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Featured researches published by T.D. Bui.


Journal of the American Chemical Society | 2010

Determination of Oxygen Sources for Oxidation of Benzene on TiO2 Photocatalysts in Aqueous Solutions Containing Molecular Oxygen

T.D. Bui; Akira Kimura; Shigeru Ikeda; Michio Matsumura

Photocatalytic oxidation of benzene to CO(2) was studied in aqueous solutions using different kinds of TiO(2) powders, and isotopic oxygen tracers (H(2)(18)O and (18)O(2)) were used to investigate the oxidation process. Phenol was produced as a main intermediate in solution. When anatase powders, which showed high activity for oxidation of benzene, were used, 70-90% of oxygen introduced into phenol was from water. On the other hand, when rutile powders were used, only 20-40% of the oxygen was from water. The rest was from molecular oxygen in both cases. The rate of phenol production by using molecular oxygen was nearly the same between anatase and rutile powders. Hence, the high activity of anatase powders for oxidation of benzene to CO(2) is attributed to their high activity for oxidation of benzene to phenol, which is considered to be the rate-determining step, using water as the oxygen source. The processes using water and molecular oxygen as the oxygen sources are ascribed, respectively, to oxygen transfer and hole transfer processes in the initial step of benzene oxidation.


Energy Conversion and Management | 2016

Study on dew point evaporative cooling system with counter-flow configuration

Jie Lin; Kyaw Thu; T.D. Bui; R.Z. Wang; Kim Choon Ng; K.J. Chua


Separation and Purification Technology | 2015

Experimental and modeling analysis of membrane-based air dehumidification

T.D. Bui; Feng Chen; Aqdas Nida; K.J. Chua; Kim Choon Ng


Energy | 2016

Unsteady-state analysis of a counter-flow dew point evaporative cooling system

Jie Lin; Kyaw Thu; T.D. Bui; R.Z. Wang; Kim Choon Ng; M. Kumja; K.J. Chua


Applied Thermal Engineering | 2017

Modelling and experimental investigation of the cross-flow dew point evaporative cooler with and without dehumidification

Jie Lin; R.Z. Wang; M. Kumja; T.D. Bui; K.J. Chua


Energy Conversion and Management | 2017

Multivariate scaling and dimensional analysis of the counter-flow dew point evaporative cooler

Jie Lin; R.Z. Wang; M. Kumja; T.D. Bui; K.J. Chua


Applied Energy | 2016

Thermodynamic analysis on the part-load performance of a microturbine system for micro/mini-CHP applications

Kyaw Thu; Bidyut Baran Saha; K.J. Chua; T.D. Bui


Desalination | 2016

Development of a model for spray evaporation based on droplet analysis

Q. Chen; Kyaw Thu; T.D. Bui; Y. Li; Kim Choon Ng; K.J. Chua


Journal of Applied Polymer Science | 2017

Effect of hygroscopic materials on water vapor permeation and dehumidification performance of poly(vinyl alcohol) membranes

T.D. Bui; Y. Wong; Kyaw Thu; Seung Jin Oh; M. Kum Ja; Kim Choon Ng; I. Raisul; K.J. Chua


Applied Catalysis B-environmental | 2012

Isotope tracing study on oxidation of water on photoirradiated TiO2 particles

T.D. Bui; En Yagi; Takashi Harada; Shigeru Ikeda; Michio Matsumura

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K.J. Chua

National University of Singapore

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Kim Choon Ng

King Abdullah University of Science and Technology

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Jie Lin

National University of Singapore

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R.Z. Wang

Shanghai Jiao Tong University

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M. Kumja

National University of Singapore

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Y. Wong

National University of Singapore

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Aqdas Nida

National University of Singapore

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