Facile preparation of BiOBr/cellulose composites by in situ synthesis and its enhanced photocatalytic activity under visible-light

Du, Minxing; Du, Yi; Feng, Yibing; Yang, Kai; Lv, Xingjie; Jiang, Nan; Liu, Yang

doi:10.1016/j.carbpol.2018.04.092

Cited by 70 publications

(18 citation statements)

References 30 publications

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“… 21 , 27 Cellulose-nanostructure-based characteristics lead to the strong binding of inorganic semiconductors on the surface, supporting the high stability of nanomaterials. 28 − 30 …”

Section: Introductionmentioning

confidence: 99%

Highly Efficient Industrial Dye Degradation, Bactericidal Properties, and In Silico Molecular Docking Analysis of Ag/Cellulose-Doped CuO Nanostructures

et al. 2022

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In this research, CuO nanostructures doped with Ag and cellulose nanocrystals (CNC) were synthesized using a facile coprecipitation technique. In this work, we doped Ag into fixed quantities of CNC and CuO to improve the photocatalytic, catalytic, and antibacterial activity. It was noted that catalytic activity increased upon doping, which was attributed to the formation of nanorods and a pH effect, while the reverse trend was observed in photocatalytic activity. The addition of Ag and CNC dopants into CuO improved the bactericidal efficacy for S. aureus and E. coli . In addition, to obtain insight into the possible mechanism behind their biocidal effects, molecular docking studies were conducted against specific enzyme targets: namely, dihydrofolate reductase from E. coli and DNA gyrase from S. aureus . This study suggested that codoped CuO could be highly efficient in the cleaning of polluted water and antibacterial applications.

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“… 21 , 27 Cellulose-nanostructure-based characteristics lead to the strong binding of inorganic semiconductors on the surface, supporting the high stability of nanomaterials. 28 − 30 …”

Section: Introductionmentioning

confidence: 99%

Highly Efficient Industrial Dye Degradation, Bactericidal Properties, and In Silico Molecular Docking Analysis of Ag/Cellulose-Doped CuO Nanostructures

et al. 2022

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“…The e - and h + act on the surrounding O 2 and H 2 O to convert them into active oxygen species, such as •OH and •O 2− . Electrons, holes, and active oxygen species can degrade organic pollutants into CO 2 and H 2 O, and then solve the environmental pollution problems caused by these organic pollutants [ 18 , 19 , 20 ]. TiO 2 nanoparticle (NP) is an excellent type of candidates used as photocatalyst in decontamination of organic compounds, due to the excellent chemical stability, non-toxicity, and excellent photocatalytic performance [ 21 , 22 ].…”

Section: Introductionmentioning

confidence: 99%

Construction of the Cellulose Nanofibers (CNFs) Aerogel Loading TiO2 NPs and Its Application in Disposal of Organic Pollutants

Zhang

Qin

et al. 2021

Polymers

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Aerogels have been widely used in the adsorption of pollutants because of their large specific surface area. As an environmentally friendly natural polysaccharide, cellulose is a good candidate for the preparation of aerogels due to its wide sources and abundant polar groups. In this paper, an approach to construct cellulose nanofibers aerogels with both the good mechanical property and the high pollutants adsorption capability through chemical crosslinking was explored. On this basis, TiO2 nanoparticles were loaded on the aerogel through the sol-gel method followed by the hydrothermal method, thereby the enriched pollutants in the aerogel could be degraded synchronously. The chemical cross-linker not only helps build the three-dimensional network structure of aerogels, but also provides loading sites for TiO2. The degradation efficiency of pollutants by the TiO2@CNF Aerogel can reach more than 90% after 4 h, and the efficiency is still more than 70% after five cycles. The prepared TiO2@CNF Aerogels have high potential in the field of environmental management, because of the high efficiency of treating organic pollutes and the sustainability of the materials. The work also provides a choice for the functional utilization of cellulose, offering a valuable method to utilize the large amount of cellulose in nature.

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“…The weight loss above 100 °C is connected to evaporation of adsorbed water and the subsequent weight loss starting 370 °C corresponds to the decomposition of cellulose. 75 From the TG analysis, the mass of the Bi 4 O 5 Br 2 /BiOBr coating on cellulose was determined to be 11 wt %. The BET surface area was found to be 0.9 m 2 •g −1 for unmodified membrane with a slight increase for cellulose membrane with immobilized catalyst to 1.8 m 2 •g −1 .…”

Section: ■ Introductionmentioning

confidence: 99%

CelluPhot: Hybrid Cellulose−Bismuth Oxybromide Membrane for Pollutant Removal

Onwumere

Piątek

Budnyak

et al. 2020

ACS Appl. Mater. Interfaces

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The simultaneous removal of organic and inorganic pollutants from wastewater is a complex challenge and requires usually several sequential processes. Here, we demonstrate the fabrication of a hybrid material that can fulfill both tasks: (i) the adsorption of metal ions due to the negative surface charge, and (ii) photocatalytic decomposition of organic compounds. The bioinorganic hybrid membrane consists of cellulose fibers to ensure mechanical stability and of Bi 4 O 5 Br 2 /BiOBr nanosheets. The composite is synthesized at low temperature of 115 °C directly on the cellulose membrane (CM) in order to maintain the carboxylic and hydroxyl groups on the surface that are responsible for the adsorption of metal ions. The composite can adsorb both Co(II) and Ni(II) ions and the kinetic study confirmed a good agreement of experimental data with the pseudo-second-order equation kinetic model. CM/Bi 4 O 5 Br 2 /BiOBr showed higher affinity to Co(II) ions than to Ni(II) ions from diluted aqueous solutions. The bioinorganic composite demonstrates a synergistic effect in the photocatalytic degradation of rhodamine B (RhB) by exceeding the removal efficiency of single components. The fabrication of the biologic-inorganic interface was confirmed by various analytical techniques including scanning electron microscopy (SEM), scanning transmission electron microscopy with energy dispersive X-ray spectroscopy (STEM EDX) mapping, X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The presented approach for controlled formation of the bioinorganic interface between natural material (cellulose) and nanoscopic inorganic materials of tailored morphology (Bi–O–Br system) enables the significant enhancement of materials functionality.

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Facile preparation of BiOBr/cellulose composites by in situ synthesis and its enhanced photocatalytic activity under visible-light

Cited by 70 publications

References 30 publications

Highly Efficient Industrial Dye Degradation, Bactericidal Properties, and In Silico Molecular Docking Analysis of Ag/Cellulose-Doped CuO Nanostructures

Highly Efficient Industrial Dye Degradation, Bactericidal Properties, and In Silico Molecular Docking Analysis of Ag/Cellulose-Doped CuO Nanostructures

Construction of the Cellulose Nanofibers (CNFs) Aerogel Loading TiO2 NPs and Its Application in Disposal of Organic Pollutants

CelluPhot: Hybrid Cellulose−Bismuth Oxybromide Membrane for Pollutant Removal

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