Comparative Study in Liquid-Phase Heterogeneous Photocatalysis: Model for Photoreactor Scale-Up

2010 ◽  
Vol 49 (18) ◽  
pp. 8397-8405 ◽  
Author(s):  
Dong Li ◽  
Kui Xiong ◽  
Wei Li ◽  
Zhuhong Yang ◽  
Chang Liu ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Comparative Study ◽  
Scale Up ◽  
Heterogeneous Photocatalysis

A comparative study of Pd/SiO2 and Pd/MCM-41 catalysts in liquid-phase hydrogenation

2004 ◽  
Vol 5 (10) ◽  
pp. 583-590 ◽  
Author(s):  
Joongjai Panpranot ◽  
Kanda Pattamakomsan ◽  
James G. Goodwin ◽  
Piyasan Praserthdam
Keyword(s):  
Liquid Phase ◽  
Comparative Study ◽  
Liquid Phase Hydrogenation ◽  
Mcm 41

scholarly journals Powerful Concentration of Rhodium in Plating Wastewater Using Homogeneous Liquid–Liquid Extraction (HoLLE) and Study for Scale-up

2017 ◽  
Vol 7 (4) ◽  
pp. 44 ◽  
Author(s):  
Takeshi Kato ◽  
Shotaro Saito ◽  
Shigekatsu Oshite ◽  
Shukuro Igarashi
Keyword(s):  
Phase Separation ◽  
Liquid Phase ◽  
Aqueous Phase ◽  
Scale Up ◽  
Volume Ratio ◽  
Liquid Extraction ◽  
Optimum Conditions ◽  
Homogeneous Liquid ◽  
Liquid Liquid Extraction ◽  
Plating Wastewater

A powerful technique for the concentration of rhodium (Rh) in plating wastewater was developed. The technique entails complexing Rh with 1-(2-pyridylazo)-2-naphthol (PAN) followed by homogeneous liquid–liquid extraction (HoLLE) with Zonyl FSA. The optimum HoLLE conditions were determined as follows: [ethanol]T = 30.0 vol.%, pH = 4.00, and Rh:PAN = 1:5. Under these optimum conditions, 88.1% of Rh was extracted into the sedimented liquid phase. After phase separation, the volume ratio [aqueous phase (Va) /sedimented liquid phase (Vs)] of Va and Vs was 1000 (50 mL → 0.050 mL). We then applied the new method to wastewater generated by the plating industry. The phase separation was satisfactorily achieved when the volume was scaled up to 1000 mL of the actual wastewater; 84.7% of Rh was extracted into the sedimented liquid phase. After phase separation, Va/Vs was 588 (1000 mL - 1.70 mL).

A comparative study on the transalkylation of diisopropylbenzene with benzene over several zeolitic materials in supercritical CO2 and liquid phase

2006 ◽  
Vol 312 ◽  
pp. 194-201 ◽  
Author(s):  
J SOTELO ◽  
L CALVO ◽  
A VELAZQUEZ ◽  
D CAPILLA ◽  
F CAVANI ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Comparative Study ◽  
Supercritical Co2 ◽  
Zeolitic Materials

scholarly journals Heterogeneous Photocatalysis Scalability for Environmental Remediation: Opportunities and Challenges

Catalysts ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1109 ◽  
Author(s):  
Sherif Younis ◽  
Ki-Hyun Kim
Keyword(s):  
Environmental Remediation ◽  
Scale Up ◽  
Pilot Scale ◽  
Heterogeneous Photocatalysis ◽  
Solar Irradiation ◽  
Practical Implementation ◽  
Feed Composition ◽  
Photocatalytic System ◽  
Environmental Treatment ◽  
Contemporary Perspective

Heterogeneous photocatalysis is an ecofriendly technique for purifying organic pollutants in environmental systems. While pilot-scale photoreactors have explored photocatalytic system upscalibility, their practical implementation is restricted for various reasons. These include feed composition alteration, complicated photoreactor designs, high operation and synthesis costs, photocatalyst poisoning, low quantum yield under solar irradiation, fast exciton recombination, and low reuse or regeneration capabilities. In this paper, we highlight the photocatalyst scalability challenges for real-world applications. We also provide an in-depth discussion on photocatalyst opportunities for effective air and water pollution control. Lastly, we offer a contemporary perspective on photocatalysis scale-up for the real environmental treatment.

Comparative Study of the Degradation of the Diclofenac Drug Using Photo-Peroxidation and Heterogeneous Photocatalysis with UV-C and Solar Radiation

2020 ◽  
Vol 231 (4) ◽  
Author(s):  
Dennis Díaz-Rodríguez ◽  
María Elena Palacios-Antón ◽  
Rayany Magali Da Rocha Santana ◽  
Luis Santiago Quiroz-Fernández ◽  
Yunet Gómez-Salcedo ◽  
...  
Keyword(s):  
Solar Radiation ◽  
Comparative Study ◽  
Heterogeneous Photocatalysis ◽  
Uv C
Sign in / Sign up

Export Citation Format

Share Document