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Doustdar F, Olad A, Ghorbani M. Corrigendum to "Effect of glutaraldehyde and calcium chloride as different crosslinking agents on the characteristics of chitosan/cellulose nanocrystals scaffold" [Int. J. Biol. Macromol. 208 (2022) 912-924]. Int J Biol Macromol 2024; 267:131382. [PMID: 38614045 DOI: 10.1016/j.ijbiomac.2024.131382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/15/2024]
Affiliation(s)
- Fatemeh Doustdar
- Polymer Composite Research Laboratory, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | - Ali Olad
- Polymer Composite Research Laboratory, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran.
| | - Marjan Ghorbani
- Nutrition Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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Bastanian M, Olad A, Ghorbani M. Tuning a green carboxymethyl cellulose-based pre-tanning agent via peroxide oxidation for high chrome exhaustion in leather industry. Int J Biol Macromol 2024; 265:131133. [PMID: 38537851 DOI: 10.1016/j.ijbiomac.2024.131133] [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] [Received: 12/03/2023] [Revised: 03/06/2024] [Accepted: 03/23/2024] [Indexed: 04/01/2024]
Abstract
The low chrome uptake by collagen in the conventional tanning process leads to the pollution of the wastewater. Due to environmental concerns, leather scientists are already searching for innovative ways to produce pre-tanning agents as a high exhaustion chrome tanning auxiliary. Herein, a novel kind of pre-tanning agent is engineered by converting carboxymethyl cellulose (CMC) to oxidized carboxymethyl cellulose (OCMC) via the hydrogen peroxide process. FT-IR and carboxyl content analysis demonstrated the increase in carboxyl content after oxidation. After that, the obtained OCMC was utilized as a pre-tanning agent, resulting in a high exhaustion of chrome (92.76 %) which is 27.76 % more than conventional chrome tanning (65 %), and the amount of chrome in wastewater reduced to 7.24 %. The hydrothermal stability of wet-blue increased by increasing the uptake of chrome (Ts = 118 °C). The obtained crust leather represented excellent mechanical properties (Tensile strength: 305.68 kg/cm2; tear strength: 50 kg/cm) and desirable organoleptic properties. The environmental analysis signifies a significant step towards a cleaner and sustainable tanning process (COD = 1600, BOD5 = 560 mg/L) compared to the conventional chrome tanning process. Consequently, the obtained results offer a green pre-tanning agent to meet the requirements of the sustainable development of the leather industry.
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Affiliation(s)
- Maryam Bastanian
- Polymer Composite Research Laboratory, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | - Ali Olad
- Polymer Composite Research Laboratory, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran.
| | - Marjan Ghorbani
- Iran polymer and Petrochemical Institute, P.O. Box: 14965/115, Tehran, Iran
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Babakhani A, Peighambardoust SJ, Olad A. Fabrication of magnetic nanocomposite scaffolds based on polyvinyl alcohol-chitosan containing hydroxyapatite and clay modified with graphene oxide: Evaluation of their properties for bone tissue engineering applications. J Mech Behav Biomed Mater 2024; 150:106263. [PMID: 38039775 DOI: 10.1016/j.jmbbm.2023.106263] [Citation(s) in RCA: 1] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 11/17/2023] [Accepted: 11/20/2023] [Indexed: 12/03/2023]
Abstract
One of the most common systems for bone tissue engineering is polymeric scaffolds. However, the low mechanical properties of polymeric scaffolds, considering the properties required for bone replacement tissue, are the main challenge for researchers in this field. For bone tissue engineering, this research prepared nanocomposite scaffolds based on polyvinyl alcohol-chitosan containing modified clay and hydroxyapatite (HAp). HAp used in these 3D scaffolds was synthesized from a chicken femur, and Cloisite 30B clay nanoparticles were modified by graphene oxide and Fe3O4 nanoparticles to strengthen their mechanical properties. Sample characteristics were determined using FT-IR, XRD, SEM, TGA, swelling rate, laboratory degradation, and biological and mechanical properties. These analyses showed that 2% of modified clay (C30B/GO/Fe3O4, CGF) inside the nanocomposite scaffold increased the compressive strength 23 times compared to the pristine polymer scaffold. Also, adding HAp particles and modified clay simultaneously increased the mineralization on the surface of the scaffolds. Final nanocomposite scaffolds were found to have a compressive strength of 9.31 MPa, a porosity of 75 %, and a porosity size of 50 nm and were in the range of cancellous bone. The final swelling amount is 1790 %, which is the amount that is Favorable for bone scaffold. Finally, the analysis results to determine the samples' toxicity showed that none of the prepared scaffolds were toxic and showed good cell viability.
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Affiliation(s)
- Akram Babakhani
- Faculty of Chemical and Petroleum Engineering, University of Tabriz, Tabriz, 5166616471, Iran
| | | | - Ali Olad
- Polymer Composite Research Laboratory, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
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Zeynali M, Ranjbarbaranlo H, Olad A. Study of Titanium/Vanadium Ziegler–Natta hybrid catalysts performance in slurry-phase ethylene polymerization for producing polyethylene with broad/bimodal molecular weight distribution. J Polym Res 2023. [DOI: 10.1007/s10965-023-03472-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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Hagh HB, Unsworth LD, Doustdar F, Olad A. Fibrous electrospun polycaprolactone nanomat reinforced with halloysite nanotubes: Preparation and study of its potential application as tissue engineering scaffold. POLYM ADVAN TECHNOL 2023. [DOI: 10.1002/pat.6001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Haleh Bakhtkhosh Hagh
- Polymer Composite Research Laboratory, Department of Applied Chemistry, Faculty of Chemistry University of Tabriz Tabriz Iran
- Department of Chemical and Materials Engineering University of Alberta Edmonton Alberta Canada
| | - Larry D. Unsworth
- Department of Chemical and Materials Engineering University of Alberta Edmonton Alberta Canada
| | - Fatemeh Doustdar
- Polymer Composite Research Laboratory, Department of Applied Chemistry, Faculty of Chemistry University of Tabriz Tabriz Iran
| | - Ali Olad
- Polymer Composite Research Laboratory, Department of Applied Chemistry, Faculty of Chemistry University of Tabriz Tabriz Iran
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Olad A, Aghayan J, Gharekhani H, Akbarzadeh M. Carboxymethyl cellulose-based semi-IPN hydrogel nanocomposite with improved physicochemical and mechanical properties. J Polym Res 2022. [DOI: 10.1007/s10965-022-03307-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/10/2022]
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Farshi Azhar F, Rezaei M, Olad A, Mousazadeh H. The effect of montmorillonite in graphene oxide/chitosan nanocomposite on controlled release of gemcitabine. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-021-03774-y] [Citation(s) in RCA: 1] [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: 01/01/2023]
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Hezari S, Olad A, Dilmaghani A. Modified gelatin/iron- based metal-organic framework nanocomposite hydrogel as wound dressing: Synthesis, antibacterial activity, and Camellia sinensis release. Int J Biol Macromol 2022; 218:488-505. [PMID: 35878666 DOI: 10.1016/j.ijbiomac.2022.07.150] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [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: 04/05/2022] [Revised: 07/17/2022] [Accepted: 07/19/2022] [Indexed: 01/16/2023]
Abstract
A new kind of Camellia sinensis-loaded nanocomposite hydrogel based on modified gelatin/iron-metal-organic framework was developed as an antibacterial wound dressing. Gelatin as a biocompatible natural polymer was modified with methacrylate anhydride to produce gelatin methacrylate. Thereafter, acrylic acid and acrylamide were grafted on gelatin methacrylate during an aqueous polymerization process. To enhance the porosity, mechanical strength, and drug loading capability of the hydrogel and reduce its toxicity, iron- based metal-organic framework was incorporated within the hydrogel. To add more functionality to the final wound dressing, Camellia sinensis, an antibacterial herbal drug was loaded on the hydrogel. The structural and chemical properties of prepared nanocomposite hydrogel were investigated by FTIR, XRD, SEM, and TGA techniques. The incorporation of iron-based metal-organic framework within the hydrogel matrix led to an increase in its water absorption value from 400.10 to 547.96 (g/g). The release study of Camellia sinensis (CS) extract from the prepared nanocomposite hydrogel exhibited a sustained release manner. The antibacterial test revealed the nanocomposite hydrogel contain extract has an effective antibacterial function against "Bacillus serous", "Staphylococcus aureus", "Streptococcus mutans"," Escherichia coli", "Klebsiella pneumoniae", and "Pseudomonas aeruginosa" bacteria. Therefore, the synthesized nanocomposite is a good candidate as an antibacterial hydrogel wound dressing. .
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Affiliation(s)
- Sepideh Hezari
- Polymer Composite Research Laboratory, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | - Ali Olad
- Polymer Composite Research Laboratory, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran.
| | - Azita Dilmaghani
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
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Doustdar F, Olad A, Ghorbani M. Effect of glutaraldehyde and calcium chloride as different crosslinking agents on the characteristics of chitosan/cellulose nanocrystals scaffold. Int J Biol Macromol 2022; 208:912-924. [PMID: 35367272 DOI: 10.1016/j.ijbiomac.2022.03.193] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [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] [Received: 01/08/2022] [Revised: 03/17/2022] [Accepted: 03/28/2022] [Indexed: 11/25/2022]
Abstract
The effect of glutaraldehyde and calcium cations as covalent and ionic crosslinkers was investigated on the main characteristics of scaffolds based on chitosan and cellulose nanocrystals. Therefore, four different scaffolds based on chitosan/cellulose nanocrystals with different crosslinking methods were fabricated using the freeze-drying method for potential use in bone tissue engineering. The structural and chemical features of prepared scaffolds were studied by the FTIR technique. FESEM images revealed that all scaffold samples are porous three-dimensional networks in which the pores are connected. TGA analysis showed that the thermal stability of scaffolds based on chitosan/cellulose nanocrystals has not been changed significantly by using different crosslinking methods. The chitosan/cellulose nanocrystals scaffold crosslinked by glutaraldehyde represented the highest compressive strength and the uncrosslinked scaffold showed the highest swelling ratio in comparison to the other scaffolds. The fastest degradation rate belonged to the scaffold crosslinked by calcium cations. FESEM images and EDX analysis confirmed that fabricated scaffolds have good biomineralization ability. The cell viability and cell attachment results indicated that all four scaffolds support cell proliferation and cell adhesion. However, the viability of NIH3T3 fibroblast cells in the presence of glutaraldehyde-containing scaffolds was lower than that of other scaffolds.
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Affiliation(s)
- Fatemeh Doustdar
- Polymer Composite Research Laboratory, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | - Ali Olad
- Polymer Composite Research Laboratory, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran.
| | - Marjan Ghorbani
- Nutrition Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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Bakhtkhosh Hagh H, Unsworth LD, Olad A. Evaluating the effect of graphene oxide PEGylation on the properties of chitosan-graphene oxide nanocomposite scaffold. J Biomed Mater Res B Appl Biomater 2022; 110:2353-2368. [PMID: 35543538 DOI: 10.1002/jbm.b.35082] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 04/07/2022] [Accepted: 04/18/2022] [Indexed: 11/09/2022]
Abstract
In this study, graphene oxide (GO) was functionalized with polyethylene glycol (PEG) to understand the effect of PEGlayted GO on properties of chitosan-based nanocomposite scaffold. GO was synthesized according to modified Hummer's method and covalently linked to polymeric chains of PEG to produce polyethylene glycolated GO (PGO). Successful preparation of GO and PGO was confirmed by FT-IR and Raman techniques, where the chemical bonding of PEG and GO nanosheets were concluded based on PGOs' lower zeta potential compared to GO. Nanocomposite scaffolds were prepared by adding equal amounts of GO and PGO into 2% (w/v) chitosan (Cs) solutions. The highly porous scaffolds were developed by lyophilization of solutions. Incorporation of GO and PGO into chitosan scaffold network resulted in uniform and spherical pores. Modified samples offered higher porosity and density, indicating adequate scaffold structure. Improvements in the physical properties of prepared chitosan scaffolds were concluded through higher water absorption and retention values. Compressive strength measurement showed 6.33 and 5.5 times improvement respectively for Cs-GO and Cs-PGO samples compared to Cs scaffold. The Cs-GO scaffolds showed minimum susceptibility toward enzymatic degradation and higher degrees of protein adsorption (26% and 23% improvement in value of adsorbed protein respectively for Cs-GO and Cs-PGO compared to Cs scaffold) and biomineral formation on scaffold surface. Also, Cs-PGO sample showed the highest degree of cell viability and lower hemolysis than both Cs and Cs-GO scaffolds. Investigations showed that cell infiltration into scaffold porous structure was more prominent in Cs-PGO scaffolds than in Cs and Cs-GO scaffolds.
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Affiliation(s)
- Haleh Bakhtkhosh Hagh
- Polymer Composite Research Laboratory, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran.,Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, Canada
| | - Larry D Unsworth
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, Canada
| | - Ali Olad
- Polymer Composite Research Laboratory, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
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Rahmani S, Olad A, Rahmani Z. Preparation of self-healable nanocomposite hydrogel based on Gum Arabic/gelatin and graphene oxide: study of drug delivery behavior. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04247-6] [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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12
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Doustdar F, Olad A, Ghorbani M. Development of a novel reinforced scaffold based on chitosan/cellulose nanocrystals/halloysite nanotubes for curcumin delivery. Carbohydr Polym 2022; 282:119127. [DOI: 10.1016/j.carbpol.2022.119127] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 01/03/2022] [Accepted: 01/07/2022] [Indexed: 12/20/2022]
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Maryami F, Olad A, Nofouzi K. Fabrication of slippery lubricant-infused porous surface for inhibition of microorganism adhesion on the porcelain surface. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.01.008] [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: 10/19/2022]
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Ahmadi A, Zarei M, Hassani A, Ebratkhahan M, Olad A. Facile synthesis of iron(II) doped carbonaceous aerogel as a three-dimensional cathode and its excellent performance in electro-Fenton degradation of ceftazidime from water solution. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119559] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Olad A, Bastanian M, Aber S, Zebhi H. Ion-crosslinked carboxymethyl cellulose/polyaniline bio-conducting interpenetrated polymer network: preparation, characterization and application for an efficient removal of Cr(VI) from aqueous solution. Iran Polym J 2020. [DOI: 10.1007/s13726-020-00877-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Mirmohseni A, Rastgar M, Olad A. Effectiveness of PANI/Cu/TiO
2
ternary nanocomposite on antibacterial and antistatic behaviors in polyurethane coatings. J Appl Polym Sci 2020. [DOI: 10.1002/app.48825] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Abdolreza Mirmohseni
- Department of Applied Chemistry, Faculty of ChemistryUniversity of Tabriz Tabriz Iran
| | - Mortaza Rastgar
- Department of Applied Chemistry, Faculty of ChemistryUniversity of Tabriz Tabriz Iran
| | - Ali Olad
- Department of Applied Chemistry, Faculty of ChemistryUniversity of Tabriz Tabriz Iran
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Olad A, Eslamzadeh M, Katiraee F, Mirmohseni A. Evaluation of in vitro anti-fungal properties of allicin loaded ion cross-linked poly (AA-co-AAm)/PVA/Cloisite 15A Nanocomposite hydrogel films as wound dressing materials. J Polym Res 2020. [DOI: 10.1007/s10965-020-02072-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Olad A, Nouri N, Eslamzadeh M. Polymer/zeolite nano-composite hydrogels as promising water reservoir materials: effect of clinoptilolite content on physicochemical properties. SN Appl Sci 2019. [DOI: 10.1007/s42452-019-0893-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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Olad A, Eslamzadeh M, Mirmohseni A. Physicochemical evaluation of nanocomposite hydrogels with covalently incorporated poly(vinyl alcohol) functionalized graphene oxide. J Appl Polym Sci 2019. [DOI: 10.1002/app.48025] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Ali Olad
- Laboratory of Polymer Composites, Department of Applied Chemistry, Faculty of ChemistryUniversity of Tabriz Tabriz Iran
| | - Morad Eslamzadeh
- Laboratory of Polymer Composites, Department of Applied Chemistry, Faculty of ChemistryUniversity of Tabriz Tabriz Iran
| | - Abdolreza Mirmohseni
- Laboratory of Polymer Research, Department of Applied Chemistry, Faculty of ChemistryUniversity of Tabriz Tabriz Iran
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Olad A, Bastanian M, Bakht Khosh Hagh H. Thermodynamic and Kinetic Studies of Removal Process of Hexavalent Chromium Ions from Water by Using Bio-conducting Starch–Montmorillonite/Polyaniline Nanocomposite. J Inorg Organomet Polym Mater 2019. [DOI: 10.1007/s10904-019-01152-w] [Citation(s) in RCA: 10] [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: 12/19/2022]
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21
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Mirmohseni A, Rastgar M, Olad A. PANI-chitosan-TiO2
ternary nanocomposite and its effectiveness on antibacterial and antistatic behavior of epoxy coating. J Appl Polym Sci 2019. [DOI: 10.1002/app.47629] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Abdolreza Mirmohseni
- Department of Applied Chemistry, Faculty of Chemistry; University of Tabriz; Tabriz 51666-16471 Iran
| | - Mortaza Rastgar
- Department of Applied Chemistry, Faculty of Chemistry; University of Tabriz; Tabriz 51666-16471 Iran
| | - Ali Olad
- Department of Applied Chemistry, Faculty of Chemistry; University of Tabriz; Tabriz 51666-16471 Iran
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Olad A, Doustdar F, Gharekhani H. Starch-based semi-IPN hydrogel nanocomposite integrated with clinoptilolite: Preparation and swelling kinetic study. Carbohydr Polym 2018; 200:516-528. [PMID: 30177193 DOI: 10.1016/j.carbpol.2018.08.014] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [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: 05/13/2018] [Revised: 07/15/2018] [Accepted: 08/04/2018] [Indexed: 11/26/2022]
Abstract
Semi-interpenetrating polymer network (semi-IPN) of starch-graft-poly(acrylic acid-co-acrylamide)/polyvinyl alcohol/clinoptilolite (starch-g-p(AA-co-AAm)/PVA/clino) superabsorbent nanocomposite was synthesized by free-radical graft co-polymerization technique in an aqueous solution. Taguchi method was used to optimize the synthesis reaction condition based on the equilibrium swelling capacity of the hydrogels. FTIR, XRD, and SEM analyses were used to study the chemical and structural properties of the hydrogel samples. The equilibrium swelling capacity of the semi-IPN superabsorbent nanocomposite (364.82 g/g) was higher than that of neat hydrogel (286.21 g/g) and in both of them water penetration into hydrogel network occurred through non-Fickian diffusion mechanism. Incorporation of clino into the polymeric matrix not only increased the equilibrium swelling capacity of the hydrogel, but also induced a substantial enhancement in its mechanical strength. Semi-IPN superabsorbent nanocomposite showed reasonable water absorbency under different loads, good salt and pH-sensitive swelling behavior, and better water retention capability, which make it potentially useful for hygiene products.
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Affiliation(s)
- Ali Olad
- Polymer Composite Research Laboratory, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran.
| | - Fatemeh Doustdar
- Polymer Composite Research Laboratory, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | - Hamed Gharekhani
- Polymer Composite Research Laboratory, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
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Nosrati R, Olad A, Maryami F. Visible-light induced anti-bacterial and self-cleaning waterborne polyacrylic coating modified with TiO2/polypyrrole nanocomposite; preparation and characterization. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.02.097] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Olad A, Pourkhiyabi M, Gharekhani H, Doustdar F. Semi-IPN superabsorbent nanocomposite based on sodium alginate and montmorillonite: Reaction parameters and swelling characteristics. Carbohydr Polym 2018; 190:295-306. [DOI: 10.1016/j.carbpol.2018.02.088] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 02/22/2018] [Accepted: 02/28/2018] [Indexed: 11/26/2022]
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Olad A, Zebhi H, Salari D, Mirmohseni A, Reyhani Tabar A. Slow-release NPK fertilizer encapsulated by carboxymethyl cellulose-based nanocomposite with the function of water retention in soil. Mater Sci Eng C Mater Biol Appl 2018; 90:333-340. [PMID: 29853099 DOI: 10.1016/j.msec.2018.04.083] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 04/06/2018] [Accepted: 04/27/2018] [Indexed: 01/31/2023]
Abstract
In this study, new slow release fertilizer encapsulated by superabsorbent nanocomposite was prepared by in-situ graft polymerization of sulfonated-carboxymethyl cellulose (SCMC) with acrylic acid (AA) in the presence of polyvinylpyrrolidone (PVP), silica nanoparticles and nitrogen (N), phosphorous (P), and potassium (K) (NPK) fertilizer compound. The prepared materials were characterized by FT-IR, XRD and scanning electron microscopy (SEM) techniques. The incorporation of NPK fertilizer into hydrogel nanocomposite network was verified by results of these analyses. Also, the swelling behavior in various pH and saline solutions as well as water retention capability of the prepared hydrogel nanocomposite was evaluated. The fertilizer release behavior of the NPK loaded hydrogel nanocomposite was in good agreement with the standard of Committee of European Normalization (CEN), indicating its excellent slow release property. These good characteristics revealed that the hydrogel nanocomposite fertilizer formulation can be practically used in agricultural and horticultural applications.
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Affiliation(s)
- Ali Olad
- Polymer Composite Research Laboratory, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran.
| | - Hamid Zebhi
- Polymer Composite Research Laboratory, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | - Dariush Salari
- Polymer Composite Research Laboratory, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | - Abdolreza Mirmohseni
- Polymer Composite Research Laboratory, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | - Adel Reyhani Tabar
- Department of Soil Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
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Gharekhani H, Olad A, Hosseinzadeh F. Iron/NPK agrochemical formulation from superabsorbent nanocomposite based on maize bran and montmorillonite with functions of water uptake and slow-release fertilizer. NEW J CHEM 2018. [DOI: 10.1039/c8nj01947a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Slow-release character of hydrogel nanocomposite makes it efficient in amending Fe nutritional disorder, fertilizer loss, and crops growth and yield.
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Affiliation(s)
- Hamed Gharekhani
- Polymer Composite Research Laboratory
- Department of Applied Chemistry
- Faculty of Chemistry
- University of Tabriz
- Tabriz
| | - Ali Olad
- Polymer Composite Research Laboratory
- Department of Applied Chemistry
- Faculty of Chemistry
- University of Tabriz
- Tabriz
| | - Farshad Hosseinzadeh
- Polymer Composite Research Laboratory
- Department of Applied Chemistry
- Faculty of Chemistry
- University of Tabriz
- Tabriz
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Olad A, Zebhi H, Salari D, Mirmohseni A, Reyhani Tabar A. Water retention and slow release studies of a salep-based hydrogel nanocomposite reinforced with montmorillonite clay. NEW J CHEM 2018. [DOI: 10.1039/c7nj03667a] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesized nanocomposites slowly release fertilizer which can act as a high-efficiency NPK fertilizer formulation.
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Affiliation(s)
- Ali Olad
- Polymer Composite Research Laboratory
- Department of Applied Chemistry
- Faculty of Chemistry
- University of Tabriz
- Tabriz
| | - Hamid Zebhi
- Polymer Composite Research Laboratory
- Department of Applied Chemistry
- Faculty of Chemistry
- University of Tabriz
- Tabriz
| | - Dariush Salari
- Polymer Composite Research Laboratory
- Department of Applied Chemistry
- Faculty of Chemistry
- University of Tabriz
- Tabriz
| | - Abdolreza Mirmohseni
- Polymer Composite Research Laboratory
- Department of Applied Chemistry
- Faculty of Chemistry
- University of Tabriz
- Tabriz
| | - Adel Reyhani Tabar
- Department of Soil Science
- Faculty of Agriculture
- University of Tabriz
- Tabriz
- Iran
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28
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Nosrati R, Olad A, Shakoori S. Preparation of an antibacterial, hydrophilic and photocatalytically active polyacrylic coating using TiO2 nanoparticles sensitized by graphene oxide. Materials Science and Engineering: C 2017; 80:642-651. [DOI: 10.1016/j.msec.2017.07.004] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Revised: 05/21/2017] [Accepted: 07/06/2017] [Indexed: 01/11/2023]
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29
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Gharekhani H, Olad A, Mirmohseni A, Bybordi A. Superabsorbent hydrogel made of NaAlg-g-poly(AA-co-AAm) and rice husk ash: Synthesis, characterization, and swelling kinetic studies. Carbohydr Polym 2017; 168:1-13. [DOI: 10.1016/j.carbpol.2017.03.047] [Citation(s) in RCA: 128] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Revised: 03/10/2017] [Accepted: 03/14/2017] [Indexed: 11/30/2022]
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30
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Olad A, Gharekhani H, Mirmohseni A, Bybordi A. Superabsorbent nanocomposite based on maize bran with integration of water-retaining and slow-release NPK fertilizer. Adv Polym Technol 2017. [DOI: 10.1002/adv.21825] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Ali Olad
- Department of Applied Chemistry; Faculty of Chemistry; Polymer Composite Research Laboratory; University of Tabriz; Tabriz Iran
| | - Hamed Gharekhani
- Department of Applied Chemistry; Faculty of Chemistry; Polymer Composite Research Laboratory; University of Tabriz; Tabriz Iran
| | - Abdolreza Mirmohseni
- Department of Applied Chemistry; Faculty of Chemistry; Polymer Composite Research Laboratory; University of Tabriz; Tabriz Iran
| | - Ahmad Bybordi
- Soil and Water Research Department; East Azarbaijan Agricultural and Natural Resources Research Center; AREEO; Tabriz Iran
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31
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Olad A, Gharekhani H. Study on the capacitive performance of polyaniline/activated carbon nanocomposite for supercapacitor application. J Polym Res 2016. [DOI: 10.1007/s10965-016-1031-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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32
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Rashidzadeh A, Olad A, Hejazi MJ. Controlled Release Systems Based on Intercalated Paraquat onto Montmorillonite and Clinoptilolite Clays Encapsulated with Sodium Alginate. Adv Polym Technol 2015. [DOI: 10.1002/adv.21597] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Azam Rashidzadeh
- Polymer Composite Research Laboratory; Department of Applied Chemistry; Faculty of Chemistry; University of Tabriz; Tabriz Iran
| | - Ali Olad
- Polymer Composite Research Laboratory; Department of Applied Chemistry; Faculty of Chemistry; University of Tabriz; Tabriz Iran
| | - Mir Jalil Hejazi
- Department of Plant Protection; Faculty of Agriculture; University of Tabriz; Tabriz Iran
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Rashidzadeh A, Olad A. Slow-released NPK fertilizer encapsulated by NaAlg-g-poly(AA-co-AAm)/MMT superabsorbent nanocomposite. Carbohydr Polym 2014; 114:269-278. [DOI: 10.1016/j.carbpol.2014.08.010] [Citation(s) in RCA: 151] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2014] [Revised: 07/07/2014] [Accepted: 08/01/2014] [Indexed: 11/30/2022]
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Babazadeh M, Zalloi F, Olad A. Fabrication of Conductive Polyaniline Nanocomposites Based on Silica Nanoparticles via In-Situ Chemical Oxidative Polymerization Technique. ACTA ACUST UNITED AC 2014. [DOI: 10.1080/15533174.2013.818687] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Mirzaagha Babazadeh
- Department of Chemistry, College of Science, Tabriz Branch, Islamic Azad University, Tabriz, Iran
| | - Fatemeh Zalloi
- Department of Chemistry, College of Science, Tabriz Branch, Islamic Azad University, Tabriz, Iran
| | - Ali Olad
- Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
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Farshi Azhar F, Olad A, Salehi R. Fabrication and characterization of chitosan–gelatin/nanohydroxyapatite–polyaniline composite with potential application in tissue engineering scaffolds. Des Monomers Polym 2014. [DOI: 10.1080/15685551.2014.907621] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Affiliation(s)
- Fahimeh Farshi Azhar
- Faculty of Chemistry, Polymer Composite Research Laboratory, Department of Applied Chemistry, University of Tabriz, Tabriz, Iran
| | - Ali Olad
- Faculty of Chemistry, Polymer Composite Research Laboratory, Department of Applied Chemistry, University of Tabriz, Tabriz, Iran
| | - Roya Salehi
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- School of Advanced Medical Science, Tabriz University of Medical Sciences, Tabriz, Iran
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Rashidzadeh A, Olad A, Salari D, Reyhanitabar A. On the preparation and swelling properties of hydrogel nanocomposite based on Sodium alginate-g-Poly (acrylic acid-co-acrylamide)/Clinoptilolite and its application as slow release fertilizer. J Polym Res 2014. [DOI: 10.1007/s10965-013-0344-9] [Citation(s) in RCA: 127] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Rashidzadeh A, Olad A, Salari D, Jalil Hejazi M. On the encapsulation of natural pesticide using polyvinyl alcohol/alginate-montmorillonite nanocomposite for controlled release application. POLYM ENG SCI 2013. [DOI: 10.1002/pen.23823] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Azam Rashidzadeh
- Department of Applied Chemistry, Polymer Composite Research Laboratory, Faculty of Chemistry; University of Tabriz; Tabriz Iran
| | - Ali Olad
- Department of Applied Chemistry, Polymer Composite Research Laboratory, Faculty of Chemistry; University of Tabriz; Tabriz Iran
| | - Dariush Salari
- Department of Applied Chemistry; Petroleum Research Laboratory; Faculty of Chemistry; University of Tabriz; Tabriz Iran
| | - Mir Jalil Hejazi
- Department of Plant Protection; Faculty of Agriculture; University of Tabriz; Tabriz Iran
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Olad A, Azhar FF, Shargh M, Jharfi S. Application of response surface methodology for modeling of reactive dye removal from solution using starch-montmorillonite/polyaniline nanocomposite. POLYM ENG SCI 2013. [DOI: 10.1002/pen.23697] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Ali Olad
- Faculty of Chemistry; Department of Applied Chemistry; Polymer Composite Research Laboratory; University of Tabriz; Tabriz Iran
| | - Fahimeh Farshi Azhar
- Faculty of Chemistry; Department of Applied Chemistry; Polymer Composite Research Laboratory; University of Tabriz; Tabriz Iran
| | - Maryam Shargh
- Faculty of Chemistry; Department of Applied Chemistry; Polymer Composite Research Laboratory; University of Tabriz; Tabriz Iran
| | - Sanaz Jharfi
- Faculty of Chemistry; Department of Applied Chemistry; Polymer Composite Research Laboratory; University of Tabriz; Tabriz Iran
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Olad A, Nosrati R. Use of response surface methodology for optimization of the photocatalytic degradation of ampicillin by ZnO/polyaniline nanocomposite. Res Chem Intermed 2013. [DOI: 10.1007/s11164-013-1278-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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40
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Olad A, Rashidzadeh A, Amini M. Preparation of Polypyrrole Nanocomposites with Organophilic and Hydrophilic Montmorillonite and Investigation of Their Corrosion Protection on Iron. Adv Polym Technol 2013. [DOI: 10.1002/adv.21337] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ali Olad
- Polymer Composite Research Laboratory; Department of Applied Chemistry; Faculty of Chemistry; University of Tabriz; Tabriz; Iran
| | - Azam Rashidzadeh
- Polymer Composite Research Laboratory; Department of Applied Chemistry; Faculty of Chemistry; University of Tabriz; Tabriz; Iran
| | - Maryam Amini
- Polymer Composite Research Laboratory; Department of Applied Chemistry; Faculty of Chemistry; University of Tabriz; Tabriz; Iran
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41
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Olad A, Azar RH, Babaluo AA. Investigation on the Mechanical and Thermal Properties of Intercalated Epoxy/Layered Silicate Nanocomposites. INT J POLYM MATER PO 2012. [DOI: 10.1080/00914037.2011.617333] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Rashidzadeh A, Olad A, Ahmadi S. Preparation and characterization of polypyrrole/clinoptilolite nanocomposite with enhanced electrical conductivity by surface polymerization method. POLYM ENG SCI 2012. [DOI: 10.1002/pen.23346] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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44
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Nosrati R, Olad A, Maramifar R. Degradation of ampicillin antibiotic in aqueous solution by ZnO/polyaniline nanocomposite as photocatalyst under sunlight irradiation. Environ Sci Pollut Res Int 2012; 19:2291-2299. [PMID: 22270755 DOI: 10.1007/s11356-011-0736-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2011] [Accepted: 12/29/2011] [Indexed: 05/31/2023]
Abstract
PURPOSE AND METHOD ZnO/polyaniline nanocomposite in core-shell structure was prepared by the synthesis and adsorption of polyaniline chains on the structure of ZnO nanoparticles. Fourier transform infrared and ultraviolet-visible (UV-Vis) spectroscopy, X-ray diffraction patterns, field emission scanning electron microscopy, and transmission electron microscopy were used to characterize the composition and structure of the nanocomposite. The nanocomposite was used as an active photocatalyst for photodegradation and removal of ampicillin in aqueous solution. RESULTS UV-Vis spectroscopy studies showed that ZnO/polyaniline nanocomposite absorbs visible light irradiation as well as ultraviolet spectrum, and therefore, it can be photoactivated under visible and ultraviolet lights. The photocatalytic activity of ZnO/polyaniline nanocomposite in degradation of ampicillin molecules in aqueous solution under natural sunlight irradiation was evaluated and compared with that of ZnO nanoparticles and pristine polyaniline. The ZnO/polyaniline core-shell nanocomposite exhibited higher photocatalytic activity compared to ZnO nanoparticles and pristine polyaniline. The effect of operating conditions (pH, ZnO/polyaniline nanocomposite dosage, and ampicillin concentration) in the photocatalytic degradation of ampicillin using ZnO/polyaniline nanocomposite was investigated. The optimum conditions for maximum efficiency of ampicillin degradation under 120 min sunlight irradiation were found as 10 mg L(-1) dosage of ZnO/polyaniline nanocomposite, ampicillin concentration of 4.5 mg L(-1), and solution pH = 5. Under optimum operating conditions, degradation efficiency was reached to 41% after 120 min of exposure to the sunlight irradiation.
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Affiliation(s)
- Rahimeh Nosrati
- Polymer Composite Research Laboratory, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
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Olad A, Farshi F, Ettehadi J. Electrocatalytic reduction of nitrate ions from water using polyaniline nanofibers modified gold electrode. Water Environ Res 2012; 84:144-149. [PMID: 22515064 DOI: 10.2175/106143011x13225991083604] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Polyaniline (PANI) nanofibers were electrochemically synthesized on gold electrode using ethanol as soft template by the cyclic voltammetry technique. The PANI nanofibers were characterized by Fourier transform infrared spectroscopy, UV-visible spectroscopy, and scanning electron microscopy. Linear sweep voltammetry was used to investigate electrocatalytic activity of the PANI nanofibers modified electrode toward the reduction of nitrate ions. Results showed that the electroreduction process strongly depends on the applied potential. At the potential value of about -0.8 V vs Ag/AgCl, the electroreduction of nitrate anions to nitrite anions was identified as the rate-determining step of the electroreduction process. In the potential range of -0.8 to -1.0 V, reduction of nitrite to hydroxylamine occurs, followed by the reduction to ammonia. At potentials more negative than -1.0 V, nitrite is directly reduced to ammonia. This study demonstrates the effectiveness of PANI nanofibers modified electrode in the electroreduction of nitrate ions compared to traditional reduction methods.
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Affiliation(s)
- Ali Olad
- Polymer Composites Research Laboratory, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran.
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Babazadeh M, Rezazad Gohari F, Olad A. Characterization and physical properties investigation of conducting polypyrrole/TiO2 nanocomposites prepared through a one-step “in situ” polymerization method. J Appl Polym Sci 2011. [DOI: 10.1002/app.34689] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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47
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Olad A, Nosrati R. Preparation, characterization, and photocatalytic activity of polyaniline/ZnO nanocomposite. Res Chem Intermed 2011. [DOI: 10.1007/s11164-011-0349-0] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Amani-Ghadim A, Aber S, Olad A, Ashassi-Sorkhabi H. Influence of anions on Reactive Red 43 removal in electrochemical coagulation process. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2010.10.089] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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49
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Samani MR, Borghei SM, Olad A, Chaichi MJ. Removal of chromium from aqueous solution using polyaniline--poly ethylene glycol composite. J Hazard Mater 2010; 184:248-254. [PMID: 20813454 DOI: 10.1016/j.jhazmat.2010.08.029] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2010] [Revised: 07/29/2010] [Accepted: 08/07/2010] [Indexed: 05/29/2023]
Abstract
The adsorption of chromium compounds from solutions by a composite of polyaniline/poly ethylene glycol (PANi/PEG) was investigated in this study. Experiments were conducted in batch mode under various operational conditions including agitation time, solution pH, PANi/PEG dose and initial concentration of chromium salts. Results showed that concentration of PEG at synthesizing stage has a significant effect on the capacity of produced composite for removal of chromium. Morphologically, PANi/PEG composite is closely dependent on the concentration of PEG. Maximum removal of hexavalent chromium was experienced when 2g/L of PEG was used in synthesis of PANi/PEG. Removal of hexavalent chromium by PANi/PEG composite included surface adsorption and reduction reaction. The optimum pH was 5 and the equilibrium time for hexavalent chromium removal was about 30 min. Investigation of the isothermal characteristics showed that chromium adsorption by PANi/PEG composite was in high accordance with Langmuir's isotherm.
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Affiliation(s)
- Majid Riahi Samani
- Department of Environment and Energy, Science and Research Branch, Islamic Azad University, Tehran, Iran.
| | - Seyed Mehdi Borghei
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran
| | - Ali Olad
- Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | - Mohammad Javad Chaichi
- Department of Analytical Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran
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