污泥基碳材料研究现状及热点趋势—基于文献计量学的共现图谱分析

Research status and hot trend of sludge based carbon materials:Based on the analysis of co-occurrence spectrum of literature metrology

为探明国内外污泥基碳材料的研究现状、热点以及发展趋势,给相关研究领域的科研工作者和决策者提供思路,本文采用文献计量学方法对Web of Science核心集和CNKI数据库收录的25年间的污泥基碳材料文献进行了统计分析.结果表明:1998—2022年在该领域发文量共2413篇,发文量总体呈逐年增加的趋势;中国发文量最多,占总量的32.79%,远超其他国家,但篇均被引频次相对较低,研究的中坚力量集中在西班牙和美国,篇均被引分别为52.31、55.82;发文量前三的期刊分别是Bioresource Technology、Science of the Total Environment和Water Management;研究热点为通过直接碳化法或活化法等制备污泥基碳材料,对材料进行改性处理后应用于废水污染物、气体吸附等方面的研究并探寻其反应过程的吸附(静电作用、氢键作用、孔隙扩散作用等)及催化氧化机理(活性氧的鉴别及作用等),未来应注重对改性方法和改性材料的探索,进一步明晰应用过程中与目标污染物的反应机理,对环境效应进一步研究,把握污泥基碳材料的环境风险与归趋,对材料的稳定性和可重复利用性进行评价,发展再生/回用技术.

To explore the research status,focuses,development trends of sludge-based carbon materials at domestic and abroad,and provide ideas for researchers and decision-makers in related research fields,this paper adopts the bibliometric method to statistically analyze the literature on sludge-based carbon materials in the 25 years of the Web of Science core collection and CNKI database.The results show that a total of 2413 articles were published in this field from 1998 to 2022,with a general trend of annual increase in the number of articles published;China has the largest number of publications far surpassing other countries,accounting for 32.79%of the total,but the citation frequency of articles is relatively low,and the major force of the research is concentrated in Spain and the United States,with average citations of 52.31 and 55.82,respectively;the top three journals in terms of publications are Bioresource Technology,Science of the Total Environment and Water Management;the research focus is the preparation of sludge-based carbon materials by direct carbonization or activation,etc.,the modification of the material is applied to wastewater pollutants,gas adsorption and other aspects,and explore the reaction process of adsorption(electrostatic interaction,hydrogen bonding effect,pore diffusion effect,etc.)and catalytic oxidation mechanism(identification and function of active oxygen species etc.);in the future,emphasis should be placed on the exploration of modification methods and modified materials,further clarification of the reaction mechanism with target pollutants in the application process,further research on environmental effects,understanding the environmental risks and trends of sludge-based carbon materials,estimate the stability and reusability and develop the regeneration/reuse technologies of the materials.