TAN SOON HUAT
@chemical.eng.usm.my
Assoc. Prof. Dr./School of Chemical Engineering
Universiti Sains Malaysia
RESEARCH, TEACHING, or OTHER INTERESTS
Chemical Engineering, Materials Science, Environmental Engineering
Scopus Publications
Scopus Publications
Jianghui Zhao, Zhi Liu, Siew Chun Low, Zhenzhen Xu, and Soon Huat Tan
Elsevier BV
Jianghui Zhao, Zhi Liu, Siew Chun Low, Zhenzhen Xu, and Soon Huat Tan
Springer Science and Business Media LLC
S. M. Lee, M. F. M. Yusop, W. L. Ng, M. A. Ahmad, and S. H. Tan
Springer Science and Business Media LLC
Lei Zhou, Haichao Zhang, Abdul Latif Ahmad, Soon Huat Tan, Siew Chun Low, and Changlong Li
Elsevier BV
Jiang-Hui Zhao, Bing Gao, Jun-Xian Hong, Siew Low, Zhen-Zhen Xu, and Soon Tan
National Library of Serbia
Solar-driven interfacial evaporation system has attracted intensive attention owing to its great potential in harnessing renewable solar energy to purify water. To further enhance the solar-driven interfacial evaporation system performance, solar absorber structure with high light-thermal energy conversion efficiency is especially critical. In this work, polyvinyl pyrrolidone/poly(vinylidene fluoride co hexa fluoropropylene)/CuO-nanorods (PVP/PVDF-HFP/CuO-nanorods) membrane was prepared sequentially by electrospinning, heating and hydrothermal processes. The flexible electrospun membrane was used as the photothermal layer in the solar-driven interfacial evaporation system. The evenly distributed CuO nanorods function as solar energy absorbers. The polystyrene foam was used as an insulating layer, and filter paper was inserted in the middle of the polystyrene foam to transport water to the photothermal layer. The designed evaporator was used for the solar evaporation using pure water. As a result, the evaporation rate was 1.11 kg/m2h and the light-thermal energy conversion rate was 75.36%. The outcome of this work provides the potential of solar-driven interfacial evaporation system for water desalination and wastewater purification.
Zhi Liu, Xiaohai Huang, Yi Miao, Bing Gao, Yiling Shi, Jianghui Zhao, and Soon Huat Tan
Elsevier BV
Qian Wen Yeang, Abu Bakar Sulong, and Soon Huat Tan
Wiley
AbstractThis study focuses on the development of an asymmetric membrane comprised of an electrospun carboxyl‐functionalised multi‐walled carbon nanotube (COOH‐MWCNT)/poly (vinyl alcohol) (PVA) composite nanofibre layer on a dense PVA separation layer (MCOOH‐MWCNT). The electrospun nanofibre layer in this study acts as a “pre‐selective layer” instead of its common function as a membrane support. In addition, COOH‐MWCNT, a hydrophilic filler is integrated in the nanofibres to further enhance the membrane pervaporation separation performance. Immense improvement was observed in the pervaporation performance of the resultant asymmetric membranes in the dehydration of aqueous 1,4‐dioxane solutions, owing to the presence of the electrospun composite nanofibres as a hydrophilic layer. The resultant asymmetric membrane showed an increase of nearly 80% in water permeation flux as compared to that of the dense PVA membrane alone, and the separation factor was improved from 392.65 to 605.35. The parameters estimated using Rautenbach model showed that the dehydration of aqueous 1,4‐dioxane solutions via pervaporation is dominantly governed by sorption process. The permeation flux, transport coefficient of water and 1,4‐dioxane of the electrospun asymmetric membrane showed a good agreement in between the experimental data and those predicted using Rautenbach model.
Lei Zhou, Chang Long Li, Pei Thing Chang, Soon Huat Tan, Abdul Latif Ahmad, and Siew Chun Low
Elsevier BV
Wei Lin Ng, Lei Zhou, Abu Bakar Sulong, Eng-Poh Ng, and Soon Huat Tan
Informa UK Limited
In this study, the electrospinning process modifies the commercial polyester filter media to increase filtration efficiency. The polyethylene terephthalate (PET) solution produces electrospun fiber on commercial polyester filter media at various rotation speeds and durations. The PET concentration and electrospinning applied voltage were adjusted accordingly to obtain bead-free electrospun fibers. As a result, the modified filter media’s filtration efficiency is approximately two times higher than the commercial polyester filter media at 300 rpm and 5 hours of electrospinning duration. Furthermore, the efficiency of the single unit modified filter media is 53.76% with an airflow resistance of 39.2 Pa and quality factor of 0.01968 Pa−1 which are comparable to the combination of two units’ air filters. Thus, replacing two units’ air filters having a primary and secondary filter with a single unit modified filter media is justifiable.
Lei Zhou, Soon Huat Tan, Abdul Latif Ahmad, and Siew Chun Low
Wiley
AbstractAquaculture wastewater contains a large amount of nitrogen and phosphorus compounds, which has a serious impact on the environment and is also harmful to aquatic life. Such wastewater also contains high salinity, especially for mariculture activities. This review summarizes the recent progress and potential of electrospun nanofiber membranes (ENMs) in membrane distillation (MD) to treat high‐salinity aquaculture wastewater. Superhydrophobic membranes, which display a prominent wetting resistance, have been widely used to improve the efficiency of the MD process. The intuitive hypothesis is that a membrane with a low surface energy and a low sliding angle has a higher slip effect, thereby improving the wetting resistance of the membrane. Based on this perspective, this review focuses on the wetting tendency of parahydrophobic ENMs with high water adhesion and membrane design for MD wettability. Various strategies are reviewed, including the techniques to induce surface roughness during membrane fabrication and the post‐membrane modification to improve the wetting resistance of MD for long‐term operation. This review provides an in‐depth analysis and a fundamental interpretation of novel perspectives of ENMs for more advanced MD applications. © 2021 Society of Chemical Industry (SCI).
Hor Yan Phin, Jin Chung Sin, Soon Huat Tan, Thiam Leng Chew, and Yit Thai Ong
Wiley
AbstractMembrane filtration is a favorable option in water reclamation from contaminated water source, nevertheless, inevitable membrane fouling which greatly shortens membrane longevity and separation efficiency. The paper aimed to mitigate the membrane fouling through the formation of an asymmetric PSF‐ZnO/CNTs photocatalytic nanocomposite membrane. Instead of direct blending the photocatalyst into polymer matrix, the asymmetric nanocomposite membrane was prepared with prior formation of a self‐assembled ZnO/CNTs photocatalyst layer through wet‐processing technique followed with coating of PSF support layer via phase inversion method. The morphology of the nanocomposite membrane was characterized to confirm the formation of the asymmetric structure. The effect of ZnO/CNTs photocatalyst loading on the pore characteristic and antifouling properties of the PSF‐ZnO/CNTs nanocomposite membrane in dye remediation were assessed. The incorporation of ZnO/CNTs layer was found to endows the membrane with ability to photodegrade methylene blue. The PSF‐ZnO/CNTs membrane with 0.038 g ZnO/CNTs photocatalyst loading (M5) showed the greatest flux recovery ratio (98.46%) and the lowest irreversible fouling ratio (1.54%) while exhibited decent water permeability about 29.99 L/m2h without compromise the methylene blue rejection rate (91.04%).
Jimmy Nelson Appaturi, Thiruchelvi Pulingam, Jothi Ramalingam Rajabathar, Fitri Khoerunnisa, Tau Chuan Ling, Soon Huat Tan, and Eng-Poh Ng
Elsevier BV
Jimmy Nelson Appaturi, R. Jothi Ramalingam, Manickam Selvaraj, Stephen Chia, Soon Huat Tan, Fitri Khoerunnisa, Tau Chuan Ling, and Eng-Poh Ng
Elsevier BV
Tamara Mahmoud Ali Ghrear, Eng-Poh Ng, Cyril Vaulot, T. Jean Daou, Tau Chuan Ling, Soon Huat Tan, Boon Seng Ooi, and Svetlana Mintova
Elsevier BV
Tamara Mahmoud Ali Ghrear, Ying-Wai Cheong, Gin Keat Lim, Daniel Chateigner, Tau Chuan Ling, Soon Huat Tan, and Eng-Poh Ng
Elsevier BV
Mohd Azmier Ahmad, Mohamad Firdaus Mohamad Yusop, and Soon Huat Tan
Springer Singapore
Wan Nurul Huda Wan Zainal, Soon Huat Tan, and Mohd Azmier Ahmad
Periodica Polytechnica Budapest University of Technology and Economics
Concerns about the impact of greenhouse gas have driven the development of new separation technology to meet CO2 emission reduction targets. Membrane-based technologies using carbon membranes that are able to separate CO2 efficiently appears to be a competitive method. This research was focused on the development of carbon membranes derived from polymer blend of polyetherimide and polyethylene glycol to separate CO2 rendering it suitable to be used in many applications such as landfill gas purification, CO2 removal from natural gas or flue gas streams. Carbonization process was conducted at temperature of 923 K and 2 h of soaking time. To enhance membrane separation properties, pore structure was tailored by varying the carbonization heating rates to 1, 3, 5, and 7 K / min. The effect of carbonization heating rate on the separation performance was investigated by single gas permeabilities using CO2 , N2 , and CH4 at room temperature. Carbonization heating rate of 1 K / min produced carbon membrane with the most CO2 / N2 and CO2 / CH4 selectivity of 38 and 64, respectively, with the CO2 permeability of 211 barrer. Therefore, carbonization needs to be carried out at sufficiently slow heating rates to avoid significant loss of selectivity of the derived carbon membranes.
Siew Hoong Shuit and Soon Huat Tan
Elsevier BV
W. A. D. Wan Dalina, M. Mariatti, and S. H. Tan
Springer Science and Business Media LLC
Tamara Mahmoud Ali Ghrear, Severinne Rigolet, T. Jean Daou, Svetlana Mintova, Tau Chuan Ling, Soon Huat Tan, and Eng-Poh Ng
Elsevier BV
Yit Thai Ong and Soon Huat Tan
Springer International Publishing
W. A. D. Wan Dalina, M. Mariatti, and S. H. Tan
Springer Science and Business Media LLC
Qian Wen Yeang, Abu Bakar Sulong, and Soon Huat Tan
Elsevier BV
Wan Nurul Huda Wan Zainal, Soon Huat Tan, and Mohd Azmier Ahmad
Wiley
AbstractThrough a dip‐coating technique, carbon membranes were produced from a polymer blend consisting of the thermally stable polymer polyetherimide (PEI) and the thermally labile polymer polyethylene glycol (PEG). The PEG/PEI carbon membranes were synthesized on an alumina support coated with an Al2O3 intermediate layer. The polymer blend ratio and carbonization temperature influenced the structure and permeation performance of the derived carbon membranes. The porosity of the PEG/PEI carbon membranes increased with higher PEG content in the blends. However, the derived carbon membranes tended to lose gas permeability with raising the carbonization temperatures. The carbon membranes were successfully optimized in order to achieve the highest CO2/CH4 and CO2/N2 selectivities.