Enhancement of Zn-N-C charge-directed rearrangement for high-performance selectivity of heavy metal ions in capacitive deionization

Huang, Xinhua; Wang, Zhirou; Li, Xiaonan; Jin, Meiyue; Tong, Yuzudi; Li, Ru

doi:10.1016/j.desal.2023.116597

Cited by 22 publications

(3 citation statements)

References 48 publications

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“…10,11 Currently, hydrogel materials are the primary focus of flexible device research owing to their inherent elasticity, biocompatibility, penetrability, and flexibility compared to other rigid materials ( e.g. , metals, 12–15 inorganic semiconductors 16–18 and carbon materials, 19–21 etc. ).…”

Section: Introductionmentioning

confidence: 99%

A “Mesh Scaffold” that regulates the mechanical properties and restricts the phase transition-induced volume change of the PNIPAM-based hydrogel for wearable sensors

Zhang,

Ding,

et al. 2024

Mater. Horiz.

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Section: Introductionmentioning

confidence: 99%

A “Mesh Scaffold” that regulates the mechanical properties and restricts the phase transition-induced volume change of the PNIPAM-based hydrogel for wearable sensors

Zhang,

Ding,

et al. 2024

Mater. Horiz.

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“…However, the capacity of carbon electrodes to remove salt remains unsatisfactory, typically falling below 20 mg/g. This limitation arises from the prevalence of micropores, the intricate pore structure, and the overlapping effects of the EDL. , Consequently, the introduction of heteroatoms and defects into carbon materials becomes imperative to furnish active sites for efficient ion adsorption. − These modifications also serve to effectively fine-tune their electronic and chemical characteristics …”

Section: Introductionmentioning

confidence: 99%

Salted Dried Bamboo Shoots-Derived Mesoporous Carbon Inherently Doped with SiC and Nitrogen for Capacitive Deionization

Zhang,

Qin,

Liu

et al. 2024

Langmuir

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Dried bamboo shoots (DBS) are a natural resource with inherent silica content, which can serve as sacrificial templates for the formation of mesoporous carbon but also promote the generation of silicon carbide (SiC). Building on this, we introduced mesoporous and graphitic carbon/SiC (SiC/BSC) as the CDI electrode for copper ion (Cu 2+ ) removal. Mesoporous carbon electrodes facilitate faster ion transport, diffusion, and electron-transfer pathways. Furthermore, SiC accelerates electron transfer and promotes faradic redox reactions during the charge and discharge processes. Consequently, the synergistic effect of SiC/ BSC mesoporous carbon material leads to a promising electrode for Cu 2+ capacitive deionization. Leveraging these unique properties, the SiC/BSC electrode material exhibits an outstanding CDI performance of 381.5 mg/g at 1.8 V. This study offers a strategy for the preparation of efficient mesoporous carbon materials as CDI electrodes, specifically tailored for the deionization of Cu 2+ ions.

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“…In the sports field, human motion monitoring enables the evaluation of athletes’ performance and physical fitness, while in the medical field, it plays a crucial role in diagnosing and guiding patients’ physical rehabilitation. , For instance, monitoring heart rate and running stride allows for customized adjustments to athlete running details, while monitoring a patient’s pulse and limb bending ability enables an assessment of their condition. Recently, the application of wearable motion sensors has received extensive attention due to their flexibility, accuracy, and real-time reminders. − However, most of these electronic devices are comprised of rigid materials (e.g., metals, − inorganic semiconductors, − and carbon materials, − etc.). This strategy provided excellent reliability and conductivity but caused a mechanical strength mismatch at the device/skin interface and wearing discomfort.…”

Section: Introductionmentioning

confidence: 99%

Flexible Strain-Sensitive Sensors Assembled from Mussel-inspired Hydrogel with Tunable Mechanical Properties and Wide Temperature Tolerance in Multiple Application Scenarios

Zhang,

Liang,

et al. 2023

ACS Appl. Mater. Interfaces

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Conductive hydrogels, exhibiting wide applications in electronic skins and soft wearable sensors, often require maturely regulating of the hydrogel mechanical properties to meet specific demands and work for a long-term or under extreme environment. However, in situ regulation of the mechanical properties of hydrogels is still a challenge, and regular conductive hydrogels will inevitably freeze at subzero temperature and easily dehydrate, which leads to a short service life. Herein, a novel adhesive hydrogel (PAA-Dopa-Zr4+) capable of strain sensing is proposed with antifreezing, nondrying, strong surface adhesion, and tunable mechanical properties. 3,4-Dihydroxyphenyl-l-alanine (l-Dopa)-grafted poly(acrylic acid) (PAA) and Zr4+ ion are introduced into the hydrogel, which broadly alters the mechanical properties via tuning the in situ aggregation state of polymer chains by ions based on the complexation effect. The catechol groups of l-Dopa and viscous glucose endow the hydrogel with high adhesiveness for skin and device interface (including humid and dry environments) and exhibit an outstanding temperature tolerance under extreme wide temperature spectrum (−35 to 65 °C) or long-lasting moisture retention (60 days). Furthermore, this PAA-Dopa-Zr4+ can be assembled as a flexible strain-sensitive sensor to detect human motions based on specific mechanical properties requirements. This work, enabling superior adhesive and temperature tolerance performance and broad mechanical tenability, presents a new paradigm for numerous applications to wearable sensing and personalized healthcare monitoring.

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Enhancement of Zn-N-C charge-directed rearrangement for high-performance selectivity of heavy metal ions in capacitive deionization

Cited by 22 publications

References 48 publications

A “Mesh Scaffold” that regulates the mechanical properties and restricts the phase transition-induced volume change of the PNIPAM-based hydrogel for wearable sensors

A “Mesh Scaffold” that regulates the mechanical properties and restricts the phase transition-induced volume change of the PNIPAM-based hydrogel for wearable sensors

Salted Dried Bamboo Shoots-Derived Mesoporous Carbon Inherently Doped with SiC and Nitrogen for Capacitive Deionization

Flexible Strain-Sensitive Sensors Assembled from Mussel-inspired Hydrogel with Tunable Mechanical Properties and Wide Temperature Tolerance in Multiple Application Scenarios

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