Photodegradation of natural dye to solar energy / Nur Fatin Shazwina Mohd Shamsuri

Extraction of natural dye from plants like flower and leave has a great deal of potential to replace fossil fuels such as petroleum as the most affordable renewable energy source. They different from fossil fuels primarily in their variety, quantity, and possibility for usage anywhere on Earth, but most importantly in that its do not emit any greenhouse gases that contribute to climate change or other harmful emissions. The desire for cleaner, more sustainable, and renewable energy is being driven by rising energy consumption and increasing awareness of environmental issues. The IEA predicts that by 2040, global electricity demand would have grown by 70%, accounting for 24% of energy demand. In this study, extraction of natural dye undergo photodegradation were prepared using hibiscus dye extracted from Hibiscus rosa-sinensis flowers. One types of metal oxide, which is calcium oxide, were used for as a catalyst for the solution. The main purpose to analyze the future usage of organic dyes as a source of renewable energy and to investigate the chemical and physical characteristics of dye extraction. So, after three weeks of exposure to the sunlight, the natural dye solution colours began to degrade. The colour of solution change from darker to lighter. Additionally, the functional group by FTIR of the hibiscus are also reported.