雪花尖Pt修饰Cu2O合金纳米团簇用于光电Fenton降解染料污染物

IF 6.3 2区 材料科学 Q2 CHEMISTRY, PHYSICAL
Jinghua Li, Pengshan Guo, En Li, Chuntao Zhao, Xinyue Yan, Pan Xu
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引用次数: 0

摘要

将传统的Fenton催化技术与其他先进的废水净化技术相结合是大规模水污染处理的有效策略,这种协同处理技术对有机污染物出水的降解效率更高,效果更好。在本研究中,采用典型的水热法制备了一种基于光热增强光电芬顿策略的合金雪花尖Pt修饰Cu2O纳米团簇(SSPt-Cu2O NCs)。合金化设计有利于电子传递,提高催化效率。同时,在808 nm近红外(NIR)激光照射下,SSPt-Cu2O NCs具有优异的光热性能(超过50℃),提高了催化反应速率。以染料罗丹明B (Rhodamine B, RhB)为模型污染物,通过同时附加近红外激光(808 nm, 2.0 W•cm- 2,5 min)和直流(110 V, 50 Hz, Cv≤1 mvrms, CC≤5 mARms)对合成的SSPt-Cu2O NCs的降解能力进行了评价。采用RhB浓度为1.0 mg/mL,催化剂浓度为1.0 mg•mL-1, pH为7.0的光电Fenton催化剂,处理2 h,降解效率可达96.13%。此外,SSPt-Cu2O NCs光电Fenton催化剂在环境应用中表现出良好的可重复使用性和突出的无毒毒性,是废水管理中有机污染化学品的潜在候选者。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Snowflake-Sharped Pt Modified Cu2O Alloyed Nanoclusters for Photo-Electro Fenton Degradation of Dye Contaminant
Incorporation of the traditional Fenton catalysis technique with other advanced wastewater purification technology is a effective strategy for large-scale water pollution treatment, this potency of co-processing treatment technology on the degradation of organic pollutant effluents is more efficient and preferable. In this study, a innovation based on photothermal enhanced photo-electro Fenton tactics based on alloyed snowflake-sharped Pt modified Cu2O nanoclusters (SSPt-Cu2O NCs) were prepared by using a typical hydrothermal method. The alloying design is conducive to electron transfer to improve catalytic efficiency. Meanwhile, the SSPt-Cu2O NCs have excellent photothermal properties (over 50 oC) to increase the catalytic reaction rate under 808 nm near-infrared (NIR) laser irradiation. Then dyestuff Rhodamine B (RhB) was used as model contaminants to evaluate the degradation capacity of the as-synthesized SSPt-Cu2O NCs by simultaneously append NIR laser (808 nm, 2.0 W•cm-2, 5 min) and direct current (DC, 110 V, 50 Hz, Cv≤1 mvrms CC≤5 mARms). The degradation efficiency for reach up to could reach up to 96.13% in a 2-h treatment procedure by using the photo-electro Fenton catalyst (1.0 mg/mL of RhB, catalyst concentration at 1.0 mg•mL-1, and pH at 7.0). Moreover, the SSPt-Cu2O NCs photo-electro Fenton catalyzers show goodish reusability and outstanding atoxic nontoxicity for environment application, which designating the potential candidate for organic pollutional chemicals in wastewater management.
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来源期刊
Journal of Alloys and Compounds
Journal of Alloys and Compounds 工程技术-材料科学:综合
CiteScore
11.10
自引率
14.50%
发文量
5146
审稿时长
67 days
期刊介绍: The Journal of Alloys and Compounds is intended to serve as an international medium for the publication of work on solid materials comprising compounds as well as alloys. Its great strength lies in the diversity of discipline which it encompasses, drawing together results from materials science, solid-state chemistry and physics.
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