Artificial Photosynthesis Developed

Panasonic said on Monday it has created a new system for artificial photosynthesis that can remove carbon dioxide from the air almost as well as plants do, as part of the company’s entry into an industry-wide trend toward greener tech.

The company said its system uses nitride semiconductors, which are widely used in LEDs (light-emitting diodes) to convert light to energy, and a metal catalyst to convert carbon dioxide and water to formic acid, which is widely used in dyes, leather production and as a preservative.

Carbon dioxide is a major pollutant and considered to be a main cause of the “greenhouse effect,” which most climate scientists believe causes global warming.

Panasonic has struggled with its traditional electronics business and has made eco-friendly products and practices the key element in its turnaround plan. The company is hoping to leverage its large rechargeable battery and solar businesses, while joining the industry in embracing technologies that are friendlier to the environment. The issue is an important one with customers, as demonstrated by the the outcry earlier this month when Apple was forced to rejoin a green standards program when clients complained about its earlier withdrawal.

Panasonic said the system can convert carbon dioxide and water to formic acid with an efficiency of 0.2 percent in laboratory conditions, which is similar to the conversion rate for green plants. The efficiency refers to the portion of the incoming light energy stored in materials produced during the process.

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