Dr Tuan Nguyen

Research Fellow

Centre for Mined Land Rehabilitation
Sustainable Minerals Institute

Overview

Dr Tuan Nguyen is working at the School of Chemical Engineering of the University of Queensland. He has evolved in extensive research activities in the fields of colloid and interface science, and their practical applications in various disciplinary and interdisciplinary contexts, including agriculture, environment, and minerals processing. Dr Nguyen’s research theme is about Organo-Mineral Multiscale Interactions, and is under the mentorship of Professor Simon Biggs. His current work focuses on the correlations between microscopic and molecular structures of polymeric surfaces with their macroscopic interfacial properties of wetting and adhesion, using both experimental and modelling approaches:

  • Synthesis and characterization of novel (block) (co)polymers by RAFT
  • Atomistic/coarse-grained (Dissipative Particle Dynamics) Molecular Dynamics for polymeric and colloidal systems.

Qualifications

  • Doctor of Philosophy, The University of Queensland

Publications

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Supervision

  • Doctor Philosophy

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Available Projects

  • Surface weathering of Fe-rich primary minerals results in the release of free iron and other soluble minerals into the pore water. Adsorption and precipitation of these minerals onto the primary mineral surfaces lead to the formation of complex ferric polymer films, which gradually develop into an interconnected porosity network. These amorphous films, existing as oxides and (oxy)hydroxides of poly-mineral, were formed through the hydrolysis and poly-mineral cross-linking reactions. The ferric coating is also associated with phyllosilicates and organic carbons, thereby completely changing the reactivity of the host mineral grains. Despite their ubiquitous in many natural soil systems, this formation of complex ferric coating on mineral surface is not well understood, especially under hostile conditions like mine tailing deposits.

    This research will focus on identifying the structure of ferric oxides/(oxy)hydroxides coating and their sorptive interactions at the mineral-water interface under extreme acidic/alkaline environments. The underlying physics and chemistry of adsorption phenomena will then be described and used in mechanistic surface complexation models.

View all Available Projects

Publications

Journal Article

Conference Publication

Other Outputs

Grants (Administered at UQ)

PhD and MPhil Supervision

Current Supervision

  • Doctor Philosophy — Associate Advisor

    Other advisors:

Possible Research Projects

Note for students: The possible research projects listed on this page may not be comprehensive or up to date. Always feel free to contact the staff for more information, and also with your own research ideas.

  • Surface weathering of Fe-rich primary minerals results in the release of free iron and other soluble minerals into the pore water. Adsorption and precipitation of these minerals onto the primary mineral surfaces lead to the formation of complex ferric polymer films, which gradually develop into an interconnected porosity network. These amorphous films, existing as oxides and (oxy)hydroxides of poly-mineral, were formed through the hydrolysis and poly-mineral cross-linking reactions. The ferric coating is also associated with phyllosilicates and organic carbons, thereby completely changing the reactivity of the host mineral grains. Despite their ubiquitous in many natural soil systems, this formation of complex ferric coating on mineral surface is not well understood, especially under hostile conditions like mine tailing deposits.

    This research will focus on identifying the structure of ferric oxides/(oxy)hydroxides coating and their sorptive interactions at the mineral-water interface under extreme acidic/alkaline environments. The underlying physics and chemistry of adsorption phenomena will then be described and used in mechanistic surface complexation models.