1
|
Hira NE, Lock SSM, Arshad U, Asif K, Ullah F, Farooqi AS, Yiin CL, Chin BLF, Huma ZE. Screening of Metal Oxides and Hydroxides for Arsenic Removal from Water Using Molecular Dynamics Simulations. ACS OMEGA 2023; 8:48130-48144. [PMID: 38144150 PMCID: PMC10734295 DOI: 10.1021/acsomega.3c07014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 11/09/2023] [Accepted: 11/24/2023] [Indexed: 12/26/2023]
Abstract
Arsenic in groundwater is a harmful and hazardous substance that must be removed to protect human health and safety. Adsorption, particularly using metal oxides, is a cost-effective way to treat contaminated water. These metal oxides must be selected systematically to identify the best material and optimal operating conditions for the removal of arsenic from water. Experimental research has been the primary emphasis of prior work, which is time-consuming and costly. The previous simulation studies have been limited to specific adsorbents such as iron oxides. It is necessary to study other metal oxides to determine which ones are the most effective at removing arsenic from water. In this work, a molecular simulation computational framework using molecular dynamics and Monte Carlo simulations was developed to investigate the adsorption of arsenic using various potential metal oxides. The molecular structures have been optimized and proceeded with sorption calculations to observe the adsorption capabilities of metal oxides. In this study, 15 selected metal oxides were screened at a pressure of 100 kPa and a temperature of 298 K for As(V) in the form of HAsO4 at pH 7. Based on adsorption capacity calculations for selected metal oxides/hydroxides, aluminum hydroxide (Al(OH)3), ferric hydroxide (FeOOH), lanthanum hydroxide La(OH)3, and stannic oxide (SnO2) were the most effective adsorbents with adsorption capacities of 197, 73.6, 151, and 42.7 mg/g, respectively, suggesting that metal hydroxides are more effective in treating arsenic-contaminated water than metal oxides. The computational results were comparable with previously published literature with a percentage error of 1%. Additionally, SnO2, which is rather unconventional to be used in this application, demonstrates potential for arsenic removal and could be further explored. The effects of pH from 1 to 13, temperature from 281.15 to 331.15 K, and pressure from 100 to 350 kPa were studied. Results revealed that adsorption capacity decreased for the high-temperature applications while experiencing an increase in pressure-promoted adsorption. Furthermore, response surface methodology (RSM) has been employed to develop a regression model to describe the effect of operating variables on the adsorption capacity of screened adsorbents for arsenic removal. The RSM models utilizing CCD (central composite design) were developed for Al(OH)3, La(OH)3, and FeOOH, having R2 values 0.92, 0.67, and 0.95, respectively, suggesting that the models developed were correct.
Collapse
Affiliation(s)
- Noor E. Hira
- CO2
Research Centre (CO2RES), Universiti Teknologi
PETRONAS, 32610 Seri Iskandar, Perak, Malaysia
- Department
of Chemical Engineering, Universiti Teknologi
PETRONAS, 32610 Seri Iskandar, Perak, Malaysia
| | - Serene Sow Mun Lock
- CO2
Research Centre (CO2RES), Universiti Teknologi
PETRONAS, 32610 Seri Iskandar, Perak, Malaysia
- Department
of Chemical Engineering, Universiti Teknologi
PETRONAS, 32610 Seri Iskandar, Perak, Malaysia
| | - Ushtar Arshad
- CO2
Research Centre (CO2RES), Universiti Teknologi
PETRONAS, 32610 Seri Iskandar, Perak, Malaysia
- Department
of Chemical Engineering, Universiti Teknologi
PETRONAS, 32610 Seri Iskandar, Perak, Malaysia
| | - Khadija Asif
- CO2
Research Centre (CO2RES), Universiti Teknologi
PETRONAS, 32610 Seri Iskandar, Perak, Malaysia
- Department
of Chemical Engineering, Universiti Teknologi
PETRONAS, 32610 Seri Iskandar, Perak, Malaysia
| | - Farman Ullah
- Centre
of Innovative Nanostructures & Nanodevices, Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak, Malaysia
| | - Abid Salam Farooqi
- CO2
Research Centre (CO2RES), Universiti Teknologi
PETRONAS, 32610 Seri Iskandar, Perak, Malaysia
- Centre
of Innovative Nanostructures & Nanodevices, Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak, Malaysia
| | - Chung Loong Yiin
- Department
of Chemical Engineering and Energy Sustainability, Faculty of Engineering, Universiti Malaysia Sarawak (UNIMAS), 94300 Kota Samarahan, Sarawak, Malaysia
- Institute of Sustainable and Renewable Energy (ISuRE), Universiti
Malaysia Sarawak (UNIMAS), 94300 Kota Samarahan, Sarawak, Malaysia
| | - Bridgid Lai Fui Chin
- Department
of Chemical and Energy Engineering, Faculty of Engineering and Science, Curtin University Malaysia, CDT 250, 98009 Miri, Sarawak, Malaysia
- Energy
and Environment Research Cluster, Faculty of Engineering and Science, Curtin University Malaysia, CDT 250, 98009 Miri, Sarawak, Malaysia
| | - Zill e Huma
- University
of the Punjab, Canal Rd, Quaid-i-Azam Campus, Lahore 54590, Punjab, Pakistan
| |
Collapse
|
2
|
Rahman N, Ahmad I. Insights into the statistical physics modeling and fractal like kinetic approach for the adsorption of As(III) on coordination polymer gel based on zirconium(IV) and 2-thiobarbituric acid. JOURNAL OF HAZARDOUS MATERIALS 2023; 457:131783. [PMID: 37327609 DOI: 10.1016/j.jhazmat.2023.131783] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 05/13/2023] [Accepted: 06/03/2023] [Indexed: 06/18/2023]
Abstract
A novel coordination polymer gel based on zirconium(IV) and 2-thiobarbituric (ZrTBA) was synthesized and explored its potential to remediate As(III) from water. Box-Behnken design with desirability function and genetic algorithm yielded the optimized conditions (initial concentration=194 mg L-1, dosage = 42.2 mg, time= 95 min and pH = 4.9) for maximum removal efficiency (99.19 %). The experimental saturation capacity for As(III) was 178.30 mg g-1. The steric parameter n > 1 of the best fitted statistical physics model: monolayer with two energies (R2 = 0.987-0.992) suggested multimolecular mechanism with vertical orientation of As(III) molecules onto the two active sites. XPS and FTIR confirmed the two active sites being zirconium and oxygen. The adsorption energies (E1 = 35.81-37.63 kJ/mol; E2 = 29.50-36.49 kJ/mol) and isosteric heat of adsorption indicated that physical forces governed the As(III) uptake. DFT calculations implied that the weak electrostatic interaction and hydrogen bonding were involved. The best fitted (R2>0.99) fractal like pseudo first order model established energetic heterogeneity. ZrTBA showed excellent removal efficiency in the presence of potential interfering ions and could be used up to 5 cycles of adsorption-desorption with < 8 % loss in the efficiency. ZrTBA removed ≥96.06 % As(III) from real water samples spiked at different levels of As(III).
Collapse
Affiliation(s)
- Nafisur Rahman
- Department of Chemistry, Aligarh Muslim University, Aligarh 202002, India.
| | - Izhar Ahmad
- Department of Chemistry, Aligarh Muslim University, Aligarh 202002, India
| |
Collapse
|
3
|
Samimi M, Zakeri M, Alobaid F, Aghel B. A Brief Review of Recent Results in Arsenic Adsorption Process from Aquatic Environments by Metal-Organic Frameworks: Classification Based on Kinetics, Isotherms and Thermodynamics Behaviors. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 13:nano13010060. [PMID: 36615970 PMCID: PMC9823661 DOI: 10.3390/nano13010060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/14/2022] [Accepted: 12/20/2022] [Indexed: 05/25/2023]
Abstract
In nature, arsenic, a metalloid found in soil, is one of the most dangerous elements that can be combined with heavy metals. Industrial wastewater containing heavy metals is considered one of the most dangerous environmental pollutants, especially for microorganisms and human health. An overabundance of heavy metals primarily leads to disturbances in the fundamental reactions and synthesis of essential macromolecules in living organisms. Among these contaminants, the presence of arsenic in the aquatic environment has always been a global concern. As (V) and As (III) are the two most common oxidation states of inorganic arsenic ions. This research concentrates on the kinetics, isotherms, and thermodynamics of metal-organic frameworks (MOFs), which have been applied for arsenic ions uptake from aqueous solutions. This review provides an overview of the current capabilities and properties of MOFs used for arsenic removal, focusing on its kinetics and isotherms of adsorption, as well as its thermodynamic behavior in water and wastewater.
Collapse
Affiliation(s)
- Mohsen Samimi
- Department of Chemical Engineering, Faculty of Engineering, Kermanshah University of Technology, Kermanshah 6715685420, Iran
| | - Mozhgan Zakeri
- Department of Chemical Engineering, Faculty of Engineering, University of Sistan and Baluchestan, Zahedan 9816745639, Iran
| | - Falah Alobaid
- Institut Energiesysteme und Energietechnik, Technische Universität Darmstadt, Otto-Berndt-Straße 2, 64287 Darmstadt, Germany
| | - Babak Aghel
- Department of Chemical Engineering, Faculty of Engineering, Kermanshah University of Technology, Kermanshah 6715685420, Iran
- Institut Energiesysteme und Energietechnik, Technische Universität Darmstadt, Otto-Berndt-Straße 2, 64287 Darmstadt, Germany
| |
Collapse
|