Efficiency of nanochitosan in removal of benzene from aqueous solutions

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Motallebi R.; REZAEI H.; HEDAYATI A.A.; Kord Rostami A.

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Journal: Journal of Water and Soil Conservation Year:2019 | Volume:26 | Issue:4 Page(s): 255-267

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Title

Efficiency of nanochitosan in removal of benzene from aqueous solutions

Author(s)

Motallebi R. | REZAEI H. | HEDAYATI A.A. | Kord Rostami A. | Issue Writer Certificate

Keywords

AdsorptionQ1

Aromatic hydrocarbonsQ1

BenzeneQ1

Nano chitosanQ1

Abstract

Background and Objectives: The importance of water as a living environment is not covered by anyone. The bottlenecks caused by population growth and pressure on water resources have made it imperative to conserve these resources. Benzene is an aromatic compound with the formula C6H6. This substance is highly toxic and carcinogenic and is one of the pollutants in the refinery wastewater. The inadequate disposal of such wastewater and no reduction of its pollutants have created many environmental problems. For this purpose, the purpose of this study was to synthesize a porous nano-absorbent agent using chitosan as an inexpensive and environmentally friendly adsorbent for removing Benzene from aqueous solutions and purifying contaminated waters. Materials and Methods: Chitosan nanoparticles were made from chitosan powder made by Sigma Aldrich and 1% acetic acid solution. To characterize the physical, chemical and structural properties of chitosan nanoparticles, X-ray diffraction (XRD), infrared spectrometer (FTIR) and scanning electron microscopy (SEM), the effect of different pH parameters, initial concentration of Benzene solution, absorbent dose and time Contact checked. The concentration of Benzene is determined by the UV-Vis Array spectrophotometer apparatus of Photonix Ar 2015 at 254 nm and analyzed using Excel and SPSS software. Results: According to the results, the optimum amount of Benzene Adsorption was obtained at pH 4. By increasing or decreasing the pH of the solution, the efficiency of Benzene removal decreased. Also, with increasing contact time from 5 to 120 minutes, the efficiency of Benzene removal decreased from 96. 86 to 89. 28%. By increasing the initial concentration of Benzene, the removal efficiency had an upward trend and the highest removal percentage was obtained at a concentration of 70 mg/l, equal to 78. 57%. Also, the results showed that by increasing the absorbent dose, the removal efficiency of Benzene decreased and the highest percentage of removal in the absorbent dose was 0. 01 g, 82. 85%. In optimal conditions, the highest percentage of Benzene removal was determined to be 85. 66%. Conclusion: The results of this study showed that nanochitosan adsorbent has a high efficiency in Adsorption of Benzene from aqueous solutions. Since nanochitosan is of natural origin, it can be used as an environmentally friendly and inexpensive absorbent to remove aromatic compounds from aqueous solutions.

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APA: Copy

Motallebi, R., REZAEI, H., HEDAYATI, A.A., & Kord Rostami, A.. (2019). Efficiency of nanochitosan in removal of benzene from aqueous solutions. JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES), 26(4 ), 255-267. SID. https://sid.ir/paper/156096/en

Vancouver: Copy

Motallebi R., REZAEI H., HEDAYATI A.A., Kord Rostami A.. Efficiency of nanochitosan in removal of benzene from aqueous solutions. JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES)[Internet]. 2019;26(4 ):255-267. Available from: https://sid.ir/paper/156096/en

IEEE: Copy

R. Motallebi, H. REZAEI, A.A. HEDAYATI, and A. Kord Rostami, “Efficiency of nanochitosan in removal of benzene from aqueous solutions,” JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES), vol. 26, no. 4 , pp. 255–267, 2019, [Online]. Available: https://sid.ir/paper/156096/en

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