Mercaptosuccinic acid capped CdSe quantum dots were prepared in aqueous solution by using SeO2as selenium source and NaBH4as reductant. Then,the CdSe quantum dots bentonite luminescent material was prepared by mixing the CdSe quantum dots solution and organic bentonite under stirring. The obtained sample was characterized by photoluminescence spectra,scanning electron microscopy and X-ray diffraction. The spectra analysis results disclosed that the illuminant color of quantum dots bentonite composites was s...