Screen-printed p–n BiOCl/BiFeO<sub>3</sub> heterojunctions for efficient photocatalytic degradation of Rhodamine B

Fourmont, Paul; Cloutier, Sylvain G.

doi:10.1039/d2ra03308a

Cited by 7 publications

(2 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, most studies have focused on enhancing the light absorption range and the recombination rate of electron–hole pairs in BiOCl through doping noble metals [ 42 ], ions [ 63 ] and hybrid heterojunctions [ 64 ]. These modifications aim to improve the photocatalytic degradation of water pollution [ 65 , 66 , 67 ]. The mechanisms underlying bacterial inactivation by BiOCl have received limited attention.…”

Section: Resultsmentioning

confidence: 99%

Research on the Antibacterial Properties of MXene-Based 2D–2D Composite Materials Membrane

Cheng

Qin

et al. 2023

Nanomaterials

View full text Add to dashboard Cite

Novel MXene-based two-dimensional (2D) membranes are widely used for water purification due to their highly controllable structure and antibacterial properties. However, in the process of membrane separation, the problems of membrane fouling, especially biological fouling, limits the further application of MXene-based membranes. In this study, in order to improve the antibacterial and separation properties of membranes, three kinds of MXene-based 2D–2D composite membranes (M2~M4) were prepared using polyethersulfone (PES) as the substrate, which were GO@MXene, O-g-C3N4@MXene and BiOCl@MXene composite membranes respectively. The results showed that the antibacterial activity of M2~M4 against Escherichia coli and Staphylococcus aureus was further improved, especially the antibacterial ratio of M4 against Escherichia coli and Staphylococcus aureus was up to 50% and 82.4%, respectively. By comparing the surface morphology of MXene membrane and modified membrane treated bacteria through scanning electron microscopy (SEM), it was found that the cell density on modified membrane was significantly lower than that of pure MXene membrane.

show abstract

Section: Resultsmentioning

confidence: 99%

Research on the Antibacterial Properties of MXene-Based 2D–2D Composite Materials Membrane

Cheng

Qin

et al. 2023

Nanomaterials

View full text Add to dashboard Cite

show abstract

“…The BiFeO 3 powders are synthesized by a simple solvothermal method. − First, an equimolar ratio of bismuth(III) nitrate pentahydrate [Bi(NO 3 ) 3 ·5H 2 O] and iron(III) nitrate nonahydrate [Fe(NO) 3 ·9H 2 O] is weighted and dissolved in N , N -dimethylformamide. Then, poly(vinylpyrrolidone) is added as a chelating agent.…”

Section: Methodsmentioning

confidence: 99%

Graphene-Enhanced Screen-Printed BiFeO₃-Based Thermistors

Fourmont

Yin

Fortier

et al. 2022

ACS Appl. Electron. Mater.

Self Cite

View full text Add to dashboard Cite

In this study, serigraphic-grade BiFeO3-based ink formulations are produced and then mixed with graphene to enhance the performances of screen-printed thermistor devices. The devices are printed atop a standard thermally boosted glass-reinforced epoxy (FR-4) substrate coated with interdigitated gold electrodes. The broader operating temperature range of these thermistors makes them compatible with standard printed circuit board (PCB) manufacturing and operating conditions. Thus, we achieve highly sensitive devices with a temperature coefficient of resistance (TCR) of −0.96%/°C, which is the highest sensitivity reported yet for any graphene-based thermistor operating from 25 to 170 °C. The best-performing devices are loaded with 3.5 wt % graphene. These low-hysteresis and stable thermistors boast a thermal index (β-coefficient) of 864 K. This optimal graphene loading occurs just above the percolation threshold.

show abstract

Highly‐Sensitive and High Operating Range Fully‐Printed Humidity Sensors Based on BiFeO₃/BiOCl Heterojunctions

Fourmont,

Vaussenat,

Gratuze

et al. 2024

Adv Elect Materials

View full text Add to dashboard Cite

Fully‐printed humidity sensors based on BiFeO3/BiOCl heterojunctions fabricated using a two‐step process with serigraphic printing are reported. Most importantly, this unique sensor architecture provides a broader relative humidity sensing range compared to pristine BFO sensors due to a synergistic effect between dense networks of BiOCl nanosheets synthetized atop BFO powders. With surface‐to‐weight ratios reaching 7.75 m2 g−1, these heterostructures increase the sensitivity and operating range of BFO‐based humidity sensors. While previously reported BFO humidity sensors only detect relative humidities above 30%, The BFO/BiOCl heterojunctions can measure relative humidities as low as 15% due to their increased surface area. Optimal growth and packing of the BiOCl nanosheet/BFO powder heterostructure are achieved by tuning the loading of the BFO powder and simultaneously forming the BiOCl sheets by chemical etching and annealing of the BFO powder. Excellent performance of optimized sensors including tracking and monitoring different types of breathing are demonstrated while mounted on an oxygen mask.

show abstract

Screen-printed p–n BiOCl/BiFeO₃ heterojunctions for efficient photocatalytic degradation of Rhodamine B

Abstract: We report a facile methodology to print colloid-free p–n BiOCl/BiFeO3 heterojunctions for degradation of Rhodamine B. Thanks to dense interconnected networks of BiOCl nanosheets, a 92% degradation of rhodamine B is achieved under visible light.

Cited by 7 publications

References 53 publications

Research on the Antibacterial Properties of MXene-Based 2D–2D Composite Materials Membrane

Research on the Antibacterial Properties of MXene-Based 2D–2D Composite Materials Membrane

Graphene-Enhanced Screen-Printed BiFeO₃-Based Thermistors

Highly‐Sensitive and High Operating Range Fully‐Printed Humidity Sensors Based on BiFeO₃/BiOCl Heterojunctions

Contact Info

Product

Resources

About

Screen-printed p–n BiOCl/BiFeO3 heterojunctions for efficient photocatalytic degradation of Rhodamine B

Abstract: We report a facile methodology to print colloid-free p–n BiOCl/BiFeO3 heterojunctions for degradation of Rhodamine B. Thanks to dense interconnected networks of BiOCl nanosheets, a 92% degradation of rhodamine B is achieved under visible light.

Cited by 7 publications

References 53 publications

Research on the Antibacterial Properties of MXene-Based 2D–2D Composite Materials Membrane

Research on the Antibacterial Properties of MXene-Based 2D–2D Composite Materials Membrane

Graphene-Enhanced Screen-Printed BiFeO3-Based Thermistors

Highly‐Sensitive and High Operating Range Fully‐Printed Humidity Sensors Based on BiFeO3/BiOCl Heterojunctions

Contact Info

Product

Resources

About

Screen-printed p–n BiOCl/BiFeO₃ heterojunctions for efficient photocatalytic degradation of Rhodamine B

Graphene-Enhanced Screen-Printed BiFeO₃-Based Thermistors

Highly‐Sensitive and High Operating Range Fully‐Printed Humidity Sensors Based on BiFeO₃/BiOCl Heterojunctions