Carbamazepine degradation using a N-doped TiO 2 coated photocatalytic membrane reactor: Influence of physical parameters

Horovitz, Inna; Avisar, Dror; Baker, Mark; Grilli, Rossana; Lozzi, L.; Camillo, Daniela Di; Mamane, Hadas

doi:10.1016/j.jhazmat.2016.02.008

Cited by 123 publications

(57 citation statements)

References 58 publications

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“…When the photocatalyst is coated on the PM the membrane permeability can decrease. As reported by Horovitz et al [53], coating of Al 2 O 3 membrane with N-doped TiO 2 decreased its permeability by 50% and 12%, depending on membrane pore size. Other authors evidenced that membrane coating can increase the permeability by rendering the interface more hydrophilic [54].…”

Section: Pmrs With Immobilized Photocatalyst (Pmrs With Pms)supporting

confidence: 58%

“…In the PMR configuration, where a PM has a photoactive support layer and the light source is placed on the permeate side the most common membrane material is ceramics. In reference [53] the authors used a PM made of α-Al 2 O 3 and TiO 2 photocatalyst modified with nitrogen for the degradation of carbamazepine. Figure 6 shows the PMR used in this study.…”

Section: Applications Of Pmrs With Pmsmentioning

confidence: 99%

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Overview of Photocatalytic Membrane Reactors in Organic Synthesis, Energy Storage and Environmental Applications

et al. 2019

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This paper presents an overview of recent reports on photocatalytic membrane reactors (PMRs) in organic synthesis as well as water and wastewater treatment. A brief introduction to slurry PMRs and the systems equipped with photocatalytic membranes (PMs) is given. The methods of PM production are also presented. Moreover, the process parameters affecting the performance of PMRs are characterized. The applications of PMRs in organic synthesis are discussed, including photocatalytic conversion of CO2, synthesis of KA oil by photocatalytic oxidation, conversion of acetophenone to phenylethanol, synthesis of vanillin and phenol, as well as hydrogen production. Furthermore, the configurations and applications of PMRs for removal of organic contaminants from model solutions, natural water and municipal or industrial wastewater are described. It was concluded that PMRs represent a promising green technology; however, before the application in industry, additional studies are still required. These should be aimed at improvement of process efficiency, mainly by development and application of visible light active photocatalysts and novel membranes resistant to the harsh conditions prevailing in these systems.

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Section: Pmrs With Immobilized Photocatalyst (Pmrs With Pms)supporting

confidence: 58%

Section: Applications Of Pmrs With Pmsmentioning

confidence: 99%

Overview of Photocatalytic Membrane Reactors in Organic Synthesis, Energy Storage and Environmental Applications

et al. 2019

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“…TiO 2 -based photocatalyst is the most utilized photocatalyst in PMR due to its distinguishing features such as high activity, high chemical stability, low cost and low toxicity. Horovitz et al [57] developed an immobilized PMR system with N-doped-TiO 2 -Al 2 O 3 membrane and investigated its photocatalytic performance in terms of carbamazepine degradation. The results showed that doping nitrogen into TiO 2 significantly improved the degradation efficiency under full spectrum light.…”

Section: Structures and Properties Of Photocatalystmentioning

confidence: 99%

“…Thus, great attentions have been paid to developing the visible-light-driven (VLD) photocatalyst. To date, some researchers have employed the VLD photocatalyst in PMR system [57,94], increasing the potential for large-scale industrial application.…”

Section: Photocatalyst Loadingmentioning

confidence: 99%

Photocatalytic Membrane Reactors (PMRs) in Water Treatment: Configurations and Influencing Factors

et al. 2017

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Abstract:The lack of access to clean water remains a severe issue all over the world. Coupling photocatalysis with the membrane separation process, which is known as a photocatalytic membrane reactor (PMR), is promising for water treatment. PMR has developed rapidly during the last few years, and this paper presents an overview of the progress in the configuration and operational parameters of PMRs. Two main configurations of PMRs (PMRs with immobilized photocatalyst; PMRs with suspended photocatalyst) are comprehensively described and characterized. Various influencing factors on the performance of PMRs, including photocatalyst, light source, water quality, aeration and membrane, are detailed. Moreover, a discussion on the current problems and development prospects of PMRs for practical application are presented.

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“…The procedure of coating can be performed by using different methods [24] such as dip-coating, electro-spraying of photocatalyst particles, magnetron sputtering of the photocatalyst, and deposition of gas phase photocatalyst NPs. The main drawbacks of using this approach are associated to the diminution of membrane permeability after the coating procedures and to photocatalyst leaching during the photocatalytic runs [25].…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic Membranes in Photocatalytic Membrane Reactors

et al. 2018

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The present work gives a critical overview of the recent progresses and new perspectives in the field of photocatalytic membranes (PMs) in photocatalytic membrane reactors (PMRs), thus highlighting the main advantages and the still existing limitations for large scale applications in the perspective of a sustainable growth. The classification of the PMRs is mainly based on the location of the photocatalyst with respect to the membranes and distinguished in: (i) PMRs with photocatalyst solubilized or suspended in solution and (ii) PMRs with photocatalyst immobilized in/on a membrane (i.e., a PM). The main factors affecting the two types of PMRs are deeply discussed. A multidisciplinary approach for the progress of research in PMs and PMRs is presented starting from selected case studies. A special attention is dedicated to PMRs employing dispersed TiO 2 confined in the reactor by a membrane for wastewater treatment. Moreover, the design and development of efficient photocatalytic membranes by the heterogenization of polyoxometalates in/on polymeric membranes is discussed for applications in environmental friendly advanced oxidation processes and fine chemical synthesis.The Process Intensification (PI) strategy [5,6] is recognized as an efficient tool for the realization of this sustainable growth. The PI strategy comprises an innovative equipment design and process development methods, being able to improve manufacturing and processing, by decreasing production costs, equipment size, energy consumption, waste generation, while improving process efficiency, remote control, information fluxes, and process flexibility [7]. MRs are specific example of reactive separations well responding to the requests of the PI strategy, coupling a reaction with a membrane separation process, not only at equipment level, but by realizing functional synergies between the operations involved [6]. This synergic combination can have several advantages in comparison with traditional reactors depending on the specific functions performed by the membrane [8]. With respect to traditional reactive separations (e.g., reactive distillation, reactive adsorption, reactive crystallization/precipitation), MRs have the advantage to use intrinsically more clean and energy-efficient separation routes [6]. Membrane separations are in fact typically characterized by lower operating temperature, in comparison with thermal separation processes, such as distillation, and they might offer a solution in the case of catalysts or products with a limited thermal stability. Additionally, membrane separation processes are able to separate nonvolatile components by a difference in dimensions, charge, or volatility.The selective transport of the products and/or the reagents through the membrane can increase the yield and/or the selectivity of some processes. Typical examples are esterification and de-hydrogenation reactions (thermodynamically controlled reactions), in which the removal of water or hydrogen, respectively, increases the reaction yield. The extractio...

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Carbamazepine degradation using a N-doped TiO 2 coated photocatalytic membrane reactor: Influence of physical parameters

Cited by 123 publications

References 58 publications

Overview of Photocatalytic Membrane Reactors in Organic Synthesis, Energy Storage and Environmental Applications

Overview of Photocatalytic Membrane Reactors in Organic Synthesis, Energy Storage and Environmental Applications

Photocatalytic Membrane Reactors (PMRs) in Water Treatment: Configurations and Influencing Factors

Photocatalytic Membranes in Photocatalytic Membrane Reactors

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