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Atieh MA, Shah M, Hakam A, Alghafri M, Tawse-Smith A, Alsabeeha N. Systemic azithromycin versus amoxicillin/metronidazole as an adjunct in the treatment of periodontitis: a systematic review and meta-analysis. Aust Dent J 2024; 69:4-17. [PMID: 37875345 DOI: 10.1111/adj.12991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/09/2023] [Indexed: 10/26/2023]
Abstract
BACKGROUND The use of systemic azithromycin (AZT) and amoxicillin/metronidazole (AMX/MTZ) as adjuncts provided additional clinical and microbiological benefits over subgingival instrumentation alone. However, the superiority of one antibiotic regimen over another has not been proven. Therefore, the aim of this systematic review and meta-analyses was to evaluate the clinical efficacy and safety of subgingival instrumentation (SI) in conjunction with the systemic use of AZT or AMX/MTZ for the treatment of periodontitis from current published literature. METHODS Electronic databases were searched to identify randomized controlled trials (RCTs), controlled clinical trials, prospective and retrospective human studies that compared the adjunctive use of systemic AZT to AMX/MTZ with SI in the treatment of periodontitis. The eligibility criteria were defined based on the participant (who had periodontitis), intervention (SI with adjunctive use of systemic AZT), comparison (SI with adjunctive use of systemic AMX/MTZ), outcomes (primary outcome: changes in probing pocket). The risk of bias was assessed using the Cochrane Collaboration's Risk of Bias tool. Data were analysed using a statistical software program. RESULTS Five studies with 151 participants with periodontitis were included in the present review. Of these, 74 participants received adjunctive AZT, while the remaining participants received AMX/MTZ as an adjunct to SI. The adjunctive use of AZT and AMX/MTZ had comparable changes in probing pocket depths at 1-3 months with no statistically significant difference (mean difference (MD) 0.01; 95% CI -0.20 to 0.22; P = 0.94). The adjunctive use of AZT had significantly fewer number of residual sites with probing pocket depths of ≥5 mm at 1-3 months compared to the adjunctive use of AMX/MTZ (MD -3.41; 95% CI -4.73 to -2.10; P < 0.0001). The prevalence rates of adverse events among participants who received AZT and AMX/MTZ were 9.80% and 14.8%, respectively. The meta-analysis showed that the difference between the two groups was not statistically significant (risk ratio 0.69; 95% CI 0.28 to 1.72; P = 0.43). CONCLUSIONS Within the limitation of this review, there was no superiority between AZT and AMX/MTZ in terms of mean changes in probing pocket depths, clinical attachment level, bleeding on probing at 1-3 months. AZT seem to be associated with less sites with residual probing pocket depths of ≥5 mm at 1-3 months and fewer adverse events compared with AMX/MTZ. © 2023 Australian Dental Association.
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Affiliation(s)
- M A Atieh
- Mohammed Bin Rashid University of Medicine and Health Sciences, Hamdan Bin Mohammed College of Dental Medicine, Dubai Healthcare City, Dubai, United Arab Emirates
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
- School of Dentistry, University of Jordan, Amman, Jordan
| | - M Shah
- Mohammed Bin Rashid University of Medicine and Health Sciences, Hamdan Bin Mohammed College of Dental Medicine, Dubai Healthcare City, Dubai, United Arab Emirates
| | - A Hakam
- Mohammed Bin Rashid University of Medicine and Health Sciences, Hamdan Bin Mohammed College of Dental Medicine, Dubai Healthcare City, Dubai, United Arab Emirates
| | - M Alghafri
- Mohammed Bin Rashid University of Medicine and Health Sciences, Hamdan Bin Mohammed College of Dental Medicine, Dubai Healthcare City, Dubai, United Arab Emirates
| | - A Tawse-Smith
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Nhm Alsabeeha
- Department of Dental Services, Emirates Health Services, Dubai, United Arab Emirates
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Atieh MA, Shah M, Hakam A, Alghafri M, Tawse-Smith A, Alsabeeha N. Systemic azithromycin vs. amoxicillin/metronidazole as an adjunct in the treatment of periodontitis: a systematic review and meta-analysis. Aust Dent J 2024; 69:67-68. [PMID: 38344927 DOI: 10.1111/adj.13008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/24/2024] [Indexed: 02/28/2024]
Affiliation(s)
- M A Atieh
- Mohammed Bin Rashid University of Medicine and Health Sciences, Hamdan Bin Mohammed College of Dental Medicine, Dubai Healthcare City, Dubai, United Arab Emirates
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
- School of Dentistry, University of Jordan, Amman, Jordan
| | - M Shah
- Mohammed Bin Rashid University of Medicine and Health Sciences, Hamdan Bin Mohammed College of Dental Medicine, Dubai Healthcare City, Dubai, United Arab Emirates
| | - A Hakam
- Mohammed Bin Rashid University of Medicine and Health Sciences, Hamdan Bin Mohammed College of Dental Medicine, Dubai Healthcare City, Dubai, United Arab Emirates
| | - M Alghafri
- Mohammed Bin Rashid University of Medicine and Health Sciences, Hamdan Bin Mohammed College of Dental Medicine, Dubai Healthcare City, Dubai, United Arab Emirates
| | - A Tawse-Smith
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Nhm Alsabeeha
- Department of Dental Services, Emirates Health Services, Dubai, United Arab Emirates
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Khalil AK, Elgamouz A, Nazir S, Atieh MA, Alawadhi H, Laoui T. Preparation and characterization of clay based ceramic porous membranes and their use for the removal of lead ions from synthetic wastewater with an insight into the removal mechanism. Heliyon 2024; 10:e24939. [PMID: 38317898 PMCID: PMC10838747 DOI: 10.1016/j.heliyon.2024.e24939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 01/11/2024] [Accepted: 01/17/2024] [Indexed: 02/07/2024] Open
Abstract
The present study explores the use of local clay from the United Arab Emirates (UAE) to prepare porous ceramic membranes (flat disk shape) for the purpose of removing toxic heavy metals from contaminated water. Four distinct ceramic membranes, crafted from locally sourced clay and incorporated with activated carbon and graphite, underwent careful and thorough preparation. The initial set of membranes was subjected to open-air sintering, resulting in the creation of mACA and mGrA membranes. Concurrently, a second set of meticulously prepared membranes underwent sintering under inert nitrogen conditions, yielding the formation of mACI and mGrI membranes, respectively. Prior to making the membranes, the clay material was characterized by thermogravimetric analysis (TGA), X-ray fluorescence (XRF), Fourier-transform infrared spectroscopy (FTIR), and X-ray diffraction analysis (XRD). The clay presented the lowest weight loss compared to AC and Gr, implying that these two materials could be used as porogen agents. The X-ray fluorescence results indicated that the natural clay contained 65.5 wt% of silicon dioxide (SiO2), aluminium oxide (Al2O3), and iron (III) oxide (Fe2O3) falling within the class C category of clays according to ASTM. The FTIR analysis showed different clay regions allocated to various stretching and deformation vibrations of hydroxide, organic fraction, and (Si, Al, Fe)-O groups. The XRD analysis revealed the presence of kaolinite, illite, smectite and calcite phyllite phases in the clay mineral. The membranes were characterized using FESEM, with those containing AC (used as porogen) exhibiting large pores clearly visible on the surface, and were tested for the removal of lead (Pb2+) ions from synthetic wastewater. The removal efficiencies of the membranes were 33 %, 75.2 %, 100 % and 100 % for mACA, mACI, mGrA and mGrI respectively after 100 min operation. The wettability of the membranes was found to follow the order mACI < mACA < mGrI < mGrA, which corroborated well with water fluxes of 7, 8, 112 and 214 L h-1 m-2 recorded after 60 min duration and 1.0 bar applied pressure. The mechanisms of filtration of Pb2+ ions were adsorption for the AC-based membranes (mACA, mACI) and a combination of adsorption and size exclusion for the Gr-based membranes (mGrA, mGrI).
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Affiliation(s)
- Abdelrahman K.A. Khalil
- Research Institute of Sciences and Engineering (RISE), University of Sharjah, Sharjah, P.O. Box 27272, United Arab Emirates
| | - Abdelaziz Elgamouz
- Research Institute of Sciences and Engineering (RISE), University of Sharjah, Sharjah, P.O. Box 27272, United Arab Emirates
- Department of Chemistry, College of Sciences, University of Sharjah, Sharjah, P.O. Box 27272, United Arab Emirates
| | - Saad Nazir
- Department of Mechanical and Nuclear Engineering, College of Engineering, University of Sharjah, Sharjah, P.O. Box 27272, United Arab Emirates
| | - Muataz Ali Atieh
- Research Institute of Sciences and Engineering (RISE), University of Sharjah, Sharjah, P.O. Box 27272, United Arab Emirates
- Chemical and Water Desalination Engineering (CWDE) Program, College of Engineering, University of Sharjah, Sharjah, P.O. Box 27272, United Arab Emirates
| | - Hussain Alawadhi
- Research Institute of Sciences and Engineering (RISE), University of Sharjah, Sharjah, P.O. Box 27272, United Arab Emirates
- Department of Applied Physics & Astronomy, University of Sharjah, P.O. Box 27272, Sharjah, United Arab Emirates
| | - Tahar Laoui
- Research Institute of Sciences and Engineering (RISE), University of Sharjah, Sharjah, P.O. Box 27272, United Arab Emirates
- Department of Mechanical and Nuclear Engineering, College of Engineering, University of Sharjah, Sharjah, P.O. Box 27272, United Arab Emirates
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AL-Rajabi MM, Almanassra IW, Khalil AKA, Atieh MA, Laoui T, Khalil KA. Facile Coaxial Electrospinning Synthesis of Polyacrylonitrile/Cellulose Acetate Nanofiber Membrane for Oil-Water Separations. Polymers (Basel) 2023; 15:4594. [PMID: 38232019 PMCID: PMC10708555 DOI: 10.3390/polym15234594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Revised: 11/17/2023] [Accepted: 11/28/2023] [Indexed: 01/19/2024] Open
Abstract
Oil-contaminated water and industrial oily wastewater discharges have adversely affected aquatic ecosystems and human safety. Membrane separation technology offers a promising solution for effective oil-water separation. Thus, a membrane with high surface area, hydrophilic-oleophobic properties, and stability is a promising candidate. Electrospinning, a straightforward and efficient process, produces highly porous polymer-based membranes with a vast surface area and stability. The main objective of this study is to produce hydrophilic-oleophobic polyacrylonitrile (PAN) and cellulose acetate (CA) nanofibers using core-shell electrospinning. Incorporating CA into the shell of the nanofibers enhances the wettability. The core PAN polymer improves the electrospinning process and contributes to the hydrophilicity-oleophobicity of the produced nanofibers. The PAN/CA nanofibers were characterized by Fourier transform infrared spectroscopy, field emission scanning electron microscopy, X-ray diffraction, and surface-wetting behavior. The resulting PAN/cellulose nanofibers exhibited significantly improved surface-wetting properties, demonstrating super-hydrophilicity and underwater superoleophobicity, making them a promising choice for oil-water separation. Various oils, including gasoline, diesel, toluene, xylene, and benzene, were employed in the preparation of oil-water mixture solutions. The utilization of PAN/CA nanofibers as a substrate proved to be highly efficient, confirming exceptional separation efficiency, remarkable stability, and prolonged durability. The current work introduces an innovative single-step fabrication method of composite nanofibers, specially designed for efficient oil-water separation. This technology exhibits significant promise for deployment in challenging situations, offering excellent reusability and a remarkable separation efficiency of nearly 99.9%.
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Affiliation(s)
- Maha Mohammad AL-Rajabi
- Research Institute of Sciences and Engineering, University of Sharjah, Sharjah 27272, United Arab Emirates; (M.M.A.-R.); (I.W.A.); (A.K.A.K.); (M.A.A.); (T.L.)
- Faculty of Chemical Engineering & Technology, Universiti Malaysia Perlis, UniMAP, Arau 02600, Perlis, Malaysia
- Centre of Excellence for Biomass Utilization, Universiti Malaysia Perlis, UniMAP, Arau 02600, Perlis, Malaysia
| | - Ismail W. Almanassra
- Research Institute of Sciences and Engineering, University of Sharjah, Sharjah 27272, United Arab Emirates; (M.M.A.-R.); (I.W.A.); (A.K.A.K.); (M.A.A.); (T.L.)
| | - Abdelrahman K. A. Khalil
- Research Institute of Sciences and Engineering, University of Sharjah, Sharjah 27272, United Arab Emirates; (M.M.A.-R.); (I.W.A.); (A.K.A.K.); (M.A.A.); (T.L.)
| | - Muataz Ali Atieh
- Research Institute of Sciences and Engineering, University of Sharjah, Sharjah 27272, United Arab Emirates; (M.M.A.-R.); (I.W.A.); (A.K.A.K.); (M.A.A.); (T.L.)
- Chemical and Water Desalination Engineering Program, College of Engineering, University of Sharjah, Sharjah 27272, United Arab Emirates
| | - Tahar Laoui
- Research Institute of Sciences and Engineering, University of Sharjah, Sharjah 27272, United Arab Emirates; (M.M.A.-R.); (I.W.A.); (A.K.A.K.); (M.A.A.); (T.L.)
- Department of Mechanical and Nuclear Engineering, College of Engineering, University of Sharjah, Sharjah 27272, United Arab Emirates
| | - Khalil Abdelrazek Khalil
- Research Institute of Sciences and Engineering, University of Sharjah, Sharjah 27272, United Arab Emirates; (M.M.A.-R.); (I.W.A.); (A.K.A.K.); (M.A.A.); (T.L.)
- Department of Mechanical and Nuclear Engineering, College of Engineering, University of Sharjah, Sharjah 27272, United Arab Emirates
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Abushawish A, Chatla A, Almanassra IW, Ihsanullah I, Shanableh A, Laoui T, Atieh MA. Novel composites of activated carbon and layered double oxide for the removal of sulfate from synthetic and brackish groundwater. Chemosphere 2023; 339:139740. [PMID: 37544521 DOI: 10.1016/j.chemosphere.2023.139740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 07/06/2023] [Accepted: 08/03/2023] [Indexed: 08/08/2023]
Abstract
Sulfate (SO42-) is a major water and environmental concern that causes severe diarrhea, death of invertebrates and plant species, and clogging of industrial pipes. In the current work, treatment of SO42- from synthetic and real groundwater having 3901 mg(SO42-)/L was investigated for the first time using Zn-Al and Mg-Al layered double oxides doped granular activated carbon (GAC/Mg-Al LDO and GAC/Zn-Al LDO). The co-precipitation method was followed to synthesize the GAC/LDO composites using an Mg or Zn to Al molar ratio of 3:1. The GAC/Mg-Al LDO possessed a higher specific surface area (323.9 m2/g) compared to GAC/Zn-Al LDO (195.1 m2/g). The GAC/Mg-Al LDO demonstrated more than 99% removal of SO42- from synthetic water, while it was 50.9% for GAC/Zn-Al LDO and less than 1% for raw GAC at an initial concentration of 50 mg/L. The GAC/Mg-Al LDO was selected for further batch experiments and modeling investigation. The equilibrium data followed the Redlich-Peterson and Langmuir models with determination coefficients of 0.943 and 0.935, respectively. The maximum Langmuir adsorption capacity was 143.5 mg/g. In the real groundwater adsorption study, the screening experiment revealed high selectivity towards SO42- with 62% removal efficiency. The optimum dosage was found to be 50 g/L with an uptake capacity of 61.5 mg/g. The kinetic data of SO42- removal from synthetic and brackish water were in excellent agreement with the pseudo-second order model, and the equilibrium was attained in 5 h. Accordingly, it can be concluded that the GAC/Mg-Al LDO is an efficient material for treating SO42- from real groundwater and can be utilized as a pretreatment unit for high sulfate water resources.
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Affiliation(s)
- Alaa Abushawish
- Research Institute of Sciences and Engineering, University of Sharjah, Sharjah, 27272, United Arab Emirates; Department of Civil and Environmental Engineering, University of Sharjah, Sharjah, 27272, United Arab Emirates
| | - Anjaneyulu Chatla
- Research Institute of Sciences and Engineering, University of Sharjah, Sharjah, 27272, United Arab Emirates.
| | - Ismail W Almanassra
- Research Institute of Sciences and Engineering, University of Sharjah, Sharjah, 27272, United Arab Emirates.
| | - I Ihsanullah
- Chemical and Water Desalination Engineering Program, College of Engineering, University of Sharjah, Sharjah, 27272, United Arab Emirates
| | - Abdallah Shanableh
- Research Institute of Sciences and Engineering, University of Sharjah, Sharjah, 27272, United Arab Emirates; Department of Civil and Environmental Engineering, University of Sharjah, Sharjah, 27272, United Arab Emirates
| | - Tahar Laoui
- Research Institute of Sciences and Engineering, University of Sharjah, Sharjah, 27272, United Arab Emirates; Department of Mechanical and Nuclear Engineering, College of Engineering, University of Sharjah, Sharjah, 27272, United Arab Emirates
| | - Muataz Ali Atieh
- Research Institute of Sciences and Engineering, University of Sharjah, Sharjah, 27272, United Arab Emirates; Chemical and Water Desalination Engineering Program, College of Engineering, University of Sharjah, Sharjah, 27272, United Arab Emirates.
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Almanassra IW, Jaber L, Backer SN, Chatla A, Kochkodan V, Al-Ansari T, Shanableh A, Atieh MA. Oxidized carbide-derived carbon as a novel filler for improved antifouling characteristics and permeate flux of hybrid polyethersulfone ultrafiltration membranes. Chemosphere 2023; 313:137425. [PMID: 36460158 DOI: 10.1016/j.chemosphere.2022.137425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 11/18/2022] [Accepted: 11/26/2022] [Indexed: 06/17/2023]
Abstract
Polyethersulfone (PES) is a widely used polymer for ultrafiltration (UF) membrane fabrication. In the current study, carbide-derived carbon (CDC) oxidized by acid treatment was utilized as a filler to fabricate a novel PES composites UF membranes. The successful oxidation of CDC was validated from presence of oxygen containing functional groups and improved oxygen content, from 5.08 at.% for CDC to 26.22 at.% for oxidized CDC (OCDC). The OCDC PES UF membranes were prepared at different loadings of OCDC between 0.5 and 3.0 wt%. The membrane porosity, pore size and surface free energy found to be improved while a noticeable reduction in water contact angle was observed with OCDC loading implying the improved hydrophilicity of PES membranes. Consequently, the pure water flux found to improve from 151.6 to 569.6 (L/(m2. h)) for the 3.0 wt% modified OCDC membrane (M-3) which is 3.8 folds of the bare PES membrane. The antifouling characteristics were evaluated by humic acid (HA) filtration. The results revealed a significant enhancement in HA rejection with OCDC loading, the highest rejection was 96.8% for M-3 membrane. Additionally, the adsorption capacity of OCDC modified membranes found to decrease with OCDC loading indicating improved rejection of HA from the membrane surface. Moreover, M-3 demonstrated the maximum flux recovery ratio (FRR) of 92.3%. Reusability of the fabricated membranes was evaluated by deionized water/humic acid cycling filtration. The FRR was higher than 86.7% over three cycles of pure water/HA filtration for 140 min, indicated the excellent stability and reusability of the membranes. Overall, the OCDC was an effective filler for enhancing the PES UF membranes antifouling and permeability properties.
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Affiliation(s)
- Ismail W Almanassra
- Research Institute of Sciences and Engineering (RISE), University of Sharjah, Sharjah, United Arab Emirates.
| | - Lubna Jaber
- Research Institute of Sciences and Engineering (RISE), University of Sharjah, Sharjah, United Arab Emirates; Department of Chemistry, College of Sciences, University of Sharjah, Sharjah, United Arab Emirates
| | | | - Anjaneyulu Chatla
- Research Institute of Sciences and Engineering (RISE), University of Sharjah, Sharjah, United Arab Emirates
| | - Viktor Kochkodan
- Qatar Environment and Energy Research Institute, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar
| | - Tareq Al-Ansari
- College of Science and Engineering, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar
| | - Abdallah Shanableh
- Research Institute of Sciences and Engineering (RISE), University of Sharjah, Sharjah, United Arab Emirates; Department of Civil and Environmental Engineering, College of Engineering, University of Sharjah, Sharjah, 27272, United Arab Emirates
| | - Muataz Ali Atieh
- Research Institute of Sciences and Engineering (RISE), University of Sharjah, Sharjah, United Arab Emirates; Chemical and Water Desalination Engineering Program, College of Engineering, University of Sharjah, Sharjah, United Arab Emirates.
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Jaber L, Almanassra IW, Backer SN, Kochkodan V, Shanableh A, Atieh MA. A Comparative Analysis of the Effect of Carbonaceous Nanoparticles on the Physicochemical Properties of Hybrid Polyethersulfone Ultrafiltration Membranes. Membranes (Basel) 2022; 12:1143. [PMID: 36422135 PMCID: PMC9695429 DOI: 10.3390/membranes12111143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/28/2022] [Accepted: 11/09/2022] [Indexed: 06/16/2023]
Abstract
Numerous studies have been previously reported on the use of nanoscale carbonaceous fillers, such as multi-walled carbon nanotubes (MWCNTs) and graphene oxide (GO), in polymeric ultrafiltration (UF) membranes; however, no insight has been clearly reported on which material provides the best enhancements in membrane performance. In this study, a comparative analysis was carried out to establish a comprehensible understanding of the physicochemical properties of hybrid polyethersulfone (PES) UF membranes incorporated with MWCNTs and GO nanoparticles at various concentrations. The hybrid membranes were prepared via the non-solvent-induced phase separation process and further characterized by field emission scanning electron microscopy and atomic force microscope (AFM). The AFM images showed homogeneous membrane surfaces with a reduction in the membrane surface roughness from 2.62 nm for bare PES to 2.39 nm for PES/MWCNTs and to 1.68 nm for PES/GO membranes due to improved hydrophilicity of the membranes. Physicochemical properties of the hybrid PES membranes were assessed, and the outcomes showed an enhancement in the porosity, pore size, water contact angle, and water permeability with respect to nanoparticle concentration. GO-incorporated PES membranes exhibited the highest porosity, pore size, and lowest contact angle as compared to PES/MWCNTs, indicating the homogeneous distribution of nanoparticles within the membrane structure. PES/MWCNTs (0.5 wt.%) and PES/GO (1.0 wt.%) hybrid membranes exhibited the highest water flux of 450.0 and 554.8 L m-2 h-1, respectively, at an applied operating pressure of 1 bar. The filtration and antifouling performance of the PES hybrid membranes were evaluated using 50 mg L-1 of humic acid (HA) as a foulant at pH = 7. Compared to the bare PES membrane, the MWCNTs and GO-incorporated PES hybrid membranes exhibited enhanced permeability and HA removal. Moreover, PES/MWCNTs (0.5 wt.%) and PES/GO (1 wt.%) hybrid membranes reported HA rejection of 90.8% and 94.8%, respectively. The abundant oxygen-containing functional groups in GO-incorporated PES membranes resulted in more hydrophilic membranes, leading to enhanced permeability and fouling resistance. The antifouling properties and flux recovery ratio were improved by the addition of both nanoparticles. Given these findings, although both MWCNTs and GO nanoparticles are seen to notably improve the membrane performance, PES membranes with 1 wt.% GO loading provided the highest removal of natural organic matter, such as HA, under the same experimental conditions.
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Affiliation(s)
- Lubna Jaber
- Research Institute of Sciences & Engineering (RISE), University of Sharjah, Sharjah P.O. Box 27272, United Arab Emirates
- Department of Chemistry, College of Sciences, University of Sharjah, Sharjah P.O. Box 27272, United Arab Emirates
| | - Ismail W. Almanassra
- Research Institute of Sciences & Engineering (RISE), University of Sharjah, Sharjah P.O. Box 27272, United Arab Emirates
| | - Sumina Namboorimadathil Backer
- Research Institute of Sciences & Engineering (RISE), University of Sharjah, Sharjah P.O. Box 27272, United Arab Emirates
| | - Viktor Kochkodan
- Qatar Environment and Energy Research Institute, Hamad Bin Khalifa University, Qatar Foundation, Doha P.O. Box 5825, Qatar
| | - Abdallah Shanableh
- Research Institute of Sciences & Engineering (RISE), University of Sharjah, Sharjah P.O. Box 27272, United Arab Emirates
- Department of Civil and Environmental Engineering, College of Engineering, University of Sharjah, Sharjah P.O. Box 27272, United Arab Emirates
| | - Muataz Ali Atieh
- Research Institute of Sciences & Engineering (RISE), University of Sharjah, Sharjah P.O. Box 27272, United Arab Emirates
- Chemical and Water Desalination Engineering Program (CWDE), College of Engineering, University of Sharjah, Sharjah P.O. Box 27272, United Arab Emirates
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Almanassra IW, Al-Ansari T, Ihsanullah I, Kochkodan V, Chatla A, Atieh MA, Shanableh A, Laoui T. Carbide-derived carbon as an extraordinary material for the removal of chromium from an aqueous solution. Chemosphere 2022; 307:135953. [PMID: 35964727 DOI: 10.1016/j.chemosphere.2022.135953] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 07/14/2022] [Accepted: 08/01/2022] [Indexed: 06/15/2023]
Abstract
In the present work, the adsorptive removal of chromium (Cr) from water by carbide-derived carbon (CDC) was investigated. The morphology and structure of the CDC were characterized by using FTIR, SEM, TEM, XRD, and N2 adsorption-desorption measurements. The effect of adsorption parameters including contact time, initial Cr concentration, temperature, initial solution pH, and CDC dosage was examined on the removal of Cr ions. The kinetic analysis revealed that the experimental data on the removal of Cr ions on CDC is well correlated with the pseudo-second order kinetic model (with R2 > 0.999), while the equilibrium data were fitted by the Redlich-Peterson isotherm model (with R2 > 0.992). The Langmuir and Sips models were also in good compliance with the equilibrium data, indicating a monolayer coverage of Cr ions onto the CDC surface with some heterogeneous active adsorption sites. The CDC revealed a notable Langmuir adsorption capacity of 159.1 mg/g for Cr ions at pH 6 and room temperature. The thermodynamic analysis illustrated that the Cr ions elimination by CDC is a feasible adsorption process and endothermic in nature. After five adsorption/desorption cycles, less than 18% reduction in the adsorption capacity was obtained indicating the stability and reusability of the CDC. Moreover, the CDC demonstrated an excellent potential in removing the Cr ions from real brackish water. According to the adsorption data, both physical and chemical adsorption processes occurred, and the adsorption was mainly controlled by electrostatic interactions with a possible reduction of hexavalent Cr to trivalent Cr at acidic conditions.
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Affiliation(s)
- Ismail W Almanassra
- Research Institute of Sciences and Engineering, University of Sharjah, Sharjah, United Arab Emirates.
| | - Tareq Al-Ansari
- College of Science and Engineering, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar
| | - Ihsanullah Ihsanullah
- Center for Environment and Water, Research Institute, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
| | - Viktor Kochkodan
- Qatar Environment and Energy Research Institute, Hamad Bin Khalifa University, Qatar Foundation, PO Box 34110, Doha, Qatar
| | - Anjaneyulu Chatla
- Research Institute of Sciences and Engineering, University of Sharjah, Sharjah, United Arab Emirates
| | - Muataz Ali Atieh
- Research Institute of Sciences and Engineering, University of Sharjah, Sharjah, United Arab Emirates; Chemical and Water Desalination Engineering Program, College of Engineering, University of Sharjah, Sharjah, United Arab Emirates
| | - Abdallah Shanableh
- Research Institute of Sciences and Engineering, University of Sharjah, Sharjah, United Arab Emirates; Department of Civil and Environmental Engineering, College of Engineering, University of Sharjah, Sharjah, United Arab Emirates
| | - Tahar Laoui
- Research Institute of Sciences and Engineering, University of Sharjah, Sharjah, United Arab Emirates; Department of Mechanical and Nuclear Engineering, College of Engineering, University of Sharjah, Sharjah, United Arab Emirates.
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Chatla A, Almanassra IW, Jaber L, Kochkodan V, Laoui T, Alawadhi H, Atieh MA. Influence of calcination atmosphere on Fe doped activated carbon for the application of lead removal from water. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129928] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Chatla A, Almanassra IW, Kallem P, Atieh MA, Alawadhi H, Akula V, Banat F. Dry (CO2) reforming of methane over zirconium promoted Ni-MgO mixed oxide catalyst: Effect of Zr addition. J CO2 UTIL 2022. [DOI: 10.1016/j.jcou.2022.102082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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11
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Almanassra IW, Kochkodan V, Mckay G, Atieh MA, Al-Ansari T. Kinetic and thermodynamic investigations of surfactants adsorption from water by carbide-derived carbon. J Environ Sci Health A Tox Hazard Subst Environ Eng 2021; 56:1206-1220. [PMID: 34618658 DOI: 10.1080/10934529.2021.1973822] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 08/23/2021] [Accepted: 08/23/2021] [Indexed: 06/13/2023]
Abstract
The objective of the study is to investigate the potential of carbide-derived carbon (CDC) for the adsorptive removal of nonionic t-octylphenoxy poly ethoxy ethanol (TX-100), anionic sodium dodecylbenzene sulfonate (SDBS) and cationic 1-hexadecylpyridinium bromide (HDPB) surfactants from water. The CDC was characterized using TEM, SEM, FTIR, BET, EDS, XPS methods and zeta potential measurements. The effects of adsorption parameters included initial surfactant concentration, contact time, temperature, and pH of the feed solution were evaluated. The adsorption capacity and mechanism were determined by modeling the isotherm, kinetic and thermodynamic data. The kinetics results demonstrated that the adsorption of the surfactant by CDC obeys the pseudo 2nd order model. The thermodynamic results have shown that surfactants adsorption by CDC is an endothermic and spontaneous process. The Sips model agreed with the adsorption isotherm data of SDBS with R2 of 0.987, while both Freundlich and Redlich-Peterson models comply well with adsorption data for TX-100 and HDPB. The hydrophobic and electrostatic interactions were found the dominant mechanisms of the adsorption of the surfactant by CDC. The adsorption capacities of CDC were found to be 442.4, 462.0 and 578.4 mg/g for SDBS, HDPB and TX-100, respectively.
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Affiliation(s)
- Ismail W Almanassra
- College of Science and Engineering, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar
- Desalination Research Group, Research Institute of Sciences and Engineering, University of Sharjah, Sharjah, United Arab Emirates
| | - Viktor Kochkodan
- Qatar Environment and Energy Research Institute, Hamad Bin Khalifa University, Doha, Qatar
| | - Gordon Mckay
- College of Science and Engineering, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar
| | - Muataz Ali Atieh
- Desalination Research Group, Research Institute of Sciences and Engineering, University of Sharjah, Sharjah, United Arab Emirates
- College of Engineering, University of Sharjah, Sharjah, United Arab Emirates
| | - Tareq Al-Ansari
- College of Science and Engineering, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar
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12
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Sayed ET, Al Radi M, Ahmad A, Abdelkareem MA, Alawadhi H, Atieh MA, Olabi AG. Faradic capacitive deionization (FCDI) for desalination and ion removal from wastewater. Chemosphere 2021; 275:130001. [PMID: 33984902 DOI: 10.1016/j.chemosphere.2021.130001] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 02/12/2021] [Accepted: 02/15/2021] [Indexed: 06/12/2023]
Abstract
Capacitive deionization (CDI) is one of the emerging desalination technologies that attracted much attention in the last years as a low-cost, energy-efficient, and environmentally-friendly alternative to other desalination technologies, such as multi-stage flash desalination (MSF) and multiple effect distillation (MED). The implementation of faradaic electrode materials is a promising method for enhancing CDI systems' performance by achieving higher salt removal characteristics, lower energy consumption, and better ion selectivity. Therefore, a novel CDI technology named Faradaic CDI (FCDI) that implements faradaic electrode materials arose as a high-performance CDI cell design. In this work, the application of FCDI cells in desalination and wastewater treatment systems is reviewed. First, the progress done on using various FCDI systems for saline water desalination is summarized and discussed. Next, the application of FCDI in wastewater treatment applications and selective ion removal is presented. A thorough comparison between FCDI and conventional carbon-based CDI is carried out in terms of working principle, electrode material's cost, salt removal performance, energy consumption, advantages, and disadvantages. Finally, future research consideration regarding FCDI technology is included to drive this technology closer towards practical application.
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Affiliation(s)
- Enas Taha Sayed
- Center for Advanced Materials Research, University of Sharjah, PO Box 27272, Sharjah, United Arab Emirates; Chemical Engineering Department, Minia University, Elminia, Egypt
| | - Muaz Al Radi
- Center for Advanced Materials Research, University of Sharjah, PO Box 27272, Sharjah, United Arab Emirates; Department of Sustainable and Renewable Energy Engineering, University of Sharjah, PO Box 27272, Sharjah, United Arab Emirates; Department of Electrical Engineering and Computer Science, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Aasim Ahmad
- Department of Sustainable and Renewable Energy Engineering, University of Sharjah, PO Box 27272, Sharjah, United Arab Emirates
| | - Mohammad Ali Abdelkareem
- Center for Advanced Materials Research, University of Sharjah, PO Box 27272, Sharjah, United Arab Emirates; Chemical Engineering Department, Minia University, Elminia, Egypt; Department of Sustainable and Renewable Energy Engineering, University of Sharjah, PO Box 27272, Sharjah, United Arab Emirates.
| | - Hussain Alawadhi
- Center for Advanced Materials Research, University of Sharjah, PO Box 27272, Sharjah, United Arab Emirates; Dept. of Applied Physics and Astronomy, University of Sharjah, PO Box 27272, Sharjah, United Arab Emirates
| | - Muataz Ali Atieh
- Center for Advanced Materials Research, University of Sharjah, PO Box 27272, Sharjah, United Arab Emirates; Department of Mechanical and Nuclear Engineering, University of Sharjah, 27272, Sharjah, United Arab Emirates.
| | - A G Olabi
- Department of Sustainable and Renewable Energy Engineering, University of Sharjah, PO Box 27272, Sharjah, United Arab Emirates; Mechanical Engineering and Design, Aston University, School of Engineering and Applied Science, Aston Triangle, Birmingham, B4 7ET, UK.
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Atieh MA, Alfardan L, Alsabeeha NHM. Flapped versus flapless alveolar ridge preservation: a systematic review and meta-analysis. Int J Oral Maxillofac Surg 2021; 51:133-142. [PMID: 34127352 DOI: 10.1016/j.ijom.2021.05.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 04/12/2021] [Accepted: 05/28/2021] [Indexed: 12/25/2022]
Abstract
Alveolar ridge preservation (ARP) procedures can limit bone changes following tooth extraction. Flapped and flapless surgical approaches have been used for ARP; however, there is a lack of strong scientific evidence regarding their specific influences on the clinical outcomes of ARP. The aim of this systematic review and meta-analysis was to evaluate the effects of flapped and flapless surgical approaches on the dimensional changes of hard and soft tissues and patient-reported outcomes following ARP. Electronic databases were searched to identify randomized controlled trials (RCTs) that compared flapped ARP by means of a coronally advanced flap to flapless ARP where barrier membranes were left exposed. The risk of bias was assessed using the Cochrane Collaboration Risk of Bias tool. Data were analysed using a statistical software program. A total of 754 studies were identified, of which five studies with 149 extraction sockets in 128 participants were included. Overall, meta-analysis did not show any significant differences in the changes in ridge width or height between flapped and flapless ARP. The use of flapless ARP was associated with significantly less postoperative pain, thicker labial soft tissues, and marginally more favourable changes in width of the keratinized tissues compared to the flapped approach. The short-term hard tissue changes following ARP with a flapped or flapless approach are comparable. Postoperative pain and labial soft tissue changes are more favourable following ARP using a flapless approach. Further evidence from long-term RCTs is still required to substantiate the current findings.
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Affiliation(s)
- M A Atieh
- Mohammed Bin Rashid University of Medicine and Health Sciences, Hamdan Bin Mohammed College of Dental Medicine, Dubai Healthcare City, Dubai, United Arab Emirates; Honorary Associate Professor, Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand.
| | - L Alfardan
- Mohammed Bin Rashid University of Medicine and Health Sciences, Hamdan Bin Mohammed College of Dental Medicine, Dubai Healthcare City, Dubai, United Arab Emirates
| | - N H M Alsabeeha
- Ras Al-Khaimah Dental Center, Ministry of Health and Prevention, United Arab Emirates
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Almanassra IW, Kochkodan V, Mckay G, Atieh MA, Al-Ansari T. Review of phosphate removal from water by carbonaceous sorbents. J Environ Manage 2021; 287:112245. [PMID: 33735679 DOI: 10.1016/j.jenvman.2021.112245] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 01/05/2021] [Accepted: 02/20/2021] [Indexed: 06/12/2023]
Abstract
In the last decades, phosphate is considered the main cause of eutrophication and has received substantial attention from the scientific community. Phosphate is a major pollutant that deteriorates water quality, which has been increasing in water resources, primarily due to the increasing global population and corresponding activities. Adsorption technology is amongst the different technologies used to decrease the phosphate levels in water, and has been found to be highly effective even at low phosphate concentrations. Carbonaceous materials and their composites have been widely used for phosphate removal due to their exceptional surface properties and high phosphate sorption capacity. Considering the importance of the topic, this study reviews the reported literature in the field of adsorptive removal of phosphate over various carbon-based adsorbents such as activated carbon, charcoal, graphene, graphene oxide, graphite and carbon nanotubes. Moreover, insights into the adsorption behaviour, experimental parameters, mechanisms, thermodynamics, effect of coexisting ions and the possible desorption processes of phosphate onto modified and unmodified carbonaceous adsorbents are also considered. Finally, research challenges and gaps have been highlighted.
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Affiliation(s)
- Ismail W Almanassra
- Division of Sustainable Development, College of Science and Engineering, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar
| | - Viktor Kochkodan
- Qatar Environment and Energy Research Institute, Hamad Bin Khalifa University, Qatar Foundation, PO Box 5825, Doha, Qatar.
| | - Gordon Mckay
- Division of Sustainable Development, College of Science and Engineering, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar
| | - Muataz Ali Atieh
- College of Engineering, University of Sharjah, PO Box 27272, Sharjah, United Arab Emirates; Desalination Research Group, Research Institute of Sciences and Engineering, University of Sharjah, PO Box 27272, Sharjah, United Arab Emirates
| | - Tareq Al-Ansari
- Division of Sustainable Development, College of Science and Engineering, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar; Division of Engineering Management and Decision Sciences, College of Science and Engineering, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar.
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Almanassra IW, Okonkwo EC, Alhassan O, Atieh MA, Kochkodan V, Al-Ansari T. Stability and thermophysical properties test of carbide-derived carbon thermal fluid; a comparison between functionalized and emulsified suspensions. POWDER TECHNOL 2021. [DOI: 10.1016/j.powtec.2020.09.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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16
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Sayed ET, Shehata N, Abdelkareem MA, Atieh MA. Recent progress in environmentally friendly bio-electrochemical devices for simultaneous water desalination and wastewater treatment. Sci Total Environ 2020; 748:141046. [PMID: 32827889 DOI: 10.1016/j.scitotenv.2020.141046] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 07/13/2020] [Accepted: 07/16/2020] [Indexed: 06/11/2023]
Abstract
Bio-electrochemical systems (BESs) use electroactive micro-organisms for degrading organic materials in wastes for energy and/or chemical production. Microbial based desalination system is a cost-effective and environmentally friendly technique that can be used for water desalination with simultaneous wastewater treatment and energy harvesting. These systems can be used as a standalone technology for water desalination such as microbial desalination cell, microbial electrolysis desalination cell, or a hybrid with other desalination technology. This review summarized the recent progress in using BESs for water desalination, including microbial fuel cell-based desalination (MDC) and microbial electrolysis cell-based desalination (MEDC). The different scaling up trials to commercialize this technology, including the controlling parameters, are discussed. Moreover, the different hybrid desalination systems based on BES are summarized. Finally, the challenges facing the commercialization of the MDC systems were summarized.
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Affiliation(s)
- Enas Taha Sayed
- Center for Advanced Materials Research, University of Sharjah, 27272, Sharjah, United Arab Emirates; Chemical Engineering Department, Faculty of Engineering, Minia University, Egypt
| | - Nabila Shehata
- Environmental Science and Industrial Development Department, Faculty of Postgraduate Studies for Advanced Sciences, Beni-Suef University, Beni‑Suef, Egypt
| | - Mohammad Ali Abdelkareem
- Center for Advanced Materials Research, University of Sharjah, 27272, Sharjah, United Arab Emirates; Chemical Engineering Department, Faculty of Engineering, Minia University, Egypt; Department of Sustainable and Renewable Energy Engineering, University of Sharjah, 27272 Sharjah, United Arab Emirates
| | - Muataz Ali Atieh
- Department of Mechanical and Nuclear Engineering, University of Sharjah, 27272 Sharjah, United Arab Emirates.
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Almanassra IW, Kochkodan V, Ponnusamy G, Mckay G, Ali Atieh M, Al-Ansari T. Carbide Derived Carbon (CDC) as novel adsorbent for ibuprofen removal from synthetic water and treated sewage effluent. J Environ Health Sci Eng 2020; 18:1375-1390. [PMID: 33312649 PMCID: PMC7721931 DOI: 10.1007/s40201-020-00554-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 08/24/2020] [Accepted: 09/29/2020] [Indexed: 05/13/2023]
Abstract
PURPOSE Pharmaceuticals are becoming one of the largest environmental concerns when it comes to the water treatment industry. Increased usage of these chemicals poses a serious risk to ecology and human health due to their leakage into surface waters. In the present study, carbide derived carbon (CDC) was used for the first time as a new adsorbent to remove ibuprofen from synthetic water and wastewater effluent. METHODS The morphology, chemical composition, surface area and surface charge of the CDC particles were investigated using the transmission electron microscopy, scanning electron microscopy, energy dispersive spectroscopy, Fourier transform infrared spectroscopy, BET analysis and zeta potential measurements. The effects of CDC dosage, temperature, initial pH and agitation speed on the adsorption process were examined by using batch adsorption experiments. Moreover, the adsorption kinetics, thermodynamics, and isotherms were investigated. RESULTS Adsorption and kinetic equilibrium data demonstrate that the adsorption of ibuprofen onto the CDC obeys the Langmuir isotherm model and the kinetics follow the pseudo-2nd order mechanism. The thermodynamic results reveal that ibuprofen adsorption is endothermic and spontaneous. The ibuprofen removal by CDC was mainly controlled by the electrostatic forces at high pH of the feed solution and by the dispersive interactions in acidic media. The ibuprofen removal is promoted at high temperature, high agitation speed and low pH. The highest adsorption capacity of ibuprofen onto the CDC was 367 mg/g at pH 3. Furthermore, the CDC efficiently removed ibuprofen from spiked treated sewage effluent. CONCLUSIONS The obtained data indicate that the CDC provides a fast and efficient adsorptive removal of ibuprofen both from a model aqueous solution and treated sewage effluent.
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Affiliation(s)
- Ismail W. Almanassra
- Division of Sustainable Development, College of Science and Engineering, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar
| | - Viktor Kochkodan
- Qatar Environment and Energy Research Institute, Hamad Bin Khalifa University, Qatar Foundation, PO Box 5825, Doha, Qatar
- Doha, Qatar
| | - Guhankumar Ponnusamy
- Qatar Environment and Energy Research Institute, Hamad Bin Khalifa University, Qatar Foundation, PO Box 5825, Doha, Qatar
| | - Gordon Mckay
- Division of Sustainable Development, College of Science and Engineering, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar
| | - Muataz Ali Atieh
- College of Engineering, University of Sharjah, PO Box 27272, Sharjah, United Arab Emirates
- Desalination Research Group, Research Institute of Sciences and Engineering, University of Sharjah, PO Box 27272, Sharjah, United Arab Emirates
| | - Tareq Al-Ansari
- Division of Sustainable Development, College of Science and Engineering, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar
- Doha, Qatar
- Division of Engineering Management and Decision Sciences, College of Science and Engineering, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar
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Kafiah F, Laoui T, Abdelsalam E, Atieh MA, Khan Z, Alkasrawi M. Monolayer Graphene Transfer onto Hydrophilic Substrates: A New Protocol Using Electrostatic Charging. Membranes (Basel) 2020; 10:membranes10110358. [PMID: 33233819 PMCID: PMC7699948 DOI: 10.3390/membranes10110358] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 10/21/2020] [Accepted: 11/10/2020] [Indexed: 11/16/2022]
Abstract
In the present work, we developed a novel method for transferring monolayer graphene onto four different commercial hydrophilic micro/ultra-filtration substrates. The developed method used electrostatic charging to maintain the contact between the graphene and the target substrate intact during the etching step through the wet transfer process. Several measurement/analysis techniques were used in order to evaluate the properties of the surfaces and to assess the quality of the transferred graphene. The techniques included water contact angle (CA), atomic force microscopy (AFM), and field emission scanning electron microscopy (FESEM). Potassium chloride (KCl) ions were used for the transport study through the developed graphene-based membranes. The results revealed that 70% rejection of KCI ions was recorded for the graphene/polyvinylidene difluoride (PVDF1) membrane, followed by 67% rejection for the graphene/polyethersulfone (PES) membrane, and 65% rejection for graphene/PVDF3 membrane. It was revealed that the smoothest substrate was the most effective in rejecting the ions. Although defects such as tears and cracks within the graphene layer were still evolving in this new transfer method, however, the use of Nylon 6,6 interfacial polymerization allowed sealing the tears and cracks within the graphene monolayer. This enhanced the KCl ions rejection of up to 85% through the defect-sealed graphene/polymer composite membranes.
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Affiliation(s)
- Feras Kafiah
- School of Engineering Technology, Al Hussein Technical University, Amman 11831, Jordan; (F.K.); (E.A.)
| | - Tahar Laoui
- Department of Mechanical and Nuclear Engineering, University of Sharjah, Sharjah 27272, UAE;
- Department of Mechanical Engineering, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia;
- Correspondence: (T.L.); (M.A.)
| | - Emad Abdelsalam
- School of Engineering Technology, Al Hussein Technical University, Amman 11831, Jordan; (F.K.); (E.A.)
| | - Muataz Ali Atieh
- Department of Mechanical and Nuclear Engineering, University of Sharjah, Sharjah 27272, UAE;
| | - Zafarullah Khan
- Department of Mechanical Engineering, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia;
| | - Malek Alkasrawi
- Department of Engineering, Wisconsin Institute for Sustainable Technology (WIST), College of Natural Resources, University of Wisconsin-Stevens Point, Stevens Point, WI 54481, USA
- Correspondence: (T.L.); (M.A.)
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Hussein MA, Shahzad HK, Patel F, Atieh MA, Al-Aqeeli N, Baroud TN, Laoui T. Porous Al 2O 3-CNT Nanocomposite Membrane Produced by Spark Plasma Sintering with Tailored Microstructure and Properties for Water Treatment. Nanomaterials (Basel) 2020; 10:E845. [PMID: 32353969 PMCID: PMC7712463 DOI: 10.3390/nano10050845] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Revised: 03/02/2020] [Accepted: 03/03/2020] [Indexed: 11/16/2022]
Abstract
Ceramic-based nanocomposite membranes are gaining great attention in various applications, such as water treatment; gas separation; oil and gas, amid their superior fouling resistance and remarkable chemical/thermal stability. Here, we report for the first time the use of spark plasma sintering (SPS) process to fabricate a porous alumina-carbon nanotubes (Al2O3-CNT) nanocomposite membrane for water treatment. The challenge is this work is to achieve a balance between the amount of porosity, desired for a high water flux, and the membrane strength level, required to resist the applied pressure during a water flow experiment. The effect of SPS process parameters (pressure, temperature, heating rate, and holding time) on the microstructure and properties of the developed membrane was investigated and correlated. A powder mixture composed of Al2O3 and 5 wt % CNT was prepared with the addition of starch as a pore former and gum Arabic and sodium dodecyl sulfate as dispersants. The powder mixture was then sintered using SPS to produce a solid but porous nanocomposite membrane. The structure and microstructure of the developed membrane were characterized using X-ray diffraction and field emission scanning electron microscopy. The performance of the membrane was assessed in terms of porosity, permeability, and mechanical properties. Moreover, the adsorption capability of the membrane was performed by evaluating its removal efficacy for cadmium (II) from water. The microstructural analysis revealed that CNT were distributed within the alumina matrix and located mainly along the grain boundaries. The permeability and strength were highly influenced by the sintering pressure and temperature, respectively. The results indicated that the membrane sintered at a pressure of 10 MPa, temperature of 1100 °C, holding time of 5 min, and heating rate of 200 °C/min exhibited the best combination of permeability and strength. This developed membrane showed a significant removal efficiency of 97% for cadmium (II) in an aqueous solution.
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Affiliation(s)
- Mohamed Abdrabou Hussein
- Center of Research Excellence in Corrosion, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | - Hafiz Khurram Shahzad
- Department of Mechanical Engineering, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | - Faheemuddin Patel
- Department of Mechanical Engineering, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | - Muataz Ali Atieh
- Department of Chemical Engineering, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | - Nasser Al-Aqeeli
- Department of Mechanical Engineering, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | - Turki Nabieh Baroud
- Department of Mechanical Engineering, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | - Tahar Laoui
- Department of Mechanical Engineering, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
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Osman AM, Abulkibash AM, Atieh MA. Time-biased square wave differential electrolytic potentiometry for determination of ascorbic acid in a complex matrix at multi-walled carbon nanotubes modified silver electrodes. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2018.08.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Najjar A, Sabri S, Al-Gaashani R, Atieh MA, Kochkodan V. Antibiofouling Performance by Polyethersulfone Membranes Cast with Oxidized Multiwalled Carbon Nanotubes and Arabic Gum. Membranes (Basel) 2019; 9:membranes9020032. [PMID: 30813347 PMCID: PMC6410110 DOI: 10.3390/membranes9020032] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Revised: 02/15/2019] [Accepted: 02/17/2019] [Indexed: 12/07/2022]
Abstract
Despite extensive research efforts focusing on tackling membrane biofouling, one of the biggest problems associated with membrane technology, there has been little headway in this area. This study presents novel polyethersulfone (PES) membranes synthesized via a phase inversion method at incremental loadings of functionalized oxidized multiwalled carbon nanotubes (OMWCNT) along with 1 wt. % arabic gum (AG). The synthesized OMWCNT were examined using scanning electron microscopy and transmission electron microscopy for morphological changes compared to the commercially obtained carbon nanotubes. Additionally energy-dispersive X-ray spectroscopy was carried out on the raw and OMWCNT materials, indicating an almost 2-fold increase in oxygen content in the latter sample. The cast PES/OMWCNT membranes were extensively characterized, and underwent a series of performance testing using bovine serum albumin solution for fouling tests and model Gram-positive (Bacillus subtilis) and Gram-negative (Escherichia coli) bacterial species for anti-biofouling experiments. Results indicated that the composite PES membranes, which incorporated the OMWCNT and AG, possessed significantly stronger hydrophilicity and negative surface charge as evidenced by water contact angle and zeta potential data, respectively, when compared to plain PES membranes. Furthermore atomic force microscopy analysis showed that the PES/OMWCNT membranes exhibited significantly lower surface roughness values. Together, these membrane surface features were held responsible for the anti-adhesive nature of the hybrid membranes seen during biofouling tests. Importantly, the prepared membranes were able to inhibit bacterial colonization upon incubation with both Gram-positive and Gram-negative bacterial suspensions. The PES/OMWCNT membranes also presented more resilient normalized flux values when compared to neat PES and commercial membrane samples during filtration of both bacterial suspensions and real treated sewage effluents. Taken together, the results of this study allude to OMWCNT and AG as promising additives, for incorporation into polymeric membranes to enhance biofouling resistance.
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Affiliation(s)
- Ahmad Najjar
- College of Life and Health Sciences, Hamad Bin Khalifa University (HBKU), P.O. Box 34110 Doha, Qatar.
| | - Souhir Sabri
- Qatar Environment and Energy Research Institute (QEERI), Hamad Bin Khalifa University (HBKU), P.O. Box 34110 Doha, Qatar.
| | - Rashad Al-Gaashani
- Qatar Environment and Energy Research Institute (QEERI), Hamad Bin Khalifa University (HBKU), P.O. Box 34110 Doha, Qatar.
| | - Muataz Ali Atieh
- Qatar Environment and Energy Research Institute (QEERI), Hamad Bin Khalifa University (HBKU), P.O. Box 34110 Doha, Qatar.
| | - Viktor Kochkodan
- Qatar Environment and Energy Research Institute (QEERI), Hamad Bin Khalifa University (HBKU), P.O. Box 34110 Doha, Qatar.
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Mehmood U, Malaibari Z, Rabani FA, Rehman AU, Ahmad S, Atieh MA, Kamal MS. Photovoltaic improvement and charge recombination reduction by aluminum oxide impregnated MWCNTs/TiO2 based photoanode for dye-sensitized solar cells. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.04.027] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Atieh MA, Alsabeeha N, Tawse-Smith A, Payne AGT. Xenogeneic collagen matrix for periodontal plastic surgery procedures: a systematic review and meta-analysis. J Periodontal Res 2015; 51:438-52. [PMID: 26547393 DOI: 10.1111/jre.12333] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/10/2015] [Indexed: 12/13/2022]
Abstract
Several clinical trials describe the effectiveness of xenogeneic collagen matrix (XCM) as an alternative option to surgical mucogingival procedures for the treatment of marginal tissue recession and augmentation of insufficient zones of keratinized tissue (KT). The aim of this systematic review and meta-analysis was to evaluate the clinical and patient-centred outcomes of XCM compared to other mucogingival procedures. Applying guidelines of the Preferred Reporting Items for Systematic Reviews and Meta analyses statement, randomized controlled trials were searched for in electronic databases and complemented by hand searching. The risk of bias was assessed using the Cochrane Collaboration's Risk of Bias tool and data were analysed using statistical software. A total of 645 studies were identified, of which, six trials were included with 487 mucogingival defects in 170 participants. Overall meta-analysis showed that connective tissue graft (CTG) in conjunction with the coronally advanced flap (CAF) had a significantly higher percentage of complete/mean root coverage and mean recession reduction than XCM. Insufficient evidence was found to determine any significant differences in width of KT between XCM and CTG. The XCM had a significantly higher mean root coverage, recession reduction and gain in KT compared to CAF alone. No significant differences in patient's aesthetic satisfaction were found between XCM and CTG, except for postoperative morbidity in favour of XCM. Operating time was significantly reduced with the use of XCM compared with CTG but not with CAF alone. There is no evidence to demonstrate the effectiveness of XCM in achieving greater root coverage, recession reduction and gain in KT compared to CTG plus CAF. Superior short-term results in treating root coverage compared with CAF alone are possible. There is limited evidence that XCM may improve aesthetic satisfaction, reduce postoperative morbidity and shorten the operating time. Further long-term randomized controlled trials are required to endorse the supposed advantages of XCM.
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Affiliation(s)
- M A Atieh
- Private Practice, Christchurch, New Zealand
| | - N Alsabeeha
- Prosthetic Section, Ras Al-Khaimah Dental Centre, Ministry of Health, Ras Al-Khaimah, United Arab Emirates
| | - A Tawse-Smith
- Sir John Walsh Research Institute, Dean's Office, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - A G T Payne
- Private Practice, Whangarei, Northland, New Zealand
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Asmaly HA, Abussaud B, Ihsanullah, Saleh TA, Gupta VK, Atieh MA. Ferric oxide nanoparticles decorated carbon nanotubes and carbon nanofibers: From synthesis to enhanced removal of phenol. Journal of Saudi Chemical Society 2015. [DOI: 10.1016/j.jscs.2015.06.002] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Tawse-Smith A, Atieh MA, Tompkins G, Duncan WJ, Reid MR, Stirling CH. The effect of piezoelectric ultrasonic instrumentation on titanium discs: a microscopy and trace elemental analysis in vitro study. Int J Dent Hyg 2015; 14:191-201. [PMID: 26094557 DOI: 10.1111/idh.12142] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/10/2015] [Indexed: 11/27/2022]
Abstract
AIM To evaluate in vitro topographical and composition changes by piezoelectric ultrasonic instrumentation with metallic and plastic tips on machined and moderately roughened titanium surfaces. METHODS Twenty machined and moderately roughened laser-marked titanium discs were ultrasonically instrumented with metallic and plastic tips. Surface instrumentation was carried out with controlled pressure for 20 and 30 seconds at two power settings. For each time and power setting, instrumentation was repeated four times with one instrumentation per disc quadrant. Surface topography analysis was performed using scanning electron microscopy (SEM) and confocal laser scanning microscopy (CLSM). Surface roughness measurements were compared between instrumented and non-instrumented surfaces. Surface element composition and rinsing solutions were evaluated using energy-dispersive spectroscopy (EDS) and trace elemental analysis using inductively coupled plasma mass spectrometry (ICPMS), respectively. RESULTS SEM photomicrographs and CLSM 3D surface plot images of instrumented machined and moderately roughened surfaces demonstrated severe surface topographical alterations with metallic tips and mild to moderate changes for plastic tip instrumented sites. ICPMS analysis of the rinsing solutions identified titanium and other metal traces with the use of metallic tips, and mainly titanium and carbon when plastic tips were used. Surface EDS analysis showed elemental traces of the ultrasonic tips. CONCLUSION Ultrasonic instrumentation with metallic or plastic tips created surface topographical and compositional changes. Different changes in surface topography were noted between the surfaces, as the roughness of the machined surfaces increased while the extent of roughness of the moderately roughened surfaces decreased. The clinical relevance of these changes is yet to be determined.
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Affiliation(s)
- A Tawse-Smith
- Oral Implantology Research Group, Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - M A Atieh
- Private practice, Dunedin, 9010, New Zealand
| | - G Tompkins
- Department of Oral Sciences, Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - W J Duncan
- Oral Sciences Department, Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - M R Reid
- Department of Chemistry, University of Otago, Dunedin, New Zealand.,Centre for Trace Element Analysis, University of Otago, Dunedin, New Zealand
| | - C H Stirling
- Department of Chemistry, University of Otago, Dunedin, New Zealand.,Centre for Trace Element Analysis, University of Otago, Dunedin, New Zealand
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Ihsanullah, Al-Khaldi FA, Abusharkh B, Khaled M, Atieh MA, Nasser M, laoui T, Saleh TA, Agarwal S, Tyagi I, Gupta VK. Adsorptive removal of cadmium(II) ions from liquid phase using acid modified carbon-based adsorbents. J Mol Liq 2015. [DOI: 10.1016/j.molliq.2015.01.033] [Citation(s) in RCA: 120] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Al-Hakami SM, Khalil AB, Laoui T, Atieh MA. Fast Disinfection of Escherichia coli Bacteria Using Carbon Nanotubes Interaction with Microwave Radiation. Bioinorg Chem Appl 2013; 2013:458943. [PMID: 23606820 PMCID: PMC3625577 DOI: 10.1155/2013/458943] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2012] [Accepted: 02/18/2013] [Indexed: 11/18/2022] Open
Abstract
Water disinfection has attracted the attention of scientists worldwide due to water scarcity. The most significant challenges are determining how to achieve proper disinfection without producing harmful byproducts obtained usually using conventional chemical disinfectants and developing new point-of-use methods for the removal and inactivation of waterborne pathogens. The removal of contaminants and reuse of the treated water would provide significant reductions in cost, time, liabilities, and labour to the industry and result in improved environmental stewardship. The present study demonstrates a new approach for the removal of Escherichia coli (E. coli) from water using as-produced and modified/functionalized carbon nanotubes (CNTs) with 1-octadecanol groups (C18) under the effect of microwave irradiation. Scanning/transmission electron microscopy, thermogravimetric analysis, and FTIR spectroscopy were used to characterise the morphological/structural and thermal properties of CNTs. The 1-octadecanol (C18) functional group was attached to the surface of CNTs via Fischer esterification. The produced CNTs were tested for their efficiency in destroying the pathogenic bacteria (E. coli) in water with and without the effect of microwave radiation. A low removal rate (3-5%) of (E. coli) bacteria was obtained when CNTs alone were used, indicating that CNTs did not cause bacterial cellular death. When combined with microwave radiation, the unmodified CNTs were able to remove up to 98% of bacteria from water, while a higher removal of bacteria (up to 100%) was achieved when CNTs-C18 was used under the same conditions.
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Affiliation(s)
| | | | - Tahar Laoui
- Department of Mechanical Engineering, KFUPM, Dhahran 31261, Saudi Arabia
| | - Muataz Ali Atieh
- Department of Chemical Engineering, KFUPM, Dhahran 31261, Saudi Arabia
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Thomas SP, Girei SA, Atieh MA, De S, Al-Juhani A. Rheological behavior of polypropylene nanocomposites at low concentration of surface modified carbon nanotubes. POLYM ENG SCI 2012. [DOI: 10.1002/pen.23143] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Bahuleyan BK, Atieh MA, De SK, Jabarulla Khan M, Al-Harthi MA. Easy one-pot method to control the morphology of polyethylene/carbon nanotube nanocomposites using metallocene catalysts. J Polym Res 2012. [DOI: 10.1007/s10965-011-9744-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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P. ST, Girei SA, Al-Juhani AA, Mezghani K, De S, Atieh MA. Effect of phenol functionalized carbon nanotube on mechanical, dynamic mechanical, and thermal properties of isotactic polypropylene nanocomposites. POLYM ENG SCI 2011. [DOI: 10.1002/pen.22113] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Humplik T, Lee J, O'Hern SC, Fellman BA, Baig MA, Hassan SF, Atieh MA, Rahman F, Laoui T, Karnik R, Wang EN. Nanostructured materials for water desalination. Nanotechnology 2011; 22:292001. [PMID: 21680966 DOI: 10.1088/0957-4484/22/29/292001] [Citation(s) in RCA: 255] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Desalination of seawater and brackish water is becoming an increasingly important means to address the scarcity of fresh water resources in the world. Decreasing the energy requirements and infrastructure costs of existing desalination technologies remains a challenge. By enabling the manipulation of matter and control of transport at nanometer length scales, the emergence of nanotechnology offers new opportunities to advance water desalination technologies. This review focuses on nanostructured materials that are directly involved in the separation of water from salt as opposed to mitigating issues such as fouling. We discuss separation mechanisms and novel transport phenomena in materials including zeolites, carbon nanotubes, and graphene with potential applications to reverse osmosis, capacitive deionization, and multi-stage flash, among others. Such nanostructured materials can potentially enable the development of next-generation desalination systems with increased efficiency and capacity.
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Affiliation(s)
- T Humplik
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
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Atieh MA, Bakather OY, Al-Tawbini B, Bukhari AA, Abuilaiwi FA, Fettouhi MB. Effect of carboxylic functional group functionalized on carbon nanotubes surface on the removal of lead from water. Bioinorg Chem Appl 2011; 2010:603978. [PMID: 21350599 PMCID: PMC3038556 DOI: 10.1155/2010/603978] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2010] [Revised: 12/15/2010] [Accepted: 12/22/2010] [Indexed: 12/03/2022] Open
Abstract
The adsorption mechanism of the removal of lead from water by using carboxylic functional group (COOH) functionalized on the surface of carbon nanotubes was investigated. Four independent variables including pH, CNTs dosage, contact time, and agitation speed were carried out to determine the influence of these parameters on the adsorption capacity of the lead from water. The morphology of the synthesized multiwall carbon nanotubes (MWCNTs) was characterized by using field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM) in order to measure the diameter and the length of the CNTs. The diameters of the carbon nanotubes were varied from 20 to 40 nm with average diameter at 24 nm and 10 micrometer in length. Results of the study showed that 100% of lead was removed by using COOH-MCNTs at pH 7, 150 rpm, and 2 hours. These high removal efficiencies were likely attributed to the strong affinity of lead to the physical and chemical properties of the CNTs. The adsorption isotherms plots were well fitted with experimental data.
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Affiliation(s)
- Muataz Ali Atieh
- Chemical Engineering Department, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
- Center of Research Excellences in Nanotechnology, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | - Omer Yehya Bakather
- Chemical Engineering Department, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | - Bassam Al-Tawbini
- Center of Research Excellences in Nanotechnology, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
- Earth Sciences Department, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | - Alaadin A. Bukhari
- Research Institute, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | - Faraj Ahmad Abuilaiwi
- Center of Research Excellences in Nanotechnology, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
- Hafr Al-Batin Community College, King Fahd University of Petroleum & Minerals, Hafr Al-Batin 31991, Saudi Arabia
| | - Mohamed B. Fettouhi
- Chemistry Department, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
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Atieh MA, Bakather OY, Al-Tawbini B, Bukhari AA, Abuilaiwi FA, Fettouhi MB. Effect of Carboxylic Functional Group Functionalized on Carbon Nanotubes Surface on the Removal of Lead from Water. Bioinorg Chem Appl 2010. [DOI: 10.10.1155/2010/603978] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
The adsorption mechanism of the removal of lead from water by using carboxylic functional group (COOH) functionalized on the surface of carbon nanotubes was investigated. Four independent variables including pH, CNTs dosage, contact time, and agitation speed were carried out to determine the influence of these parameters on the adsorption capacity of the lead from water. The morphology of the synthesized multiwall carbon nanotubes (MWCNTs) was characterized by using field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM) in order to measure the diameter and the length of the CNTs. The diameters of the carbon nanotubes were varied from 20 to 40 nm with average diameter at 24 nm and 10 micrometer in length. Results of the study showed that 100% of lead was removed by using COOH-MCNTs at pH 7, 150 rpm, and 2 hours. These high removal efficiencies were likely attributed to the strong affinity of lead to the physical and chemical properties of the CNTs. The adsorption isotherms plots were well fitted with experimental data.
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Affiliation(s)
- Muataz Ali Atieh
- Chemical Engineering Department, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
- Center of Research Excellences in Nanotechnology, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | - Omer Yehya Bakather
- Chemical Engineering Department, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | - Bassam Al-Tawbini
- Center of Research Excellences in Nanotechnology, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
- Earth Sciences Department, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | - Alaadin A. Bukhari
- Research Institute, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | - Faraj Ahmad Abuilaiwi
- Center of Research Excellences in Nanotechnology, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
- Hafr Al-Batin Community College, King Fahd University of Petroleum & Minerals, Hafr Al-Batin 31991, Saudi Arabia
| | - Mohamed B. Fettouhi
- Chemistry Department, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
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Abuilaiwi FA, Atieh MA, Ahmad MB, Ibrahim NA, Rahman MZA, Yunus WMZW. Preparation and Characterization of Polyamidoxime Chelating Resin from Rubberwood Fibre-G-Polyacrylonitrile. ADSORPT SCI TECHNOL 2009. [DOI: 10.1260/0263-6174.27.7.661] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Grafted rubberwood fibre was converted to polyamidoxime ion-exchange resin in order to remove heavy metal ions from aqueous solution. The cation-exchange resin existed predominantly in the syn-hydroxyamino form. The water uptake by the resin was ca. 31 g/g dry resin while its hydrogen ion capacity was 3.6 mmol/g. The adsorption capacity of the resin towards different metal ions from wastewater was determined at different pH values within the range 1–6. The prepared chelating ion-exchanger exhibited the highest adsorption capacity towards Cu2+ ions (3.83 mmol/g), followed by Cd2+, Fe3+, Pb2+, Ni2+ and Co3+ ions, respectively. The results showed that the adsorption capacity depended on the solution pH. Polyamidoxime ion-exchange resin was also used to separate Co3+ and Ni2+ ions from Cu2+ ions using a column technique. On passing Cu2+/Ni2+ and Cu2+/Co3+ ion mixtures through the resin at pH 3, Cu2+ ions were adsorbed by the resin but no sorption of Ni2+ or Co3+ ions was detected. Approximately 98% of the Cu2+ ions could be desorbed from the resin. FT-IR spectroscopy was used to confirm the conversion of polyacrylonitrile-g-rubberwood fibre to polyamidoxime.
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Affiliation(s)
- Faraj A. Abuilaiwi
- Center of Research Excellence in Nanotechnology, King Fahd University of Petroleum and Minerals, 31261 Dhahran, Saudi Arabia
- Hafr Al-Batin Community College, King Fahd University of Petroleum and Minerals, 31991 Hafr Al-Batin, Saudi Arabia
| | - Muataz Ali Atieh
- Department of Chemical Engineering, King Fahd University of Petroleum and Minerals, 31261 Dhahran, Saudi Arabia
| | - Mansor B. Ahmad
- Faculty of Science and Environmental Studies, Department of Chemistry, University Putra Malaysia, 43400 UPM Serdang, Malaysia
| | - Nor Azowa Ibrahim
- Faculty of Science and Environmental Studies, Department of Chemistry, University Putra Malaysia, 43400 UPM Serdang, Malaysia
| | - Mohamad Zaki Ab. Rahman
- Faculty of Science and Environmental Studies, Department of Chemistry, University Putra Malaysia, 43400 UPM Serdang, Malaysia
| | - Wan Md. Zin Wan Yunus
- Faculty of Science and Environmental Studies, Department of Chemistry, University Putra Malaysia, 43400 UPM Serdang, Malaysia
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