Transformation of biomass wastes or residues into functional carbon materials is one of the main approaches to improve their added value and utilization rate. In this work, an example of discarded bamboo fibers was used to fabricate trimetallic functionalized 1D carbon composite with excellent electromagnetic wave (EW) absorption performances, via a simple solvothermal-carbonization method. When the thickness is below 2.0 mm, the composite has a minimum reflection loss (RLmin) of -61.6 dB and a specific RL value of -253 dB mg-1 mm-1, as well as an effective absorption band of 5.4 GHz at a low ...
