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da Silva ES, Starling MCVM, Amorim CC. LED-irradiated photo-Fenton process on pollutant removal: outcomes, trends, and limitations. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-29941-4. [PMID: 37831245 DOI: 10.1007/s11356-023-29941-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 09/13/2023] [Indexed: 10/14/2023]
Abstract
This manuscript critically reviews the state of the art on the application of photo-Fenton processes irradiated by light-emitting diode arrays (LED) with a focus on the removal of contaminants of emerging concern (CEC) from aqueous matrices. LEDs are clean, low-cost radiation sources with longer lifespan compared to mercury lamps. This study covers the influence of LED sources, wavelengths, and dose upon CEC removal, and the potential for disinfection, abatement of antibiotic-resistant bacteria (ARB), and genes (ARG). The bibliographic search was performed in Scopus database using keyword combinations and resulted in a portfolio containing 52 relevant articles published between 2010-2023. According to reviewed papers, LED photoreactor design has evolved in the past decade aiming to improve CEC degradation in aqueous matrices while reducing construction and operation costs, and energy consumption. Among several reactors (annular, fluidized bed, parallel plate, wireless, pathway systems, and microreactor) surveyed for their performance and scalability, LED chips and strips are particularly suitable for application due to their wide emission angle (≈120°) and small size (mm2), which allow for, respectively, efficient illumination coverage and flexible arrangement and design. LED microreactors are very efficient in the degradation of contaminants and scalable with reduced area requirements. Although most studies were performed in synthetic solutions and at laboratory scale, the externally LED irradiated cylindrical reactor was successful for application in full-scale municipal water treatment plants. Future studies should focus on evaluating CEC removal in wastewater using scalable devices for continuous operation of solar photo-Fenton at night.
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Affiliation(s)
- Eloísa Stéphanie da Silva
- Research Group On Environmental Applications of Advanced Oxidation Processes (GruPOA), Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Av. Antônio Carlos, 6627, Belo Horizonte, Minas Gerais, 31270-901, Brazil
| | - Maria Clara Vieira Martins Starling
- Research Group On Environmental Applications of Advanced Oxidation Processes (GruPOA), Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Av. Antônio Carlos, 6627, Belo Horizonte, Minas Gerais, 31270-901, Brazil
| | - Camila Costa Amorim
- Research Group On Environmental Applications of Advanced Oxidation Processes (GruPOA), Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Av. Antônio Carlos, 6627, Belo Horizonte, Minas Gerais, 31270-901, Brazil.
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Rabanimehr F, Farhadian M, Nazar ARS. A high-performance microreactor integrated with chitosan/ Bi 2WO 6/CNT/TiO 2 nanofibers for adsorptive/photocatalytic removal of cephalexin from aqueous solution. Int J Biol Macromol 2022; 208:260-274. [PMID: 35337910 DOI: 10.1016/j.ijbiomac.2022.03.108] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Revised: 03/16/2022] [Accepted: 03/17/2022] [Indexed: 12/20/2022]
Abstract
A Z-scheme Bi2WO6/CNT/TiO2 photocatalyst was synthesized hydrothermally and loaded on chitosan nanofibers with different mass percentages using the electrospinning process. The batch adsorption experiments for chitosan nanofibrous samples containing Bi2WO6/CNT/TiO2 revealed that the adsorption process and its kinetic followed the Langmuir isotherm and pseudo-second-order model, respectively. A planar microreactor with a reusable plate-type configuration was fabricated employing an inexpensive micromachining technique and integrated with chitosan/Bi2WO6/CNT/TiO2 nanofibers. The synergistic effect of the adsorption and photocatalysis was assessed for removing cephalexin under simulated sunlight irradiation in a continuous flow microreactor. The nanofibers containing 15 wt% of Bi2WO6/CNT/TiO2 exhibited the most removal efficiency. The effects of operational variables were investigated in the microreactor and optimized using response surface methodology as light intensity = 17.45 W/m2, retention time = 256 s, pH = 4.8, and initial cephalexin concentration = 29 mg/L. At this condition, cephalexin and TOC removal efficiencies reached 99.2% and 92.4%, respectively. The kinetic of disappearance of cephalexin under optimal conditions followed the Langmuir-Hinshelwood model. The adsorption equilibrium constant deduced from this model was similar to that one calculated from the Langmuir isotherm model. At the optimum condition, cephalexin removal efficiency reduced to 80% after 1500 min of microreactor operation and the nanofibers revealed appropriate stability and reusability.
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Affiliation(s)
- Fayazeh Rabanimehr
- Department of Chemical Engineering, Faculty of Engineering, University of Isfahan, Isfahan, Iran.
| | - Mehrdad Farhadian
- Department of Chemical Engineering, Faculty of Engineering, University of Isfahan, Isfahan, Iran.
| | - Ali Reza Solaimany Nazar
- Department of Chemical Engineering, Faculty of Engineering, University of Isfahan, Isfahan, Iran.
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3
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Usability, durability and regeneration of Ag/ZnO coated microreactor for photocatalytic degradation of methylene blue. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.132003] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Dong G, Chen B, Liu B, Hounjet LJ, Cao Y, Stoyanov SR, Yang M, Zhang B. Advanced oxidation processes in microreactors for water and wastewater treatment: Development, challenges, and opportunities. WATER RESEARCH 2022; 211:118047. [PMID: 35033742 DOI: 10.1016/j.watres.2022.118047] [Citation(s) in RCA: 43] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 12/11/2021] [Accepted: 01/05/2022] [Indexed: 06/14/2023]
Abstract
The miniaturization of reaction processes by microreactors offers many significant advantages over the use of larger, conventional reactors. Microreactors' interior structures exhibit comparatively higher surface area-to-volume ratios, which reduce reactant diffusion distances, enable faster and more efficient heat and mass transfer, and better control over process conditions. These advantages can be exploited to significantly enhance the performance of advanced oxidation processes (AOPs) commonly used for the removal of water pollutants. This comprehensive review of the rapidly emerging area of environmental microfluidics describes recent advances in the development and application of microreactors to AOPs for water and wastewater treatment. Consideration is given to the hydrodynamic properties, construction materials, fabrication techniques, designs, process features, and upscaling of microreactors used for AOPs. The use of microreactors for various AOP types, including photocatalytic, electrochemical, Fenton, ozonation, and plasma-phase processes, showcases how microfluidic technology enhances mass transfer, improves treatment efficiency, and decreases the consumption of energy and chemicals. Despite significant advancements of microreactor technology, organic pollutant degradation mechanisms that operate during microscale AOPs remain poorly understood. Moreover, limited throughput capacity of microreactor systems significantly restrains their industrial-scale applicability. Since large microreactor-inspired AOP systems are needed to meet the high-throughput requirements of the water treatment sector, scale-up strategies and recommendations are suggested as priority research opportunities. While microstructured reactor technology remains in an early stage of development, this work offers valuable insight for future research and development of AOPs in microreactors for environmental purposes.
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Affiliation(s)
- Guihua Dong
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL A1B 3X5, Canada
| | - Bing Chen
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL A1B 3X5, Canada.
| | - Bo Liu
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL A1B 3X5, Canada
| | - Lindsay J Hounjet
- Natural Resources Canada, CanmetENERGY Devon, 1 Oil Patch Drive, Devon, AB T9G 1A8, Canada
| | - Yiqi Cao
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL A1B 3X5, Canada
| | - Stanislav R Stoyanov
- Natural Resources Canada, CanmetENERGY Devon, 1 Oil Patch Drive, Devon, AB T9G 1A8, Canada.
| | - Min Yang
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL A1B 3X5, Canada
| | - Baiyu Zhang
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL A1B 3X5, Canada
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Current scenario and prospects in manufacture strategies for glass, quartz, polymers and metallic microreactors: A comprehensive review. Chem Eng Res Des 2021. [DOI: 10.1016/j.cherd.2021.05.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Eslami A, Saghi MH, Akbari-adergani B, Sadeghi S, Ghaderpoori M, Rabbani M, Alinejad A. Synthesis of modified ZnO nanorods and investigation of its application for removal of phthalate from landfill leachate: A case study in Aradkouh landfill site. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE & ENGINEERING 2021; 19:133-142. [PMID: 34150224 PMCID: PMC8172690 DOI: 10.1007/s40201-020-00587-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 11/10/2020] [Indexed: 06/12/2023]
Abstract
In this study, zinc oxide nanorods, co-doped with iron and silver, were synthesized in a co-precipitation method. Its properties were determined using X-ray diffraction (XRD), Transmission electron microscopy (TEM), Field Emission Scanning Electron Microscopy (FE-SEM), Brunauer-Emmett-Teller (BET), Dynamic light scattering (DLS) and X-ray photoelectron spectroscopy (XPS) analysis. The results of FE-SEM and TEM showed that zinc oxide nanoparticles synthesized and co-doped with iron and silver were formed as separate nanorods. Also, the average values of DBP and DEHP amount of phthalates in the leachate from the landfill site of Aradkouh were obtained 52.5 and 94.69 mg/L, respectively. The highest removal efficiency in real samples for phthalates was found to be 52%. The highest removal efficiency of TOC were was 61%. The synthesized nanostructure could have proper efficiency in removal of phthalates from water sources under the visible light of LED lamp.
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Affiliation(s)
- Akbar Eslami
- Environmental and Occupational Hazards Control Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Hossien Saghi
- Non-Communicable Diseases Research Center, Sabzevar University of Medical Sciences, Sabzevar, Iran
- Department of Environmental Health Engineering, School of Health, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - Behrouz Akbari-adergani
- Nanotechnology Products Laboratory, Water Safety Research Center, Food and Drug Organization, Ministry of Health and Medical Education, Tehran, Iran
| | - Shahram Sadeghi
- Environmental Health Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Mansour Ghaderpoori
- Department of Environmental Health Engineering, School of Health and Nutrition, Lorestan University of Medical Sciences, Khorramabad, Iran
- Nutritional Health Research Center, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Mahboubeh Rabbani
- Department of Chemistry, Iran University of Science and Technology, Tehran, Iran
| | - Abdolazim Alinejad
- Department of Public Health, Fasa University of Medical Sciences, Fasa, Iran
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Novack AM, Dos Reis GS, Hackbarth FV, Marinho BA, Ðolić MB, Valle JAB, Sampaio CH, Lima EC, Dotto GL, Ulson de Souza AA, Vilar VJP, Guelli Ulson de Souza SMA. Facile fabrication of hybrid titanium(IV) isopropoxide/pozzolan nanosheets (TnS-Pz) of high photocatalytic activity: characterization and application for Cr(VI) reduction in an aqueous solution. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:23568-23581. [PMID: 32474789 DOI: 10.1007/s11356-020-09178-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 05/04/2020] [Indexed: 06/11/2023]
Abstract
This paper presents the synthesis of a hybrid material through the use of natural pozzolan and titanium(IV) isopropoxide using the sol-gel method and its application in the photocatalytic hexavalent chromium reduction. The characterization data indicated a mesoporous material possessing a surface area of 271.7 m2 g-1. The morphology studies (SEM and TEM) showed nanosheet hybrid structures. The analysis of DRUV, FTIR, XRD, and Mössbauer spectroscopy provides a different electronic structure of the synthetized material when compared with the originals, proving the hybridization process between pozzolan and titanium(IV) isopropoxide. The photocatalytic reduction of Cr(VI) to Cr(III) using the hybrid material showed a better performance than conventional photocatalysts (precursor and TiO2-P25). Operational conditions such as chromium initial concentration (0.02-0.20 mM), solution pH (3-6), and type of scavenger (citric or tartaric acid) were evaluated in order to determine the best experimental conditions for the Cr(VI) photoreduction. At their optimum (catalyst load of 15 mg L-1, tartaric acid as scavenger, [scavenger]0/[Cr(VI)]0 M ratio = 3:1, pH 3, and 25 °C), the total photoreduction of 0.20 mM Cr(VI) was achieved in 180 min. The novel hybrid materials synthesized from pozzolan and titanium(IV) isopropoxide showed to be a potential catalyst for the Cr(VI) reduction in aqueous solution. Graphical abstract.
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Affiliation(s)
- Aline M Novack
- Laboratory of Mass Transfer, Federal University of Santa Catarina (UFSC), PO Box 476, Florianópolis, SC, 88040-900, Brazil
| | - Glaydson S Dos Reis
- Graduate Program in Mine, Metallurgical, and Materials Engineering (PPGE3M), School of Engineering, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, Porto Alegre, RS, Brazil
| | - Fabíola V Hackbarth
- Laboratory of Mass Transfer, Federal University of Santa Catarina (UFSC), PO Box 476, Florianópolis, SC, 88040-900, Brazil
| | - Belisa A Marinho
- Laboratory of Mass Transfer, Federal University of Santa Catarina (UFSC), PO Box 476, Florianópolis, SC, 88040-900, Brazil.
| | - Maja B Ðolić
- Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, Belgrade, 11000, Serbia
| | - José A B Valle
- Laboratory of Mass Transfer, Federal University of Santa Catarina (UFSC), PO Box 476, Florianópolis, SC, 88040-900, Brazil
| | - Carlos H Sampaio
- Departament d'Enginyeria Minera, Industrial i TIC, Prof. Serra Húnter, Universitat Politècnica de Catalunya Barcelona Tech, Manresa, Barcelona, Spain
| | - Eder C Lima
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, Postal Box 15003, Porto Alegre, RS, 91501-970, Brazil
| | - Guillherme L Dotto
- Environmental Processes Laboratory (LAPAM), Chemical Engineering Department, Federal University of Santa Maria (UFSM), Av. Roraima 1000, Santa Maria, RS, 97105-900, Brazil
| | - Antônio Augusto Ulson de Souza
- Laboratory of Mass Transfer, Federal University of Santa Catarina (UFSC), PO Box 476, Florianópolis, SC, 88040-900, Brazil
| | - Vítor J P Vilar
- Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Department of Chemical Engineering, Faculty of Engineering, University of Porto, Rua do Dr. Roberto Frias, 4200-465, Porto, Portugal.
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Shukla K, Agarwalla S, Duraiswamy S, Gupta RK. Recent advances in heterogeneous micro-photoreactors for wastewater treatment application. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2021.116511] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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9
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Javornik G, Basso A, Padoin N, Soares C. An investigation of scale effect and applicability of compact light sources in microchannel reactors applied to pollutant abatement. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:22957-22968. [PMID: 33438125 DOI: 10.1007/s11356-020-12099-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Accepted: 12/14/2020] [Indexed: 06/12/2023]
Abstract
In this work, the performance of microreactors irradiated with conventional (fluorescent) and UV-LED light was evaluated. For this purpose, a microfluidic reactor with an equivalent diameter of 133.5 μm was used. In addition, the effect of scale variation on the performance of photochemical reactors was assessed using reactors with three internal diameters (600, 1200, and 2300 μm), 2 residence times (30 and 60 s), and two sources of UVA radiation (A with irradiance of 115 W m-2 and B with irradiance of 44 W m-2). Also, the relationship between the configuration of the photocatalyst film and the effect of the scale on the performance of photochemical reactors was experimentally and theoretically investigated. For both cases, methylene blue dye was used as a model pollutant and titanium dioxide (TiO2) as a photocatalyst deposited on the inner wall of the photocatalytic reactors. For the residence time of 30 s, the smaller the reactor diameter, the greater was the degradation (22, 18, and 6%, respectively, for lamp A and 17, 16, and 8 %, respectively, for lamp B). The influence of the diameter of the reactor was also observed for the residence time of 60 s, but only for the reactor with a 2300-μm internal diameter. The reactors with diameters 600 and 1200 μm only showed different results when illuminated with lamp B (33 and 28% of methylene blue conversion, respectively). Moreover, computational simulation results suggested higher efficiency as the reactor's diameter is decreased and an optimum thickness of photocatalyst film to maximize the performance of devices in which photocatalytic reactions are carried out.
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Affiliation(s)
- Gisele Javornik
- Department of Chemical and Food Engineering (EQA), School of Technology (CTC), Federal University of Santa Catarina (UFSC), Florianópolis, SC, 88040-900, Brazil
| | - Alex Basso
- Department of Chemical and Food Engineering (EQA), School of Technology (CTC), Federal University of Santa Catarina (UFSC), Florianópolis, SC, 88040-900, Brazil
| | - Natan Padoin
- Department of Chemical and Food Engineering (EQA), School of Technology (CTC), Federal University of Santa Catarina (UFSC), Florianópolis, SC, 88040-900, Brazil
| | - Cíntia Soares
- Department of Chemical and Food Engineering (EQA), School of Technology (CTC), Federal University of Santa Catarina (UFSC), Florianópolis, SC, 88040-900, Brazil.
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Aysan Rahimpour-Javid, Mohammad A. Behnajady. Artificial Neural Network Modelling of Photocatalytic Degradation of Diclofenac as a Pharmaceutical Contaminant. J WATER CHEM TECHNO+ 2020. [DOI: 10.3103/s1063455x20040128] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Dai S, Jiang L, Liu L, Chen J, Liao Y, He S, Cui J, Liu X, Zhao A, Yang P, Huang N. Photofunctionalized and Drug-Loaded TiO2 Nanotubes with Improved Vascular Biocompatibility as a Potential Material for Polymer-Free Drug-Eluting Stents. ACS Biomater Sci Eng 2020; 6:2038-2049. [DOI: 10.1021/acsbiomaterials.0c00041] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sheng Dai
- Institute of Biomaterials and Surface Engineering, Key Lab. for Advanced Technologies of Materials, Ministry of Education, Southwest Jiaotong University, No. 111 of the North 1st Section of Second Ring Road, Chengdu 610031, China
| | - Lang Jiang
- Institute of Biomaterials and Surface Engineering, Key Lab. for Advanced Technologies of Materials, Ministry of Education, Southwest Jiaotong University, No. 111 of the North 1st Section of Second Ring Road, Chengdu 610031, China
| | - Luying Liu
- Institute of Biomaterials and Surface Engineering, Key Lab. for Advanced Technologies of Materials, Ministry of Education, Southwest Jiaotong University, No. 111 of the North 1st Section of Second Ring Road, Chengdu 610031, China
| | - Jiang Chen
- Institute of Biomaterials and Surface Engineering, Key Lab. for Advanced Technologies of Materials, Ministry of Education, Southwest Jiaotong University, No. 111 of the North 1st Section of Second Ring Road, Chengdu 610031, China
- National Engineering Research Center for Biomaterials, Sichuan University, No. 29 of Wangjiang road, Wuhou district, Chengdu, Sichuan 610064, China
| | - Yuzhen Liao
- Institute of Biomaterials and Surface Engineering, Key Lab. for Advanced Technologies of Materials, Ministry of Education, Southwest Jiaotong University, No. 111 of the North 1st Section of Second Ring Road, Chengdu 610031, China
| | - Shuang He
- Institute of Biomaterials and Surface Engineering, Key Lab. for Advanced Technologies of Materials, Ministry of Education, Southwest Jiaotong University, No. 111 of the North 1st Section of Second Ring Road, Chengdu 610031, China
| | - Jiawei Cui
- Institute of Biomaterials and Surface Engineering, Key Lab. for Advanced Technologies of Materials, Ministry of Education, Southwest Jiaotong University, No. 111 of the North 1st Section of Second Ring Road, Chengdu 610031, China
| | - Xiaoqi Liu
- Sichuan Key Laboratory for Disease Gene Study, Sichuan Academy of Medical Sciences & Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, No. 32 of the West Second Section of First Ring Road, Chengdu, CN 610072, China
| | - Ansha Zhao
- Institute of Biomaterials and Surface Engineering, Key Lab. for Advanced Technologies of Materials, Ministry of Education, Southwest Jiaotong University, No. 111 of the North 1st Section of Second Ring Road, Chengdu 610031, China
| | - Ping Yang
- Institute of Biomaterials and Surface Engineering, Key Lab. for Advanced Technologies of Materials, Ministry of Education, Southwest Jiaotong University, No. 111 of the North 1st Section of Second Ring Road, Chengdu 610031, China
| | - Nan Huang
- Institute of Biomaterials and Surface Engineering, Key Lab. for Advanced Technologies of Materials, Ministry of Education, Southwest Jiaotong University, No. 111 of the North 1st Section of Second Ring Road, Chengdu 610031, China
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Chen Y, Fang J, Dai B, Wei H, Kou J, Lu C. Seaweed bio-inspired ZnO piezoelectric cilia array applied in microreactors for enhanced photocatalytic performance. Catal Sci Technol 2020. [DOI: 10.1039/c9cy02509j] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A piezoelectric built-in electric field is believed to be an effective way to separate photoinduced carriers and enhance photocatalytic performance.
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Affiliation(s)
- Yukai Chen
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Materials Science and Engineering
- Nanjing Tech University
- Nanjing 210009
- P. R. China
| | - Jiaojiao Fang
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Materials Science and Engineering
- Nanjing Tech University
- Nanjing 210009
- P. R. China
| | - Baoying Dai
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Materials Science and Engineering
- Nanjing Tech University
- Nanjing 210009
- P. R. China
| | - Huimin Wei
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Materials Science and Engineering
- Nanjing Tech University
- Nanjing 210009
- P. R. China
| | - Jiahui Kou
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Materials Science and Engineering
- Nanjing Tech University
- Nanjing 210009
- P. R. China
| | - Chunhua Lu
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Materials Science and Engineering
- Nanjing Tech University
- Nanjing 210009
- P. R. China
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Rashmi Pradhan S, Colmenares-Quintero RF, Colmenares Quintero JC. Designing Microflowreactors for Photocatalysis Using Sonochemistry: A Systematic Review Article. Molecules 2019; 24:E3315. [PMID: 31547232 PMCID: PMC6767219 DOI: 10.3390/molecules24183315] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 09/06/2019] [Accepted: 09/08/2019] [Indexed: 11/25/2022] Open
Abstract
Use of sonication for designing and fabricating reactors, especially the deposition of catalysts inside a microreactor, is a modern approach. There are many reports that prove that a microreactor is a better setup compared with batch reactors for carrying out catalytic reactions. Microreactors have better energy efficiency, reaction rate, safety, a much finer degree of process control, better molecular diffusion, and heat-transfer properties compared with the conventional batch reactor. The use of microreactors for photocatalytic reactions is also being considered to be the appropriate reactor configuration because of its improved irradiation profile, better light penetration through the entire reactor depth, and higher spatial illumination homogeneity. Ultrasound has been used efficiently for the synthesis of materials, degradation of organic compounds, and fuel production, among other applications. The recent increase in energy demands, as well as the stringent environmental stress due to pollution, have resulted in the need to develop green chemistry-based processes to generate and remove contaminants in a more environmentally friendly and cost-effective manner. It is possible to carry out the synthesis and deposition of catalysts inside the reactor using the ultrasound-promoted method in the microfluidic system. In addition, the synergistic effect generated by photocatalysis and sonochemistry in a microreactor can be used for the production of different chemicals, which have high value in the pharmaceutical and chemical industries. The current review highlights the use of both photocatalysis and sonochemistry for developing microreactors and their applications.
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Affiliation(s)
- Swaraj Rashmi Pradhan
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland.
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Espíndola JC, Cristóvão RO, Santos SGS, Boaventura RAR, Dias MM, Lopes JCB, Vilar VJP. Intensification of heterogeneous TiO 2 photocatalysis using the NETmix mili-photoreactor under microscale illumination for oxytetracycline oxidation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 681:467-474. [PMID: 31117018 DOI: 10.1016/j.scitotenv.2019.05.066] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 04/15/2019] [Accepted: 05/06/2019] [Indexed: 06/09/2023]
Abstract
This study focuses on the intensification of heterogeneous TiO2 photocatalysis for the removal of a contaminant of emerging concern (CEC), oxytetracycline (OTC), as a polishing step of urban wastewaters, using an innovative NETmix mili-photoreactor under UVA-LEDs illumination. The effect of catalyst coated surface per reactor volume and the illumination mechanism, back-side (BSI) or front-side (FSI) irradiation, on OTC oxidation were evaluated. For that, a thin film of photocatalyst was uniformly deposited on the front borosilicate slab (BS) (BSI mechanism; 333 m2catalyst m-3reactor) or on the network of channels and chambers imprinted in the back stainless-steel slab (SSS) (FSI mechanism; 989 m2catalyst m-3reactor) using a spray system. OTC removal was also assessed as a function of TiO2 film thickness immobilized on both slabs. The photocatalyst reactivity in combination with photoreactor was significantly enhanced (3.4 times) from 0.64 to 2.19 mmolOTC m-3illuminated reactor volume s-1, when considering the BSI and FSI mechanisms, respectively. In addition, the influence of UVA-LEDs intensity on OTC oxidation rate was investigated. UVA-LEDs plates were placed on the top of the NETmix borosilicate window. Moreover, the effect of water matrix was assessed using a secondary effluent from an urban wastewater treatment plant fortified with OTC. OTC oxidation rate was only inhibited in about 1.3 times in the presence of the real matrix, showing the ability of the NETmix to overcome matrix effects due to its unique characteristics. Catalyst film stability over four consecutive reaction cycles was evaluated using synthetic and real matrices fortified with OTC.
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Affiliation(s)
- Jonathan C Espíndola
- Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Department of Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal; CNPq - National Council for Scientific and Technological Development, Brazil
| | - Raquel O Cristóvão
- Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Department of Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal.
| | - Sara G S Santos
- Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Department of Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Rui A R Boaventura
- Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Department of Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Madalena M Dias
- Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Department of Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - José Carlos B Lopes
- Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Department of Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Vítor J P Vilar
- Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Department of Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal.
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Akbari-Adergani B, Saghi MH, Eslami A, Mohseni-Bandpei A, Rabbani M. Removal of dibutyl phthalate from aqueous environments using a nanophotocatalytic Fe, Ag-ZnO/VIS-LED system: modeling and optimization. ENVIRONMENTAL TECHNOLOGY 2018; 39:1566-1576. [PMID: 28514937 DOI: 10.1080/09593330.2017.1332693] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Accepted: 05/16/2017] [Indexed: 06/07/2023]
Abstract
An (Fe, Ag) co-doped ZnO nanostructure was synthesized by a simple chemical co-precipitation method and used for the degradation of dibutyl phthalate (DBP) in aqueous solution under visible light-emitting diode (LED) irradiation. (Fe, Ag) co-doped ZnO nanorods were characterized by powder X-ray diffraction, Fourier transform infrared spectroscopy, UV-VIS diffuse reflectance spectroscopy, elemental mapping, Field emission scanning electron microscopy, transmission electron microscope and Brunauer-Emmett-Teller surface area analysis. A Central Composite Design was used to optimize the reaction parameters for the removal of DBP by the (Fe, Ag) co-doped ZnO nanorods. The four main reaction parameters optimized in this study were the following: pH, time of radiation, concentration of the nanorods and initial DBP concentration. The interaction between the four parameters was studied and modeled using the Design Expert 10 software. A maximum reduction of 95% of DBP was achieved at a pH of 3, a photocatalyst concentration of 150 mg L-1 and a DBP initial DBP concentration of 15 mg L-1. The results showed that the (Fe, Ag) co-doped ZnO nanorods under low power LED irradiation can be used as an effective photocatalyst for the removal of DBP from aqueous solutions.
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Affiliation(s)
- B Akbari-Adergani
- a Nanotechnology Products Laboratory, Water Safety Research Center , Food and Drug Organization, Ministry of Health and Medical Education , Tehran , Iran
| | - M H Saghi
- b Department of Environmental Health Engineering , School of Public Health, Shahid Beheshti University of Medical Sciences , Tehran , Iran
| | - A Eslami
- c Environmental and Occupational Hazards Control Research Center , Shahid Beheshti University of Medical Sciences , Tehran , Iran
| | - A Mohseni-Bandpei
- b Department of Environmental Health Engineering , School of Public Health, Shahid Beheshti University of Medical Sciences , Tehran , Iran
| | - M Rabbani
- d Department of Chemistry , Iran University of Science and Technology , Tehran , Iran
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16
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Behnajady MA, Dadkhah H, Eskandarloo H. Horizontally rotating disc recirculated photoreactor with TiO 2-P25 nanoparticles immobilized onto a HDPE plate for photocatalytic removal of p-nitrophenol. ENVIRONMENTAL TECHNOLOGY 2018; 39:1061-1070. [PMID: 28412884 DOI: 10.1080/09593330.2017.1320431] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Accepted: 04/02/2017] [Indexed: 06/07/2023]
Abstract
In this study, a horizontally rotating disc recirculated (HRDR) photoreactor equipped with two UV lamps (6 W) was designed and fabricated for photocatalytic removal of p-nitrophenol (PNP). Photocatalyst (TiO2) nanoparticles were immobilized onto a high-density polyethylene (HDPE) disc, and PNP containing solution was allowed to flow (flow rate of 310 mL min-1) in radial direction along the surface of the rotating disc illuminated with UV light. The efficiency of direct photolysis and photocatalysis and the effect of rotating speed on the removal of PNP were studied in the HRDR photoreactor. It was found that TiO2-P25 nanoparticles are needed for the effective removal of PNP and there was an optimum rotating speed (450 rpm) for the efficient performance of the HRDR photoreactor. Then effects of operational variables on the removal efficiency were optimized using response surface methodology. The results showed that the predicted values of removal efficiency are consistent with experimental results with an R2 of 0.9656. Optimization results showed that maximum removal percent (82.6%) was achieved in the HRDR photoreactor at the optimum operational conditions. Finally, the reusability of the HRDR photoreactor was evaluated and the results showed high reusability and stability without any significant decrease in the photocatalytic removal efficiency.
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Affiliation(s)
- Mohammad A Behnajady
- a Department of Chemistry , Tabriz Branch, Islamic Azad University , Tabriz , Iran
| | - Hojjat Dadkhah
- a Department of Chemistry , Tabriz Branch, Islamic Azad University , Tabriz , Iran
| | - Hamed Eskandarloo
- b School of Chemistry, College of Science , University of Tehran , Tehran , Iran
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Stewart BM, Miller ME, Kempisty DM, Stubbs J, Harper WF. Oxidation of tartrazine with ultraviolet light emitting diodes: pH and duty cycles effects. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2018; 77:1651-1659. [PMID: 29595167 DOI: 10.2166/wst.2018.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The presence of tartrazine (TAR) in the water cycle poses serious threats to human health. This study investigated the used of light emitting diodes (LEDs) in the advanced oxidation of TAR under different pH and duty cycle (DC) conditions. The first order reaction rate constant for TAR oxidation was positively correlated with DC, negatively correlated with pH, and typically greatest at pH 6. Chemical byproduct analysis indicated that OH addition, H abstraction, and electron transfer without molecule transfer were among the relevant reaction mechanisms for TAR degradation. Six byproducts were identified, four were reported for the first time, and two demonstrated that TAR rings were cleaved. This research is the first to determine the optimal pH for UVLED-driven oxidation of TAR and the first to identify new TAR-related byproducts from UVLED-based water treatment.
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Affiliation(s)
- Brandon M Stewart
- Environmental Engineering and Science Program, Department of Systems Engineering and Management, Air Force Institute of Technology, 2950 Hobson Way, Wright-Patterson AFB, OH 45433, USA E-mail:
| | - Michael E Miller
- Environmental Engineering and Science Program, Department of Systems Engineering and Management, Air Force Institute of Technology, 2950 Hobson Way, Wright-Patterson AFB, OH 45433, USA E-mail:
| | - David M Kempisty
- Environmental Engineering and Science Program, Department of Systems Engineering and Management, Air Force Institute of Technology, 2950 Hobson Way, Wright-Patterson AFB, OH 45433, USA E-mail:
| | - John Stubbs
- Environmental Engineering and Science Program, Department of Systems Engineering and Management, Air Force Institute of Technology, 2950 Hobson Way, Wright-Patterson AFB, OH 45433, USA E-mail:
| | - Willie F Harper
- Environmental Engineering and Science Program, Department of Systems Engineering and Management, Air Force Institute of Technology, 2950 Hobson Way, Wright-Patterson AFB, OH 45433, USA E-mail:
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18
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Okawa A, Yoshida R, Isozaki T, Shigesato Y, Matsushita Y, Suzuki T. Photocatalytic oxidation of benzene in a microreactor with immobilized TiO2 thin films deposited by sputtering. CATAL COMMUN 2017. [DOI: 10.1016/j.catcom.2017.06.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
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20
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Sergejevs A, Clarke CT, Allsopp DWE, Marugan J, Jaroenworaluck A, Singhapong W, Manpetch P, Timmers R, Casado C, Bowen CR. A calibrated UV-LED based light source for water purification and characterisation of photocatalysis. Photochem Photobiol Sci 2017; 16:1690-1699. [DOI: 10.1039/c7pp00269f] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Photocatalysis can become a cost effective industrial process for water cleaning. This paper describes the design and performance of a novel LED-based light engine for this purpose.
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Affiliation(s)
- A. Sergejevs
- Department of Electronic and Electrical Engineering
- University of Bath
- Bath BA2 7AY
- UK
| | - C. T. Clarke
- Department of Electronic and Electrical Engineering
- University of Bath
- Bath BA2 7AY
- UK
| | - D. W. E. Allsopp
- Department of Electronic and Electrical Engineering
- University of Bath
- Bath BA2 7AY
- UK
| | | | - A. Jaroenworaluck
- National Metal and Materials Technology Center (MTEC)
- Pathum Thani 12120
- Thailand
| | - W. Singhapong
- National Metal and Materials Technology Center (MTEC)
- Pathum Thani 12120
- Thailand
| | - P. Manpetch
- National Metal and Materials Technology Center (MTEC)
- Pathum Thani 12120
- Thailand
| | | | - C. Casado
- Universidad Rey Juan Carlos
- Madrid
- Spain
| | - C. R. Bowen
- Materials and Structures
- Department of Mechanical Engineering
- University of Bath
- UK
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21
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Mohammadzadeh M, Behnajady MA, Eskandarloo H. Hybridized advanced oxidation processes involving UV/H2O2/S2O 8 2- for photooxidative removal of p-nitrophenol in an annular continuous-flow photoreactor. KINETICS AND CATALYSIS 2016. [DOI: 10.1134/s0023158416060021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Eskandarloo H, Badiei A, Behnajady MA, Mohammadi Ziarani G. Hybrid Homogeneous and Heterogeneous Photocatalytic Processes for Removal of Triphenylmethane Dyes: Artificial Neural Network Modeling. CLEAN - SOIL, AIR, WATER 2016; 44:809-817. [DOI: 10.1002/clen.201400449] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Affiliation(s)
- Hamed Eskandarloo
- School of Chemistry, College of Science; University of Tehran; Tehran Iran
| | - Alireza Badiei
- School of Chemistry, College of Science; University of Tehran; Tehran Iran
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Zeghioud H, Khellaf N, Djelal H, Amrane A, Bouhelassa M. Photocatalytic Reactors Dedicated to the Degradation of Hazardous Organic Pollutants: Kinetics, Mechanistic Aspects, and Design – A Review. CHEM ENG COMMUN 2016. [DOI: 10.1080/00986445.2016.1202243] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Hichem Zeghioud
- Department of Process Engineering, Faculty of Engineering, Badji Mokhtar University, Annaba, Algeria
- Laboratory of Organic Synthesis-Modeling and Optimization of Chemical Processes, Badji Mokhtar University, Annaba, Algeria
| | - Nabila Khellaf
- Department of Process Engineering, Faculty of Engineering, Badji Mokhtar University, Annaba, Algeria
- Laboratory of Organic Synthesis-Modeling and Optimization of Chemical Processes, Badji Mokhtar University, Annaba, Algeria
| | - Hayet Djelal
- Ecole des Métiers de l'Environnement, Campus de Ker Lann, Bruz, France
- Université Européenne de Bretagne, 5 Boulevard Laennec, Rennes, France
| | - Abdeltif Amrane
- Université Européenne de Bretagne, 5 Boulevard Laennec, Rennes, France
- Université de Rennes 1, ENSCR, CNRS, UMR, Allée de Beaulieu, Rennes Cedex, France
| | - Mohammed Bouhelassa
- LIPE, Faculty of Pharmaceutical Process Engineering, Constantine 3 University, Algeria
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Eskandarloo H, Hashempour M, Vicenzo A, Franz S, Badiei A, Behnajady MA, Bestetti M. High-temperature stable anatase-type TiO2 nanotube arrays: A study of the structure–activity relationship. APPLIED CATALYSIS B: ENVIRONMENTAL 2016; 185:119-132. [DOI: 10.1016/j.apcatb.2015.11.048] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
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25
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Shakouri A, Heris SZ, Etemad SG, Mousavi SM. Photocatalytic activity performance of novel cross-linked PEBAX copolymer nanocomposite on azo dye degradation. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.01.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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26
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Eskandarloo H, Badiei A, Behnajady MA, Tavakoli A, Ziarani GM. Ultrasonic-assisted synthesis of Ce doped cubic-hexagonal ZnTiO3 with highly efficient sonocatalytic activity. ULTRASONICS SONOCHEMISTRY 2016; 29:258-269. [PMID: 26585006 DOI: 10.1016/j.ultsonch.2015.10.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Revised: 08/20/2015] [Accepted: 10/05/2015] [Indexed: 06/05/2023]
Abstract
Ce doped ZnTiO3 as a novel catalyst with highly efficient and stable sonocatalytic activity was synthesized via an ultrasound-assisted sol-gel method using non-ionic surfactant Pluronic F127 as structure directing agent. Synthesized samples were characterized by using various techniques, such as XRD, TEM, SEM, EDX, XRF, BET, DRS, and PL, and their sonocatalytic activity studied toward degradation of p-Nitrophenol as a model organic compound. The synthesized mesoporous Ce/ZnTiO3 had mixed cubic-hexagonal phase with large surface area (118.2 m(2) g(-1)) and narrow pore size distribution (4.9 nm). The effects of cerium concentration, calcination temperature, and calcination time on the structure and the sonocatalytic activity of Ce/ZnTiO3 were studied in detail. XRD results were suggested that the relation between the phase structure and the catalytic activity is considerable. Significant decrease in band-gap and PL intensity was observed with increasing the cerium concentration in the ZnTiO3. It became clear that the Ce/ZnTiO3 (0.81 mol%) shows high sonocatalytic activity compared with pure ZnTiO3 and other Ce/ZnTiO3 samples as well as commercial TiO2-P25. The possible mechanism for the enhanced sonocatalytic activity of Ce/ZnTiO3 was discussed in details. The electrical energy consumption was also considered during sonocatalytic experiments.
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Affiliation(s)
- Hamed Eskandarloo
- School of Chemistry, College of Science, University of Tehran, Tehran, Iran
| | - Alireza Badiei
- School of Chemistry, College of Science, University of Tehran, Tehran, Iran.
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Das S, Srivastava VC. Microfluidic-based photocatalytic microreactor for environmental application: a review of fabrication substrates and techniques, and operating parameters. Photochem Photobiol Sci 2016; 15:714-30. [DOI: 10.1039/c5pp00469a] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
This article gives an overview of photocatalytic microreactors with an application in environmental science, in particular, the degradation of different toxic dyes within microchannels.
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Affiliation(s)
- Susmita Das
- Department of Chemical Engineering
- Indian Institute of Technology Roorkee
- Roorkee
- India
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28
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Eskandarloo H, Badiei A, Behnajady MA, Mohammadi Ziarani G. Photo and Chemical Reduction of Copper onto Anatase-Type TiO2Nanoparticles with Enhanced Surface Hydroxyl Groups as Efficient Visible Light Photocatalysts. Photochem Photobiol 2015; 91:797-806. [PMID: 25809844 DOI: 10.1111/php.12455] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Accepted: 03/13/2015] [Indexed: 12/01/2022]
Affiliation(s)
- Hamed Eskandarloo
- School of Chemistry; College of Science; University of Tehran; Tehran Iran
| | - Alireza Badiei
- School of Chemistry; College of Science; University of Tehran; Tehran Iran
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