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Three kinds of sulfonated cross-linked chitosan (SCCR) immobilized with metal ions of Cu2+, Fe3+ and Zn2+ individually were synthesized and firstly used as solid acid catalysts in the hydrolysis of bamboo biomass. FTIR spectra showed that metal ions had been introduced into SCCR and the N-metal ions coordinate bound was formed. The particle sizes of these catalysts were about 500–1000μm with a pore...
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