Imperial College London

ProfessorKangLi

Faculty of EngineeringDepartment of Chemical Engineering

Professor in Chemical Engineering
 
 
 
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Contact

 

+44 (0)20 7594 5676kang.li

 
 
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Location

 

419ACE ExtensionSouth Kensington Campus

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Summary

 

Publications

Publication Type
Year
to

369 results found

Yan P, Li K, 2024, Readily scalable and controllable micro-structured catalyst with encapsulated Pd@Silicate-1 towards sustainable catalytic emission control, Chemical Engineering Science, Vol: 293, ISSN: 0009-2509

Hierarchical micro-structured catalyst has been proved to be crucial for modular, compact reactor design towards sustainable catalytic processes, including catalytic emission control. However, turning it to reality is hindered by controllability and scalability in high-efficient, cost-effective preparation, particularly when combined with state-of-the-art encapsulated catalysts. Herein, in-situ hydrothermal coating method is developed to achieve tunable incorporation of Pd@S-1 catalyst into micro-structured confined space, and the trade-off between catalyst loading and confined micro-structures’ availability towards the best performance is revealed, e.g. 10 ∼ 50 °C lower T50 with balanced control. Moreover, systematic experiments and CFD simulations prove that (1) flow-through flow pattern, rather than flow-over, in confined space enables better catalyst utilization and performance (>10 °C lower T50), thus optimal micro-structure design is proposed; (3) a loosely bundled scale-up method is the best. This study provides deep insights into understanding and utilizing hierarchical structured catalysts, particularly with confined micro-structures.

Journal article

Leishman C, Mazzone S, Sun Y, Bekris L, Papaioannou EI, Li K, Garcia-Garcia FRet al., 2023, Manganese-based catalysts supported on carbon xerogels for the selective catalytic reduction of NOx using a hollow fibre-based reactor, CATALYSIS TODAY, Vol: 423, ISSN: 0920-5861

Journal article

Banjerdteerakul K, Moghadam F, Peng H, Li Ket al., 2023, Smoothing the wrinkle formation and improving dye rejection performance in porous graphene oxide membranes using high surface curvature hollow fiber substrates, JOURNAL OF MEMBRANE SCIENCE, Vol: 683, ISSN: 0376-7388

Journal article

Banjerdteerakul K, Peng H, Li K, 2023, COF-based nanofiltration membrane for effective treatment of wastewater containing pharmaceutical residues, JOURNAL OF MEMBRANE SCIENCE, Vol: 681, ISSN: 0376-7388

Journal article

Rabuni MF, Li T, Othman MHD, Adnan FH, Li Ket al., 2023, Progress in Solid Oxide Fuel Cells with Hydrocarbon Fuels, ENERGIES, Vol: 16

Journal article

Peng H, Li K, 2023, Nanostructured membranes with interconnected pores via a combination of phase inversion and solvent crystallisation approach, JOURNAL OF MEMBRANE SCIENCE, Vol: 680, ISSN: 0376-7388

Journal article

Banjerdteerakul K, Peng H, Li K, 2023, Covalent organic frameworks based membranes for separation of azeotropic solvent mixtures by pervaporation, JOURNAL OF MEMBRANE SCIENCE, Vol: 678, ISSN: 0376-7388

Journal article

Wang B, Li T, Xiao R, Hartley UW, Ueda M, Han SJ, Li Ket al., 2023, Study on the 4-channel micro-monolithic design with geometry control for reversible solid oxide cell, SEPARATION AND PURIFICATION TECHNOLOGY, Vol: 315, ISSN: 1383-5866

Journal article

Peng H, Minic A, Banjerdteerakul K, Li Ket al., 2023, COF-300/PVDF adsorbents with aligned microchannels for fast removal of polycyclic aromatic hydrocarbons (PAHs), CHEMICAL ENGINEERING JOURNAL, Vol: 465, ISSN: 1385-8947

Journal article

Moghadam F, Zhai M, Zouaoui T, Li Ket al., 2023, Hybrid graphene oxide membranes with regulated water and ion permeation channels via functional materials, CURRENT OPINION IN CHEMICAL ENGINEERING, Vol: 40, ISSN: 2211-3398

Journal article

Peng H, Shah V, Li K, 2023, Unprecedented water permeation in nanostructured PVDF membranes prepared by unidirectional freezing and surface melting method, JOURNAL OF MEMBRANE SCIENCE, Vol: 669, ISSN: 0376-7388

Journal article

Li L, Wang J, Li H, Guan X, Li K, Zhang B, Li X, Zhang Jet al., 2023, Constructing multi-dimensional transport pathways by mixed-dimensional fillers in membranes for efficient CO2 separation, JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING, Vol: 11, ISSN: 2213-2929

Journal article

Larkin C, Lampri K, Mazzone S, Oliva F, Li K, Garcia-Garcia FRet al., 2023, Retrofitting hollow fibre carbon capture systems to decarbonise surface transport, JOURNAL OF CO2 UTILIZATION, Vol: 67, ISSN: 2212-9820

Journal article

Prasetya N, Li K, 2022, Synthesis of defective MOF-801 via an environmentally benign approach for diclofenac removal from water streams, Separation and Purification Technology, Vol: 301, Pages: 1-12, ISSN: 1383-5866

Diclofenac is one of the most popular non-steroidal anti-inflammatory drugs (NSAIDs) which has been widely used worldwide. Despite its popularity, its accumulation in the environment poses danger to the aquatic lives and its removal from the environment is paramount important. Although some conventional adsorbents such as activated carbon can be readily used to address this issue, they usually suffer from low diclofenac adsorption capacity (around 200 mg g−1), resulting in bulky adsorption systems. To overcome this problem, high performance materials such as metal organic frameworks (MOFs) can be employed. Here, we report that we synthesised defective MOF-801 for enhanced diclofenac adsorption via a simple and environmentally benign approach. Differing from a conventional MOF synthesis that usually requires the use of organic solvents at high temperature, the defective MOF-801 could be synthesised at room temperature and by changing the reaction medium from dimethylformamide to water. In addition, we have also successfully shown in this study that the defect concentration in MOF-801 can be rationally tuned by adjusting the modulator concentration (formic acid) in the synthesis solution. The resulting defective MOF-801 can then be used for environmental remediation, which we have shown here by employing them as an adsorbent for diclofenac removal from water streams. The enhanced adsorption of defective MOF-801 in comparison to its non-defective counterpart is due to the pore enlargement of the defective MOF-801 which provides a better pathway to access the adsorption sites. The maximum diclofenac adsorption capacity in a highly defective MOF-801 can reach as high as 680 mg g−1, which is almost 4 times higher than its non-defective counterpart. This study then opens possibilities to engineer the MOF particles for environmental remediation.

Journal article

Wang C, Jiang A, Liu X, Koh KY, Yang Y, Chen JP, Li Ket al., 2022, Amorphous metal-organic framework UiO-66-NO2 for removal of oxyanion pollutants: Towards improved performance and effective reusability, SEPARATION AND PURIFICATION TECHNOLOGY, Vol: 295, ISSN: 1383-5866

Journal article

Wu T, Prasetya N, Li K, 2022, Re-generable and re-synthesisable micro-structured MIL-53 Rachig Rings for ibuprofen removal, Journal of Environmental Chemical Engineering, Vol: 10, Pages: 107432-107432, ISSN: 2213-3437

Water-stable metal–organic frameworks (MOFs) are attractive adsorbent materials for water purification. However, for practical applications, they must be structured into beads, granules, pellets, etc. which would impair their adsorption performances. This study demonstrates the feasibility in developing a water-stable MIL-53 onto a micro-structured alumina Raschig Ring (Al-RR) served not only as an aluminium metal source, but also as a support. Our results showed that a MIL-53 layer covers the entire surface of the Al-RR. The unique structure of the Al-RR allows easy access of water pollutants, hence achieving high adsorption efficiencies with its estimated equilibrium adsorption capacity between 222 and 300 mg g−1. In addition, the synthesised MIL-53 Raschig Ring (MIL-53-RR) can be regenerated or re-synthesised without any significant reduction in the adsorption performances, indicating the potential for possible commercialisation of the MIL-53-RR for water purifications such as ibuprofen removal from water.

Journal article

Wu T, Moghadam F, Li K, 2022, High-performance porous graphene oxide hollow fiber membranes with tailored pore sizes for water purification, JOURNAL OF MEMBRANE SCIENCE, Vol: 645, ISSN: 0376-7388

Journal article

Araki S, Nishikawa Y, Nakata M, Li K, Yamamoto Het al., 2022, Synthesis of hydrophobic silica membranes derived from propyl trimethoxy silane and bis(triethoxysilyl)ethane for separation of volatile organic compounds from aqueous solutions, JOURNAL OF MEMBRANE SCIENCE, Vol: 643, ISSN: 0376-7388

Journal article

Li T, Rabuni MF, Hartley UW, Li Ket al., 2022, Advanced ceramic membrane design for gas separation and energy application, 60 Years of the Loeb-Sourirajan Membrane: Principles, New Materials, Modelling, Characterization, and Applications, Pages: 239-268, ISBN: 9780323886246

Ceramic membranes have shown great potential and versatility in a number of industrial and commercial sectors, aside from an expanding field among research communities. The distinctive feature of superior chemical, mechanical and thermal stability leads to its significance in separation processes, particularly under harsh conditions. In addition, ceramic membranes made from specific materials can theoretically display infinite permselectivity for certain gases, a property that offers great potential for industrial gas separation with improved purity. Such membranes, whose working principles depend on ionic conduction at elevated temperatures, also serve as the core component for membrane reactors or ceramic fuel cells for important energy applications. This chapter includes a general introduction to ceramic membranes, working principles, and the latest membrane design for oxygen permeation membrane (OPM) as well as OPM-based ceramic fuel cells for clean and sustainable energy generation.

Book chapter

Fuzil NS, Othman NH, Alias NH, Marpani F, Othman MHD, Ismail AF, Lau WJ, Li K, Kusworo TD, Ichinose I, Shirazi MMAet al., 2021, A review on photothermal material and its usage in the development of photothermal membrane for sustainable clean water production, DESALINATION, Vol: 517, ISSN: 0011-9164

Journal article

Garcia-Vazquez M, Marin P, Ordonez S, Li K, Tan J, Zhang G, Garcia-Garcia FRet al., 2021, Scaling up a hollow fibre reactor: A study on non-PGM hollow fibre after-treatments for methane emission control under extreme conditions, JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING, Vol: 9, ISSN: 2213-2929

Journal article

Shah V, Wang B, Li K, 2021, High-performance PVDF membranes prepared by the combined crystallisation and diffusion (CCD) method using a dual-casting technique: a breakthrough for water treatment applications, ENERGY & ENVIRONMENTAL SCIENCE, Vol: 14, Pages: 5491-5500, ISSN: 1754-5692

Journal article

Shah V, Prasetya N, Li K, 2021, Polydopamine modification of high-performance PVDF ultrafiltration membranes prepared by the combined crystallisation and diffusion (CCD) method, JOURNAL OF MEMBRANE SCIENCE, Vol: 635, ISSN: 0376-7388

Journal article

Peng H, Shah V, Li K, 2021, Morphology and performance of polyvinylidene fluoride (PVDF) membranes prepared by the CCD method: Thermodynamic considerations, JOURNAL OF MEMBRANE SCIENCE, Vol: 641, ISSN: 0376-7388

The combined crystallisation and diffusion method (CCD) has recently demonstrated its superiority in producing high-performance PVDF membranes over the traditional membrane preparation methods. The CCD method involves a unidirectional cooling step in its membrane preparation. While the role of kinetics behind the CCD method has been thoroughly studied by varying the cooling rate, the cooling temperature itself has never been changed from −30 °C. This study therefore explores the thermodynamic implications of changing the cooling temperature during the CCD process on the morphology and performance of the resultant membranes. Two different molecular weights of PVDF were studied and different batches of membranes were prepared by progressively changing the cooling temperature from −30 °C to 0 °C. The results showed that for both the PVDF types, with an increase in cooling temperature, the separation surface pore sizes and membrane permeances increase but more so for the one prepared using the higher molecular weight PVDF. This showcases the ability to tailor the properties of the CCD membranes by merely changing the cooling temperature. The membranes were then also characterised for their morphology, mechanical strengths and crystallinity to help further understand the role of cooling temperature in affecting these membrane properties.

Journal article

Araki S, Yamashita R, Li K, Yamamoto Het al., 2021, Preparation and gas permeation properties of all-silica CHA zeolite hollow fiber membranes prepared on amorphous-silica hollow fibers, JOURNAL OF MEMBRANE SCIENCE, Vol: 634, ISSN: 0376-7388

Journal article

Prasetya N, Li K, 2021, MOF-808 and its hollow fibre adsorbents for efficient diclofenac removal, Chemical Engineering Journal, Vol: 417, Pages: 1-11, ISSN: 1385-8947

The popularity of diclofenac, one of the highly effective non-steroidal anti-inflammatory drugs (NSAIDs), has led to its excessive consumptions. Consequently, its presence in water bodies is continually increasing and poses serious threats to ecosystems. Adsorption processes have been employed to address this issue. However, most of the commercially available adsorbents such as activated carbon, zeolite, etc. suffer from relatively low diclofenac adsorption capacity (100-200 mg g-1) and slow kinetics. Herein, we explore the potential of MOF-808 as a superior adsorbent for diclofenac removal. Benefitting from its high specific surface area and large pore aperture, the maximum diclofenac adsorption capacity achieved in this study reaches 833 mg g-1 with almost 95% removal within first hour. This performance is one of the highest reported adsorbents for diclofenac removal so far and has led us to have further commercial exploitation by employing a yttria-stabilised zirconia (YSZ) hollow fibre support where the MOF-808 adsorbent is deposited on its outer surface. Such a configuration is beneficial from a practical point-of-view, as it eliminates the requirement of separation of powdered adsorbents from treated water once the adsorption process finishes. Also, the hollow fibre configuration not only substantially increases the surface-area-to-volume ratio of adsorption systems, but also reduces the maldistribution of flows commonly unavoidable in conventional packed bed adsorption columns. The high-efficiency of the MOF-808 hollow fibre adsorbent is exhibited by retainment of its equilibrium adsorption capacity of 796 mg g-1. More importantly, the MOF-808 hollow fibre adsorbent can withstand at least 4 adsorption-regeneration cycles without any significant reduction in the adsorption performances, indicating the potential for possible commercialisation of the MOF-808 adsorbent for diclofenac removal from water.

Journal article

Khamhangdatepon T, Tongnan V, Hartley M, Sornchamni T, Siri-Nguan N, Laosiripojana N, Li K, Hartley UWet al., 2021, Mechanisms of synthesis gas production via thermochemical cycles over La<sub>0.3</sub>Sr<sub>0.7</sub>Co<sub>0.7</sub>Fe<sub>0.3</sub>O<sub>3</sub>, INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, Vol: 46, Pages: 24666-24675, ISSN: 0360-3199

Journal article

Shah V, Wang B, Li K, 2021, Blending modification to porous polyvinylidene fluoride (PVDF) membranes prepared via combined crystallisation and diffusion (CCD) technique, JOURNAL OF MEMBRANE SCIENCE, Vol: 618, ISSN: 0376-7388

Journal article

Kazakli M, Mutch GA, Triantafyllou G, Gil AG, Li T, Wang B, Bailey JJ, Brett DJL, Shearing PR, Li K, Metcalfe Iet al., 2021, Controlling molten carbonate distribution in dual-phase molten salt-ceramic membranes to increase carbon dioxide permeation rates, JOURNAL OF MEMBRANE SCIENCE, Vol: 617, ISSN: 0376-7388

Journal article

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