Degradation of amoxicillin, ampicillin and cloxacillin antibiotics in aqueous solution by the UV/ZnO photocatalytic process

2010 ◽  
Vol 173 (1-3) ◽  
pp. 445-449 ◽  
Author(s):  
Emad S. Elmolla ◽  
Malay Chaudhuri
Keyword(s):  
Aqueous Solution ◽  
Photocatalytic Process

Degradation of pharmaceutical antibiotic (ciprofloxacin) by photocatalysis process using sol-gel based titanium dioxide nanoparticles

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Nitesh Parmar ◽  
Jitendra Kumar Srivastava
Keyword(s):  
Aqueous Solution ◽  
Titanium Dioxide Nanoparticles ◽  
Sol Gel ◽  
Operating Cost ◽  
Titanium Isopropoxide ◽  
Photocatalytic Process ◽  
Photocatalytic Reactor ◽  
Prepared Material ◽  
Maximum Removal

Abstract This study is an attempt to the removal of Ciprofloxacin (CIP) antibiotic from simulated wastewater using a photocatalytic process. The photocatalytic process was carried out in a photocatalytic reactor in the presence of TiO2 nanoparticles. TiO2 nanoparticles were successfully prepared in a laboratory scale using sol-gel method with titanium-isopropoxide (TTIP) as titanium precursor. Prepared material was found very effective to the removal of CIP antibiotic. The maximum removal efficiency of 87.95% of ciprofloxacin from aqueous solution was achieved at the pH 5, catalyst doze of 40 mg L−1 with initial concentration of ciprofloxacin 5 mg L−1, and the reaction time of 100 min additionally; material characterization of TiO2 was presented in detail in terms of XRD, SEM, UV, and FTIR. It has been found that at the optimum condition the total operating cost indicated for the removal of ciprofloxacin from aqueous solution is 786.56 (INR/kg of CIP removal). This technique demonstrated that photocatalytic reaction in presence of TiO2 nanoparticles is well applicable to treat pharmaceutical wastewater.

Application of enhanced nZnO photocatalytic process with ultrasonic wave in formaldehyde degradation from aqueous solution

2015 ◽  
Vol 57 (20) ◽  
pp. 9455-9464 ◽  
Author(s):  
Mohammad Mehdi Amin ◽  
Fahimeh Teimouri ◽  
Mohsen Sadani ◽  
Mohammad Amin Karami
Keyword(s):  
Aqueous Solution ◽  
Ultrasonic Wave ◽  
Photocatalytic Process ◽  
Formaldehyde Degradation

scholarly journals Kinetics of atrazine degradation by photocatalytic process in aqueous solution

2003 ◽  
Vol 5 (2) ◽  
pp. 87-93 ◽  
Author(s):  
O. Zahraa ◽  
L. Sauvanaud ◽  
G. Hamard ◽  
M. Bouchy
Keyword(s):  
Aqueous Solution ◽  
Titanium Dioxide ◽  
Salicylic Acid ◽  
Photocatalytic Degradation ◽  
Competitive Adsorption ◽  
Initial Time ◽  
Photocatalytic Process ◽  
Herbicide Atrazine ◽  
Kinetics Of ◽  
Atrazine Degradation

The photocatalytic degradation of the herbicide atrazine has been studied using suspended titanium dioxide as catalyst. The Langmuir-Hinshelwood model is satisfactorily obeyed at initial time and in the course of the reaction. The rate of degradation is found to be enhanced by the addition of persulphate ions. Competitive degradation between atrazine and other pollutants is satisfactorily interpreted as monitored by a competitive adsorption of the reactants. As a consequence, efficient reactants such as salicylic acid and phenol delay atrazine degradation until these compounds are degraded.

scholarly journals Degradation of Pentachlorophenol in Aqueous Solution by the UV/ZrO2/H2O2 Photocatalytic Process

2015 ◽  
Vol In Press (In Press) ◽  
Author(s):  
Mohammad Reza Samarghandi ◽  
Ali Reza Rahmani ◽  
Mohammad Taghi Samadi ◽  
Majid Kiamanesh ◽  
Ghasem Azarian
Keyword(s):  
Aqueous Solution ◽  
Photocatalytic Process

scholarly journals Synthesis of Visible-Light-Activated Yellow AmorphousTiO2Photocatalyst

2008 ◽  
Vol 2008 ◽  
pp. 1-6 ◽  
Author(s):  
Chamnan Randorn ◽  
John T. S. Irvine ◽  
Peter Robertson
Keyword(s):  
Aqueous Solution ◽  
Visible Light ◽  
Interesting Property ◽  
Bet Surface Area ◽  
Precipitation Method ◽  
Intermediate Form ◽  
Photocatalytic Process ◽  
Active Intermediate ◽  
Visible Light Driven ◽  
Cutoff Filter

Visible-light-activated yellow amorphousTiO2(yam-TiO2) was synthesised by a simple and organic-free precipitation method. TiN, an alternative precursor forTiO2preparation, was dissolved in hydrogen peroxide under acidic condition(pH∼1)adjusted by nitric acid. The yellow precipitate was obtained after adjusting pH of the resultant red brown solution to 2 withNH4OH. The BET surface area of this sample was 261 m2/g. The visible light photoactivity was evaluated on the basis of the photobleaching of methylene blue (MB) in an aqueous solution by using a 250 W metal halide bulb equipped with UV cutoff filter (λ>420 nm) under aerobic conditions. Yam-TiO2exhibits an interesting property of being both surface adsorbent and photoactive under visible light. It was assigned to theη2-peroxide, an active intermediate form of the addition ofH2O2into crystallinedTiO2photocatalyst. It can be concluded that an active intermediate form of titanium peroxo species in photocatalytic process can be synthesised and used as a visible-light-driven photocatalyst.

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