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To overcome the limitation of powder TiO 2 , the TiO 2 -impregnated glutaraldehyde-crosslinked alginate beads (TIGCAB) were prepared. The TIGCAB were characterized by DC, DBM, SEM, BET, XRD, Raman and TG. These synthesized beads were applied to reduce toxic Cr(VI) to Cr(III) in acidic aqueous solution under UV irradiation. In the system without TIGCAB or UV light, no chromium reduction...
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