Research progress on synthesis and regulation of lignocellulose-based carbon quantum dots
In recent years,various lignocellulosic biomasses have been used as green carbon sources to prepare carbon quantum dots,which are widely used in anti-counterfeiting,imaging,catalysis and other fields.Preparing carbon quantum dots from lignocellulosic biomasses can achieve low-cost,large-scale,and rapid preparation.However,the structure of lignocellulosic biomass is complex.The synthesis process of carbon quantum dots is affected by the type of raw materials and preparation process,and its fluorescence properties are closely related to the core structure and surface morphology.These factors make the preparation and regulation process of lignocellulose-based carbon quantum dots difficult to carry out precisely,and it is important to investigate the formation mechanism of lignocellulosic-based carbon quantum dots and the regulating mechanism for the quality improvement.In view of this,this paper reviews the formation methods and process of lignocellulose-based quantum dots,analyzes the advantages and disadvantages of various preparation and modification methods,discusses in-depth their synthesis mechanisms and regulation methods,and presents an outlook on their problems and challenges.
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