A Tb-MOF anion, porous coordination framework constructed with oxalate ligand: Crystal structure, adsorption properties, and luminescence sensing

Cui, Ruifang; Li, Rui; Li, Zheng; Wei, Mingming; Wang, Xiong; Li, Xia

doi:10.1016/j.dyepig.2021.109669

Cited by 23 publications

(18 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…When the LUMO level of the detected substance is lower, electrons are easily transferred to the detected substance, which results in the interference of energy transfer between the ligand and metal ions, leading to fluorescence quenching. 34,35 As shown in Fig. 10b, according to the DFT calculation, the LUMO levels of H 2 ox (−1.97 eV) and H 2 bct (−1.05 eV) was higher than that of chlorogenic acid (−2.13 eV).…”

Section: Resultsmentioning

confidence: 89%

Lanthanide ternary mixed-ligand coordination polymers as fluorescent sensors for the sensitive and selective detection of chlorogenic acid

Wang

Wei

et al. 2022

CrystEngComm

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Resultsmentioning

confidence: 89%

Lanthanide ternary mixed-ligand coordination polymers as fluorescent sensors for the sensitive and selective detection of chlorogenic acid

Wang

Wei

et al. 2022

CrystEngComm

Self Cite

View full text Add to dashboard Cite

show abstract

“…Then, according to the equation LOD = 3σ/ K SV , the limits of detection (LOD) were calculated, where σ refers to the standard error of fluorescence intensity . As shown in Table , the K SV value of JY1 for IDP reaches 50,063 M –1 , being 23–51 times higher than those of the previously reported porous organic polymers PAN-Cs (980–2173 M –1 ), and exceeds that of Tb-MOFs (36,000 M –1 ) . Moreover, the LOD of JY1 for IDP is as low as 30 ppb (1.2 × 10 –7 M), which is far below the maximum residue limits of IDP allowed in citrus fruits by the European Union (0.9 ppm)…”

Section: Resultsmentioning

confidence: 92%

“…3 As shown in Table 2, the K SV value of JY1 for IDP reaches 50,063 M −1 , being 23−51 times higher than those of the previously reported porous organic polymers PAN-Cs (980−2173 M −1 ), 37 and exceeds that of Tb-MOFs (36,000 M −1 ). 52 Moreover, the LOD of JY1 for IDP is as low as 30 ppb (1.2 × 10 −7 M), which is far below the maximum residue limits of IDP allowed in citrus fruits by the European Union (0.9 ppm). 53 The structure−property relationship of the four pesticides in the two polymers is illustrated in Figure 5.…”

Section: Table 1 Porosity Parameters Of the Two Micro-/ Mesoporous Po...mentioning

confidence: 89%

Micro-/Mesoporous Fluorescent Polymers and Devices for Visual Pesticide Detection with Portability, High Sensitivity, and Ultrafast Response

Tang

Wang

2022

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

The residue of pesticides in crops, soil, and water continues to be a widespread concern due to the threat to human health and food safety. With the aim to develop highly sensitive sensing materials and portable detection devices, two dicarbazole-based fluorescent micro-/mesoporous polymers (JYs) with a larger specific surface area and pore sizes ranging from 1.1 to 34.2 nm are synthesized. The Stern–Volmer constants of JY fluorescence quenching for imidacloprid (50,063 M–1) exceed 23–51 times those of the reported porous organic polymers (980–2173 M–1). Of particular interest is the observation that JYs show rapid fluorescence response (2 s) and ultralow detection limit (30 ppb) for imidacloprid in water medium. The pronounced chemsensing property is attributed to the synergistic role of the hierarchical pore structure, large π-conjugation of chromophore groups, and strong inner filter effect between the polymer and imidacloprid molecule. Moreover, the pesticide detection of JYs exhibits good interference resistance in complicated service environments such as the extract liquids of the apple peel and field soil as well as aqueous solutions of various cations and anions. Because of the portability, excellent reusability, and sensitive fluorescence response, the prepared JYs and detection devices have promising applications in the on-site monitoring and early warning of the pesticide residues.

show abstract

“…In addition to Stern–Volmer coefficients, the limit of detection (LOD) values for both polymers and the five pesticides were calculated from the equation LOD = 3σ/ K SV , in which σ refers to the standard intensity deviation . As shown in Table , the LOD of PAN-TPE-1 for IDP reaches 28 ppb, which is much lower than the previously reported porous materials such as carbazole-based POPs (0.71 ppm) and Tb-MOF (3.32 ppm) . Moreover, the LOD value of 28 ppb is far below the allowed residue limits by the World Health Organization for IDP in common fruits and vegetables like tomatoes (0.5 ppm), blueberries (5 ppm), citrus fruits (1 ppm), beans (2 ppm), and land cress (6 ppm)…”

Section: Resultsmentioning

confidence: 93%

“…4 As shown in Table 1, the LOD of PAN-TPE-1 for IDP reaches 28 ppb, which is much lower than the previously reported porous materials such as carbazole-based POPs (0.71 ppm) 2 and Tb-MOF (3.32 ppm). 44 Moreover, the LOD value of 28 ppb is far below the allowed residue limits by the World Health Organization for IDP in common fruits and vegetables like tomatoes (0.5 ppm), blueberries (5 ppm), citrus fruits (1 ppm), beans (2 ppm), and land cress (6 ppm). 45 Structure−Property Relationships.…”

Section: ■ Introductionmentioning

confidence: 93%

AIE-Active Fluorescent Porous Polymers for Recognizable Detection of Imidacloprid and Structure–Property Relationship

2022

View full text Add to dashboard Cite

Aggregation-induced emission (AIE)-active aromatic tetraaldehydes are utilized as starting monomers to create two fluorescent polymers (PAN-TPEs) with hierarchical pores ranging from micropores (1.4−1.9 nm) to mesopores (3.8−26.2 nm). Their chemsensing properties for five pesticides, including imidacloprid, acetamiprid, triflumizole, lambda-cyhalothrin, and indoxacarb, are studied. It is found that the Stern−Volmer quenching coefficient and the limit of detection for imidacloprid in the water medium reach 53 745 M −1 and 28 ppb, respectively, which are much superior to those of the reported porous materials in the literature and exceed 3−10 times of the other four pesticides. Moreover, the polymers exhibit fast fluorescence response for imidacloprid (less than 4 s), and the detection sensitivity is nearly not affected by the common cations and anions. Additionally, the studies reveal that, for the polymer sample with narrower pore channels, the recognition ability for imidacloprid strongly depends on the molecular volumes of pesticides, whereas in the case of the polymer with larger pore sizes, the inner filter effect and the photoinduced electron transfer between the pesticides and the chromophore groups in the polymer skeleton become the major factors. The results are of significance for understanding the effects of porosity parameters and AIE groups in fluorescent porous polymers on the recognizable detection of imidacloprid from other pesticides.

show abstract

A Tb-MOF anion, porous coordination framework constructed with oxalate ligand: Crystal structure, adsorption properties, and luminescence sensing

Cited by 23 publications

References 47 publications

Lanthanide ternary mixed-ligand coordination polymers as fluorescent sensors for the sensitive and selective detection of chlorogenic acid

Lanthanide ternary mixed-ligand coordination polymers as fluorescent sensors for the sensitive and selective detection of chlorogenic acid

Micro-/Mesoporous Fluorescent Polymers and Devices for Visual Pesticide Detection with Portability, High Sensitivity, and Ultrafast Response

AIE-Active Fluorescent Porous Polymers for Recognizable Detection of Imidacloprid and Structure–Property Relationship

Contact Info

Product

Resources

About