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Enhanced photocatalytic degradation of tetracycline and real pharmaceutical wastewater using MWCNT/TiO2 nano-composite

Ahmadi, Mehdi, Ramezani Motlagh, Hojjatallah, Jaafarzadeh, Nematollah, Mostoufi, Azar, Saeedi, Reza, Barzegar, Gelavizh, Jorfi, Sahand·2017·Journal of Environmental Management

Abstract

Photocatalytic degradation of tetracycline using MWCNT/TiO2nanocomposite was investigated under UVC irradiation. The effective operational parameters included pH, irradiation time, photocatalyst dosage, weight ratio of MWCNT to TiO2 and tetracycline concentration and were studied consecutively. Complete removal of tetracycline concentrations of up to 10 mg/L was obtained at MWCNT to TiO2 ratio of 1.5 (w/w%), pH 5, photocatalyst dosage of 0.2 g/L. Pseudo-first order kinetic model was best fitted with the experimental results (R2: 0.91-0.98 for different tetracycline concentrations). Based on TOC analysis, mineralization was 37% in the same reaction conditions for initial tetracycline concentration of 10 mg/L and reached to 83% after 300 min. In the case of real pharmaceutical wastewater, the COD concentration of 2267 mg/L decreased to 342 mg/L after 240 min in the same operational conditions.

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Metadata

Authors
Ahmadi, M., Ramezani Motlagh, H., Jaafarzadeh, N., Mostoufi, A., Saeedi, R., Barzegar, G., & Jorfi, S.
Venue
Journal of Environmental Management
Publisher
Elsevier BV
Published
2017-01
Volume
186
Issue
Pt 1
Pages
55-63
ISSN
0301-4797 (ISSN-L)
OpenAlex
W2553841405
Cited by
453
References
0
FWCI
9.03
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Enhanced photocatalytic degradation of tetracycline and real pharmaceutical wastewater using MWCNT/TiO2 nano-composite. https://app.cochat.ai/papers/10.1016/j.jenvman.2016.09.088
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Ahmadi, M., Ramezani Motlagh, H., Jaafarzadeh, N., Mostoufi, A., Saeedi, R., Barzegar, G., & Jorfi, S. (2017). Enhanced photocatalytic degradation of tetracycline and real pharmaceutical wastewater using MWCNT/TiO2 nano-composite. Journal of Environmental Management. https://doi.org/10.1016/j.jenvman.2016.09.088

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