According to the Mehr news agency, citing the vice president’s science, technology and knowledge-based economy, “Designing and manufacturing thin sculptured layers to detect gas mixtures {(N2 + O2) + CO and/or CO2 and/or NOx with different percentages) and (air + CO and/or CO2 and/or NOx with different percentages)} in the sensor Yunshi gas and field emission (application in the environment: detection of air pollution)” title of the postdoctoral project of Rozhan Sawari Jamalavi is with the guidance of the conductor a question and the support of the National Science Foundation of Iran has ended.
riding Jamalavi with a doctorate in physics – solid state and matter dense Tehran University explained about this plan: In recent years, one of the effects of industrialization in big cities is the production of gaseous pollutants through transport fleets, factories and homes. Finding a suitable solution for air pollution in Iran’s big cities is one of the challenges for which a specific solution has not yet been found. This pollution in the form of acid rain, layer destruction weight And greenhouse effects have harmful effects on the health and hygiene of the environment.
He added: So far in Iran, no systems have been designed to determine polluting gases in the air, or limited measurements have been made. Therefore, it is considered necessary to study for the design and construction of gas pollutant sensors and their optimization.
This researcher further stated: Gas sensors should be capable of detecting and measuring the type and amount of density of a gas in the environment. Sensors Yunshi Gases use the refraction criterion to measure the gas and using the curve heel They have the ability to detect the type and pressure of gas and gas mixture, which can be efficient for determining the amount of pollutants in the air.
He stated: Nano technology provides the possibility of making and optimizing electrodes on a small scale with higher sensitivity and selectivity because by increasing the ratio of surface to volume in nanoscale levels, the effective surface of electrodes increases, which increases the sensitivity of sensors. In addition, sensors are produced in smaller dimensions and less power consumption.
riding Jamalavi He further stated: Today, air pollution is one of the most important factors of increase infection to asthmalung cancer, cardiovascular diseases, respiratory diseases, birth defects and premature death in the big cities of the world. Based on According to the World Bank report, one death out of every 10 deaths occurs due to air pollution, which has made air pollution the fourth category of the world’s leading causes of death.
He added: How to produce and use energy carriers in different consumer sectors is one of the effective factors in causing environmental pollution. Iran, having huge oil and gas resources, is considered one of the most inappropriate energy producers and consumers in the world. If the increasing trend of pollutant and greenhouse gas production crosses the critical border, the country will face heavy social, economic and medical problems.
About the goals of this project, he said: The main goal of this research is to detect gas mixtures using sensors Yunshi It is gaseous and the secondary goal is to optimize the sensor characteristics such as sensitivity, selectivity, stability, detection limit and reproducibility using nanosculpture thin films.
riding Jamalavi In the end, he pointed out: revealing the mixture of polluting gas in the air can be effective in explaining the policies to protect the health of society and the environment and help in the expansion of gas measurement systems. taking advantage of Nanostructures It is important in optimizing the performance of gas sensors and reducing sensor manufacturing costs. This study can help in the optimization of the gas detector in the analyzers Chromatograph and Spectograph to become an effective crime.
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