity and high-stability hydrolysis catalysts.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.3390/ma18051097 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Recent Developments in Catalytic Carbonyl Sulfur Hydrolysis.
Materials (Basel)
February 2025
College of Resources and Environment, Chengdu University of Information Technology, Chengdu 610225, China.
Carbonyl sulfide (COS) is the most abundant and longest-lasting organic reduced sulfur compound in the atmosphere. Removing it is a critical and challenging aspect in desulfurization technology in order to comply with global restrictions on harmful emissions. Catalytic hydrolysis refers to the process whereby COS reacts with water under the influence of a catalyst to generate carbon dioxide and hydrogen sulfide.
View Article and Find Full Text PDFSurface Modification of Organic Chromium-Free Tanned Leather Shavings and the Immobilization of Lipase.
Polymers (Basel)
March 2025
College of Bioresources Chemical and Material Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China.
Following the concept of "waste into resources", a mild and controllable light grafting technique was used to immobilize pancreatic lipase (PPL) in situ on modified organic, chromium-free tanned leather scraps to catalyze the hydrolysis of waste oil. The experimental results showed that immobilized PPL significantly improved the catalytic activity, operational stability, reusability, and storage stability compared to free PPL. Furthermore, the study evaluated the environmental compatibility of the system through biological risk assessment of soil extracts after degradation, indicating that the system has good environmental compatibility.
View Article and Find Full Text PDFBaicalein as a potent antifungal agent against : synergy with fluconazole and sustainable production through probiotic-mediated bioconversion.
Front Microbiol
February 2025
Faculty of Functional Foods and Wine, Shenyang Pharmaceutical University, Benxi, China.
Fungal infections, particularly those caused by , represent a significant global health concern, with drug resistance and biofilm formation posing considerable challenges to effective treatment. Baicalein, a flavonoid derived from baicalin found in , has demonstrated considerable antifungal efficacy. Moreover, the combination of baicalein and fluconazole demonstrated a notable synergistic effect.
View Article and Find Full Text PDFMining Thermophile Genomes for New PETases with Exceptional Thermostabilities using Sequence Similarity Networks.
Chembiochem
March 2025
Queen's University, Chemistry, 90 Bader Lane, K7L3N6, Kingston, CANADA.
Enzymatic hydrolysis of polyethylene terephthalate (PET) is a promising technology for advancing a circular PET economy. Several PET-degrading α/β hydrolases have been identified, but the full potential of this enzyme family to catalyze PET hydrolysis remains largely unexplored. To address this, sequence similarity networks were employed to investigate the α/β hydrolase fold-5 subfamily (IPR029059) for new PETases.
View Article and Find Full Text PDFDiverse evolutionary trajectories of carbapenemase: unraveling the impact of amino acid substitutions on β-lactam susceptibility and the role of avibactam in driving resistance.
mSystems
March 2025
Department of Laboratory Medicine, The First Affiliated Hospital of Chongqing Medical University, Yuzhong, Chongqing, China.
carbapenemases (KPCs) have evolved into over 245 distinct variants, with over one-third of variants exhibiting reduced susceptibility to ceftazidime-avibactam, while the underlying selection mechanisms remain elusive. To better elucidate these resistant phenotypes, we cloned 33 clinically described KPC variants (from KPC-2 to KPC-36) and 8 artificially created variants into a common plasmid vector and assessed their impact on β-lactam susceptibility. Strains expressing KPC-14, KPC-28, and KPC-31 exhibited increased resistance to ceftazidime and ceftazidime-avibactam but decreased resistance to carbapenems.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!