Role of catalyst supports in biocatalysis

Manikandan, Soumya Koippully; Giannakoudakis, Dimitrios A.; Prekodravac, Jovana; Nair, Vaishakh; Colmenares, Juan Carlos

doi:10.1002/jctb.7177

Cited by 16 publications

(7 citation statements)

References 155 publications

(212 reference statements)

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“…Although, the photocatalytic performance of “pure” bismuth oxyhalide materials was low. Hence, the functionalization/activation, as for instance the formation of oxygen vacancies and defects by chemical treatment/modifications [ 70 , 74 ] or the designing of composites with conductive phases such as graphite or graphitic carbon nitride, in order to enhance the electron delocalization and as a result to prevent the e − /h + (charge carries) recombination [ 51 , 55 , 62 , 70 , 75 , 76 ], can affect positively the photocatalytic environmental remediation efficiency, as it occurred in this study where lignin-derived biochar was used as a filler towards photo-active nano-composites formation.…”

Section: Resultsmentioning

confidence: 99%

Composites of Lignin-Based Biochar with BiOCl for Photocatalytic Water Treatment: RSM Studies for Process Optimization

et al. 2023

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Textile effluents pose a massive threat to the aquatic environment, so, sustainable approaches for environmentally friendly multifunctional remediation methods degradation are still a challenge. In this study, composites consisting of bismuth oxyhalide nanoparticles, specifically bismuth oxychloride (BiOCl) nanoplatelets, and lignin-based biochar were synthesized following a one-step hydrolysis synthesis. The simultaneous photocatalytic and adsorptive remediation efficiency of the Biochar–BiOCl composites were studied for the removal of a benchmark azo anionic dye, methyl orange dye (MO). The influence of various parameters (such as catalyst dosage, initial dye concentration, and pH) on the photo-assisted removal was carried out and optimized using the Box–Behnken Design of RSM. The physicochemical properties of the nanomaterials were characterized by scanning electron microscopy, energy-dispersive X-ray spectroscopy, X-ray diffraction, thermogravimetric analysis, nitrogen sorption, and UV–Vis diffuse reflectance spectroscopy (DRS). The maximum dye removal was observed at a catalyst dosage of 1.39 g/L, an initial dye concentration of 41.8 mg/L, and a pH of 3.15. The experiment performed under optimized conditions resulted in 100% degradation of the MO after 60 min of light exposure. The incorporation of activated biochar had a positive impact on the photocatalytic performance of the BiOCl photocatalyst for removing the MO due to favorable changes in the surface morphology, optical absorption, and specific surface area and hence the dispersion of the photo-active nanoparticles leading to more photocatalytic active sites. This study is within the frames of the design and development of green-oriented nanomaterials of low cost for advanced (waste)water treatment applications.

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Section: Resultsmentioning

confidence: 99%

Composites of Lignin-Based Biochar with BiOCl for Photocatalytic Water Treatment: RSM Studies for Process Optimization

et al. 2023

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“…Enzymes, as natural catalysts, have been widely applied in terms of their unparalleled advantages, including good biocompatibility, regio-/stereoselectivity, mild reaction conditions, and cost-effectiveness . Nevertheless, enzymes are sensitive to environmental conditions, such as solution pH and temperature, which results in the lack of long-term stability . In addition, difficulties in recovery and reuse greatly hinder their practical application.…”

Section: Applications Of Hollow Cofsmentioning

confidence: 99%

“…In addition, difficulties in recovery and reuse greatly hinder their practical application. To address the aforementioned issues, enzyme immobilization, which can simplify operation, achieve efficient recovery, and enhance the stability of enzymes, has become a burgeoning scientific field. , Considering their specific structure, hollow COFs have been recognized as a promising platform for enzyme immobilization . On the one hand, the hollow cavity can allow the internal contents to move around freely.…”

Section: Applications Of Hollow Cofsmentioning

confidence: 99%

“…86 Nevertheless, enzymes are sensitive to environmental conditions, such as solution pH and temperature, which results in the lack of long-term stability. 87 In addition, difficulties in recovery and reuse greatly hinder their practical application. To address the aforementioned issues, enzyme immobilization, which can simplify operation, achieve efficient recovery, and enhance the stability of enzymes, has become a burgeoning scientific field.…”

Section: Applications Of Hollow Cofsmentioning

confidence: 99%

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Nanoarchitectonics of Hollow Covalent Organic Frameworks: Synthesis and Applications

et al. 2023

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Hollow covalent organic frameworks (COFs) have gained significant attention because of their specific properties, including enhanced surface-to-volume ratio, large surface area, hierarchical structure, highly ordered nanostructures, and excellent chemical stability. These intrinsic characteristics endow hollow COFs with fascinating physicochemical properties and make them highly attractive for widespread applications, such as catalysis, energy storage, drug delivery, therapy, sensing, and environmental remediation. This review focuses on the recent developments in the synthesis of hollow COFs and their derivatives. In addition, their practical applications in various fields are summarized. Finally, challenges and future opportunities in terms of their synthetic methodologies and practical applications are discussed. Hollow COFs are expected to play an important role in the future of materials science.

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“…Biochar-immobilized microorganisms are produced through the adsorption of microbes on biochar, entrapment with the help of crosslinking materials, or a combination of both methods. Adsorption is a simple and inexpensive method for immobilizing microorganisms [ 129 , 130 ]. Adsorbed cells colonize the biochar after being transferred from a bulk solution to its surface.…”

Section: Microbial Cell-immobilized Biochar For the Removal Of Metal ...mentioning

confidence: 99%

Effective Usage of Biochar and Microorganisms for the Removal of Heavy Metal Ions and Pesticides

et al. 2023

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The bioremediation of heavy metal ions and pesticides is both cost-effective and environmentally friendly. Microbial remediation is considered superior to conventional abiotic remediation processes, due to its cost-effectiveness, decrement of biological and chemical sludge, selectivity toward specific metal ions, and high removal efficiency in dilute effluents. Immobilization technology using biochar as a carrier is one important approach for advancing microbial remediation. This article provides an overview of biochar-based materials, including their design and production strategies, physicochemical properties, and applications as adsorbents and support for microorganisms. Microorganisms that can cope with the various heavy metal ions and/or pesticides that enter the environment are also outlined in this review. Pesticide and heavy metal bioremediation can be influenced by microbial activity, pollutant bioavailability, and environmental factors, such as pH and temperature. Furthermore, by elucidating the interaction mechanisms, this paper summarizes the microbe-mediated remediation of heavy metals and pesticides. In this review, we also compile and discuss those works focusing on the study of various bioremediation strategies utilizing biochar and microorganisms and how the immobilized bacteria on biochar contribute to the improvement of bioremediation strategies. There is also a summary of the sources and harmful effects of pesticides and heavy metals. Finally, based on the research described above, this study outlines the future scope of this field.

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Role of catalyst supports in biocatalysis

Cited by 16 publications

References 155 publications

Composites of Lignin-Based Biochar with BiOCl for Photocatalytic Water Treatment: RSM Studies for Process Optimization

Composites of Lignin-Based Biochar with BiOCl for Photocatalytic Water Treatment: RSM Studies for Process Optimization

Nanoarchitectonics of Hollow Covalent Organic Frameworks: Synthesis and Applications

Effective Usage of Biochar and Microorganisms for the Removal of Heavy Metal Ions and Pesticides

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