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| DOI | 10.1016/j.cej.2024.150131 |
| Flow synthesis development and photocatalytic activity optimization of copper oxide nanoparticles using design of experiments | |
| 发表日期 | 2024 |
| ISSN | 1385-8947 |
| EISSN | 1873-3212 |
| 起始页码 | 486 |
| 卷号 | 486 |
| 英文摘要 | Many studies have focused on reducing the impact of carbon dioxide (CO2) on climate change. A promising approach for CO2 utilization is to use a photocatalyst to activate CO2 and generate valuable chemical compounds. One of the most commonly synthetized photocatalysts is cuprous oxide (Cu2O); however, low efficiency and fast deactivation still limit its industrial application. Here, a batch synthesis in nonaqueous media of Cu2O containing small amounts of metallic copper (Cu-0) is investigated. By adjusting the ratio between Cu2O and Cu-0 an enhanced photocatalytic efficiency is obtained. To overcome the deactivation limitations of Cu2O, a flow synthesis is developed that continuously supplies fresh photocatalysts to the reaction environment. The flow synthesis has the potential to allow the separate evaluation of the intrinsic reaction kinetic from the photocatalyst deactivation. This work optimizes the flow synthesis using a design of experiments (DOE) approach coupled with response surface methodology (RSM). The obtained surface responses for the measured factors were highly significant (p-value < 0.01 and R-2 > 0.95). This novel methodology makes it possible to identify the optimum process conditions to simultaneously improve photocatalytic performance of the obtained material and reaction productivity. This approach enabled us to obtain in flow a combination of Cu2O/Cu-0 photocatalyst and to propose a reaction mechanism and kinetic model for the Cu2O formation. The optimization procedure for flow synthesis proposed here provides an efficient path that can be extended to flow synthesis of a wide range of nanoparticles for photocatalytic applications. |
| 英文关键词 | Flow Synthesis; Continuous process; Nanoparticles; Photocatalysis; Cuprous oxide(Cu2O); Design of experiments |
| 语种 | 英语 |
| WOS研究方向 | Engineering |
| WOS类目 | Engineering, Environmental ; Engineering, Chemical |
| WOS记录号 | WOS:001222202400001 |
| 来源期刊 | CHEMICAL ENGINEERING JOURNAL
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/299106 |
| 作者单位 | Imperial College London |
| 推荐引用方式 GB/T 7714 | . Flow synthesis development and photocatalytic activity optimization of copper oxide nanoparticles using design of experiments[J],2024,486. |
| APA | (2024).Flow synthesis development and photocatalytic activity optimization of copper oxide nanoparticles using design of experiments.CHEMICAL ENGINEERING JOURNAL,486. |
| MLA | "Flow synthesis development and photocatalytic activity optimization of copper oxide nanoparticles using design of experiments".CHEMICAL ENGINEERING JOURNAL 486(2024). |
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