Silac – the unique lighting device powered by smog

Silac is a futuristic paint that converts smog from polluted cities into visible light and oxygen.

People routinely recycle their garbage. Likewise, cities will soon recycle their smog with our invention, Silac. Indeed, Silac is a paint applied in polluted cities to produce visible light and dioxygen from smog. Silac is currently under development and promises to revolutionize urban life by replacing traditional lighting devices and air purifiers. However, our team lacks funds to purchase the required materials for the construction of the Silac prototype. Dear donator, we need your help!

Smog is useful

We won’t reveal anything new if we announce that some major cities in the world, such as Los Angeles, New Delhi, Cairo, Beijing and Sao Paolo, are heavily polluted. However, we will surely surprise you if we regard smog as a useful energy reservoir rather than a simple nuisance to public health. Indeed, Silac is a revolutionary concept that brings this vision to life. Silac harnesses the potential of atmospheric smog to produce visible light without any electricity consumption. In addition to light output, Silac also produces dioxygen and purifies the air of polluted environment.

Innovative process

Silac, which stands for Smog-Induced Luminescent Air Cleaner, is a paint that catalyses the chemiluminescent reaction between two components of smog, ozone and nitric oxide. The accelerated reaction generates excited nitric dioxide, which releases visible light photons, and dioxygen, which purifies the air. In order to catalyze this reaction, Silac contains a powder mixture of two adsorbents, each one capturing a specific reactant. When the adsorbents enter in close contact in a homogeneous mixture, adsorbed ozone and nitric oxide have higher odds to interact and to react. The powder mixture is retained in a binder and solvent in the shape of paint to prevent its disintegration.

Silac multitasking

With far superior efficiency, Silac can simultaneously achieve the functions of a 60W light bulb and of a standard air purifier.

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From design to construction

Our team is currently designing Silac in a chemistry laboratory of University of Montreal. Theoretical calculations have shown that by using optimal adsorbents discovered by our team, Silac can generate the luminosity of a 60W light bulb with the equivalent surface area of this light bulb.

Because of an insufficient budget to buy materials, the fabrication of Silac’s first prototype can’t begin. Therefore, we hope that you, dear supporter, can make a donation and contribute to this invention’s concretization. We all wish cities to be a better place to live. Turning urban smog into a source of light energy is a significant step towards this goal.

Link to the Project

About Project Creator


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Weiting Xiong     Montreal, Canada
I am Weiting Xiong, the main inventor of Silac, which means that the initial idea comes from me. However, I study in pharmacy at University of Montreal, so I cooperate with chemistry students from University of Montreal to create Silac. My chemistry partners are the true builders of Silac, and I’m the coordinator who gathers funds and organizes Silac’s promotion. If you want more info on me, please go to my campaign webpage.