Polydopamine/UiO-66-NH2 induced photothermal antibacterial electrospun membrane for efficient point-of-use drinking water treatment

Wang, Jiarong; Chen, Shixiong; Zeng, Qinghao; Jiang, Hong; Chang, Haiqing; Zhang, Tian C.; Tian, Xiaobao; Li, Yingqi; Liang, Ying; Wang, Kai

doi:10.1016/j.colsurfa.2022.130640

Cited by 7 publications

(2 citation statements)

References 51 publications

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“…It is well recognized that the iron oxide core allows quick and easy separation of the catalyst from the reaction medium by applying an external magnetic field after the reaction is completed, and PD provides not only binding sites for UiO-66 but also exerts a photothermal effect. PD has been widely employed in the conversion of absorbed light into heat under infrared (IR) irradiation and exhibits constant photothermal efficiency. , This photothermal property of PD could increase the reaction temperature, promoting collisions between the reactants without an external heat source, thereby increasing the decomposition rate of CWA. , This allows the catalyst system to be exposed to the reaction medium for a very short period of time, which can prevent structural collapse of the catalyst in the aqueous basic reaction medium.…”

Section: Introductionmentioning

confidence: 99%

“…PD has been widely employed in the conversion of absorbed light into heat under infrared (IR) irradiation and exhibits constant photothermal efficiency. 26,27 This photothermal property of PD could increase the reaction temperature, promoting collisions between the reactants without an external heat source, thereby increasing the decomposition rate of CWA. 28,29 This allows the catalyst system to be exposed to the reaction medium for a very short period of time, which can prevent structural collapse of the catalyst in the aqueous basic reaction medium.…”

Section: Introductionmentioning

confidence: 99%

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Photothermally Active Core–Shell Catalyst Based on UiO-66 and Polydopamine for Highly Effective Detoxification of Nerve Agents

Jang

Lee

Kim

et al. 2023

ACS Appl. Mater. Interfaces

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A new, photothermally active, catalytic composite (Fe 3 O 4 @PD@UiO-66) based on UiO-66 and polydopamine (PD) was prepared for the decomposition of chemical warfare agents (CWAs). An iron oxide nanoparticle was introduced to enable rapid recovery after the reaction. The PD layer enabled conversion of the absorbed light into heat under infrared (IR) irradiation and increased the reaction temperature, thereby increasing the reaction rate. Dendrimer-functionalized silica particles (NH 2 -DS) were used as heterogeneous catalyst regenerators instead of N-ethylmorpholine. Under IR irradiation, a mixture of Fe 3 O 4 @PD@UiO-66 and NH 2 -DS was effective as a heterogeneous catalyst for degrading DMNP, with a 5 min half-life in water. Without IR irradiation, the half-life of DMNP was 45 min using the same catalyst mixture. Various bases including arginine, histidine, and D4 were directly modified on the surface of Fe 3 O 4 @PD@UiO-66 and used without NH 2 -DS or N-ethylmorpholine in order to compare their reactivities. Furthermore, a mixture of Fe 3 O 4 @PD@UiO-66 and NH 2 -DS was used for the decomposition of nerve agents, including sarin (GB), soman (GD), and VX, under IR-LED irradiation. Remarkably, GB was effectively decomposed with a half-life of 4.2 min, and GD demonstrated a half-life of 8.7 min. VX was hydrolyzed with a half-life of 14.0 min.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Photothermally Active Core–Shell Catalyst Based on UiO-66 and Polydopamine for Highly Effective Detoxification of Nerve Agents

Jang

Lee

Kim

et al. 2023

ACS Appl. Mater. Interfaces

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Impact of titanium dioxide/graphene in polyvinylidene fluoride nanocomposite membrane to intensify methylene blue dye removal, antifouling performance, and reusability

Sueraya,

Rahman,

Said

et al. 2024

J of Applied Polymer Sci

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The development of efficient water purification technologies is a critical research focus driven by the crucial role of clean water sources for ecological sustainability. This study explores the strategic incorporation of nanoparticles within polyvinylidene fluoride (PVDF) membranes as a promising approach to enhance membrane performance for wastewater remediation. PVDF membranes containing varying ratios of graphene (GR) and titanium dioxide (TiO2) nanocomposites were fabricated via phase inversion method. Characterization techniques including XRD, FTIR, and FESEM‐EDX revealed that the 80% GR nanocomposite membrane exhibited desirable structural and functional properties with pronounced sponge‐like morphology and homogenous nanoparticle distribution. Fourier‐transform infrared spectroscopy and x‐ray diffraction analysis confirmed the 80% GR membrane retained PVDF crystallinity while uniquely eliminating TiO2 crystallinity. Subsequently, performance testing demonstrated the 80% GR nanocomposite membrane had the highest water flux and methylene blue dye rejection rates compared to other ratios and the pristine PVDF membrane. Both fabricated membranes exhibited sufficient reusability and antifouling properties. However, 80% GR ratio exhibited superior antifouling properties, indicating its potential as an optimal material for improving membrane hydrophilicity and overall water purification technologies. These findings underscore the strategic utility of GR‐TiO2 nanocomposites for enhancing PVDF membrane performance in sustainable wastewater treatment applications.

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Towards Sustainable Homes: Exploring Point-of-Use Treatment for Laundry Water Recycling

Umapathy,

Rajamanivannan,

Solaiappan

et al. 2024

Water Air Soil Pollut

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Polydopamine/UiO-66-NH2 induced photothermal antibacterial electrospun membrane for efficient point-of-use drinking water treatment

Cited by 7 publications

References 51 publications

Photothermally Active Core–Shell Catalyst Based on UiO-66 and Polydopamine for Highly Effective Detoxification of Nerve Agents

Photothermally Active Core–Shell Catalyst Based on UiO-66 and Polydopamine for Highly Effective Detoxification of Nerve Agents

Impact of titanium dioxide/graphene in polyvinylidene fluoride nanocomposite membrane to intensify methylene blue dye removal, antifouling performance, and reusability

Towards Sustainable Homes: Exploring Point-of-Use Treatment for Laundry Water Recycling

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