我国现在正面临以"室内空气污染"为标志的第三次污染，如何解决室内空气污染已成为各国研究者关注的热点问题。甲醛是室内空气中最典型、最严重的污染物之一，对人体健康具有重大危害。研究室温净化甲醛技术，有效的消除室内甲醛污染，已成为改善人们生活环境质量的迫切任务。在前期研究中，我们发现了一种可室温催化氧化甲醛为H2O和CO2的Pt/TiO2催化剂，从而使催化氧化技术应用于净化室内甲醛成为可能，但目前该催化剂仍然存在活性不稳定、成本较高等不足。本项目在此基础上，以实验研究和理论分析相结合的手段，明确催化剂的活性中心结构和室温催化氧化甲醛反应机理，进一步完善催化剂制备技术和预处理条件，并在多种污染组分共存条件下考察催化剂的实用性和寿命，以制备高活性、高稳定性和低成本的催化剂，建立相应的甲醛催化净化装置和使用方法，实现室内复杂条件下对甲醛安全、经济的催化净化，为改善室内空气质量作出贡献。

Health experts have identified serious health risks associated with poor indoor air quality in China, and the indoor air pollution control is gaining a lot of attention from researchers. Formaldehyde (HCHO) is one of the serious and typical indoor air pollutants which contribute to health risks since formaldehyde emitted from building / furnishing materials and consumer products is known to cause nasal tumors, irritation of the mucous membranes of the eyes, respiratory tract and skin, and considered as a major indoor air pollutant in air-tight houses. Due to the increasing concern about HCHO emission, the abatement of its emission is of significant practical interest at low temperature, especially at room temperature. Recently, we reported a perfect Pt/TiO2 catalyst over which HCHO can be completely oxidized into CO2 and H2O at room temperature, which make the catalytic oxidation technology become a potential method for HCHO elimination at room temperature. However, the unstable activity and high cost of Pt/TiO2 catalyst inhibit the practical use of this HCHO elimination technology. Based on our previous studies, the current work will focus on exploiting a high activity and stability catalyst by the improving the catalyst preparation methods and pretreatment conditions. The mechanism of HCHO oxidation over catalyst and the identification of the activity center structure of the catalyst will be studied at room temperature by combination of the experiments results and theory analysis. HCHO elimination equipment and its use method will be established for HCHO elimination under the complex indoor air at room temperature. The effort of this work will devote to improving the indoor air quality.

我国现在正面临以"室内空气污染"为标志的第三次污染，如何解决室内空气污染已成为各国研究者关注的热点问题。甲醛是室内空气中最典型、最严重的污染物之一，对人体健康具有重大危害。研究室温净化甲醛技术，有效的消除室内甲醛污染，已成为改善人们生活环境质量的迫切任务。在前期研究中，我们发现了一种可室温催化氧化甲醛为H2O和CO2的Pt/TiO2催化剂，从而使催化氧化技术应用于净化室内甲醛成为可能，但目前该催化剂仍然存在活性不稳定、成本较高等不足。本项目在此基础上，以实验研究和理论分析相结合的手段，明确催化剂的活性中心结构和室温催化氧化甲醛反应机理，进一步完善催化剂制备技术和预处理条件，并在多种污染组分共存条件下考察催化剂的实用性和寿命，以制备高活性、高稳定性和低成本的催化剂，建立相应的甲醛催化净化装置和使用方法，实现室内复杂条件下对甲醛安全、经济的催化净化，为改善室内空气质量作出贡献。