通常，通过消除VOC源、在通风供应中提供更大比例的新鲜空气，以及积极修复污染物，可以实现缓解空气污染物暴露导致的室内空气质量差（IAQ）的解决方案。使用活性炭和高锰酸钾浸渍的活性氧化铝等吸附剂的活性修复技术通常非常有效，但它们基本上都是寿命有限的系统，需要定期更换和处置。 因此，一种更持久的VOC修复控制技术，不涉及昂贵的介质更换和处置，可能是一种成本效益高的VOC减排解决方案。修复室内环境中VOCs的一种有希望的方法是使用氧化VOCs的光催化反应器。利用TiO2和紫外光的光催化氧化过程具有自我再生和潜在的成本效益。需要更全面地了解光催化过程及其优缺点和局限性，才能更全面地评估其在VOC修复应用中的最终潜力。 本研究项目的主要目标是:1）通过文献检索，调查气相光催化的已知情况；2）对该技术进行分析，以确定其在设备尺寸、操作条件、公用事业使用率、潜在资本成本和其他重要商业考虑因素方面的潜在优势、劣势和局限性，3）推荐需要的进一步研究。

Typically, solutions for alleviating poor indoor air quality (IAQ) resulting from airborne pollutant exposure are achieved through VOC source elimination, supplying larger fractions of fresh air in the ventilation supply, and active remediation of the pollutants. Active remediation technologies using adsorbents such as activated charcoal and potassium permanganate impregnated activated alumina are often quite effective, but all are fundamentally finite life systems that require regular replacement and disposal. Therefore, a more permanent control technology for the remediation of VOCs that does not involve expensive media replacement and disposal could be a cost-effective solution to VOC abatement.One promising approach for remediating VOCs in the indoor environment is to employ photocatalytic reactors that oxidize VOCs. A photocatalytic oxidation process, using Ti02with UV light, is self-regenerating and potentially cost effective. A more complete understanding of the photocatalytic process, its advantages, disadvantages and limitations are needed to more fully evaluate its ultimate potential for VOC remediation applications.The key objectives of this research project are to: 1) Investigate, through a literature search, what is known about gas-phase photocatalysis, 2) Conduct an analysis of the technology to define its potential benefits, disadvantages and limitations with respect to equipment size, operating conditions, utility use rates, potential capital cost and other commercially important considerations, 3) Recommend further research that is needed.