Research Progress on Adsorption of Organic Pollutants by Carbon-Based Materials Mediated by Physiochemical Properties and Structures
Large amounts of organic contaminants enter the environment along with industrial and agricultural production activities,most of which could be adsorbed on natural or artificial carbon-based materials.In addition to the apparent non-ideal adsorption behavior,queries such as the coexistence of numerous adsorption mecha-nisms under the complex impact of environmental factors have been a hot topic in the environmental field for many years.The combination of theoretical calculation and experimental study can effectively explore the influ-ence of the structure of carbon-based materials on their adsorption of organic pollutants and explain the adsorp-tion mechanism from the microscopic perspective.The two-dimensional plane,three-dimensional pore and ma-trix of carbon-based particles are described by theoretical calculation,which provides more comprehensive infor-mation for understanding the process and mechanism of adsorption of organic pollutants by carbon-based materi-als.Based on the physicochemical properties and structure of carbon-based materials,this paper summarizes the mechanism and process of adsorption of organic contaminants by natural and artificial carbon-based materials and describes the effects of physicochemical properties of carbon-based materials(element composition,func-tional group type,pH value and surface charge properties)on their adsorption of organic pollutants.The mecha-nism and process of adsorption of organic contaminants by carbon-based materials under the mediation of two-dimensional(focusing on the plane structure of carbon-based materials)and three-dimensional structures(fo-cusing on the internal pore structure and aggregate of carbon-based materials)are analyzed.Finally,the pros-pects for describing the process of organic pollutant adsorption by carbon-based materials more accurately are proposed.The intensive study will provide a theoretical basis for fully understanding organic pollutants'environ-mental behavior and advancing practical engineering applications for carbon-based materials.
万方数据
维普
