Cyano-determined mercury (II) ion selective fluorescence assay over polymeric carbon nitride DOI
Jing Zhang, Tao Sun, Jiang Wang

et al.

Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, Journal Year: 2024, Volume and Issue: unknown, P. 125129 - 125129

Published: Sept. 1, 2024

Language: Английский

Fluorescent chemosensors facilitate the visualization of plant health and their living environment in sustainable agriculture DOI Creative Commons

Yang-Yang Gao,

Jie He,

Xiao-Hong Li

et al.

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(13), P. 6992 - 7090

Published: Jan. 1, 2024

Globally, 91% of plant production encounters diverse environmental stresses. Fluorescent chemosensors are effective for monitoring health and environment that promotes the development sustainable agriculture.

Language: Английский

Citations

17
Bipyridine covalent organic framework aerogel for highly selective recovery of palladium in wastewater DOI Creative Commons
Yang Liu,

Weikang Guo,

Jiale Liu

et al.

Chemical Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Palladium (Pd), a rare and precious metal, is highly valued due to its non-renewable nature significant cost. Therefore, recovering palladium from industrial wastewater of great importance but remains challenge. Herein, composite aerogel adsorbent has been developed by linking bipyridine covalent organic framework, termed TpBpy, with chitosan (CS) through robust bonds. The resulting TpBpy/CS employed for the selective separation recovery at low concentrations in real wastewater. Experimental results reveal that maximum adsorption capacity Pd(ii) 274.4 mg g-1 pH 1. Additionally, even presence other coexisting ions 100 times higher than Pd(ii), efficiency above 99%. Mechanistic investigations indicate aerogels primarily occurs coordination between pyridine N as well electrostatic interaction protonated amino groups Pd(ii). Moreover, demonstrates exceptional reusability, maintaining an 99% after nine adsorption-desorption cycles. Overall, promising monolithic efficient acidic selectivity, demonstrating substantial potential practical applications.

Language: Английский

Citations

3
Antimony-complexed heavy metal wastewater in antimony mining areas: Source, risk and treatment DOI Creative Commons

Songyun Deng,

Bozhi Ren,

Baolin Hou

et al.

Environmental Technology & Innovation, Journal Year: 2023, Volume and Issue: 32, P. 103355 - 103355

Published: Sept. 6, 2023

Antimony mining areas generate a large amount of wastewater containing complex heavy metals, which poses threat to the health residents and surrounding flora fauna, disrupts ecological balance. Therefore, it is necessary find more effective means treatment. By reviewing formation, risks, treatment methods in antimony areas, main sources pathways metal ions were analyzed. A detailed discussion advantages disadvantages several technologies was conducted, suitability different evaluated, along with future prospects. It found that mainly originates from mining, smelting, industrial activities area. Animals are migration metals pose greater risks compared plants. Among various methods, adsorption neutralization-precipitation economically viable for application areas. However, they still fail meet requirements efficient anaerobic environments. applying principle complementary optimizing commonly used reactors, novel composite adsorbent based on central perforated layering concept proposed. This enables sequential removal pollutants in-depth investigations into mechanisms conducted. Furthermore, prospects given development adsorbents. predicted layered technology will be major direction research.

Language: Английский

Citations

24
Recent advances in analytical sensing detection of heavy metal ions based on covalent organic frameworks nanocomposites DOI
Libo Li,

Xiaoya Bi,

Meiyang Zhen

et al.

TrAC Trends in Analytical Chemistry, Journal Year: 2023, Volume and Issue: 171, P. 117488 - 117488

Published: Dec. 16, 2023

Language: Английский

Citations

23
A review of fluorescent covalent organic frameworks for heavy metal ion sensors DOI
Yingying Wang,

Lan He,

Weijie Wei

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159249 - 159249

Published: Jan. 1, 2025

Language: Английский

Citations

1
Covalent organic framework@cellulose nanofibrils@carboxymethyl cellulose composite hydrogel beads for the removal of nickel ions from aqueous solutions DOI
Bing Zhao, Xu Fu,

Yaoyue Di

et al.

Journal of Molecular Structure, Journal Year: 2024, Volume and Issue: 1312, P. 138619 - 138619

Published: May 13, 2024

Language: Английский

Citations

8
Post-synthetic modification of a covalent organic framework via a thiol–ene reaction for improving fluorescence detection and removal of cationic crystal violet carcinogenic dye DOI
Ke Li, Bing Yan

Inorganic Chemistry Frontiers, Journal Year: 2024, Volume and Issue: 11(10), P. 2902 - 2913

Published: Jan. 1, 2024

Based on a thiol–ene reaction, covalent organic framework containing olefins (COF-A) is modified with 2-mercaptoacetic acid to prepare COF-S-COOH for the first time, which greatly improves sensing and adsorption capacity crystal violet.

Language: Английский

Citations

7
Sensitive detection of Escherichia coli in diverse foodstuffs by electrochemical aptasensor based on 2D porphyrin-based COF DOI
Jing Cui, Yu Zhang,

Kan Lun

et al.

Microchimica Acta, Journal Year: 2023, Volume and Issue: 190(10)

Published: Sept. 29, 2023

Language: Английский

Citations

16
Synthesis and characterization of guar gum xanthate derivative super adsorbent hydrogel for the capturing of heavy metal ions from wastewater DOI
Mansi Srivastava, Poorn Prakash Pande,

Arbind Chaurasiya

et al.

Journal of Dispersion Science and Technology, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 16

Published: Oct. 20, 2024

The Guar Gum Xanthate based hydrogel GGmX-g-poly(AA-co-HEMA) has been successfully synthesized by using the graft copolymerization of two monomers, acrylic acid (AA) and 2-hydroxyethyl methacrylate (HEMA) hydrogel. synthesis follows free-radical polymerization method. UV-visible spectroscopy (UV), Thermogravimetric analysis (TGA), Fourier transform infrared (FTIR), Point zero charge (PZC), field emission scanning electron microscopy (FESEM) were employed for characterization This shown a high swelling ratio 430.2 g/g retention 75.82% in distilled water which is notable result. By hydrogel, maximum percentage heavy metal ions removal from wastewater was found to be 98.5(±1.5)% 97.1(±1.5) at optimum pH 6 6.5 Cu2+ Ni2+ solutions respectively. Langmuir adsorption isotherm fits best data indicating monolayer with capacity 423.72 (±26.1) mg/g 404.85 (±31.4) pseudo-second-order kinetic model provides most accurate depiction kinetics rate constant 9.1 × 10−4 (±1.37×10−4)g/(mg.min) 8.3 (±1.24×10−4)g/(mg.min) ions, negative ΔG value (-4.75 kJ/mol −3.26 ions) positive ΔH (57.55 (±5.41) 40.60(±5.37) suggested process spontaneous, endothermic, feasible. It that excellent regenerative % 84.8% 82.4% fifth cycle.

Language: Английский

Citations

5
Efficient adsorption and advanced purification of metal ions induced by synergistic effect of amine and thione on covalent organic frameworks DOI
Heping Jiao,

Ruixiang Bi,

Aihua Xu

et al.

Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2024, Volume and Issue: 691, P. 133924 - 133924

Published: April 7, 2024

Language: Английский

Citations

4