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采用溶剂热法制备了Fe(Ⅱ)掺杂TiO2光催化剂,并采用X射线衍射仪(XRD)、X射线光电子能谱仪(XPS)、比表面仪(BET)、扫描电镜(SEM)对其进行表征。考察了光照时间、FeSO4·7H_2O加入量、pH和Cr(Ⅵ)初始质量浓度对采用该催化剂处理含Cr(Ⅵ)电镀废水效果的影响。得到了较佳的工艺条件为:反应时间120 min,FeSO4·7H_2O加入量0.3 g,p H 4.0,Cr(Ⅵ)初始质量浓度100 mg/L。该条件下Cr(Ⅵ)的去除率可达81.4%,催化剂的去除效率为35.2 mg/g。
Abstract：A Fe(Ⅱ)-doped TiO2 photocatalyst was synthesized solvothermally and characterized using X-ray diffractometer(XRD), X-ray photoelectron spectroscope(XPS), BET specific surface area analyzer, and scanning electron microscope(SEM). The effects of illumination time, FeSO4·7 H_2O dosage, pH, and initial mass concentration of Cr(Ⅵ) on the removal of Cr(Ⅵ) from an electroplating wastewater using the photocatalyst were studied. The process conditions were optimized as follows: illumination time 120 min, FeSO4·7 H_2O dosage 0.3 g, pH 4.0, and initial mass concentration of Cr(Ⅵ) 100 mg/L. The removal efficiency of Cr(Ⅵ) was up to 81.4% thereunder, and the specific removal efficacy of the photocatalyst was 35.2 mg/g.
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基本信息:
DOI：10.19289/j.1004-227x.2021.02.008
中图分类号:O643.36;O644.1;X781.1
引用信息:
[1]李伟.Fe(Ⅱ)掺杂TiO_2光催化剂处理电镀废水中的六价铬[J].电镀与涂饰,2021,40(02):124-128.DOI:10.19289/j.1004-227x.2021.02.008.
2021-01-30
2021-01-30