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The main objectives of this study is to investigate the properties of photoactive Nano TiO2 thin film-geopolymer based on laterite soils deposit Gowa regency as self-cleaning material. The soil was clean, grounded, sieves 200 mesh and dehydroxylated at 750 for 2 hours. Nano TiO2 was prepared through ball milling process for 10 hours. The geopolymers was synthesized through alkali activation method by adjusting the molar oxide ratios of SiO2/(Al2O3+Fe2O3), Na2O/SiO2 and H2O/Na2O in accordance with the chemical compositions of the soils. Nano TiO2 was added into geopolymers paste at different concentration namely 0.5% and 1.0% (relative to the mass of laterite soils) by using spray method. The self-cleaning properties of the sample were observed by immersing the sample into clays solution then irradiated under UV lamp for 24 hours. The X-Ray Diffraction (XRD) was performed to examine the structure and phase of the sample. The surface morphology of geopolymers was studied by using scanning electron microscopy (SEM). The measurements results showed that photoactive Nano TiO2-geopolymers composite can be applied as self-cleaning materials.

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As one of Indonesia's leading commodities, the trend of palm oil exports is always increasing. Even so, this commodity is often subject to global market discrimination which is manifested through regulations and policies of countries consuming palm oil commodities, such as the Renewable Energy Directive II (RED II) and the proposal for Regulation on deforestation-free products. The Indonesian government has filed a lawsuit against this regulation, but the WTO dispute resolution mechanism is still considered unable to resolve the problem, especially the reason that consumer countries think that Indonesian palm oil can reduce its post-2020 emission reduction commitments under the Paris Agreement through Nationally Determined Contributions (NDCs) which needs to be fulfilled in 2030. On the other hand, the Government of Indonesia still needs to improve the governance of Indonesian palm oil in order to increase the acceptance of this commodity in the global eyes. This study aims to find a middle ground for commitments to reduce emissions from consumer countries and improve Indonesian palm oil governance through the acceptability of the palm oil market which is realized through free trade agreements. The formation of a trade agreement by including a clause on sustainability can be one solution to reconcile the acceptance of the palm oil market and global climate change commitments.