Degradation of 4-chlorophenol by sunlight using catalyst ...

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195 Degradation of 4-chlorophenol by sunlight using catalyst of zinc oxide Ramazan-Ali Dianati-Tilaki 1 , Mohammad-Ali Zazoli 1 , Jamshid Yazdani 2 , Mahdieh Alamgholilu 3 , Ehsan Rostamali 3 1 Associate Professor, Department of Environmental Health Engineering, Health Sciences Research Center, School of Health, Mazandaran University of Medical Sciences, Sari, Iran 2 Assistant Professor, Department of Biostatistics, School of Health, Mazandaran University of Medical Sciences, Sari, Iran 3 MSc Student of Environmental Health Engineering, Student Research Committee, School of Health, Mazandaran University of Medical Sciences, Sari, Iran (Received November 30, 2013; Accepted February 23, 2014) Abstract Background and purpose: Chrophenols represent one of the most abundant toxic compounds of industrial which are resistant to biodegradation and persist in the environment for long time. Sunlight is the source of many photochemical reactions. The present study aimed to determine degradation of 4-chlrophenol as persistent organic compound by sunlight in the presence of zinc oxide as a catalyst. Materials and methods: This study was performed in batch conditions. Determined amount of catalyst was added to defined volume of 4-chlorophenol solution which was adjusted pH. Effects of parameters such as ZnO loading, PH, and contact time were investigated. The remaining concentrations of 4-chlorophenol were analyzed by HPLC (high-performance liquid chromatography). Results: The results showed that sunlight in present of zinc oxide as nanocatalyst lead to almost 75% degradation of 4-chlorophenol in optimum conditions (zinc oxide loading = 1.5 g/l, alkalin pH). Zinc Oxide loses photocatalytic property in acidic pH. Conclusion: Sunlight using catalyst of zinc oxide lead to degradation of persistent organic compounds significantly. The catalyst is not consumed and reusable. Keywords: 4-chlorophenol, sunlight, decomposition J Mazand Univ Med Sci 2014; 23(Suppl 2): 196-201 (Persian). [ Downloaded from jmums.mazums.ac.ir on 2022-04-27 ] 1 / 7

Transcript of Degradation of 4-chlorophenol by sunlight using catalyst ...

Page 1: Degradation of 4-chlorophenol by sunlight using catalyst ...

195

Degradation of 4-chlorophenol by sunlight using catalyst of zinc oxide

Ramazan-Ali Dianati-Tilaki1,

Mohammad-Ali Zazoli1,

Jamshid Yazdani2,

Mahdieh Alamgholilu3,

Ehsan Rostamali3

1 Associate Professor, Department of Environmental Health Engineering, Health Sciences Research Center, School of Health, Mazandaran

University of Medical Sciences, Sari, Iran 2 Assistant Professor, Department of Biostatistics, School of Health, Mazandaran University of Medical Sciences, Sari, Iran

3 MSc Student of Environmental Health Engineering, Student Research Committee, School of Health, Mazandaran University of Medical Sciences, Sari, Iran

(Received November 30, 2013; Accepted February 23, 2014)

Abstract

Background and purpose: Chrophenols represent one of the most abundant toxic compounds of industrial

which are resistant to biodegradation and persist in the environment for long time. Sunlight is the source of many

photochemical reactions. The present study aimed to determine degradation of 4-chlrophenol as persistent organic

compound by sunlight in the presence of zinc oxide as a catalyst.

Materials and methods: This study was performed in batch conditions. Determined amount of catalyst was

added to defined volume of 4-chlorophenol solution which was adjusted pH. Effects of parameters such as ZnO loading,

PH, and contact time were investigated. The remaining concentrations of 4-chlorophenol were analyzed by HPLC

(high-performance liquid chromatography).

Results: The results showed that sunlight in present of zinc oxide as nanocatalyst lead to almost 75%

degradation of 4-chlorophenol in optimum conditions (zinc oxide loading = 1.5 g/l, alkalin pH). Zinc Oxide loses

photocatalytic property in acidic pH.

Conclusion: Sunlight using catalyst of zinc oxide lead to degradation of persistent organic compounds

significantly. The catalyst is not consumed and reusable.

Keywords: 4-chlorophenol, sunlight, decomposition J Mazand Univ Med Sci 2014; 23(Suppl 2): 196-201 (Persian).

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Page 7: Degradation of 4-chlorophenol by sunlight using catalyst ...

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References 1. Seid Mohammadi A, Movahedian Attar H.

P-chlorophenol oxidation in industrial effluent by ultrasonic/fenton technology. Water and Wastewater 2011; 22(4): 43-9. (Persian).

2. Cheng Y, Sun H, Jin W, Xu N. Photocatalytic degradation of 4-chlorophenol with combustion synthesized TiO2 under visible light irradiation. Chemical Engineering Journal 2007; 128(2-3): 127-33.

3. Dixit A, Mungray AK, Chakraborty M. Photochemical Oxidation of Phenol and Chlorophenol by UV/H2O2/TiO2 Process: A Kinetic Study. Int J Chem Eng Appl 2010; 1(3): 247-50.

4. Mesdaghinia AR, Farrokhi M, Naseri S, Yazdanbakhsh AR. Biodegradability enhancement of 2,4,6 trichlorophenol (TCP) by fenton's oxidation process. Hakim Res J 2004; 7(2): 33-40. (Persian).

5. Gholizadeh A, Kermani M, Gholami M, Farzadkia MM. Comparative Investigation of 2-Chlorophenol and 4-Chrorophenol Removal Using Granulated Activated Carbon and Rice Husk Ash. Toloo e Behdasht 2013; 11(3): 66-78. (Persian).

6. Kermani M, Gholami M, Gholizade A, Farzadkia M, Esrafili A. Effectiveness of Rice Husk Ash in Removal of Phenolic Compounds from Aqueous Solutions, Equilibrium and Kinetics Studies. Iranian Journal of Health 2012; 5(1): 107-20. (Persian).

7. Pera-Titusa M, Garcia-Molina V, Banos MA, Giméneza J, Esplugas S. Degradation of chlorophenols by means of advanced oxidation processes: a general review. Applied Catalysis B: Environmental 2004; 47(4): 219-56.

8. Manshouri M, Yazdanbakhsh AR, Sardar M, Sheykh Mohammadi A. Investigation of Effective Factors for Fenton like Process in Para!Chlorophenol Removal from Aqueous Solutions. Iranian Journal of Health 2010; 3(4): 381-8. (Persian).

9. Moonsiri M, Rangsunvigit P, Chavadej S, Gulari E. Effects of Pt and Ag on the photocatalytic degradation of 4-chlorophenol and its by-products. Chemical Engineering Journal 2004; 97: 241-8.

10. Masoumbeigi H, Rezaee A, Khataee AR, Hashemian J. Photocatalytic removal of escherichia coli and streptococcus faecalis from water using immobilized zno nanoparticles. Qom Univ Med Sci J 2013; 6(4): 24-35. (Persian).

11. Alimoradzadeh R, Assadi A, Nasseri S, Mehrasbi MR. Photocatalytic degradation of 4-chlorophenol by UV/H2O2/NiO process in aqueous solution. Iran J Environ Health Sci Eng 2012; 9: 12. (Persian).

12. Chiou CH, Wu C, Juang RS. Influence of operating parameters on photocatalytic degradation of phenol in UV/TiO2 process. Chemical Engineering Journal 2008; 139(2): 322-9.

13. Gaya UI, Abdullah AH, Zainal Z, Hussein MZ. Photocatalytic treatment of 4-chlorophenol in aqueous ZnO suspensions: intermediates, influence of dosage and inorganic anions. J Hazard Mater 2009; 168(1): 57-63.

14. Cao G, Li Y, Zhang Q, Wang H. Synthesis and characterization of La2O3/TiO2-xFx and the visible light photocatalytic oxidation of 4-chlorophenol. J Hazard Mater 2010; 178(1-3): 440-9.

15. Goel M, Chovelon JM, Ferronato C, Bayard R, Sreekrishnan TR. The remediation of wastewater containing 4-chlorophenol using integrated photocatalytic and biological treatment. J Photochem Photobiol B 2010; 98(1): 1-6.

16. Dehghani Fard E, Jonidi Jafari A, Rezae Kalantari R, Gholami M, Esrafili A. Photocatalytic Removal of Aniline from Synthetic Wastewater using ZnO Nanoparticle under Ultraviolet Irradiation. Iran J Health Environ 2012; 5(2): 167-78. (Persian).

17. Ba-Abbad MM, Kadhum AH, Al-Amiery AA, Mohamad AB, Takriff MS. Toxicity evaluation for low concentration of chlorophenols under solar radiation using zinc oxide (ZnO) nanoparticles. International Journal of the Physical Sciences 2012; 7(1): 48-52.

18. Shinde SS, Shinde PS, Bhosale CH, Rajpure KY. Zinc oxide mediated heterogeneous photocatalytic degradation of organic species under solar radiation. J Photochem Photobiol B 2011; 104(3): 425-33.

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