Harvey Yi Huang

Harvey Yi Huang
The University of Edinburgh | UoE · School of Engineering

Doctor of Philosophy
We are currently looking for PhD candidates with strong backgrounds in graphene-based membranes.

About

52
Publications
18,915
Reads
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Introduction
The Huang research group is housed in the School of Engineering at the University of Edinburgh, UK. Our research aims to develop innovative methodologies for functional porous materials fabrication based on thorough understanding of their growth mechanisms. We use advanced research techniques and nanotechnologies to explore, investigate, and engineer their nanostructures to address the challenging issues in many industrial processes, e.g., mixture separation, gas storage, catalytic oil upgrading, water treatment and desalination. More specifically, our team specialises in the synthesis and growth studies of porous materials (e.g., molecular sieves, metal-organic frameworks, graphene-based materials), energy-efficient membrane separation, advanced adsorption and catalyst desgn.
Additional affiliations
September 2021 - September 2021
The University of Edinburgh
Position
  • Lecturer
September 2017 - September 2021
The University of Edinburgh
Position
  • Lecturer
September 2015 - June 2017
Georgia Institute of Technology
Position
  • PostDoc Position

Publications

Publications (52)
Article
Membranes with ultrafast solvent transport for precise molecular separations are desired to reduce the energy consumption in the separation processes. Graphene oxide (GO)-based membranes have tremendous potential for precise molecular filtration. However, the construction of well-defined interlayer channels that overcome permeance-rejection trade-o...
Article
A novel continuous fluid circulation system was designed and employed for the impregnation seeding and fabrication of zeolitic imidazolate framework (ZIF) crystals on the internal surface of polymeric hollow fibre membranes. Application of impregnation seeding has been proven effective to decrease crystal size, consequently increasing surface rough...
Article
Full-text available
The exponential rise in lithium demand over the last decade, as one of the largest sources for energy storage in terms of lithium-ion batteries (LIBs), has posed a great threat to the existing lithium supply and demand balance. The current methodologies available for lithium extraction, separation and recovery, both from primary (brines/seawater) a...
Article
Full-text available
Integrated metal–organic frameworks (MOFs) with graphene oxide (GO) have aroused huge interest in recent years due to their unique properties and excellent performance compared to MOFs or GO alone. While a lot of attention has been focused on the synthesis methodologies and the performance analysis of the composite materials in recent years, the fu...
Article
Full-text available
Membrane separation has provided efficient solutions for addressing energy and environmental challenges over the past few decades due to its low energy consumption, convenient operation, and reduced secondary pollution. An energy-efficient membrane separation process usually requires high-performance membranes with outstanding chemical, mechanical...
Article
With the widespread promotion of new energy electric vehicles for lithium batteries worldwide, the demand for lithium is surging. And the industry chain of lithium is in the process of technological transformation and upgrading, the extraction of lithium from salt lake brine is becoming the main source. Comprehensively compare the precipitation met...
Article
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The knowledge gap on adsorption of complex mixtures in the literature relative to single component data represents a persistent obstacle to developing accurate process models for adsorption separations. The collection of mixed gas adsorption data is an imminent need for improved understanding of the behavior of adsorbent systems in these diverse ad...
Article
Zeolite belongs to one of the most important families of solid acid catalysts in chemical industries. It is, however, severely constrained by the diffusion limitation for bulky molecules, a lack of multifunctionality for sequential reactions and pore adaptability towards specific adsorbates due to its small micropore size and simple aluminosilicate...
Article
Full-text available
Zirconium-based metal-organic frameworks (MOFs) have attracted interest due to their chemical and thermal stability and structural tunability. In this work, we demonstrate the tuning of the wettability of UiO−66 via defect-engineering for efficient oil/water separation. UiO−66 crystals with controlled levels of missing-linker defects were synthesiz...
Article
Smart materials with unique surface wetting properties have attracted considerable interest, particularly for oil/ water separation, where oil can cause severe environmental damage. Despite the considerable progress made in the past decade, critical challenges remain in scaling up, as smart materials are either expensive to fabricate or involve com...
Article
Full-text available
Energy and environmental issues presently attract a great deal of scientific attention. Recently, two-dimensional MXenes and MXene-based nanomaterials have attracted increasing interest because of their unique properties (e.g., remarkable safety, a very large interlayer spacing, environmental flexibility, a large surface area, and thermal conductiv...
Article
Full-text available
The original version of this article was published open access. Unfortunately, due to a technical issue, the copyright holder name in the online version (HTML and XML) is incorrectly published as “Springer Science+Business Media, LLC, part of Springer Nature 2018”. Instead, it should be “The Author(s) 2018”.
Article
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This paper reports the results of an international interlaboratory study led by the National Institute of Standards and Technology (NIST) on the measurement of high-pressure surface excess carbon dioxide adsorption isotherms on NIST Reference Material RM 8852 (ammonium ZSM-5 zeolite), at 293.15 K (20 °C) from 1 kPa up to 4.5 MPa. Eleven laboratorie...
Article
Full-text available
The MIL-53 class of metal-organic frameworks (MOFs) has recently generated interest as potential adsorbents for xylene mixture separations. Cost-effective separation of xylene isomers is challenging owing to the similarity in their molecular structures, kinetic diameters and boiling points. Here we report a systematic experimental and computational...
Article
Graphene oxides (GO) were coated on three different commercially available polyethersulfone (PES) ultrafiltration membranes (nominal molecular weight cutoffs; 5, 10, and 30 kDa) via a simple vacuum filtration process in our laboratory. The physicochemical properties of resultant membranes were analyzed by Fourier-transform infrared spectroscopy, Ra...
Article
Three commercially available ultrafiltration (UF) membranes (poly(ether sulfone), PES) that have nominal molecular weight cut-offs (5, 10, and 30 kDa) were coated with graphene oxide (GO) nanosheets. Field-emission scanning electron microscopy, Fourier-transform infrared spectroscopy, confocal laser scanning microscopy, water contact angle measurem...
Article
In this study, molecular layer deposition (MLD) was used as a novel and highly controllable method to prepare TiO2 nanofiltration membranes with approximately 1 nm pores for water purification. Number of deposition cycles and precursors (TiCl4 and ethylene glycol) were used to control membrane quality and final pore sizes, respectively. Optimized T...
Article
Full-text available
Ti3+-doped TiO2 nanosheets with tunable phase composition (doped TiO2 (A/R)) were synthesized via a hydrothermal method with high surface area anatase TiO2 nanosheets TiO2 (A) as a substrate, structure directing agent, and inhibitor; the activity was evaluated using a probe reaction-photocatalytic CO2 conversion to methane under visible light irrad...
Article
Greatly improved zeolite membranes were prepared by using high-aspect-ratio zeolite seeds. Slice-shaped seeds with a high aspect ratio (AR) facilitated growth of thinner continuous SAPO-34 membranes of much higher quality. These membranes showed N2 permeances as high as (2.87±0.15)×10(-7) mol m(-2) s(-1) Pa(-1) at 22 °C while maintaining a decent N...
Article
Full-text available
Zeolites/molecular sieves with uniform, molecular-sized pores are important for many adsorption-based separation processes. Pore size gaps, however, exist in the current zeolite family. This leads to a great challenge of separating molecules with size differences at ~0.01 nm level. Here, we report a novel concept, pore misalignment, to form a conti...
Article
SAPO-34 membranes were synthesized by several routes towards N2/CH4 separation. Membrane synthesis parameters including water content in the gel, crystallization time, support pore size, and aluminum source were investigated. High performance N2-selective membranes were obtained on 100-nm-pore alumina tubes by using Al(i-C3H7O)3 as aluminum source...
Article
Greatly improved zeolite membranes were prepared by using high-aspect-ratio zeolite seeds. Slice-shaped seeds with a high aspect ratio (AR) facilitated growth of thinner continuous SAPO-34 membranes of much higher quality. These membranes showed N2 permeances as high as (2.87±0.15)×10−7 mol m−2 s−1 Pa−1 at 22 °C while maintaining a decent N2/CH4 se...
Article
Fouling of ultrafiltration (UF) membranes in oil/water separation is a long-standing issue and a major economic barrier to their use in a broad range of applications. Currently reported membranes typically show severe fouling, resulting from the strong oil adhesion on the membrane surface and/or oil penetration inside the membranes. This greatly de...
Article
Full-text available
A composite zeolite adsorbent was prepared by conformally depositing an ultrathin porous TiO2 coating on the external surface of the 5A zeolite by molecular layer deposition (MLD) and subsequent calcination. The composite adsorbent showed significantly improved ideal adsorption selectivity for CO2-CH4, CO2-N2 and propylene-propane.
Article
Full-text available
Ultraviolet (UV) irradiation was utilized to gradually modify the chemistry and structure of graphene oxide (GO) flakes, as confirmed by XPS and AFM. Ultrathin GO coatings/membranes, made of UV-irradiated flakes, showed tunable underwater oleophobicity. UV-treated, superoleophobic GO membranes exhibited excellent antifouling capability for oil/wate...
Article
Full-text available
Ultrathin, molecular-sieving membranes have great potential to realize high-flux, high-selectivity mixture separation at low energy cost. Current microporous membranes [pore size < 1 nanometer (nm)], however, are usually relatively thick. With the use of current membrane materials and techniques, it is difficult to prepare microporous membranes thi...
Article
Untreated USY zeolites have low tolerance to hot liquid water, which makes them unsuitable for upgrading of biomass-derived liquid compounds in biphasic systems. However, the stability of USY zeolites can be greatly improved by functionalizing their external surface with organosilanes. Here, the structural sta- bility of a commercial H-USY zeolite...
Conference Paper
Full-text available
Introduction Zeolites are effective catalyst for many reactions of industrial interest, most of them carried out in the vapor phase. However, in cases such as the upgrading of biomass-derived compounds, reactions in the aqueous liquid phase at temperatures in the range 150-250°C are required. For example, biomass pyrolysis products are not particul...
Article
Full-text available
Poly(furfuryl alcohol) (PFA) composite membranes were prepared by polymerization of furfuryl alcohol (FA) using sulfuric acid (H2SO4) as the catalyst and polysulfone ultrafiltration membrane as the substrate. The membrane samples were characterized by ATR-IR, TGA, SEM, and gas permeation technique. The effects of synthesis conditions including the...
Article
Full-text available
Growth of silicalite with graphene oxide (GO) nanosheets occurred via attachment of GO onto the silicalite surface, and entrapment of GO nanosheets inside single crystals. Electrically conductive composites were produced by calcination in nitrogen whereas silicalite crystals with slit-like mesopores of sizes 20-25 Å were obtained after GO burn-off.
Article
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Crystallization of sodalite was studied in an ethanol–Na2O–Al2O3–SiO2–H2O system. The addition of ethanol was observed to significantly affect the crystallization process and final crystal sizes and morphologies. Micron-sized sodalite particles with disc and thread-ball-like shapes were produced at low ethanol contents whereas sodalite particles wi...
Article
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Highly crystalline perovskite ceramics were templated by an eggshell membrane (ESM) via strong metal-protein bonding. Templated Sm0.5Sr0.5CoO3 (SSC) ceramics retained an interwoven fibrous structure at a temperature up to 1000 °C. The use of citric acid-assisted sol–gel coating in the template synthesis greatly enhanced the crystallininty of the ce...
Article
Full-text available
Polymers have attracted considerable attention in the synthesis of zeolites with controllable structures and morphologies (sizes and shapes) because of their three-dimensional networks, abundant functional groups and designed molecular sizes. Polymer networks can function as a space-confinement additive, a mesopore-forming agent, etc., and signific...
Article
Macroporous NaP zeolite monoliths (M-ZPMs) with designed shapes such as cylinder, rectangular-prism, and donut shapes were synthesized via gelcasting of the aged zeolite gel with colloidal silica as a binder and subsequent vapor-phase-transport (VPT) synthesis. X-ray diffraction (XRD), scanning electron microscopy (SEM), mercury porosimetry, and ni...
Article
DNA vaccines or proteins are capable of inducing specific immunity; however, the translation to the clinic has generally been problematic, primarily due to the reduced magnitude of immune response and poor pharmacokinetics. Herein we demonstrate a composite microsphere formulation, composed of mesoporous silica spheres (MPS) and poly(D,L-lactide-co...
Article
Hierarchical porous particles aggregated from primary zeolite NaY nanocrystals were hydrothermally synthesized via a three-stage temperature control strategy, without adding any organic additives. The as-synthesized samples were characterized using powder X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy...
Article
Full-text available
In this work, we study the structural response of MFI, FAU and LTA type zeolite powders to the presence of cations commonly found in sea salts including Na + , K + , Ca 2+ , and Mg 2+ . Zeolite powders were exposed to seawater solution (3.8wt% (TDS) ), and the structure of the zeolite powders was characterized by synchrotron X-ray powder diffractio...
Conference Paper
Hierarchical porous particles aggregated from primary Na-form zeolite Y nanocrystals were hydrothermally synthesized using a three-stage variable-temperature program without adding any organic additives, pore-generating agents and seeding crystals. The as-synthesized samples were characterized using powder X-ray diffraction (XRD), scanning electron...
Conference Paper
Full-text available
Multi-modal porous Faujasite particles assembled from primary zeolite NaY nanocrystals were hydrothermally synthesized using a three-stage variable-temperature program without adding any organic templates and seeding crystals. The powder X-ray diffraction (XRD) patterns of the synthesized samples showed the diffraction peaks associated with zeolite...
Article
Full-text available
A new drying-free colloidal casting method was developed for shape forming of ceramics with controllable microstructure. A polymerizable solvent such as furfuryl alcohol (FA) was employed to disperse ceramic particles to form a colloidal ceramic suspension with good fluidity. After casting, the solvent was polymerized into a polymer, resulting in s...
Article
A novel synthesis method has been developed to synthesize zeolite nanocrystals with controllable size and size distribution through conversion of colloidal silica nanoparticles in a mesoporous carbon matrix. Colloidal silica nanoparticles serving as the silica source as well as the hard template were embedded in the mesoporous carbon via in situ po...
Article
Full-text available
A novel confined-space synthesis method has been developed to synthesize zeolite nanocrystals. Colloidal silica nanoparticles serving as the silica source as well as the hard template were embedded in the mesoporous carbon via in situ polymerization of furfuryl alcohol (FA) in the presence of tri-block copolymer (Pluronic P123), and then reacted wi...
Conference Paper
Full-text available
Abstract A novel confined-space synthesis method has been developed to synthesize zeolite nanocrystals from colloidal silica nanoparticles. The silica nanoparticles function as a silica source as well as a hard template for zeolite nanocrystals. The synthetic zeolite nanocrystals possess similar size distribution corresponding to that of colloida...
Article
For the purpose of controlling zeolite crystal size, crystallization of zeolite NaA and NaY in glutaraldehyde crosslinked chitosan (GA-CS) hydrogels was studied in this paper. The zeolite crystals were produced by penetration of Na2O–Al2O3–H2O alkaline solution into GA-CS hydrogels filled with colloidal silica, followed by hydrothermal treatment an...

Projects

Projects (5)
Archived project
Dear Colleagues, Membrane separation has proven to provide an efficient solution to energy and environmental-related challenges due to its low energy consumption, ease of operation, and reduced secondary pollution. The development of membranes with special nanostructures showing outstanding chemical/mechanical properties and superior separation characteristics is crucial for an energy-efficient separation process. In recent years, it has become increasingly popular to identify concepts or strategies in nature for the design of energy-efficient separation membranes. This Special Issue of Membranes attempts to collect the latest innovations in the preparation and characterization of energy-efficient separation membranes, advanced membrane separation processes, and modelling of the behaviour of energy-efficient separation membranes. We encourage authors, especially those from leading laboratories and institutes, to submit their latest results. Submissions of high-quality research in the scaling up of energy-efficient membrane production are also welcomed. Dr. Yi (Harvey) Huang Guest Editor Manuscript Submission Information Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website. Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Membranes is an international peer-reviewed open access monthly journal published by MDPI. Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1800 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions. Keywords energy-efficient, cost-effective membrane separation ultra-thin membrane nanostructured membrane thin film membrane material membrane fouling wastewater treatment and purification gas separation carbon capture membrane characterization process modelling
Project
Special Issue Information Dear Colleagues, Oil pollution is a serious global issue because of the large amounts of oily wastewater produced by petrochemical and other industries, as well as by frequent off-shore oil-spill accidents. The UK Department of Energy and Climate Change (DECC) issues guidance addressed at all companies involved in offshore exploration and production where oil may be released into the sea or other water systems. The regulatory limit for the concentration of oil in produced water discharged into the sea is set at a 30 mg/l performance standard (this figure applies as averaged over a monthly period). At any one time, the concentration must not exceed 100 mg/l. Therefore, it is in great demand to develop effective techniques to treat oil-polluted wastewater at such low oil/grease concentrations in order to satisfy the stringent governmental limitations and preserve the environment. Membrane techniques have been widely employed for water purification and are very effective in separating stabilized oil emulsions-especially for removing oil droplets. However, traditional membranes suffer from membrane fouling both on surfaces and in internal structures, which significantly limits their service time and degrades separation performance in practical operations. Recently, the concept of adopting biomimetic hierarchical roughness in membrane design has aroused great interest. This new generation of membranes, based on bionics, has opened a brand-new door to antifouling oil/water separation. This Special Issue of Membranes attempts to include latest innovations in preparation and characterization of smart membranes and coatings, advanced oil/water separation processes, and modeling of the behavior of smart membranes. We encourage authors, especially those from top laboratories, to submit their latest results. Submissions of high-quality research in membrane scaling-up production/commercialization are also welcomed. Dr. Yi (Harvey) Huang Guest Editor Manuscript Submission Information Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website. Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Membranes is an international peer-reviewed open access quarterly journal published by MDPI. Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 850 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions. Keywords: Smart membrane Oily wastewater Emulsion Antifouling Biomimic Superoleophobicity Surface wettability Self-cleaning Surface modification Nanofiltration Published Papers This special issue is now open for submission.