Inorganic Chemicals Industry ›› 2020, Vol. 52 ›› Issue (4): 96-99.doi: 10.11962/1006-4990.2019-0375

• Catalytic Materials • Previous Articles     Next Articles

Preparation and photocatalytic degradation property of cadmium hydroxide transformed from cadmium carbonate

Chen Qingchun1,2,3,Bang Yu1,2,Wan Wenjie1,2,Yan Lean1,2,Deng Huiyu1,2   

  1. 1.State Key Laboratory of Nuclear Resources and Environment,East China University of Technology,Nanchang 330013,China
    2.Department of Materials Science and Engineering,East China University of Technology
    3.State Key Laboratory of Chemical Resource Engineering
  • Received:2019-10-15 Online:2020-04-10 Published:2020-04-22

Abstract:

Precipitated cadmium carbonate(P-CdCO3) was prepared by direct blend method with sodium carbonate solution poured into cadmium sulfate solution.Then,the as-prepared P-CdCO3 was used as raw materials to produce cadmium hydro-xide[Cd(OH)2] nanomaterials with sodium hydroxide as transforming agent.The structure and morphology of P-CdCO3 and Cd(OH)2 nanomaterials were characterized by powder X-ray diffraction(XRD) and field-emission scanning electron micro-scope(FESEM).Results showed that the structure of P-CdCO3 was destroyed and the morphology of completely transformed Cd(OH)2 was irregular sphere assembled by sheets and totally different from P-CdCO3. Photocatalytic degradation of Rhoda-mine B under irradiation of UV light tests demonstrated that the transformed products had better photocatalytic degradation property than P-CdCO3 and different transformed products had various degradation efficiencies.The Rhodamine B could be degraded completely in 180 min under irradiation of 300 W mercury lamp with addition of best transformed product when 20 mg of transformed product was added into 50 mL of 8 mg/L Rhodamine B solution and the system was stirred for 120 min in dark to reach adsorption equilibrium.

Key words: CdCO3, Cd(OH)2, ion-exchange method, photocatalytic degradation performance

CLC Number: