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Nawaz S, Salman SM, Ali A, Ali B, Shah SN, Rahman LU. Kinetics and thermodynamics investigations of efficient and eco-friendly removal of alizarin red S from water via acid-activated Dalbergia sissoo leaf powder and its magnetic iron oxide nanocomposite. Front Chem 2024; 12:1457265. [PMID: 39385963 PMCID: PMC11462623 DOI: 10.3389/fchem.2024.1457265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2024] [Accepted: 08/30/2024] [Indexed: 10/12/2024] Open
Abstract
The present work aimed to highlight an efficient, readily accessible, and cost-effective adsorbent derived from Dalbergia sissoo (DS) leaf powder for removing the environmentally hazardous dye "alizarin red S" (ARS) from hydrous medium. A variant of the adsorbent is activated via sulfuric acid and composited with magnetic iron oxide nanoparticles (DSMNC). Both adsorbents are thoroughly characterized using techniques such as Fourier transform infrared spectroscopy, point of zero charge, energy-dispersive X-ray spectroscopy, and scanning electron microscopy, which show that they have a porous structure rich in active sites. Different adsorption conditions are optimized with the maximum removal efficiency of 76.63% for DS and 97.89% for DSMNC. The study was highlighted via the application of various adsorption isotherms, including Freundlich, Langmuir, Temkin, and Dubinin-Radushkevich, to adsorption data. Pseudo-first-order, pseudo-second-order, and intra-particle diffusion models were utilized to investigate the kinetics and mechanism of adsorption. The Freundlich model and pseudo-second-order kinetics exhibited the best fit, suggesting a combination of physical interactions, as confirmed by the D-R and Temkin models. The dominant adsorbate-adsorbent interactive interactions responsible for ARS removal were hydrogen bonding, dispersion forces, and noncovalent aromatic ring adsorbent pi-interactions. Thermodynamic parameters extracted from adsorption data indicated that the removal of the mutagenic dye "ARS" was exothermic and spontaneous on both DS and DSMNC, with DSMNC exhibiting higher removal efficiency.
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Affiliation(s)
- Saleem Nawaz
- Department of Chemistry, Islamia College Peshawar, Peshawar, Pakistan
| | | | - Asad Ali
- Energy Engineering, Division of Energy Science, Lulea University of Technology, Lulea, Sweden
| | - Basit Ali
- Department of Chemistry, Islamia College Peshawar, Peshawar, Pakistan
| | - Syed Nusrat Shah
- Department of Chemistry, Islamia College Peshawar, Peshawar, Pakistan
| | - Latif Ur Rahman
- Institute of Chemical Sciences, University of Peshawar, Peshawar, Pakistan
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Al-Wasidi AS, El-Feky HH, Shah RK, Saad FA, Abdelrahman EA. Simplified synthesis and identification of novel nanostructures consisting of cobalt borate and cobalt oxide for crystal violet dye removal from aquatic environments. Sci Rep 2024; 14:21631. [PMID: 39284822 PMCID: PMC11405839 DOI: 10.1038/s41598-024-71981-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2024] [Accepted: 09/02/2024] [Indexed: 09/22/2024] Open
Abstract
Crystal violet dye poses significant health risks to humans, including carcinogenic and mutagenic effects, as well as environmental hazards due to its persistence and toxicity in aquatic ecosystems. This study focuses on the efficient removal of crystal violet dye from aqueous media using novel Co3O4/Co3(BO3)2 nanostructures synthesized via the Pechini sol-gel approach. The nanostructures, which were abbreviated to EN600 and EN800, were fabricated at calcination temperatures of 600 and 800 °C, respectively. X-ray diffraction (XRD) analysis revealed that the synthesized samples have a cubic Co3O4 phase and an orthorhombic Co3(BO3)2 phase, with mean crystal sizes of 43.82 nm and 52.93 nm for EN600 and EN800 samples, respectively. The Brunauer-Emmett-Teller (BET) surface areas of EN600 and EN800 samples were 65.80 and 43.76 m2/g, respectively, indicating a significant surface area available for adsorption. Optimal removal of crystal violet dye was achieved at a temperature of 298 K, a contact time of 70 min, and a pH of 10. The maximum adsorption capacities were found to be 284.09 mg/g for EN600 and 256.41 mg/g for EN800, which are notably higher compared to many conventional adsorbents. The adsorption process followed the pseudo-second-order kinetic model and fitted well with the Langmuir isotherm. The adsorption was exothermic, spontaneous, and physical in nature. Moreover, the adsorbents exhibited excellent reusability, retaining high efficiency after multiple regeneration cycles using 6 mol/L hydrochloric acid. These findings highlight the potential of these Co3O4/Co3(BO3)2 nanostructures as effective and sustainable materials for water purification applications.
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Affiliation(s)
- Asma S Al-Wasidi
- Department of Chemistry, College of Science, Princess Nourah Bint Abdulrahman University, 11671, Riyadh, Saudi Arabia
| | - Hesham H El-Feky
- Chemistry Department, Faculty of Science, Benha University, Benha, 13518, Egypt.
| | - Reem K Shah
- Department of Chemistry, Faculty of Science, Umm Al-Qura University, 21955, Makkah, Saudi Arabia
| | - Fawaz A Saad
- Department of Chemistry, Faculty of Science, Umm Al-Qura University, 21955, Makkah, Saudi Arabia
| | - Ehab A Abdelrahman
- Chemistry Department, Faculty of Science, Benha University, Benha, 13518, Egypt.
- Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), 11623, Riyadh, Saudi Arabia.
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Kyomuhimbo HD, McHunu W, Arnold M, Feleni U, Haneklaus NH, Brink HG. Synthesis and Dye Adsorption Dynamics of Chitosan-Polyvinylpolypyrrolidone (PVPP) Composite. Polymers (Basel) 2024; 16:2555. [PMID: 39339020 PMCID: PMC11434811 DOI: 10.3390/polym16182555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2024] [Revised: 09/04/2024] [Accepted: 09/07/2024] [Indexed: 09/30/2024] Open
Abstract
One major environmental issue responsible for water pollution is the presence of dyes in the aquatic environment as a result of human activity, particularly the textile industry. Chitosan-Polyvinylpolypyrrolidone (PVPP) polymer composite beads were synthesized and explored for the adsorption of dyes (Bismarck brown (BB), orange G (OG), brilliant blue G (BBG), and indigo carmine (IC)) from dye solution. The CS-PVPP beads demonstrated high removal efficiency of BB (87%), OG (58%), BBG (42%), and IC (49%). The beads demonstrated a reasonable surface area of 2.203 m2/g and were negatively charged in the applicable operating pH ranges. TGA analysis showed that the polymer composite can withstand decomposition up to 400 °C, proving high stability in harsh conditions. FTIR analysis highlighted the presence of N-H amine, O-H alcohol, and S=O sulfo groups responsible for electrostatic interaction and hydrogen bonding with the dye molecules. A shift in the FTIR bands was observed on N-H and C-N stretching for the beads after dye adsorption, implying that adsorption was facilitated by hydrogen bonding and Van der Waals forces of attraction between the hydroxyl, amine, and carbonyl groups on the surface of the beads and the dye molecules. An increase in pH increased the adsorption capacity of the beads for BB while decreasing OG, BBG, and IC due to their cationic and anionic nature, respectively. While an increase in temperature did not affect the adsorption capacity of OG and BBG, it significantly improved the removal of BB and IC from the dye solution and the adsorption was thermodynamically favoured, as demonstrated by the negative Gibbs free energy at all temperatures. Adsorption of dye mixtures followed the characteristic adsorption nature of the individual dyes. The beads show great potential for applications in the treatment of dye wastewater.
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Affiliation(s)
- Hilda Dinah Kyomuhimbo
- Department of Chemical Engineering, University of Pretoria, Pretoria 0028, South Africa; (H.D.K.); (W.M.); (M.A.)
| | - Wandile McHunu
- Department of Chemical Engineering, University of Pretoria, Pretoria 0028, South Africa; (H.D.K.); (W.M.); (M.A.)
| | - Marco Arnold
- Department of Chemical Engineering, University of Pretoria, Pretoria 0028, South Africa; (H.D.K.); (W.M.); (M.A.)
| | - Usisipho Feleni
- Institute for Nanotechnology and Water Sustainability (iNanoWS), College of Science, Engineering and Technology, University of South Africa, Johannesburg 1709, South Africa;
| | - Nils H. Haneklaus
- Td Lab Sustainable Mineral Resources, University for Continuing Education Krems, 3500 Krems an der Donau, Austria
| | - Hendrik Gideon Brink
- Department of Chemical Engineering, University of Pretoria, Pretoria 0028, South Africa; (H.D.K.); (W.M.); (M.A.)
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Li J, Zhang Q, Chen B, Li F, Pang C. Cellulose-citric acid-chitosan@metal sulfide nanocomposites: Methyl orange dye removal and antibacterial activity. Int J Biol Macromol 2024; 276:133795. [PMID: 38992532 DOI: 10.1016/j.ijbiomac.2024.133795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2024] [Revised: 05/09/2024] [Accepted: 07/08/2024] [Indexed: 07/13/2024]
Abstract
In this study, to develop efficient adsorbents in removing water pollution, new cellulose-citric acid-chitosan@metal sulfide nanocomposites (CL-CA-CS@NiS and CL-CA-CS@CuS) were synthesized by one-pot reaction at mild conditions and characterized using X-ray powder diffraction (XRD), thermogravimetric analysis (TGA), scanning electron microscope (SEM), Energy Dispersive X-ray (EDX) and Brunauer-Emmett-Teller (BET) isotherm. The results of characterization techniques confirm that the desired compounds have been successfully synthesized. The as-prepared composites were applied for the removal of methyl orange (MO) dye from aqueous solutions using a batch technique, and the effect of key factors such as initial pH, shaking time, MO concentration, temperature and adsorbent dose were investigated and discussed. Adsorption results exhibited positive impact of temperature, shaking time and adsorbent dose on the MO removal percent. The MO removal percent has been increased over a wide range of pH from 2 (27.6 %) to 6 (98.8 %). Also, almost being constant over a wide range of MO concentration (10-70 mg/L). The results demonstrated that the maximum removal percentage of MO dye (98.9 % and 93.4 % using CL-CA-CS@NiS and CL-CA-CS@CuS, respectively) was achieved under the conditions of pH 6, shaking time of 120 min, adsorbent dose of 0.02 g, MO concentration of 70 mg/L and temperature of 35 °C. The pseudo-second-order (PSO) and Langmuir models demonstrated the best fit to the kinetic and equilibrium data. Also, the thermodynamic results showed that the MO removal process is endothermic and spontaneous in nature. The MO adsorption can be happened by different electrostatic attraction, n-π and π-π stacking and also hydrogen bonding interaction. In addition, antibacterial activity of CL-CA-CS@NiS and CL-CA-CS@CuS nanocomposites exhibited a superior efficiency against S. aureus.
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Affiliation(s)
- Jie Li
- School of Chemistry & Chemical Engineering, Zhoukou Normal University, Zhoukou 466001, China
| | - Qian Zhang
- School of Chemistry& Chemical Engineering, China West Normal University, Nanchong 637001, China.
| | - Bowen Chen
- School of Chemistry& Chemical Engineering, China West Normal University, Nanchong 637001, China
| | - Fei Li
- School of Chemistry & Chemical Engineering, Zhoukou Normal University, Zhoukou 466001, China
| | - Chunxia Pang
- College of Biological Engineering, Sichuan University of Science & Engineering, Zigong 643000, China
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Khan M, Elboughdiri N, Shanableh A, Manzoor A, Manzoor S, Farooq N, Suleman J, Sarwar H, Benaissa M, Benguerba Y. Adsorption of Eosin B from Wastewater onto the Prepared Porous Anion Exchange Membrane. ACS OMEGA 2024; 9:2422-2431. [PMID: 38250400 PMCID: PMC10795118 DOI: 10.1021/acsomega.3c06827] [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: 09/08/2023] [Revised: 12/02/2023] [Accepted: 12/07/2023] [Indexed: 01/23/2024]
Abstract
This research describes the fabrication of the porous trimethylamine (TMA)-grafted anion exchange membrane (AEM) over a phase inversion process. The synthesis of the generated AEM was verified using Fourier transform infrared (FTIR) spectroscopy. The fabricated porous AEM showed 240% water uptake (WR), 1.45 mg/g ion exchange capacity (IEC), and a 9.0% linear expansion ratio (LER) at 25 °C. It exhibited a porous structure and higher thermal stability. It was utilized to remove eosin B (EB) from wastewater via the process of adsorption. The adsorption capacity of EB increased with time and the starting concentration of EB while decreasing with temperature and the AEM dosage. Adsorption isotherm investigation results showed that EB adsorption onto the porous AEM followed the Langmuir isotherm because the value of correlation coefficient (R2 = 0.992) was close to unity. Because the correlation coefficient was close to one, it was determined through adsorption kinetic experiments that the adsorption of EB on the produced porous AEM was suitable for a pseudo-second-order model. Thermodynamic study about process of EB adsorption on the porous AEM revealed that there was an exothermic (ΔH° = -16.60 kJ/mol) and spontaneous process.
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Affiliation(s)
- Muhammad
Imran Khan
- Research
Institute of Sciences and Engineering (RISE), University of Sharjah, Sharjah 27272, United Arab
Emirates
| | - Noureddine Elboughdiri
- Chemical
Engineering Department, College of Engineering, University of Ha’il, P.O. Box 2440, Ha’il 81441, Saudi Arabia
- Chemical
Engineering Process Department, National School of Engineers Gabes, University of Gabes, Gabes 6029, Tunisia
| | - Abdallah Shanableh
- Research
Institute of Sciences and Engineering (RISE), University of Sharjah, Sharjah 27272, United Arab
Emirates
| | - Asma Manzoor
- Department
of Chemistry, The Government Sadiq College
Women University, Bahawalpur 63100, Pakistan
| | - Suryyia Manzoor
- Institute
of Chemical Sciences, Bahauddin Zakariya
University, Multan 60000, Pakistan
| | - Nosheen Farooq
- Department
of Chemistry, The Government Sadiq College
Women University, Bahawalpur 63100, Pakistan
| | - Jannat Suleman
- Department
of Chemistry, The Women University Multan, Multan 60000, Pakistan
| | - Hadia Sarwar
- Department
of Chemistry, The Government Sadiq College
Women University, Bahawalpur 63100, Pakistan
| | - Mhamed Benaissa
- Chemical
Engineering Department, College of Engineering, University of Ha’il, P.O. Box 2440, Ha’il 81441, Saudi Arabia
| | - Yacine Benguerba
- Chemical
Engineering Department, College of Engineering, University of Ha’il, P.O. Box 2440, Ha’il 81441, Saudi Arabia
- Laboratoire
de Biopharmacie Et Pharmacotechnie (LBPT), Université Ferhat ABBAS Sétif-1, Sétif 19000, Algeria
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