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超声化学合成的 AC-CeO 纳米复合材料增强了光催化结晶紫的降解性能。

Enhanced photocatalytic crystal-violet degradation performances of sonochemically-synthesized AC-CeO nanocomposites.

机构信息

Department of Semiconductor Science, Dongguk University-Seoul, Seoul 04620, Republic of Korea; Quantum-functional Semiconductor Research Center, Dongguk University-Seoul, Seoul 04620, Republic of Korea.

Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul 04620, Republic of Korea.

出版信息

Ultrason Sonochem. 2022 Nov;90:106177. doi: 10.1016/j.ultsonch.2022.106177. Epub 2022 Sep 23.

DOI:10.1016/j.ultsonch.2022.106177
PMID:36174271
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9520071/
Abstract

Semiconductor-based photocatalysis is one of the favorable techniques for the wastewater treatment. Herein, we synthesized the activated carbon-decorated cerium dioxide (AC-CeO) nanocomposites via the facile ultrasonication method by using the biomass-derived AC nanoflakes and the sonochemically-synthesized CeO nanoparticles. The AC-CeO nanocomposites exhibited the aggregated morphology with the AC nanoflakes-anchored CeO nanoparticles. Since the hybridization of conductive AC and semiconductive CeO would lead to the increased photocarrier transport and the reduced photocarrier recombination, during the photocatalytic reaction, the AC-CeO nanocomposites showed the enhanced crystal violet dye-degradation efficiency up to 97.9 % within 135 min. The results suggest that the AC-CeO nanocomposites hold promise as a prominent photocatalyst for future green environmental technology.

摘要

基于半导体的光催化是一种用于废水处理的理想技术。在此，我们通过简便的超声法，利用生物质衍生的 AC 纳米片和超声合成的 CeO 纳米颗粒，合成了活性炭修饰的二氧化铈 (AC-CeO) 纳米复合材料。AC-CeO 纳米复合材料表现出具有 AC 纳米片锚定 CeO 纳米颗粒的聚集形态。由于导电 AC 和半导体 CeO 的杂交会导致光生载流子传输增加和光生载流子复合减少，因此在光催化反应中，AC-CeO 纳米复合材料在 135 分钟内表现出高达 97.9%的增强的结晶紫染料降解效率。结果表明，AC-CeO 纳米复合材料有望成为未来绿色环境技术的一种突出的光催化剂。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e89/9520071/92a41dc5afe1/gr7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e89/9520071/264dd8824191/gr1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e89/9520071/9f3ea8c2c021/gr2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e89/9520071/89dac532d63e/gr3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e89/9520071/ab614d7e66e5/gr4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e89/9520071/4fcd2458c3fe/gr5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e89/9520071/2af4e8d291a5/gr6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e89/9520071/92a41dc5afe1/gr7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e89/9520071/264dd8824191/gr1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e89/9520071/9f3ea8c2c021/gr2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e89/9520071/89dac532d63e/gr3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e89/9520071/ab614d7e66e5/gr4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e89/9520071/4fcd2458c3fe/gr5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e89/9520071/2af4e8d291a5/gr6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5e89/9520071/92a41dc5afe1/gr7.jpg

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