Enhanced catalytic degradation of amoxicillin with TiO2–Fe3O4 composites via a submerged magnetic separation membrane photocatalytic reactor (SMSMPR)

Li, Qilong; Kong, Hui; Jia, Rongrong; Shao, Jiahui; He, Yiliang

doi:10.1039/c9ra00158a

Cited by 24 publications

(13 citation statements)

References 34 publications

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“…In the same way, Li et al [108] used graphene oxide, which is a highly conductive and magnetic recovery component, as support for Fe 3 O 4 and TiO 2 nanoparticles to degrade amoxicillin by means of a photo-Fenton process in a photocatalytic submerged magnetic separation membrane reactor of their own elaboration. The results showed removal of amoxicillin of approximately 90% after 120 min of reaction under UV irradiation.…”

Section: Photo-fentonmentioning

confidence: 99%

Heterogeneous Advanced Oxidation Processes: Current Approaches for Wastewater Treatment

2022

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Nowadays, water pollution is one of the most dangerous environmental problems in the world. The presence of the so-called emerging pollutants in the different water bodies, impossible to eliminate through conventional biological and physical treatments used in wastewater treatment plants due to their persistent and recalcitrant nature, means that pollution continues growing throughout the world. The presence of these emerging pollutants involves serious risks to human and animal health for aquatic and terrestrial organisms. Therefore, in recent years, advanced oxidation processes (AOPs) have been postulated as a viable, innovative and efficient technology for the elimination of these types of compounds from water bodies. The oxidation/reduction reactions triggered in most of these processes require a suitable catalyst. The most recent research focuses on the use and development of different types of heterogeneous catalysts, which are capable of overcoming some of the operational limitations of homogeneous processes such as the generation of metallic sludge, difficult separation of treated water and narrow working pH. This review details the current advances in the field of heterogeneous AOPs, Fenton processes and photocatalysts for the removal of different types of emerging pollutants.

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Section: Photo-fentonmentioning

confidence: 99%

Heterogeneous Advanced Oxidation Processes: Current Approaches for Wastewater Treatment

2022

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“…), а также в виде композитов из TiO2 и углеродных наноматериалов (графит, фуллерен, графен). Конструкции аппаратов для проведения фотокаталитических процессов (фотокаталитических реакторов -ФКР) реализуются в двух основных модификациях: 1 -с фотокатализатором в виде тонкой пленки, закрепленной на инертном носителе, или фотокаталитических наноструктур, внедренных в мембрану, и 2 -с нанопорошковым катализатором (с размерами частиц TiO2 в пределах 20-50 нм), свободно суспендированным в воде [93,94]. В первом случае фотокаталитический модуль может быть достаточно легко удален из реактора, во втором случае требуется дополнительная ступень отделения порошкового катализатора от воды.…”

Section: метод фотокаталитического окисленияunclassified

“…Основными параметрами, влияющими на работу ФКР, являются: концентрация загрязняющих веществ, рН, температура, содержание растворенного кислорода, а также концентрация катализатора, длина волны и интенсивность ультрафиолетового излучения. Проведены успешные испытания ФМР разного масштаба для очистки речной воды, бытовых сточных вод, а также сточных вод от пестицидов, красителей, фармацевтических препаратов, гуминовых и фульвовых кислот, фенолов, парахлоробензоата [93,94].…”

Section: метод фотокаталитического окисленияunclassified

New Composite Materials and Processes for Chemical, Physico-Chemical and Biochemical Technologies of Water Purification

2023

Izv. Vyssh. Uchebn. Zaved. Khim. Khim. Tekhnol.

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In traditional methods of water purification, the use of chemical reagents leads to the appearance of toxic by-products and wastes that require complex energy-consumption processing technologies. In accordance with the principles of sustainable development and “green” technologies, a significant revision of existing water treatment methods is required. The review highlights the main trends of innovative development of water purification and disinfection technologies. Modifications of water treatment agents (flocculants, sorbents, membranes) by integration of nanoparticles, environmentally compatible materials and “smart” composites into traditional structures are described. The use of composite nanoparticles is promising, particularly the use of particles with the “magnetic core – shell” structure, in which functional elements are attached to the surface, that provide the selective capture of contaminants, including pathogenic microorganisms. The existence of the magnetic core makes it possible to manipulate particles by the applied magnetic field, which is important for their complete extraction from the water upon completion of their functions. The use of new composite flocculants containing inorganic and organic components capable of ensuring highly effective capture of contaminants from the water, significantly reduces the volumes of flocculants and generated sludges and therefore allows to reduce the cost of the sludges processing and the harm of their disposal in the environment. New carbon nanostructures and natural polymers have an important role to play. In the new generation membranes, the disperse nanoparticles may provide antibacterial and photocatalytic properties, resulting in the high efficiency of disinfection and purification. A novel trend is the development of hybrid structures of coagulants and membranes with the properties which are regulated by the external stimulus, which are temperature, pH, light, electric, magnetic and electromagnetic fields. The use of such «smart» structures will increase the purification efficiency, reduce energy consumption and water purification waste volumes, due to the decrease in membranes fouling. The use of biopolymers and composites based on plant raw materials for the water purification is attractive due to their natural decontamination under the influence of the components of the environment, such as air, soil micro-organisms and sunlight, but also due to the absence of the secondary pollution. Among innovative chemical water treatment technologies Advanced Oxidation Processes play an important role, in particular, by involving electromagnetic fields and ultrasonic activation. By these methods, harmful organic impurities and pathogens are destroyed without the intensive use of chemicals or the production of toxic by-products. The integration of biochemical wastewater treatment with a microalgae growing system can become a promising waste-free, cost-effective "green" technology.

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“…Simple photocatalytic reactors that use TiO 2 -coated glass beads and a UV lamp to illuminate and activate sites are referred to as slurry/immobilized photocatalytic reactors or fixed-bed photocatalytic reactors [16,48,82]. In recent years, photocatalytic reactors have been upgraded in a variety of ways to increase the irradiated surface area and boost performance.…”

Section: Types Of Ipm Reactorsmentioning

confidence: 99%

“…As a result, the core-shell framework is an efficient way to incorporate the desirable properties of two or more nanomaterials into a single nanocomposite. However, adding semiconductor dopants can alter the surface properties of TiO 2 catalysts, such as surface area and surface acidity [16,41]. Wang et al [68] used a hydrothermal method followed by co-precipitation to develop anatase-structured TiO 2 nanoparticles (Fe/TiO 2 ) with elongated morphological characteristics.…”

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confidence: 99%

Prospects of Synthesized Magnetic TiO2-Based Membranes for Wastewater Treatment: A Review

et al. 2021

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Global accessibility to clean water has stressed the need to develop advanced technologies for the removal of toxic organic and inorganic pollutants and pathogens from wastewater to meet stringent discharge water quality limits. Conventionally, the high separation efficiencies, relative low costs, small footprint, and ease of operation associated with integrated photocatalytic-membrane (IPM) technologies are gaining an all-inclusive attention. Conversely, photocatalysis and membrane technologies face some degree of setbacks, which limit their worldwide application in wastewater settings for the treatment of emerging contaminants. Therefore, this review elucidated titanium dioxide (TiO2), based on its unique properties (low cost, non-toxicity, biocompatibility, and high chemical stability), to have great potential in engineering photocatalytic-based membranes for reclamation of wastewater for re-use. The environmental pathway of TiO2 nanoparticles, membranes and configuration types, modification process, characteristics, and applications of IPMs in water settings are discussed. Future research and prospects of magnetized TiO2-based membrane technology is highlighted as a viable water purification technology to mitigate fouling in the membrane process and photocatalyst recoverability. In addition, exploring life cycle assessment research would also aid in utilizing the concept and pressing for large-scale application of this technology.

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Enhanced catalytic degradation of amoxicillin with TiO₂–Fe₃O₄ composites via a submerged magnetic separation membrane photocatalytic reactor (SMSMPR)

Abstract: With a TiO2–Fe3O4 composite as the catalyst, amoxicillin was degraded via a photo-Fenton process using a submerged magnetic separation membrane photocatalytic reactor.

Cited by 24 publications

References 34 publications

Heterogeneous Advanced Oxidation Processes: Current Approaches for Wastewater Treatment

Heterogeneous Advanced Oxidation Processes: Current Approaches for Wastewater Treatment

New Composite Materials and Processes for Chemical, Physico-Chemical and Biochemical Technologies of Water Purification

Prospects of Synthesized Magnetic TiO2-Based Membranes for Wastewater Treatment: A Review

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