Facile one-pot preparation of Cu/CuO/Cu2O heterojunction for photocatalytic applications
Facile one-pot preparation of Cu/CuO/Cu2O heterojunction for photocatalytic applications
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DOI：
10.1016/j.matlet.2022.132606
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发表时间：
2022-06-09
影响因子：
3
通讯作者：
Matsuda, Atsunori
中科院分区：
文献类型：
--
作者：
Abd Elkodous, M.;Kawamura, Go;Matsuda, Atsunori
采用醋酸铜与抗坏血酸在90 ℃下反应，一步制备出Cu/CuO/Cu 2 O异质结构。利用XRD、SEM、TEM、HR-TEM、SAED和XPS分析了所制备颗粒的理化性质。此外，他们的光催化性能进行了研究，对三种不同的材料（对硝基苯胺（pNA），高锰酸钾，六价铬Cr（VI）在紫外线下。结果表明，所制备的纳米粒子主要为金属Cu纳米粒子，XPS分析表明纳米粒子中存在CuO和Cu 2 O纳米粒子。所制备的Cu纳米粒子具有较高的结晶度，具有FCC晶体结构，平均粒径约为9 nm。此外，所制备的异质结对对硝基苯胺的光催化降解能力优于其他污染物，在80 min的光照下，对硝基苯胺的去除率接近24%.
One-step preparation of Cu/CuO/Cu2O heterogenous structure is prepared by reacting copper acetate with ascorbic acid at 90 ?. The physiochemical properties of the prepared particles were analyzed using XRD, SEM, TEM, HR-TEM, SAED, and XPS analyses. In addition, their photocatalytic performance was investigated against three different materials (p-nitroaniline (pNA), potassium permanganate, and hexavalent chromium Cr(VI) under UV-rays. Our results showed that, the prepared particles were mainly metallic Cu NPs with the presence of CuO and Cu2O NPs as revealed by XPS analysis. The prepared Cu NPs possessed high crystallinity with FCC crystal structure and an average diameter of about 9 nm. Moreover, the prepared heterojunction showed better photocatalytic degradation abilities against p-nitroaniline compared with other pollutants, resulting in the removal of nearly 24 % after 80 min of irradiation.