Nanocomposites for Water Treatment - Maghemite as a photocatalyst

机译：用于水处理的纳米复合材料-磁赤铁矿作为光催化剂

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The treatment of waste water involves, amongst other processes, the removal of heavy metal ion pollutants and/or organic contaminants. As one component of a potential aluminosilicate nanocomposite for water treatment, we have demonstrated the effectiveness of using Maghemite (γ-Fe_2O_3) as a photocatalyst for the reduction of the aqueous pollutant chromium(Ⅵ) to chromium(Ⅲ) in the presence of a sacrificial organic reductant. Maghemite has the twin advantages of being a photocatalyst that exhibits strong absorbance in the visible region of the spectrum and of being magnetic, so facilitating post processing solid/liquid separation. During this study, a simple, robust, calibrationless potentiometric technique for monitoring the concentration of chromium(Ⅵ) was developed. This method allowed the photocatalytic reduction of Cr(Ⅵ) to be observed in real-time with no sample pre-treatment.

机译：除其他过程外，废水的处理还包括去除重金属离子污染物和/或有机污染物。作为潜在的水处理硅铝酸盐纳米复合材料的一种组分，我们已经证明了在牺牲性存在下，使用磁赤铁矿（γ-Fe_2O_3）作为光催化剂将水污染物中的铬（Ⅵ）还原为铬（Ⅲ）的有效性。有机还原剂。磁赤铁矿具有双重优势：作为光催化剂，在光谱的可见光区域具有强吸收性，并且具有磁性，因此便于后处理过程中的固/液分离。在这项研究中，开发了一种简单，可靠，无需校准的电位计技术，用于监测铬（Ⅵ）的浓度。该方法无需进行样品预处理即可实时观察到光催化还原Cr（Ⅵ）。

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《Electrochemical Society(ECS) Meeting;Symposium on Industrial Electrolysis and Electrochemical Engineering General Session; 20070506-11;20070506-11; Chicago,IL(US);Chicago,IL(US)》|2007年|P.1727|共2页
会议地点 ChicagoIL(US);ChicagoIL(US)
作者
K.Jones; C.Boxall; R.W.McCabe; D.Shaw; M.Buck;
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Centre for Materials Science, University of Central Lancashire, Preston, Lancashire PR1 2HE, UK;

Rockwood Additives Limited Moorfield Road, Widnes, Cheshire UK WA8 3AA;

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原文格式 PDF
正文语种 eng
中图分类材料;
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1. Maghemite nanoparticles and maghemite/silica nanocomposite microspheres as magnetic Fenton catalysts for the removal of water pollutants [J] . Nassira Ferroudj, Jimmy Nzimoto, Anne Davidson Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications . 2013,第Null期

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2. A review on graphene-TiO_2 and doped graphene-TiO_2 nanocomposite photocatalyst for water and wastewater treatment [J] . B. A. Bhanvase, T. P. Shende, S. H. Sonawane Environmental technology reviews . 2017,第1期

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3. A review of graphene-TiO_2 and graphene-ZnO nanocomposite photocatalysts for wastewater treatment [J] . Thakre Kunal G., Barai Divya P., Bhanvase Bharat A. Water Environment Research . 2021,第11期

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4. Nanocomposites for Water Treatment - Maghemite as a photocatalyst [C] . K. Jones, C. Boxall, R. W. McCabe, Meeting of the Electrochemical Society . 2007

机译：用于水处理的纳米复合材料 - Maghemite作为光催化剂
5. Synthesis of High Catalytic Activity Bismuth-based Photocatalysts and Their Application in Wastewater Treatment [D] . 舒友菊 2019

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6. Self-Assembled AgNP-Containing Nanocomposites Constructed by Electrospinning as Efficient Dye Photocatalyst Materials for Wastewater Treatment [O] . Yamei Liu, Caili Hou, Tifeng Jiao, 2018

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7. Maghemite nanoparticles and maghemite/silica nanocomposite microspheres as magnetic Fenton catalysts for the removal of water pollutants [O] . Ferroudj, Nassira, Nzimoto, Jimmy, Davidson, Anne, 2013

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8. Use of cysteine-modified TiO2 photocatalyst for treatment of combined organic/inorganic wastewaters [R] . Peters, R. W., Wu, J. M., Meshkov, N., 1995

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Nanocomposites for Water Treatment - Maghemite as a photocatalyst

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