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In vitro‐studies of adenosine‐ β‐cyclodextrin inclusion complexes loaded into chitosan, sodium alginate and bentonite‐based nanocomposite optimized by RSM as a sustained release system. J Appl Polym Sci 2022. [DOI: 10.1002/app.52706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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2
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Surface Response Analysis for the Optimization of Mechanical and Thermal Properties of Polypropylene Composite Drawn Fibers with Talc and Carbon Nanotubes. Polymers (Basel) 2022; 14:polym14071329. [PMID: 35406204 PMCID: PMC9002490 DOI: 10.3390/polym14071329] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/18/2022] [Accepted: 03/22/2022] [Indexed: 02/05/2023] Open
Abstract
A large portion of the produced Polypropylene (PP) is used in the form of fibers. In this industrially oriented study, the development of composite PP drawn fibers was investigated. Two types of fillers were used (ultra-fine talc and single-wall carbon nanotubes). Optimization of the thermal and mechanical properties of the produced composite drawn fibers was performed, based on the Box-Behnken design of experiments method (surface response analysis). The effect of additives, other than the filler, but typical in industrial applications, such as an antioxidant and a common compatibilizer, was investigated. The drawing ratio, the filler, and the compatibilizer or the antioxidant content were selected as design variables, whereas the tensile strength and the onset decomposition temperature were set as response variables. Fibers with very high tensile strength (up to 806 MPa) were obtained. The results revealed that the maximization of both the tensile strength and the thermal stability was not feasible for composites with talc due to multiple interactions among the used additives (antioxidant, compatibilizer, and filler). Additionally, it was found that the addition of talc in the studied particle size improved the mechanical strength of fibers only if low drawing ratios were used. On the other hand, the optimization targeting maximization of both tensile strength and thermal stability was feasible in the case of SWCNT composite fibers. It was found that the addition of carbon nanotubes improved the tensile strength; however, such improvement was rather small compared with the tremendous increase of tensile strength due to drawing.
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Optimization of Thermal and Mechanical Properties of Polypropylene-Wollastonite Composite Drawn Fibers Based on Surface Response Analysis. Polymers (Basel) 2022; 14:polym14050924. [PMID: 35267749 PMCID: PMC8912407 DOI: 10.3390/polym14050924] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 02/15/2022] [Accepted: 02/22/2022] [Indexed: 11/17/2022] Open
Abstract
The thermal and mechanical properties of polypropylene-wollastonite composite drawn fibers were optimized via experiments selected with the Box-Behnken approach. The drawing ratio, the filler and the compatibilizer content were chosen as design variables, while the tensile strength, the melting enthalpy and the onset decomposition temperature were set as response variables. Drawn fibers with tensile strength up to 535 MPa were obtained. Results revealed that the drawing ratio is the most important factor for the enhancement of tensile strength, followed by the filler content. All the design variables slightly affected the melting temperature and the crystallinity of the matrix. Also, it was found that the addition of polypropylene grafted with maleic anhydride as compatibilizer has a multiple effect on the final properties, i.e., it induces the dispersion of both the antioxidant and the filler, tending to increase thermal stability and tensile strength, while, on the same time, deteriorates mechanical and thermal properties due to its lower molecular weight and thermal stability. Such behavior does not allow for simultaneous maximization of thermal stability and tensile strength. Optimization based on a compromise, i.e., targeting maximization of tensile strength and onset decomposition temperature higher than 300 °C, yields high desirability values and predictions in excellent agreement with verification experiments.
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Shaikh MAJ, Gilhotra R, Pathak S, Mathur M, Iqbal HMN, Joshi N, Gupta G. Current update on psyllium and alginate incorporate for interpenetrating polymer network (IPN) and their biomedical applications. Int J Biol Macromol 2021; 191:432-444. [PMID: 34560150 DOI: 10.1016/j.ijbiomac.2021.09.115] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 09/10/2021] [Accepted: 09/17/2021] [Indexed: 02/05/2023]
Abstract
Natural polysaccharides and their designed structures are extremely valuable due to their intrinsic pharmacological properties and are also used as pharmaceutical aids. These naturally occurring polysaccharides (e.g., psyllium and alginate) are gaining popularity for their use in the preparation of interpenetrating polymer network (IPN) materials with improved swelling ability, biodegradability, stability, non-cytotoxic, biocompatibility, and cost-effectiveness. IPN is prepared sequentially or simultaneously by microwave irradiation, casting evaporation, emulsification cross-linking, miniemulsion/inverse miniemulsion technique, and radiation polymerization methods. In addition, the prepared IPNs have has been extensively characterized using various analytical and imaging techniques before sustainable deployment for multiple applications. Regardless of these multi-characteristic attributes, the current literature lacks a detailed overview of the biomedical aspects of psyllium, alginate, and their engineered IPN structures. Herein, we highlight the unique synthesis, structural, and biomedical considerations of psyllium, alginate, and engineered IPN structures. In this review, a wide range of biomedical applications, such as role as a drug carrier for sustain delivery, wound dressing, tissue engineering, and related miscellaneous application of psyllium, alginate, and their IPN structures described with appropriate examples. Further research will be carried out for the development of IPN using psyllium and alginate, which will be a smart and active carrier for drugs used in the treatment of life-threatening diseases due to their inherent pharmacological potential such as hypoglycemic, immunomodulatory, antineoplastic, and antimicrobial.
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Affiliation(s)
| | - Ritu Gilhotra
- School of Pharmacy, Suresh GyanVihar University, Jagatpura 302017, Mahal Road, Jaipur, India
| | - Sachchidanand Pathak
- School of Pharmacy, Suresh GyanVihar University, Jagatpura 302017, Mahal Road, Jaipur, India
| | - Manas Mathur
- School of Agriculture, Suresh GyanVihar University, Mahal Road, Jagatpura, Jaipur, India
| | - Hafiz M N Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, Monterrey 64849, Mexico.
| | - Navneet Joshi
- Department of Biosciences, School of Liberal Arts and Sciences, Mody University of Science and Technology, Lakshmangarh-332311, District-Sikar, Rajasthan, India.
| | - Gaurav Gupta
- School of Pharmacy, Suresh GyanVihar University, Jagatpura 302017, Mahal Road, Jaipur, India; Department of Pharmacology, Saveetha Dental College, Saveetha University, Chennai, India.
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Disli E, Ozturk D, Aladağ E. Utilizing mining dam bottom sludge as a novel adsorbent for AuO removal from wastewaters: Batch and column studies. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116644] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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6
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Chemically modified chitosan‑sodium alginate as chemo-sensor adsorbent for the detection of picric acid and removal of biebrich scarlet. Int J Biol Macromol 2020; 147:582-594. [DOI: 10.1016/j.ijbiomac.2020.01.090] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 01/03/2020] [Accepted: 01/09/2020] [Indexed: 02/06/2023]
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7
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Kaur K, Jindal R, Saini D. Synthesis, optimization and characterization of PVA-co-poly(methacrylic acid) green adsorbents and applications in environmental remediation. Polym Bull (Berl) 2019. [DOI: 10.1007/s00289-019-02900-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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8
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RSM-CCD optimized sodium alginate/gelatin based ZnS-nanocomposite hydrogel for the effective removal of biebrich scarlet and crystal violet dyes. Int J Biol Macromol 2019; 129:214-226. [DOI: 10.1016/j.ijbiomac.2019.02.034] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2018] [Revised: 02/04/2019] [Accepted: 02/05/2019] [Indexed: 02/02/2023]
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9
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Kaith BS, Shanker U, Gupta B. One-pot green synthesis of polymeric nanocomposite: Biodegradation studies and application in sorption-degradation of organic pollutants. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 234:345-356. [PMID: 30639858 DOI: 10.1016/j.jenvman.2018.12.117] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 12/30/2018] [Accepted: 12/31/2018] [Indexed: 06/09/2023]
Abstract
The research work proposes the synthesis of a nanocomposite hydrogel which is a dual combination of binary interpenetrating network (BIPN) and bismuth ferrite nanoparticles. BIPN synthesized from binary graft copolymer (BGC) used as starting material. The cross-linked network of BGC is interpenetrating the newly synthesized cross-linked network of poly(acrylic acid) and the product is named as BIPN. Binary graft copolymer had been synthesized from grafting of guggul aqueous extract with copolymeric chains of acrylamide (primary monomer) and acrylic acid (secondary monomer) crosslinked by N,N'-methylene bisacrylamide (MBA). The maximum percentage swelling was evaluated for BGC through optimization of various reaction parameters: amount of water, binary ratio of acrylamide to acrylic acid, concentrations of MBA, ammonium persulphate, pH, temperature and time. Considering pre-optimized parameters for BGC synthesis, BIPN formation required optimization of only acrylic acid. Maximum percentage swelling obtained was 1497.79% and 308.15% for BGC and BIPN, respectively. Maximum percentage biodegradation of 90.64% and 82.38% were calculated for BGC and BIPN, respectively using composting method. Degradation efficiency of brilliant blue (BB) and fuchsin basic (FB) dyes was in the order: Nanocomposite ≫ BIPN > BGC. Maximum percentage degradation observed in case of nanocomposite was 94.1% and 99.3% in sunlight for BB and FB, respectively. The interaction of dyes with the nanocomposite involved mainly ionic interactions. The adsorption models Freundlich and Langmuir were applicable to overall adsorption and degradation process of BB and FB, respectively. Maximum adsorption capacities corresponding to minimum concentration i.e. 10 mg L-1 for BB and FB were calculated as 0.409 mg g-1 and 0.439 mg g-1, respectively. Second order and first order kinetics were found to be suitable for BB and FB adsorption-degradation pathways, respectively. Intraparticle diffusion mechanism was favorable to both dyes and adsorption followed three steps. Gas chromatography coupled with mass spectrometric analysis could give the degraded products which was helpful in drawing degradation pathway. The degradation process involved active radical species (O2-., OH.) and they carry out oxidation-reduction reactions on dyes to give decolorized solution containing mineral ions.
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Affiliation(s)
- Balbir Singh Kaith
- Department of Chemistry, Dr. B R Ambedkar National Institute of Technology, Jalandhar Punjab, India
| | - Uma Shanker
- Department of Chemistry, Dr. B R Ambedkar National Institute of Technology, Jalandhar Punjab, India
| | - Bhuvanesh Gupta
- Department of Textile Technology, Indian Institute of Technology, Jalandhar Punjab, India
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Priya, Singh Kaith B, Shanker U, Gupta B. WITHDRAWN: Surface response technique optimized green synthesis of polymeric nanocomposite for adsorptive uptake-sunlight/UV-visible irradiated mineralization of fuchsin basic. J Adv Res 2019. [DOI: 10.1016/j.jare.2019.03.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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11
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Efficient capture of eosin yellow and crystal violet with high performance xanthan-acacia hybrid super-adsorbent optimized using response surface methodology. Colloids Surf B Biointerfaces 2019; 175:314-323. [DOI: 10.1016/j.colsurfb.2018.12.017] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 12/07/2018] [Accepted: 12/07/2018] [Indexed: 11/22/2022]
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12
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Sharma AK, Priya, Kaith BS, Sharma N, Bhatia JK, Tanwar V, Panchal S, Bajaj S. Selective removal of cationic dyes using response surface methodology optimized gum acacia-sodium alginate blended superadsorbent. Int J Biol Macromol 2019; 124:331-345. [DOI: 10.1016/j.ijbiomac.2018.11.213] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Revised: 11/22/2018] [Accepted: 11/23/2018] [Indexed: 11/29/2022]
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13
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Sabbagh F, Muhamad II, Nazari Z, Mobini P, Taraghdari SB. From formulation of acrylamide-based hydrogels to their optimization for drug release using response surface methodology. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 92:20-25. [DOI: 10.1016/j.msec.2018.06.022] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 04/30/2018] [Accepted: 06/11/2018] [Indexed: 01/19/2023]
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14
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Exploring RSM-CCD-optimized chitosan-/gelatin-based hybrid polymer network containing CPM–β-CD inclusion complexes as controlled drug delivery systems. Polym Bull (Berl) 2018. [DOI: 10.1007/s00289-018-2555-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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15
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RSM-CCD optimized In-air synthesis of photocatalytic nanocomposite: Application in removal-degradation of toxic brilliant blue. REACT FUNCT POLYM 2018. [DOI: 10.1016/j.reactfunctpolym.2018.07.016] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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16
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Dil EA, Ghaedi M, Asfaram A, Bazrafshan AA. Ultrasound wave assisted adsorption of congo red using gold-magnetic nanocomposite loaded on activated carbon: Optimization of process parameters. ULTRASONICS SONOCHEMISTRY 2018; 46:99-105. [PMID: 29739517 DOI: 10.1016/j.ultsonch.2018.02.040] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 01/26/2018] [Accepted: 02/24/2018] [Indexed: 05/15/2023]
Abstract
In this study, gold-magnetic nanocomposite in the presence of ultrasound wave assisted was synthesized and loaded on activated carbon (Au-Fe3O4-NCs-AC) by simple, fast and low-cost process. This novel material was applied for ultrasound assisted adsorption of congo red (CR) as model of toxic and even carcinogenic substance from aqueous solution. The detail of morphology and identity of Au-Fe3O4-AC was characterized by SEM and TEM techniques and correlation among response to variables such as pH (2-10), adsorbent mass (0.005-0.025 g), initial CR concentration (10-30 mg L-1) and ultrasound time (2-6 min) was investigated by response surface methodology (RSM) under central composite design (CCD). Analysis of variance (ANOVA) exhibit a high R2 value of 0.999 and confirm suitability of constructed second-order regression model for excellent evaluation and prediction of the experimental data. The interaction and main factor and optimum conditions of the under study process were determined from response surface plots based on desirability function. The maximum CR adsorption were achieved at pH of 4, 15 mg L-1 of CR, 0.017 g of Au-Fe3O4-AC and 5 min sonication which owing to 99.49% removal efficiency is highly recommended for future CR removal from different matrixes. Adsorption kinetic follow second-order rate expression in combination to inter particle diffusion and equilibrium adsorption data best represented by the Langmuir isotherm with maximum mono-layer adsorption capacity of 43.88 mg g-1.
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Affiliation(s)
| | | | - Arash Asfaram
- Medicinal Plants Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
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17
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Kaur S, Jindal R, Kaur Bhatia J. Synthesis and RSM-CCD optimization of microwave-induced green interpenetrating network hydrogel adsorbent based on gum copal for selective removal of malachite green from waste water. POLYM ENG SCI 2018. [DOI: 10.1002/pen.24851] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Savneet Kaur
- Department of Chemistry; Dr. B.R. Ambedkar National Institute of Technology; Jalandhar Punjab 144011
| | - Rajeev Jindal
- Department of Chemistry; Dr. B.R. Ambedkar National Institute of Technology; Jalandhar Punjab 144011
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Vieira J, Soares L, Froes-Silva R. Comparing chemometric and Langmuir isotherm for determination of maximum capacity adsorption of arsenic by a biosorbent. Microchem J 2018. [DOI: 10.1016/j.microc.2017.11.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Chaudhary S, Sharma J, Kaith BS, Yadav S, Sharma AK, Goel A. Gum xanthan-psyllium-cl-poly(acrylic acid-co-itaconic acid) based adsorbent for effective removal of cationic and anionic dyes: Adsorption isotherms, kinetics and thermodynamic studies. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 149:150-158. [PMID: 29156307 DOI: 10.1016/j.ecoenv.2017.11.030] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Revised: 11/04/2017] [Accepted: 11/10/2017] [Indexed: 06/07/2023]
Abstract
The present work highlights the synthesis of the adsorbent based on Gum xanthan-psyllium hybrid backbone graft co-polymerized with polyacrylic acid-co-polyitaconic acid chains for the rapid sequestration of auramine-O (Aur-O) and eriochrome black-T (EBT) dyes from the aqueous fluid. The excellent dye removal efficiency of 90.53% for EBT and 95.63% for Aur-O was found at initial dye concentration of 30mgL-1 (EBT) and 15 mgL-1 (Aur-O) 40mL-1 with an adsorbent dose of 600mg within time duration of 5h and 323K temp. The adsorption isotherm data fitted well with Langmuir isotherm and Freundlich isotherm for Aur-O and EBT dyes (R2 ≥ 0.90), respectively. The adsorption kinetics depicted that pseudo-second order kinetics was followed simultaneously with intra-particle diffusion for both the dyes. Thermodynamic parameters such as ΔG°, ΔH° and ΔS° were also calculated and confirmed the spontaneity, randomness and endothermic nature of the adsorption process. Further, the adsorbent exhibited good recyclability efficiency for the capture of Aur-O and EBT from aqueous solution with minimal activity decline after six and three cycles, respectively. So, the synthesized adsorbent could be used successfully by the textile industries for the treatment of dye contaminated water with excellent competency.
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Affiliation(s)
- Sukriti Chaudhary
- Department of Chemistry, Dr. B. R. Ambedkar National Institute of Technology Jalandhar, 144011 Punjab, India.
| | - Jitender Sharma
- Department of Chemistry, Dr. B. R. Ambedkar National Institute of Technology Jalandhar, 144011 Punjab, India.
| | - Balbir S Kaith
- Department of Chemistry, Dr. B. R. Ambedkar National Institute of Technology Jalandhar, 144011 Punjab, India.
| | - Satender Yadav
- Department of Chemistry, Dr. B. R. Ambedkar National Institute of Technology Jalandhar, 144011 Punjab, India.
| | - Ashish Kumar Sharma
- Department of Chemistry, Dr. B. R. Ambedkar National Institute of Technology Jalandhar, 144011 Punjab, India.
| | - Aayushi Goel
- Department of Chemistry, Dr. B. R. Ambedkar National Institute of Technology Jalandhar, 144011 Punjab, India.
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20
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Characterization of Separation and Purification Technology and Identification of Taurine from the Bovine Liver. FOOD ANAL METHOD 2017. [DOI: 10.1007/s12161-017-1012-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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21
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Controlled biofertilizer release kinetics and moisture retention in gum xanthan-based IPN. IRANIAN POLYMER JOURNAL 2017. [DOI: 10.1007/s13726-017-0539-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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22
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Sharma J, Chadha AS, Pruthi V, Anand P, Bhatia J, Kaith BS. Sequestration of dyes from artificially prepared textile effluent using RSM-CCD optimized hybrid backbone based adsorbent-kinetic and equilibrium studies. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2017; 190:176-187. [PMID: 28049087 DOI: 10.1016/j.jenvman.2016.12.065] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 10/28/2016] [Accepted: 12/26/2016] [Indexed: 06/06/2023]
Abstract
Present work reports the synthesis of semi-Interpenetrating Network Polymer (semi-IPN) using Gelatin-Gum xanthan hybrid backbone and polyvinyl alcohol in presence of l-tartaric acid and ammonium persulphate as the crosslinker-initiator system. Reaction parameters were optimized with Response Surface Methodology (RSM) in order to maximize the percent gel fraction of the synthesized sample. Polyvinyl alcohol, l-Tartaric acid, ammonium persulphate, reaction temperature, time and pH of the reaction medium were found to make an impact on the percentage gel fraction obtained. Incorporation of polyvinyl alcohol chains onto hybrid backbone and crosslinking between the different polymer chains were confirmed through techniques like FTIR, SEM-EDX and XRD. Semi-IPN was found to be very efficient in the removal of cationic dyes rhodamine-B (70%) and auramine-O (63%) from a mixture with an adsorbent dose of 700 mg, initial concentration of rhodamine-B 6 mgL-1 and auramine-O 26 mgL-1, at an time interval of 22-25 h and 30 °C temp. Further to determine the nature of adsorption Langmuir and Freundlich adsorption isotherm models were studied and it was found that Langmuir adsorption isotherm was the best fit model for the removal of mixture of dyes. Kinetic studies for the sorption of dyes favored the reaction mechanism to occur via a pseudo second order pathway with R2 value about 0.99.
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Affiliation(s)
- Jitender Sharma
- Research and Development Laboratory, Department of Chemistry, Dr B.R. Ambedkar National Institute of Technology, Jalandhar, Punjab, India.
| | - Amritpal Singh Chadha
- Research and Development Laboratory, Department of Chemistry, Dr B.R. Ambedkar National Institute of Technology, Jalandhar, Punjab, India.
| | - Vaishali Pruthi
- Research and Development Laboratory, Department of Chemistry, Dr B.R. Ambedkar National Institute of Technology, Jalandhar, Punjab, India.
| | - Prerna Anand
- Research and Development Laboratory, Department of Chemistry, Dr B.R. Ambedkar National Institute of Technology, Jalandhar, Punjab, India.
| | - Jaspreet Bhatia
- Department of Chemistry, D.A.V College, Jalandhar, Punjab, India.
| | - B S Kaith
- Research and Development Laboratory, Department of Chemistry, Dr B.R. Ambedkar National Institute of Technology, Jalandhar, Punjab, India.
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Gopi S, Balakrishnan P, Pius A, Thomas S. Chitin nanowhisker (ChNW)-functionalized electrospun PVDF membrane for enhanced removal of Indigo carmine. Carbohydr Polym 2017; 165:115-122. [PMID: 28363530 DOI: 10.1016/j.carbpol.2017.02.046] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 01/29/2017] [Accepted: 02/13/2017] [Indexed: 11/24/2022]
Abstract
In this study, an active functional adsorbent membrane developed by combining both hydrophilic bio polymer filler such as chitin nanowhiskers (ChNW) which contains two functional groups and a hydrophobic polymer matrix such as polyvinylidene fluoride (PVDF) using electrospinning technique. Here ChNW were successfully extracted by excluding proteins and mineral and well characterized using FTIR, XRD, SEM and TEM. The optimized combination of PVDF/ChNW (15%:1%) membrane was fabricated and well characterized using SEM, water contact angle and FTIR spectroscopy. There was a remarkable difference in contact angle observed for PVDF/ChNW (22.72°) compared to neat PVDF (93.1°) membrane. Ultimately the membrane used for indigo carmine (IC) adsorption and an enhanced removal efficiency (88.9%) and adsorption capacity (72.6mgg-1) were observed compared to neat PVDF. In the future, the overall idea can make leads to various applications such as proteins, virus and hormones adsorption from the contaminated sources.
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Affiliation(s)
- Sreerag Gopi
- Department of Chemistry, Gandhigram Rural Institute, Deemed University, Gandhigram, Dindigul District, 624302, Tamil Nadu, India
| | - Preetha Balakrishnan
- School of Chemical Sciences, Mahatma Gandhi University, Kottayam 686560, Kerala, India; International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam 686560, Kerala, India
| | - Anitha Pius
- Department of Chemistry, Gandhigram Rural Institute, Deemed University, Gandhigram, Dindigul District, 624302, Tamil Nadu, India.
| | - Sabu Thomas
- School of Chemical Sciences, Mahatma Gandhi University, Kottayam 686560, Kerala, India; International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam 686560, Kerala, India
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