Projects per year
Personal profile
Biography
Prof. Ir. Dr Chai Siang Piao is a Professor of Chemical Engineering and the Deputy Head of School (Research) for School of Engineering. Prof. Chai is an active researcher in the areas of heterogeneous catalysis, photocatalysis, reaction engineering and advanced functional materials. His current research interest primarily focuses on the development of advanced photocatalytic materials for environmental and sustainable energy applications. He has published more than 150 articles in ISI journals accumulating total citations of more than 10,000 times. Prof. Chai has won numerous awards and recognitions, which include Global Highly Cited Researcher, Malaysia’s Research Star Award, Top Research Scientist Malaysia, National Outstanding Educator Award (Research), etc. Prof. Chai is also an editorial board member for 6 international journals, grant assessor for numerous national and international funding agencies as well as scientific reviewer for more than 80 ISI-journals published by major publishers, such as NPG, AAAS, ACS, Wiley, CellPress, RSC, Elsevier, etc
Research interests
In recent decades, significant endeavours have been dedicated in resolving the escalating energy and environmental problems which have raised to an alarming rate. Photocatalysis, a process which drives chemical transformations by harvesting solar light in the presence of a catalyst, has emerged as a promising route to address these challenges. This technology appeals to be sustainable and less energy consuming due to its prominent feature of utilizing inexhaustible solar energy as the main driving force. Our research activities primarily focus on the rational design of novel, robust nanostructured materials for the applications in solar energy production and environmental remediation, which include pollutants degradation, hydrogen and oxygen evolution by water splitting as well as carbon dioxide photoreduction into hydrocarbon fuels such as methane and methanol. These projects are funded by Science Fund (MOSTI), NanoMITe -LRGS and FRGS (MOHE).
Monash teaching commitment
- CHE3164 - Reaction Engineering
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
Research area keywords
- Catalysis
- reaction engineering
- photocatalysis
Collaborations and top research areas from the last five years
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Æinstein: Adversarial AI amongst Materials Discovery Domains
Phan, R. (Primary Chief Investigator (PCI)), Pal, A. (Chief Investigator (CI)), Rajanala, S. (Chief Investigator (CI)), Ting, C.-M. (Chief Investigator (CI)), Krishnasamy, G. (Chief Investigator (CI)), Noman, F. (Chief Investigator (CI)), Shu Min, L. (Chief Investigator (CI)), Liu, J. (Chief Investigator (CI)), Rudolph, C. (Chief Investigator (CI)), Steinfeld, R. (Chief Investigator (CI)), Siang Piao, C. (Chief Investigator (CI)), Tumian, A. (Partner Investigator (PI)) & Nik Hashim, N. N. W. (Partner Investigator (PI))
1/06/24 → 31/05/26
Project: Research
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Development of electro-catalysts for CO2 reduction study from flaring or post-combustion
Siang Piao, C. (Primary Chief Investigator (PCI)), Putri, L. (Chief Investigator (CI)), Lling Lling, T. (Chief Investigator (CI)) & Meng Nan, C. (Chief Investigator (CI))
15/05/24 → 14/12/25
Project: Research
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Rational Integration of Hierarchical Photocatalysts with Cascade Electric Field and Modulated Atomic Sites for Hydrogen Production via Water Splitting
Siang Piao, C. (Primary Chief Investigator (PCI)), Chang, W. S. (Chief Investigator (CI)), Lling Lling, T. (Chief Investigator (CI)), Ng, B. J. (Chief Investigator (CI)), Mohamed, A. R. (Chief Investigator (CI)) & Lee, H. W. (Chief Investigator (CI))
1/10/23 → 30/09/26
Project: Research
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Production of Solar Hydrogen Fuel from (Photo)-Electrochemical Water Splitting: A Sustainable Hydrogen Production Route to Decarbonise the Oil and Gas Industry
Meng Nan, C. (Primary Chief Investigator (PCI)), Siang Piao, C. (Chief Investigator (CI)), Teoh, W. Y. (Chief Investigator (CI)), Jalil, A. A. (Chief Investigator (CI)) & Tang, J. (Chief Investigator (CI))
1/03/22 → 31/12/25
Project: Research
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Functional Nanomaterials in Addressing the CO2 Mitigation Challenge
Mohamed, A. R. (Primary Chief Investigator (PCI)) & Siang Piao, C. (Chief Investigator (CI))
1/04/21 → 31/03/26
Project: Research
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Hybridizing O-C3N4 with NIR-responsive Cu2(OH)PO4 for effective broad-spectrum solar driven inactivation of Escherichia coli and methicillin-resistant Staphylococcus aureus
Dahlan, N. A. N., Putri, L. K., Ooi, C. W., Tan, L. L. & Chai, S. P., 7 Feb 2026, In: Separation and Purification Technology. 380, Part 3, 15 p., 135447.Research output: Contribution to journal › Article › Research › peer-review
Open Access -
Boosted Scavenger-Free Overall Nitrogen Photofixation with Molybdenum Incorporated Bismuth-Rich Oxychlorides
Kok, S. H. W., Chong, W. K., Khor, J., Liu, R., Tan, L. S., Low, J., Ng, Y. H., Kong, X. Y., Ong, W.-J., Chai, S.-P. & Tan, L.-L., 28 Apr 2025, In: Small. 21, 17, 11 p., 2501119.Research output: Contribution to journal › Article › Research › peer-review
Open Access6 Citations (Scopus) -
Engineering high-performance BiVO4 homo- and heterojunction Photoanodes for solar-driven Photoelectrochemical water splitting applications
Teh, I. J., Putri, L. K., Yaw, C. S., Ng, W. C., Chong, M. N. & Chai, S. P., 15 Oct 2025, In: Coordination Chemistry Reviews. 541, 51 p., 216773.Research output: Contribution to journal › Review Article › Research › peer-review
Open Access6 Citations (Scopus) -
Interpretable machine learning framework: Predicting catalytic activities of complex photocatalysts towards CO2 conversion
Er, C. C., Putri, L. K., Ang, Y. S., Yang, H. Y. & Chai, S. P., Sept 2025, In: Materials Today Physics. 57, 10 p., 101800.Research output: Contribution to journal › Article › Research › peer-review
Open Access -
Lead-free halide perovskites and Bi-BTC frameworks: Engineering S-scheme heterojunctions for photocatalytic CO2 conversion
Lee, J., Waterhouse, G. I. N., Mao, Y., Wang, Z., Zhu, E., Low, J., Chai, S. P. & Tan, L. L., 15 May 2025, In: Applied Catalysis B: Environmental. 365, 11 p., 124942.Research output: Contribution to journal › Article › Research › peer-review
Open Access10 Citations (Scopus)
Prizes
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2023 World's Top 2% Scientists by Stanford University
Siang Piao, C. (Recipient), 2023
Prize: National/international honour
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Top 1% Highly Cited Researcher by Clarivate Analytics
Siang Piao, C. (Recipient), 2023
Prize: National/international honour
Activities
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Engineering Council (External organisation)
Siang Piao, C. (Member)
2023Activity: Industry, Government and Philanthropy Engagement and Partnerships › Membership of networks of excellence
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Kementerian Pendidikan Tinggi (Ministry of Higher Education Malaysia) (External organisation)
Siang Piao, C. (Member)
2023Activity: Industry, Government and Philanthropy Engagement and Partnerships › Membership of an advisory panel/policy group/ board
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2023 FRGS Assessor at ministry level
Siang Piao, C. (Fellow)
2023Activity: External Academic Engagement › Grant review responsibilities
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2023 Top Research Scientists Malaysia (TRSM) Selection Panel
Siang Piao, C. (Reviewer)
2023Activity: External Academic Engagement › Peer review panel or committee
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Board of Engineers Malaysia (External organisation)
Siang Piao, C. (Member)
2023Activity: Industry, Government and Philanthropy Engagement and Partnerships › Membership of networks of excellence