Quantitative analysis of research literature on degradation of pollutants by Fenton and Fenton-like AOPs based on CiteSpace

CiteSpace was used to visualize the knowledge map structure of literatures related to " Fenton and Fenton-like AOPs " in CNKI and WOS databases, in order to identify the direction and focus of future research and provide some reference and reference for relevant degradation technology decision-making. The results show that:1) Domestic literature on the degradation of pollutants by Fenton and Fenton-like oxidation process showed obvious fluctuations，the overall growth trend was slow; the general trend of the number of published papers abroad was a slow growth, after 2020, the number of foreign publications had steadily increased. 2) The group of authors in this field at home and abroad was generally small concentration and large dispersion, which needs to strengthen cooperation. Research on Fenton and fenton-like advanced oxidation technology (AOPs) degraded pollutants in our country had not yet formed a stable core authors group, while foreign research in this field had formed a stable core authors group. 3) From the perspective of research institutions, whether at home or abroad, universities, research institutes and laboratories of relevant ministries and commissions were the main undertakers of scientific research, and cooperation among research institutions need to be strengthened. 4) In China, there was more cooperation in the research field of pollutants degraded by Fenton and Fenton-like AOPs, while in foreign countries, although there was overlap, the scope was small, and some clusters were scattered, indicating that there was less cooperation in the keyword research of each cluster. 5) The time span of domestic research in this field was not large, and even the situation of research interruption occurred in a few years, while the time span of foreign research was more continuous.