HO, Yuh-Shan

HO, Yuh-Shan

Visiting Professor
Department: Environmental Engineering
Research interests: Sorption processes; Research trend studies
E-mail: dr_ysho@hotmail.com


Ph.D., Chemical Engineering, the University of Birmingham in the United Kingdom, 1995
M.Phil., Chemistry, the University of Sheffield in the United Kingdom, 1993
B.S., Chemical Engineering, Chung-Yuan Christian University in Taiwan, 1986
Diploma in Chemical Engineering, Lien-Ho Junior College of Technology in Taiwan, 1980


2009–present, Director of the Trend Research Centre, Asia University, Taiwan
2005–2008, Executer of the Research and Development, Taipei Medical University, Wan-Fang Hospital, Taiwan
2007–2008, Assistant Professor, Department of Chemical Engineering, I-Shou University, Taiwan
Oct. 2007–Nov. 2007, Visiting Professor, Department of Chemistry at the National Institute of Technology, Tiruchirappalli, NITT, India
2000–2006, Assistant Professor, School of Public Health at the Taipei Medical University, Taiwan
2004–2005, Visiting Professor, Maître de conférence invité in Laboratoire de Chimie Industrielle - Génie des Procédés, at Conservatoire National des Arts et Métiers, Paris, France
1998–2000, Senior Specialist, Dahin Group, Taiwan
1996–1997, Research Associate, Department of Chemical Engineering, Hong Kong University of Science and Technology
1995–1996, Research Visitor, School of Chemical Engineering, the University of Birmingham in the United Kingdom
1983–1991, Technician, Chung Shan Institute of Science and Technology, Ministry of Defence, Taiwan


Tread research analysis


Sorption processes; Research trend studies


1. Ho, Y.S. and McKay, G. (1999), Pseudo-second order model for sorption processes. Process Biochemistry, 34 (5), 451-465.
2. Ho, Y.S. and McKay, G. (2000), The kinetics of sorption of divalent metal ions onto sphagnum moss peat. Water Research, 34 (3), 735-742.
3. Ho, Y.S. and McKay, G. (1998), Sorption of dye from aqueous solution by peat. Chemical Engineering Journal, 70 (2), 115-124.
4. Ho, Y.S. and McKay, G. (1999), The sorption of lead(II) ions on peat. Water Research, 33 (2), 578-584.
5. Ho, Y.S. (2006), Review of second-order models for adsorption systems. Journal of Hazardous Materials, 136 (3), 681-689.
6. Ho, Y.S. (2004), Citation review of Lagergren kinetic rate equation on adsorption reactions. Scientometrics, 59 (1), 171-177.
7. Ho, Y.S. and McKay, G. (1998), Kinetic models for the sorption of dye from aqueous solution by wood. Process Safety and Environmental Protection, 76 (B2), 183-191.
8. Ho, Y.S., Ng, J.C.Y. and McKay, G. (2000), Kinetics of pollutant sorption by biosorbents: Review. Separation and Purification Methods, 29 (2), 189-232.
9. Ho, Y.S., Porter, J.F. and McKay, G. (2002), Equilibrium isotherm studies for the sorption of divalent metal ions onto peat: Copper, nickel and lead single component systems. Water Air and Soil Pollution, 141 (1-4), 1-33.
10. Ho, Y.S. and McKay, G. (1998), A comparison of chemisorption kinetic models applied to pollutant removal on various sorbents. Process Safety and Environmental Protection, 76 (B4), 332-340.


1. Wase, D.A.J., Forster, C.F. and Ho, Y.S. (1997), Low-cost biosorbents: Batch processes. in Biosorbents for Metal Ions, (Edited by Wase, D.A.J. and Forster, C.F.), Taylor and Francis, London and New York, 141-163.
2. Ho, Y.S. (2008), Application of biosorbents on wastewater treatment. in International Journal of Environment and Pollution, (Edited by M.A. Dorgham), Inderscience Enterprises Ltd, Genève, Switzerland, Volume 34, Nos. 1/2/3/4.
3. Ho, Y.S.* and El-Khaiary, M.I. (2009), Metal research trends in environmental field. in Heavy Metals in the Environment, (Edited by Wang, L.K., Chen, J.P., Hung, Y.T. and Shammas, N.K.), Taylor and Francis & CRC Press, New York, 1-12.
4. Wang, M.H. and Ho, Y.S.* (2012), A historical review of peat related research. In Peat: Formation, Uses and Biological Effects, (Edited by Draguhn, C. and Ciarimboli, N.), Nova Science Pub Inc, 57-80.
5. Fu, H.Z. and Ho, Y.S.* (2012), Bibliometric analysis of thermodynamic research: A Science Citation Index Expanded-based analysis. In Thermodynamics - Fundamentals and Its Application in Science, (Edited by Morales-Rodriguez, R.), InTech, 519-524.


Prof. Ho specializes in environmental science emphasizing on water research. He conducts research in various aspects of water supply, water quality and treatment, and wastewater treatment. He is interested in other areas such as process design and optimization, and research trend and performance studies. He presented the pseudo-second order kinetic model in adsorption field in 1995 and pseudo-isotherm in 1998. One of his articles in 1999, which is related to pseudo second order in adsorption kinetics, received more than 2400 citations and more than 400 annual citations since 2008. There were 65 adsorption related articles, having a total of 10,091 citations, with h-index = 43.

Prof. Ho has been studying on bibliometrics since 2002. In research trend study, he presents the “word cluster analysis” based on distributions of words in titles, author keywords, KeyWords Plus, and words in abstract for research trends of hot topics. He first used six indicators including total, independent, collaborative, first author, corresponding author, and single author publications to evaluate publication performance of individual, institution, and country. Furthermore, in an era of increasing multiple-authorship when the contribution of authors was diluted, he proposed a new indicator of Y-index in 2012. Y-index considered two prominent authorships: first author and corresponding author, providing one reasonable choice to characterize the size and feature of contribution by authors, institutions, and countries. In bibliometrics field, he published 48 papers in SCI or SSCI, cited 531 in total, with h-index = 13.

Prof. Ho published 187 papers in SCI and SSCI journals including 109 first author papers and 137 corresponding author papers, with more than 12,000 citations. Ho’s most cited paper has received more than 2400 citations, while there were 28 papers with more than 100 times, respectively. In addition, average of citations of the 65 adsorption related articles is more than 100 times. His h-index is 43.