ساخت و شناسایی نانوکامپوزیت دکسترین- پیوند- پلی‌پیرول- گرافن اکسید برای حذف مؤثر (II) Pb و رنگینه آبی متیلن از محلول‌های آبی

نوع مقاله : پژوهشی

نویسندگان

1 1- دامغان، دانشگاه دامغان، دانشکده شیمی، صندوق پستی 41167-36719

2 بابلسر، دانشگاه مازندران، دانشکده شیمی، گروه شیمی آلی، صندوق پستی 95447-47416

چکیده

در پژوهش حاضر، نانوکامپوزیت دکسترین-پیوند-پلی‌پیرول-گرافن اکسید (PDGP@GO) با استفاده از (1) پلیمرشدن درجا و (2) مخلوط‌کردن مستقیم پلیمر دکسترین-پیوند- پلی‌پیرول و نانوذرات گرافن اکسید در محلول سنتز شد. نانوکامپوزیت‌های تهیه شده با روش طیف‌سنجی زیرقرمز تبدیل فوریه (FTIR) شناسایی شدند. شکل‌شناسی سطح و ساختار نانوکامپوزیت‌ها با روش‌های پراش پرتو X و میکروسکوپی‌های الکترونی پویشی (SEM) و نیروی اتمی (AFM) بررسی شدند. قابلیت حذف یون فلزی (II)Pb و رنگینه آبی متیلن با استفاده از نانوکامپوزیت‌های سنتز شده بررسی شد. اثر pH، مقدار جاذب، زمان تماس و غلظت آلاینده بر مقدار جذب فلزی (II)Pb و رنگینه متیلن آبی مطالعه شد. از طرف دیگر، درصد حذف یون فلزی (II)Pb به‌وسیله نانوکامپوزیت (2) (%96) بیشتر از نانوکامپوزیت (1) (%88) بود. همچنین، شرایط بهینه برای حذف مؤثر رنگینه‌ آبی متیلن با نانوکامپوزیت (1) (94%) و نانوکامپوزیت (2) (98%) در pH برابر 8، مقدار 100mg جاذب نانوکامپوزیتی، زمان 60min تماس و غلظت 80mg/L رنگینه‌ آبی متیلن انجام شد. مدل‌های هم‌دمای Langmuir و Freundlich، سینتیک شبه‌مرتبه‌ اول و شبه‌مرتبه‌ دوم و ترمودینامیکی به منظور تعیین سازوکار جذب یون فلزی (II)Pb و رنگینه‌ آبی متیلن روی‌ نانوکامپوزیت (2) ارزیابی شد. نتایج نشان داد، هم‌دمای Langmuir، سینتیک شبه‌مرتبه اول و جذب خودبه‌خودی مدل مناسبی برای جذب یون فلزی (II)Pb روی نانو کامپوزیت (2) هستند، در حالی که مدل‌های هم‌دمای Freundlich، سینتیک شبه‌مرتبه دوم و جذب خودبه‌خودی مدل مناسبی برای حذف رنگینه‌ آبی متیلن هستند.

کلیدواژه‌ها

عنوان مقاله [English]

Fabrication and Characterization of Dextrin-g-Polypyrrole/Graphene Oxide Nanocomposite for Effective Removal of Pb (II) and Methylene Blue Dye from Aqueous Solutions

نویسندگان [English]

  • Ehsan Nazarzadeh Zare 1
  • Moslem Mansour Lakouraj 2
  • neda kasirian 2
1 School of Chemistry, Damghan University, P.O. Box: 36719-41167, Damghan, Iran
2 Department of Organic Chemistry, Faculty of Chemistry, University of Mazandaran, P.O. Box: 47416-95447, Babolsar, Iran
چکیده [English]

Dextrin-g-polypyrrole/graphene oxides (PDGP/GO) nanocomposite was synthesized using in-situ polymerization and direct blending of PDGP and graphene oxide nanoparticles. The products were named nanocomposite 1 and nanocomposite 2, respectively. The prepared nanocomposites were characterized by Fourier transform infrared (FTIR) spectroscopy. Surface morphology and structure of nanocomposites were investigated by X-ray diffractometry (XRD), scanning electron microscopy (SEM) and atomic force microscopy (AFM). The performance of the synthesized nanocomposites in removing Pb (II) and methylene blue dye from aqueous solutions was evaluated. The effect of pH, adsorbent dosage, contact time and contaminant concentration on Pb (II) and methylene blue uptake capacity was studied. On the other hand, the percentage removal of Pb (II) metal ion by nanocomposite 2 (96%) was higher than that of nanocomposite 1 (88%). The optimum condition for effective removal of methylene blue dye by nanocomposite 1 (94%) and nanocomposite 2 (98%) could be obtained at pH 8, nanocomposite dosage of 100 mg, contact time of 60 min and methylene blue concentration of 80 mg/L. Langmuir and Freundlich isotherm models, pseudo-first-order and pseudo-second-order kinetics equations and thermodynamic models were used to determine the mechanism of Pb (II) and methylene blue adsorption on the nanocomposite 2.  The results showed that the Langmuir isotherm, pseudo-first-order kinetic and spontaneous adsorption were suitable models for Pb (II) sorption on nanocomposite 2, while the Freundlich isotherm, pseudo-second-order kinetic and spontaneous adsorption were suitable models for methylene blue dye removal. Therefore, the PDGP/GO nanocomposite prepared by direct blending could be considered as a promising adsorbent for Pb (II) and methylene blue removal from aqueous solutions.

کلیدواژه‌ها [English]

  • Nanocomposite
  • dextrin-g-polypyrrole
  • graphene oxide
  • Pb (II) removal
  • methylene blue removal

مراجع

Jaishankar M., Tseten T., Anbalagan N., Mathew B.B., and Beeregowda K.N., Toxicity, Mechanism and Health Effects of Some Heavy Metals, Interdiscip. Toxicol., 7, 60-72, 2014.
Gürses A., Doğar Ç., Yalçın M., Açıkyıldız M., Bayraka R., and Karacab S., The Adsorption Kinetics of the Cationic Dye, Methylene Blue, onto Clay. J. Hazard. Mater., 131, 217-228, 2006.
Kadirvelu K., Kavipriya M., Karthika C., Radhika M., Vennilamani N., and Pattabhi S., Utilization of Various Agricultural Wastes for Activated Carbon Preparation and Application for the Removal of Dyes and Metal Ions from Aqueous Solutions, Bioresour. Technol., 87, 129-132, 2003.
Zare E.N., Lakouraj M.M., and Ramezani A., Efficient Sorption of Pb(II) from an Aqueous Solution Using a Poly(aniline- co-3-aminobenzoic acid)-Based Magnetic Core–Shell Nanocomposite, New J. Chem., 40, 2521-2529, 2016.
Crini G., Non-Conventional Low-Cost Adsorbents for Dye Removal: A Review, Bioresour. Technol., 97, 1061-1085, 2006.
Ghasemzadeh H. and Shidrang S., Methyl Violet Dye Absorption from Aqueous Solutions by Nanomagnetic Hydrogels Based on κ-Carrageenan and Acrylic Acid, lran. J. Polym. Sci. Technol. (Persian), 29, 365-376, 2016.
Sahraei R. and Ghaemy M., Synthesis of Modified Gum Tragacanth/Graphene Oxide Composite Hydrogel for Heavy Metal Ions Removal and Preparation of Silver Nanocomposite for Antibacterial Activity, Carbohydr. Polym., 157, 823-833, 2017.
Chen L., Li Y., Du Q., Wang Z., Xia Y., Yedinak E., Lou J., and Ci L.,. High Performance Agar/Graphene Oxide Composite Aerogel for Methylene Blue Removal, Carbohydr. Polym., 155, 345-353, 2017.
Cai J., Lei M., Zhang Q., He J.R., Chen T., Liu S., Fu S.H., Li T.T., Liu G., and Fei P., Electrospun Composite Nanofiber Mats of Cellulose@ Organically Modified Montmorillonite for Heavy Metal Ion Removal: Design, Characterization, Evaluation of Absorption Performance. Compos. Part A: Appl. Sci. Manuf., 92, 10-16, 2017.
Zare E.N. and Lakouraj M.M., Biodegradable Polyaniline/Dextrin Conductive Nanocomposites: Synthesis, Characterization, and Study of Antioxidant Activity and Sorption of Heavy Metal Ions, Iran. Polym. J., 23, 257-266, 2014.
Kumar D. and Sharma R.C., Advances in Conductive Polymers, Eur. Polym. J., 34, 1053-1060, 1998.
Kopecká J., Mrlík M., Olejník R., Kopecký D., Vrňata M., Prokeš J., Bober P., Morávková Z., Trchová M., and Stejskal J., Polypyrrole Nanotubes and Their Carbonized Analogs: Synthesis, Characterization, Gas Sensing Properties, Sensors, 16,1917, 2016.
Zhu Y., Murali S., Cai W., Li X., Suk J.W., Potts J.R., and Ruoff R.S., Graphene and Graphene Oxide: Synthesis, Properties, and Applications, Adv. Mater., 22, 3906-3924, 2010.
Zare E.N., Lakouraj M.M., and Mohseni M., Biodegradable Polypyrrole/Dextrin Conductive Nanocomposite: Synthesis, Characterization, Antioxidant and Antibacterial Activity, Synth. Met., 187, 9-16, 2014.
Hosseini S., Simiari J., and Farhadpour B., Chemical and Electrochemical Grafting of Polyaniline onto Chitosan, Iran. Polym. J., 18, 3-13, 2009.
Marcano D.C., Kosynki D.V., Berlin J.M., Sinitskii A., Sun Z., Slesarev A., Alemany L.B., Lu W., and Tour J.M., Improved Synthesis of Graphene Oxide, ACS Nano, 4, 4806-4814, 2010.
Park S., An J., Jung I., Piner R.D., An S.J., Li X., Velamakanni A., and Ruoff R.S., Colloidal Suspensions of Highly Reduced Graphene Oxide in a Wide Variety of Organic Solvents, Nano. Lett., 9, 1593-1597, 2009.
Lakouraj M.M., Hasanzadeh F., and Zare E.N., Nanogel and Super-Paramagnetic Nanocomposite of Thiacalix[4]Arene Functionalized Chitosan: Synthesis, Characterization and Heavy Metal Sorption, Iran. Polym. J., 23, 933-945, 2014.
Zare E.N., Lakouraj M.M., and Ramezani A., Effective Adsorption of Heavy Metal Cations by Superparamagnetic Poly(aniline-co-m-phenylenediamine)@Fe3O4 Nanocomposite, Adv. Polym. Tech. 34, 21501 (1 of 11), 2015.
Bulut Y. and Haluk A.A., Kinetics and Thermodynamics Study of Methylene Blue Adsorption on Wheat Shells, Desalination, 194, 259-267, 2006.
Shamsudin R., Abdullah H., and Kamari A., Application of Kenaf Bast Fiber to Adsorb Cu(II), Pb(II) and Zn(II) in Aqueous Solution: Single-and Multi-metal Systems, Int. J. Environ. Sci. Develop., 7,715, 2016.
Abia A.A. and Asuquo E.D., Sorption of Pb(II) and Cd(II) Ions onto Chemically Unmodified and Modified Oil Palm Fruit Fiber Adsorbent: Analysis Pseudo Second Order Kinetic Models, Indian J. Chem. Technol., 15, 341-348, 2008.
Tang R., Dai C., Li C., Liu W., Gao S., and Wang C., Removal of Methylene Blue from Aqueous Solution Using Agricultural Residue Walnut Shell: Equilibrium, Kinetic, and Thermodynamic Studies, J. Chem, 2017, 1-10, 2017.
Heydari F., Ghaedi M., Ansari A., and Ghaedi A. M., Random Forest Model for Removal of Methylene Blue and Lead (II) Ion Using Activated Carbon Obtained from Tamarisk. Desalination, Water. Treat., 57,19273-19291, 2016.
Jafari Mansoorian H., Mahvi A.H., Kord Mostafapoor F., and Alizadeh M., Equilibrium and Synthetic Studies of Methylene Blue Dye Removal Using Ash of Walnut Shell, J. Health in the Field (Persian), 1, 48-55, 2013.


فایل ها

هم رسانی

ارجاع به این مقاله

آمار