3D CFD Simulations: Effect of Operation Parameters on the Deposition of Photocatalytic TiO2 Nanoparticles by MOCVD

Siti Hajar Othman, Suraya Abdul Rashid, Tinia Idaty Mohd. Ghazi, Norhafizah Abdullah
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引用次数: 1

Abstract

A 3-dimensional (3D) computational fluid dynamics (CFD) simulation study on the effect of temperature and carrier-gas flow rate on the deposition of photocatalytic titanium dioxide (TiO2) nanoparticles by metal-organic (MO)CVD is presented. The model predicts the temperature, velocity, mass fraction of reactants and products, kinetic rate of reaction, and surface deposition rate profiles. Increasing temperature and reducing carrier gas flow rate increases the deposition rate and hence the amount of nanoparticles produced. Unlike carrier-gas flow rate, temperature is significant in determining the rate of surface deposition. Simulation results are validated by experiments whenever possible due to limited data. Decent agreement between experiment and simulation supports the reliability of the simulation.

三维CFD模拟:操作参数对MOCVD沉积光催化TiO2纳米粒子的影响
采用三维计算流体力学(CFD)模拟研究了温度和载气流速对金属有机气相沉积光催化二氧化钛(TiO2)纳米颗粒的影响。该模型预测了温度、速度、反应物和产物的质量分数、反应的动力学速率和表面沉积速率分布。升高温度和降低载气流速会增加沉积速率,从而增加纳米颗粒的产量。与载气流速不同,温度是决定表面沉积速率的重要因素。由于数据有限,仿真结果尽可能通过实验进行验证。实验结果与仿真结果吻合较好,支持了仿真结果的可靠性。
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来源期刊
Chemical Vapor Deposition
Chemical Vapor Deposition 工程技术-材料科学:膜
自引率
0.00%
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0
审稿时长
>12 weeks
期刊介绍: Chemical Vapor Deposition (CVD) publishes Reviews, Short Communications, and Full Papers on all aspects of chemical vapor deposition and related technologies, along with other articles presenting opinion, news, conference information, and book reviews. All papers are peer-reviewed. The journal provides a unified forum for chemists, physicists, and engineers whose publications on chemical vapor deposition have in the past been spread over journals covering inorganic chemistry, materials chemistry, organometallics, applied physics and semiconductor technology, thin films, and ceramic processing.
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