New Delhi / Chennai: The Government of the National Capital Territory of Delhi has signed a Memorandum of Understanding (MoU) with Indian Institute of Technology Madras to undertake a pilot study on innovative photocatalytic “smog-eating” surfaces aimed at reducing air pollution in the city. The agreement was signed on March 13, 2026, marking a collaborative effort to explore scientific solutions to combat Delhi’s persistent smog problem.
The project will examine the effectiveness of Titanium Dioxide (TiO₂)-based photocatalytic materials, which activate under sunlight to trigger chemical reactions capable of converting harmful pollutants into less harmful compounds. The study will primarily focus on reducing Nitrogen Dioxide (NO₂) and Volatile Organic Compounds (VOCs), two major contributors to urban air pollution and smog formation in densely populated cities.
According to officials, the research will involve both controlled laboratory experiments and real-world field trials. Initial tests will be conducted in a dedicated smog chamber at IIT Madras to measure pollutant reduction accurately. The project will then move to on-ground assessments in Delhi, where photocatalytic materials may be applied to surfaces such as roads, pavements, building facades, and metal or glass panels to evaluate their performance under real environmental conditions.
Delhi’s Environment Minister Manjinder Singh Sirsa said the initiative reflects the government’s focus on science-based strategies to address air quality challenges while supporting urban development. If the results demonstrate measurable benefits, authorities may consider expanding the use of such materials across city infrastructure during peak pollution months as part of Delhi’s broader air-quality management strategy.
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