Hamid Kazemi Hakki | Chemical Engineering | Editorial Board Member

Published on by Young Scientists Awards

Dr. Hamid Kazemi Hakki | Chemical Engineering | Editorial Board Member

Soran University | Iraq

Dr. Hamid Kazemi Hakki research focuses on advancing photocatalysis, surface engineering, and material design through the development of highly efficient TiO₂- and ZnO-based thin films, nanocomposites, and hybrid photocatalysts. Significant work has explored sol–gel dip-coated TiO₂–ZnO films, where investigations into surface properties, crystal structure, and film adherence have provided key insights into optimizing photocatalytic performance for pollutant degradation. Additional contributions examine the influence of thermal annealing on TiO₂ film morphology and crystallinity, demonstrating how controlled heat treatments enhance adhesion, surface uniformity, and photocatalytic activity. A major research direction includes the synthesis of Fe-ZnO photocatalysts supported on hydrophobic silica aerogels, enabling floating systems capable of highly efficient photodecomposition of BTX compounds in wastewater. These studies integrate sol–gel chemistry, sequential impregnation, and nanomaterial modification to achieve improved light absorption, charge separation, and catalytic durability. Across multiple projects, the research advances fundamental understanding of structure–function relationships while contributing practical solutions for environmental remediation, solar-driven oxidation processes, and sustainable catalytic technologies. This body of work supports ongoing innovation in photocatalytic materials with enhanced stability, reusability, and performance under real-world conditions.

Featured Publications

Hakki, H. K., Allahyari, S., Rahemi, N., & Tasbihi, M. (2019). Surface properties, adherence, and photocatalytic activity of sol–gel dip-coated TiO₂–ZnO films on glass plates. Comptes Rendus Chimie, 22(5), 393–405.

Najafidoust, A., Asl, E. A., Hakki, H. K., Sarani, M., Bananifard, H., Sillanpaa, M., … (2021). Sequential impregnation and sol–gel synthesis of Fe-ZnO over hydrophobic silica aerogel as a floating photocatalyst with highly enhanced photodecomposition of BTX compounds. Solar Energy, 225, 344–356.

Hakki, H. K., Allahyari, S., Rahemi, N., & Tasbihi, M. (2018). The role of thermal annealing in controlling morphology, crystal structure and adherence of dip-coated TiO₂ film on glass and its photocatalytic activity. Materials Science in Semiconductor Processing, 85, 24–32

Xiansong Shi | Chemical Engineering | Young Scientist Award

Published on by Young Scientists Awards

Dr. Xiansong Shi | Chemical Engineering | Young Scientist Award

National University of Singapore | Singapore

Dr. Shi Xiansong is an accomplished chemical engineer and researcher specializing in the design and synthesis of advanced membranes using covalent organic frameworks (COFs) and metal-organic frameworks (MOFs). He earned his Ph.D. in Chemical Engineering from Nanjing Tech University, China, where his research focused on developing innovative membrane technologies for molecular separation. After completing his doctorate, Dr. Shi conducted postdoctoral research at Nanjing Tech University, where he contributed to the development of high-performance 3D COF membranes for pharmaceutical purification and organic solvent nanofiltration. Currently, he is a Research Fellow at the National University of Singapore, concentrating on structurally oriented 2D COF membranes for precise molecular sieving and topologically defective MOF membranes for enhanced separation applications. Dr. Shi’s research is highly interdisciplinary, integrating materials chemistry, chemical engineering, and nanotechnology. His work addresses critical industrial challenges, including water purification, pharmaceutical refining, organic solvent recycling, and energy storage, providing sustainable solutions that enhance industrial efficiency and reduce environmental impact. His academic output includes 52 SCI-indexed publications, with 26 as first or corresponding author in prestigious journals such as Nature Chemical Engineering, Journal of the American Chemical Society, Angewandte Chemie International Edition, and ACS Nano. Additionally, he has contributed to 8 patent applications and serves as a peer reviewer for top-tier journals like Nature and Advanced Materials. His impactful contributions have been recognized through awards such as the Best Researcher Award in Research Chemistry and the Innovation Team distinction by the China Petroleum and Chemical Industry Federation. Dr. Shi actively engages in international conferences, having chaired sessions and presented pioneering research. With a total of 2,044 citations across 1,461 documents and an h-index of 26, Dr. Shi remains a leading figure in membrane science, driving the development of advanced molecular separation technologies and promoting sustainable practices in chemical engineering and materials science.

Profile: Scopus

Featured Publications

  1. Wei, M., Sun, W., Shi, X., Wang, Z., & Wang, Y. (2016). Homoporous membranes with tailored pores by soaking block copolymer/homopolymer blends in selective solvents: Dissolution versus swelling. Macromolecules, 49, 215–223.

  2. Shi, X., Wang, Z., & Wang, Y. (2017). Highly permeable nanoporous block copolymer membranes by machinecasting on nonwoven supports: An upscalable route. Journal of Membrane Science, 533, 201–209.

  1. Shi, X., Xu, Z., Huang, C., Wang, Y., & Cui, Z. (2018). Selective swelling of electrospun block copolymers: From perforated nanofibers to high flux and responsive ultrafiltration membranes. Macromolecules, 51, 2283–2292.

  2. Wang, R., Shi, X., Xiao, A., Zhou, W., & Wang, Y. (2018). Interfacial polymerization of covalent organic frameworks (COFs) on polymeric substrates for molecular separations. Journal of Membrane Science, 566, 197–204.

  3. Shi, X., Wang, R., Xiao, A., Jia, T., Sun, S., & Wang, Y. (2018). Layer-by-layer synthesis of covalent organic frameworks on porous substrates for fast molecular separations. ACS Applied Nano Materials, 1, 6320–6326.