Research progress on detection and adsorption of metal ions in water by biomass-based materials
With the rapid economic growth,heavy metal ion pollution in water shows a serious impact on industrial production and human life.Biomass-based materials,as environmentally friendly materials,are widely used for the removal of various owing to their high yield,renewable,and abundant functional groups.However,most biomass-based adsorbents show a single adsorption function,which greatly limits their application in water.It is found that the fluorescence detection method can be used for the rapid capture and determination of metal ions in water because of its simplicity,high sensitivity,and strong selectivity.Recently,a series of bifunctional biomass materials integrating detection and adsorption can be obtained by physical and chemical modification of biomass materials,which have a broad application prospect in the treatment of wastewater pollutants.In this review,the development and preparation of cellulose,chitosan,and sodium alginate-based bifunctional fluorescent green materials by several researchers in recent years,as well as the applications for the detection and adsorption pollutants in water,are reviewed,and the related detection and adsorption mechanisms are analyzed.It is found that the excellent adsorption properties of bifunctional fluorescent sensors are related to the abundant functional group and pore structure of biomass materials.The fluorescence properties of bifunctional fluorescent sensors were associated with the different fluorescent probes.Based on the above properties,various bifunctional biomass materials can be prepared by doping different fluorescent probes for the detection and adsorption of different metal ions.Furthermore,these bifunctional fluorescent sensors prepared with biomass as raw materials can not only avoid the secondary pollution problem of the environment caused by fluorescent probes but also greatly reduce the cost of synthetic fluorescent sensors.Finally,the current problems and future research directions of bifunctional biomass-based fluorescent materials integrating detection and adsorption are summarized and prospected.
environmental engineeringbiomassheavy metaldetection and adsorptionmechanism
NETL
NSTL
万方数据
维普
