2-18. Parallel Synthesis and High-throughput characterization of Photocatalysts

Song Sun* ,Chen Gao

1. School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui 230601, China
2. National Synchrotron Radiation Laboratory, Collaborative Innovation Center of Chemistry for Energy Materials, University of Science and Technology of China, Hefei, Anhui, 230029, China
3. Beijing Advanced Sciences and Innovation Center of Chinese Academy of Sciences, Beijing 100083, China

Abstract: Semiconductor photocatalysis has been considered a potentially promising approach for renewable energy and environmental remediation with abundant solar light. However, the development of efficient and stable photocatalysts remains challenging due to the complicated mechanism of photocatalytic process and sensitivity of preparation conditions for photocatalysts. Fortunately combinatorial method is a powerful tool for addressing this issue. In our recent work, we developed some parallel synthesis methods and high-throughput characterization techniques for researching efficient photocatalysts. It includes, i) development of combinatorial drop-on-demand inkjet delivery system (Figure 1a) for accurate delivery of precursor solution, ii) development of parallel solution combustion synthesis technique (Figure 1b) for preparation of photocatalysts, and iii) development of infrared microscope-based high-throughput screening technique for searching photocatalysts for air purification and determining corresponding adsorption/desorption, intermediates/products, and interfacial reaction. Based on these, some efficient photocatalysts, such as YAlO3、CaIn2S4 and co-doping TiO2, were developed.

Keywords: Photocatalysis; Environmental remediation; Water splitting; Combinatorial inkjet delivery system; Infrared microscope; Parallel solution combustion synthesis

图 1. (a)研制的组合溶液喷射仪结构示意图;(b)发展的溶液燃烧并行合成技术示意图 

   光催化材料的并行合成与高通量表征

孙松*，高琛

1. 安徽大学化学化工学院，合肥，230601 中国科学技术大学国家同步辐射实验室、能源材料化学协同创新中心，合肥， 230029

3. 中国科学院北京综合研究中心，北京，101407

摘要: 利用光催化技术将太阳能转化为高品质的化学能是解决能源危机和环境污染最具潜力的 手段之一。开发高效、稳定的半导体光催化剂材料是光催化研究的核心。然而，由于光催化过 程十分复杂，其中的反应机理和动力学尚不明确，已开发的光催化材料的活性仍然较低，难以 满足应用需求。材料基因组学方法是解决这一问题的有效途径。我们发展了一些光催化材料的 并行合成方法和技术，并建立了相应的高通量表征平台，在此基础上，成功开发了一些高效光 催化剂。主要包括:(1)研制了组合溶液喷射合成仪(图 1a)，可用于多类型、多组分反应前驱 液的多通道精确输送;(2)发展了阵列式溶液燃烧合成技术(图 1b)，并用于多元组分光催化催 化材料的合成;(3)发展了气相降解光催化剂的同步辐射红外显微光谱表征技术，并通过研究 光催化剂表面吸附以及中间产物的种类和变化，揭示了表面吸附与降解效率的关系，探索了光 催化降解气相有机物的机理和反应动力学;(4)研制了用于降解液、气相有机污染物和分解水的 YAlO3、CaIn2S4 和多离子共掺 TiO2 等高效光催化剂。

关键词:光催化;降解污染物;水分解;组合溶液喷射;红外显微;溶液燃烧