吴光辉, 杨莉, 周韦. TiO2光催化还原Hg(Ⅱ)[J]. 南昌航空大学学报(自然科学版), 2004, 18(2): 49-51,70.
引用本文: 吴光辉, 杨莉, 周韦. TiO2光催化还原Hg(Ⅱ)[J]. 南昌航空大学学报(自然科学版), 2004, 18(2): 49-51,70.
shu
WU Guang-hui, YANG Li, . The Photocatalytic Reduction of TiO2 on Hg(Ⅱ)[J]. Journal of nanchang hangkong university(Natural science edition), 2004, 18(2): 49-51,70.
Citation: WU Guang-hui, YANG Li, . The Photocatalytic Reduction of TiO2 on Hg(Ⅱ)[J]. Journal of nanchang hangkong university(Natural science edition), 2004, 18(2): 49-51,70.
shu

TiO2光催化还原Hg(Ⅱ)

The Photocatalytic Reduction of TiO2 on Hg(Ⅱ)

    摘要
  • 摘要: 采用溶胶-凝胶法制备TiO2粉体,考察了它当铬离子存在时对汞离子溶液的光催化还原效果.结果表明,当TiO2的用量为2g/L、汞初始浓度为7μg/mL时,光催化还原效率最高.在体系中通入N2保护,还原率明显提高.用无定形TiO2作为光催化剂,还原率不稳定.

     

    Abstract: TiO2 powder photocatalyst was prepared by using sol-gel method.Its photocatalytic reduction efficiency on Hg(Ⅱ) solute was investigated.The results demonstrated that photocatalytic reduction efficiency was highest when TiO2=2g/L,Hg(Ⅱ)ini=7μg/mL.The reduction efficiency was greatly promoted when N2 was blown,when anatase TiO2 was regarded as photocatalyst.

     

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