Prof. Dr. Djoko Hartanto is an academic staff at the Department of Chemistry, Faculty of Science, Institut Teknologi Sepuluh Nopember (ITS), Surabaya, Indonesia. He received his bachelor degree from Universitas Gadjah Mada (UGM) in Inorganic Chemistry in 1986. He then pursued his Masters in Inorganic Chemistry and graduated in 1992 from the same institution. He has also successfully completed his PhD in ‘Synthesis Catalyst Heterogen of ZSM-5 from Kaolin’ from Institut Teknologi Sepuluh Nopember (ITS) in 2016. He is active in Indonesian Zeolite Association and he is the President of the organization. His expertise in catalyst has been sought after through the collaboration between ITS and Universiti Teknologi Malaysia (UTM) in the field of Nano Materials and Photo-catalysis. He has also involved in projects for Surabaya city for the use of Natural Zeolite as the potential catalyst in used oil. He is one of the key members of ITS Electric Car Project for the Fabrication of ZSM-5 Composite Membrane from Bangka Kaolin with Polypropylene Polymer as Lithium-ion Battery Separator.
Indonesian natural zeolite has been used globally in various applications such as conventional-simple application and modern-complicated application, while the potential of Indonesian natural zeolite reserve is abundant (estimated above 600 million tons) and found in Java, Sumatra, Sulawesi and NTT regions whose reserves usually in form of clinoptilolite, natrolite and mordenite zeolite. Virtually every university and research institute in Indonesia conduct (or has done) research on natural zeolite, which is widely studied the application of Indonesian natural zeolite as catalytic active material, adsorbent and molecular sieve. There is also research that studied natural zeolite usage as slow release fertilizer carrier, energy-exchanger that helps stabilize heat during day and night and also as an air conditioner in grain processing from agricultural products. Natural zeolite is olso used as energy storage material, primarily for storing hydrogen, and the most interesting utilization is radioactive materials adsorbent in nuclear reactor before waste disposal. In business field, Indonesian natural zeolite is produced in large quantities for both domestic and export demand. Natural zeolite mainly used for soil modifiers, cattle feed mixture to reduce nitrates and nitrites in manure, active adsorbents in waste treatment, slow release fertilizer carriers and additional materials in pond culture. In my research group, Indonesian natural zeolite is modified as it is usually used as a catalyst and adsorbent, energy storage material especially hydrogen storage, heat exchanger systems and other applications related to energy. The main application that supports the green energy project is fabrication catalysts for processing used oil and POME into biodiesel, in this case the Surabaya government aim to produce biodiesel and support the Indonesian government's program towards B100 from used oil. In addition to these programs natural zeolite was also developed to support "Surabayaku Hijau dan Bersih" and “Program Langit Biru”.