Application of advanced materials in sonophotocatalytic processes for the remediation of environmental pollutants
| Autor: | Seung Jun Lee, Subramanian Arulmani, Muthupandian Ashokkumar, Jayaraman Theerthagiri, K. Karuppasamy, Selvakumar Veeralakshmi, Myong Yong Choi |
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| Rok vydání: | 2021 |
| Předmět: |
Pollutant
021110 strategic defence & security studies Environmental Engineering Waste management Environmental remediation Health Toxicology and Mutagenesis 0211 other engineering and technologies 02 engineering and technology 010501 environmental sciences Reuse Contamination 01 natural sciences Pollution Industrial wastewater treatment Photocatalysis Environmental Chemistry Environmental science Degradation (geology) Sewage treatment Waste Management and Disposal 0105 earth and related environmental sciences |
| Zdroj: | Journal of Hazardous Materials. 412:125245 |
| ISSN: | 0304-3894 |
| DOI: | 10.1016/j.jhazmat.2021.125245 |
| Popis: | Significant advances in various industrial processes have resulted in the discharge of toxic pollutants into the environment. Consequently, it is essential to develop efficient wastewater treatment processes to reduce water contamination and increase recycling/reuse. Photocatalytic degradation is considered as an efficient method for the degradation of toxic pollutants in industrial wastewater. However, the use of photocatalytic approaches is associated with numerous limitations, such as lengthy procedures and the necessity for large amounts of catalysts. Hence, it has been proposed that photocatalysis could be combined with other techniques, including sonolysis, electrochemical, photothermal, microwave, ultrafiltration, and biological reactor. The integration of photocatalysis with sonolysis could be remarkably beneficial for environmental remediation. The combination of these processes has the advantages of using uniformly dispersed catalysts, regeneration of the catalyst surface, improved mass transfer, enhanced surface area due to smaller catalyst particles, and production of more active radicals for the degradation of organic pollutants. In this review, an overview on employing sonophotocatalysis for the removal of toxic organic contaminants from aqueous environments is provided. Additionally, the limitations of photocatalysis alone and the fundamental sonophotocatalytic mechanistic pathways are discussed. The importance of utilizing advanced two-dimensional (2D) semiconductor materials in sonophotocatalysis and the common synthetic approaches for the preparation of 2D materials are also highlighted. Lastly, the review provides comprehensive insights into different materials based on metal oxides, chalcogenides, graphene, and metal organic frameworks (MOFs), which are involved in sonophotocatalytic processes employed for the remediation of environmental pollutants. |
| Databáze: | OpenAIRE |
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