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We report on the successful synthesis of cadmium sulfide (CdS) nanocages by laser ablation of bulk Cd target in thioacetamide (TAA) solution.The CdS nanocages exhibit obvious interior hollow spaces and distinctive porous-shell structures.After laser ablation of Cd target in liquid condition,the unique structure should be attributed to the initial formation of Cd micro-gas bubble via a model of micro-explosive boiling model.Surprisingly,the obtained CdS nanocages can provide a super-adsorption of methyl blue (MB) solution.The maximum adsorption capacity reaches up to 11813.3 mg/g,which is much higher than that reported in many previous researches.Without using any complicated stabilizers or soft directing agents,the pure CdS nanocages fabricated by laser ablation will serve as advanced absorbents in further research.