添加钴和镍改性CdSe薄膜提高有机染料光催化分解效率的适用性评价

IF 3 Q2 MATERIALS SCIENCE, COMPOSITES
Aliya Zh. Omarova, Talgatbek Ayazbaev, Zhanar S. Yesdauletova, Sholpan A. Aldabergen, Artem L. Kozlovskiy, Gulnaz Zh. Moldabayeva
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引用次数: 0

摘要

本文介绍了利用CdSe、NiCdSe和CoCdSe薄膜作为光催化剂分解有机染料罗丹明B、货红和靛蓝胭脂红的基础的评估结果。人们对这一领域的兴趣是由于需要解决一些问题,这些问题与提高净化水介质的效率有关,使其免受有机染料的负面影响,而有机染料不能使用传统的吸附或过滤方法处理。利用电化学合成方法获得给定厚度的薄膜表明,在获得CdSe薄膜的标准电解质溶液中加入硫酸镍或硫酸钴,可以形成结构有序度更高(结晶度大于50%)的CdSe薄膜,并且能带隙减小。有机染料的光催化分解分析数据时,发现改变电影的结构由于镍和钴的引入导致,在分解的罗丹明B染料,更有效的分解,并在货物的情况下红色和食用靛蓝染料,不仅完全分解和矿化,还能减少光催化反应的时间(分解增长率)。此外,循环测试分析表明,NiCdSe和CoCdSe膜的光催化分解效率与第一个分解周期相比保持了90%,而CdSe膜在连续三个循环后降解,其效率降低了2.5-3倍以上。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Evaluation of the Applicability of Modifying CdSe Thin Films by the Addition of Cobalt and Nickel to Enhance the Efficiency of Photocatalytic Decomposition of Organic Dyes
This article presents the results of an assessment of the use of CdSe, NiCdSe, and CoCdSe thin films as a basis for photocatalysts used for the decomposition of the organic dyes rhodamine B, cargo red, and indigo carmine. Interest in this area was determined by the need to solve a number of issues related to increasing the efficiency purifying aqueous media from the negative effects of organic dyes, which cannot be disposed of using traditional methods associated with adsorption or filtration. The use of the electrochemical synthesis method to obtain thin films of a given thickness showed that the addition of nickel or cobalt sulfates to the standard electrolyte solution used to obtain CdSe films results in the formation of CdSe films with a higher degree of structural ordering (the crystallinity degree was more than 50%), as well as a decline in the band gap. When analyzing data on the photocatalytic decomposition of organic dyes, it was found that a change in the structure of the films due to the introduction of nickel and cobalt leads, in the case of the decomposition of the rhodamine B dye, to a more efficient decomposition, and in the case of the cargo red and indigo carmine dyes, not only to their complete decomposition and mineralization, but also to a reduction in the time of photocatalytic reactions (decomposition growth rate). Moreover, an analysis of cyclic tests demonstrated that NiCdSe and CoCdSe films maintain 90% of their photocatalytic decomposition efficiency compared to that achieved during the first decomposition cycle, while CdSe degrades after three consecutive cycles and its efficiency reduces by more than 2.5–3 times.
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来源期刊
Journal of Composites Science
Journal of Composites Science MATERIALS SCIENCE, COMPOSITES-
CiteScore
5.00
自引率
9.10%
发文量
328
审稿时长
11 weeks
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