Adsorption and Dissolution of Carbonate Minerals
Lead Research Organisation:
University of Cambridge
Department Name: Chemistry
Abstract
This project will study the adsorption of species to the surface of calcite and related minerals. The adsorption will be from water and non-aqueous systems and cover a range of polar additives. The use of powdered and single crystal species will be used and the location of the adsorbed species will be addressed. We also aim to consider the temperature dependence of the adsorption/desorption and how any adsorbed layer might change/reduce the dissolution of the carbonate solids. The work will be experimental using lab-based depletion isotherms and neutron reflection at international facilities.
People |
ORCID iD |
| Stuart Clarke (Primary Supervisor) | |
| Lana Farren (Student) |
Studentship Projects
| Project Reference | Relationship | Related To | Start | End | Student Name |
|---|---|---|---|---|---|
| EP/R511870/1 | 01/10/2017 | 30/09/2023 | |||
| 2275904 | Studentship | EP/R511870/1 | 01/10/2019 | 30/09/2023 | Lana Farren |
| Description | It is known that some molecules can associate with each other through hydrogen bonding, the extent of these associations (between two, three or four molecules) differ depending on the solute and solvent used and are most reported for carboxylic acids in benzene or water (acetic acid). This work investigated the association of solutes with low water solubility in toluene and characterised these self-associations in "dry" solvent (low water content) and "wet" solvent (solvent saturated with water). These associations can significantly effect the amount of additive adsorbed onto substrates as it is the monomer (non-associated molecule) concentration that drives adsorption. |
| Exploitation Route | Self-association occurs with many molecules including surfactants, alcohols and amines as well as carboxylic acids, hence it should be considered in any adsorption study. This could potentially reduce the amount of additive needed to be effective in several areas both academic and industrial. Including fertilisation, water conservation products, paper coating, paint additives, corrosion studies or oil recovery. |
| Sectors | Aerospace, Defence and Marine,Agriculture, Food and Drink,Chemicals,Construction,Education,Energy,Environment,Manufacturing, including Industrial Biotechology,Pharmaceuticals and Medical Biotechnology |
| Description | Self-Association and Additive Water Association in Hydrocarbon Solvents |
| Organisation | Queen Mary University of London |
| Country | United Kingdom |
| Sector | Academic/University |
| PI Contribution | Bulk Solution thermodynamic data collection and analysis of self-associating solutes and additive-water association effects from hydrocarbon solvents. |
| Collaborator Contribution | Theoretical self-association and additive-water association in bulk solution and the gas phase. |
| Impact | paper is being written but not yet published. |
| Start Year | 2021 |