Evaluation of the Adsorptive Process on Adsorbent Surfaces as a Function of Pressure in an Isosteric System Compared with Adsorption Isotherm
The developing significance of adsorption has brought about a steadily expanding quantity of logical and innovative writing on different adsorbents. This paper intends to propose experimental and computational methods for measuring the strength of adsorbate–solid interactions. It primarily focuses o...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-07-01
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| Series: | ChemEngineering |
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| Online Access: | https://www.mdpi.com/2305-7084/6/4/52 |
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| author | Sindisiwe Ntsondwa Velaphi Msomi Moses Basitere |
| author_facet | Sindisiwe Ntsondwa Velaphi Msomi Moses Basitere |
| author_sort | Sindisiwe Ntsondwa |
| collection | DOAJ |
| description | The developing significance of adsorption has brought about a steadily expanding quantity of logical and innovative writing on different adsorbents. This paper intends to propose experimental and computational methods for measuring the strength of adsorbate–solid interactions. It primarily focuses on the use of graphs to measure the effectiveness of an adsorbate’s bonds with the solid adsorbent by determining the isosteric heat. The Clausius–Clapeyron model equation is used to determine the isosteric enthalpy of adsorption from two adsorption isotherms at various but close temperatures, with Δ<i>T</i> of 10 °C. A full computational explanation of the Clausius–Clapeyron model equation for determining Δ<i>H<sub>ads</sub></i> is provided using experimental data. Logarithmic plots of uptakes vs. p in the low-pressure zone for the Freundlich–Langmuir graph are used to assess and confirm the quality of the crucial underlying isotherms. The isosteric heat was found to be between 13.5 kJ/mol and 16 kJ/mol. |
| first_indexed | 2024-03-09T04:36:20Z |
| format | Article |
| id | doaj.art-e71445ed754a418ca53d94dd9f789cd9 |
| institution | Directory Open Access Journal |
| issn | 2305-7084 |
| language | English |
| last_indexed | 2024-03-09T04:36:20Z |
| publishDate | 2022-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | ChemEngineering |
| spelling | doaj.art-e71445ed754a418ca53d94dd9f789cd92023-12-03T13:27:32ZengMDPI AGChemEngineering2305-70842022-07-01645210.3390/chemengineering6040052Evaluation of the Adsorptive Process on Adsorbent Surfaces as a Function of Pressure in an Isosteric System Compared with Adsorption IsothermSindisiwe Ntsondwa0Velaphi Msomi1Moses Basitere2Bioresource Engineering Research Group (BioERG), Department of Chemical Engineering, Cape Peninsula University of Technology, P.O. Box 652, Cape Town 8000, South AfricaDepartment of Mechanical Engineering, Cape Peninsula University of Technology, P.O. Box 652, Cape Town 8000, South AfricaAcademic Support Program for Engineering in Cape Town, Centre for Higher Education Development, University of Cape Town, Private Bag X3, Rondebosch, Cape Town 7700, South AfricaThe developing significance of adsorption has brought about a steadily expanding quantity of logical and innovative writing on different adsorbents. This paper intends to propose experimental and computational methods for measuring the strength of adsorbate–solid interactions. It primarily focuses on the use of graphs to measure the effectiveness of an adsorbate’s bonds with the solid adsorbent by determining the isosteric heat. The Clausius–Clapeyron model equation is used to determine the isosteric enthalpy of adsorption from two adsorption isotherms at various but close temperatures, with Δ<i>T</i> of 10 °C. A full computational explanation of the Clausius–Clapeyron model equation for determining Δ<i>H<sub>ads</sub></i> is provided using experimental data. Logarithmic plots of uptakes vs. p in the low-pressure zone for the Freundlich–Langmuir graph are used to assess and confirm the quality of the crucial underlying isotherms. The isosteric heat was found to be between 13.5 kJ/mol and 16 kJ/mol.https://www.mdpi.com/2305-7084/6/4/52adsorption equilibriumClausius–Clapeyronisosteric heatadsorption dynamicsgas adsorption |
| spellingShingle | Sindisiwe Ntsondwa Velaphi Msomi Moses Basitere Evaluation of the Adsorptive Process on Adsorbent Surfaces as a Function of Pressure in an Isosteric System Compared with Adsorption Isotherm ChemEngineering adsorption equilibrium Clausius–Clapeyron isosteric heat adsorption dynamics gas adsorption |
| title | Evaluation of the Adsorptive Process on Adsorbent Surfaces as a Function of Pressure in an Isosteric System Compared with Adsorption Isotherm |
| title_full | Evaluation of the Adsorptive Process on Adsorbent Surfaces as a Function of Pressure in an Isosteric System Compared with Adsorption Isotherm |
| title_fullStr | Evaluation of the Adsorptive Process on Adsorbent Surfaces as a Function of Pressure in an Isosteric System Compared with Adsorption Isotherm |
| title_full_unstemmed | Evaluation of the Adsorptive Process on Adsorbent Surfaces as a Function of Pressure in an Isosteric System Compared with Adsorption Isotherm |
| title_short | Evaluation of the Adsorptive Process on Adsorbent Surfaces as a Function of Pressure in an Isosteric System Compared with Adsorption Isotherm |
| title_sort | evaluation of the adsorptive process on adsorbent surfaces as a function of pressure in an isosteric system compared with adsorption isotherm |
| topic | adsorption equilibrium Clausius–Clapeyron isosteric heat adsorption dynamics gas adsorption |
| url | https://www.mdpi.com/2305-7084/6/4/52 |
| work_keys_str_mv | AT sindisiwentsondwa evaluationoftheadsorptiveprocessonadsorbentsurfacesasafunctionofpressureinanisostericsystemcomparedwithadsorptionisotherm AT velaphimsomi evaluationoftheadsorptiveprocessonadsorbentsurfacesasafunctionofpressureinanisostericsystemcomparedwithadsorptionisotherm AT mosesbasitere evaluationoftheadsorptiveprocessonadsorbentsurfacesasafunctionofpressureinanisostericsystemcomparedwithadsorptionisotherm |