Biography

Prof. Widayat was born in Klaten Regency, Central Java, Indonesia on 9th June 1972. He earned his bachelor degree from Chemical Engineering Department, Faculty of Engineering, Diponegoro University, Semarang, Indonesia. He graduated for his bachelor degree in 1996. His Master Degree in Chemical Engineering was earned from Bandung Institute of Technology (ITB) in 2002. His PhD degree in Chemical Engineering was earned from Sepuluh Nopember Institute of Technology (ITS) in 2011.

His recent publications were focused on biofuels production through heterogeneous catalytic reaction. Most of his publications were published in many reputable journals which were indexed in Scopus and Web of Science. He is the owner of several patents on biofuel production. Now, he is focusing his research on catalyst development for renewable fuel production.

Prof. Widayat is the Editor in Chief of a reputable journal (Indonesian Journal of Halal) which is published by Pusat Kajian Halal (Halal Center Study) Diponegoro University and also chief in Advanced Material Laboratory.

Area of Interest:

Engineering

100%

Biofuel Energy Sources

62%

Chemical Engineering

90%

Renewable Energy

75%

Energy Conversion

55%

Research Publications in Numbers

Books
0

Chapters
1

Articles
161

Abstracts
35

Selected Publications

Widayat, W., N.T. Maheswari, W. Fitriani, L. Buchori, H. Satriadi, K. Kusmiyati and N. Ngadi, 2023. Preparation of MgO-CaO/SiO2 catalyst from dolomite and geothermal solid waste for biodiesel production. Int. J. Renewable Energy Dev., 12: 541-549.
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Wahyono, Y., H. Hadiyanto, S.H. Gheewala, M.A. Budihardjo, J. Adiansyah, W. Widayat and M. Christwardana, 2023. Life cycle assessment for evaluating the energy balance of the multi-feedstock biodiesel production process in Indonesia. Int. J. Ambient Energy, 44: 1255-1270.
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Mulyatun, Istadi and Widayat, 2023. Synthesis and characterization of physically mixed V2O5.CaO as bifunctional catalyst for methyl ester production from waste cooking oil. Int. J. Renewable Energy Dev., 12: 381-389.
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Widayat, Hadiyanto, L. Buchori, J. Prameswari, R.M. Jeksen and J. Cahyonugroho, 2022. Optimization of biodiesel production from waste cooking oil using α-Fe₂O₃/HAP catalyst via simultaneous esterification-transesterification reaction. Energy Sources Part A: Recovery Util. Environ. Eff., 44: 4050-4061.
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Prameswari, J., Widayat, L. Buchori and Hadiyanto, 2022. Novel iron sand-derived α-Fe₂O₃/CaO₂ bifunctional catalyst for waste cooking oil-based biodiesel production. Environ. Sci. Pollut. Res., 10.1007/s11356-022-21942-z.
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Philia, J., Widayat and Sulardjaka, 2022. Amorphous adsorbent from geothermal solid waste for methylene blue removal. J. Environ. Eng. Sci., 18: 1-9.
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Hadiyanto, H., W. Widayat, M.E. Pratiwi, M. Christwardana and K. Muylaert, 2022. Effect of pH, cationic inducer, and clam shells as bio-flocculant in the optimization of the flocculation process for enhanced microalgae harvesting using response surface methodology. Environ. Pollut. Bioavailability, 34: 338-351.
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Buchori, L., W. Widayat, O. Muraza, A. Prasetyaningrum, J. Prameswari, A. Widiyadi and G.A. Guspiani, 2022. Performance of NiMo-Al₂O₃catalyst in biokerosene production via hydrocracking of dirty palm oil. Int. J. Ambient Energy, 43: 7987-7997.
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Prasetyaningrum, A., D. Ariyanti, Widayat and B. Jos, 2021. Copper and lead ions removal by electrocoagulation: Process performance and implications for energy consumption. Int. J. Renewable Energy Dev., 10: 415-424.
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Al-Baarri, A.N., Widayat, R. Aulia, E.K. Prahasiwi, A.A. Mawarid, W. Pangestika and F.P. Lestari, 2021. The hardness analysis of noodles made from modified cassava flour, spirulina (Spirulina platensis) and basil leaves extract (Ocimum sanctum L.). IOP Conf. Ser.: Earth Environ. Sci., Vol. 653. 10.1088/1755-1315/653/1/012051.
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Al-Baarri, A.N., Widayat, A.M. Legowo, A.A. Ranini, B.A. Setyawan and F.P. Lestari, 2021. A study of color development from D-psicose and methionine maillard reaction products (MRPs). IOP Conf. Ser.: Earth Environ. Sci., Vol. 653. 10.1088/1755-1315/653/1/012052.
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Widayat, Hadiyanto, P.W.A. Wardani, U.A. Zuhra and J. Prameswari, 2020. Preparation of KI/Hydroxyapatite catalyst from phosphate rocks and its application for improvement of biodiesel production. Molecules, Vol. 25. 10.3390/molecules25112565.
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Widayat, Hadiyanto, E. Purbaningdyah, I. Suryanto, A. Budiman, A. Roesyadi and Kusimiyati, 2020. Production of biodiesel from waste cooking oil using heterogeneous catalysts KI/γ-Al₂O₃. J. Environ. Eng. Sci., 15: 107-112.
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Wardhani, D.H., H.N. Ulya, F. Nugroho, Widayat and Abdullah et al., 2020. Vitamin C encapsulation by a gelation method using deacetylated glucomannan as a matrix. J. King Saud Univ. Sci., 32: 2924-2930.
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Prasetyaningrum, A., Widayat, B. Jos, Y. Dharmawan and Ratnawati, 2020. UV irradiation and ozone treatment of κ-carrageenan: Kinetics and products characteristics. Bull. Chem. React. Eng. Catal., 15: 319-330.
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Prasetyaningrum, A., T. Riyanto, M. Djaeni and Widayat, 2020. Photochemical oxidation process of copper from electroplating wastewater: Process performance and kinetic study. Processes, Vol. 8. 10.3390/pr8101276.
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Munfarida, S., Widayat, H. Satriadi, B. Cahyono, Hadiyanto, J. Philia and J. Prameswari, 2020. Geothermal industry waste-derived catalyst for enhanced biohydrogen production. Chemosphere, Vol. 258. 10.1016/j.chemosphere.2020.127274.
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Kusworo, T.D., Widayat, D.P. Utomo, Y.H.S. Pratama and R.A.V. Arianti, 2020. Performance evaluation of modified nanohybrid membrane polyethersulfone-nano ZnO (PES-nano ZnO) using three combination effect of PVP, irradiation of ultraviolet and thermal for biodiesel purification. Renewable Energy, 148: 935-945.
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Kusworo, T.D., Widayat, A.F. Mahadita, D. Firizqina and D.P. Utomo, 2020. Bio-oil and fuel gas production from agricultural waste via pyrolysis: A comparative study of oil palm empty fruit bunches (OPEFB) and rice husk. Period. Polytech. Chem. Eng., 64: 179-191.
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Kusworo, T.D., Widayat and D.P. Utomo, 2020. Fabrication and characterization of nano hybrid cellulose acetate-nanoTiO²/crosslinked polyvinyl alcohol coated membrane for crude clove oil purification. Period. Polytech. Chem. Eng., 64: 304-319.
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Hadiyanto, H., A.P. Aini, Widayat, Kusmiyati, A. Budiman and A. Roesyadi, 2020. Multi-feedstocks biodiesel production from esterification of calophyllum inophyllum oil, castor oil, palm oil and waste cooking oil. Int. J. Renewable Energy Dev., 9: 119-123.
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Buchori, L., W. Widayat, O. Muraza, M.I. Amali, R.W. Maulida and J. Prameswari, 2020. Effect of temperature and concentration of zeolite catalysts from geothermal solid waste in biodiesel production from used cooking oil by esterification-transesterification process. Processes, Vol. 8. 10.3390/pr8121629.
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Kusmiyati, D. Prasetyoko, S. Murwani, M.N. Fadhilah and T.P. Oetami et al., 2019. Biodiesel production from Reutealis trisperma oil using KOH impregnated eggshell as a heterogeneous catalyst. Energies, Vol. 12. 10.3390/en12193714.
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Cahyono, B., E.F. Hasanah, Judiono, M. Suzery and Widayat, 2019. Analysis of piperine content in cabe jawa extracts (Piper retrofractum Vahl) using UV spectrophotometry and HPLC. IOP Conf. Ser.: Mater. Sci. Eng., Vol. 509. 10.1088/1757-899X/509/1/012025.
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