Luminescent MOF polymer mixed matrix membranes for humidity sensing in real status analysis

Stangl, Johannes; Dietrich, Dennis; Sedykh, Alexander E.; Janiak, Christoph; Müller‐Buschbaum, Klaus

doi:10.1039/c8tc01454j

Cited by 28 publications

(15 citation statements)

References 51 publications

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“…Such technology not only preserves the individual advantages of MOFs but also overcomes their drawbacks, which greatly expands their practical applications. 10 , 16 , 18 , 65 − 72 …”

Section: Introductionmentioning

confidence: 99%

Energy Transfer in Metal–Organic Frameworks for Fluorescence Sensing

Wang

Yin

Shekhah

et al. 2022

ACS Appl. Mater. Interfaces

139

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The development of materials with outstanding performance for sensitive and selective detection of multiple analytes is essential for the development of human health and society. Luminescent metal–organic frameworks (LMOFs) have controllable surface and pore sizes and excellent optical properties. Therefore, a variety of LMOF-based sensors with diverse detection functions can be easily designed and applied. Furthermore, the introduction of energy transfer (ET) into LMOFs (ET-LMOFs) could provide a richer design concept and a much more sensitive and accurate sensing performance. In this review, we focus on the recent five years of advances in ET-LMOF-based sensing materials, with an emphasis on photochemical and photophysical mechanisms. We discuss in detail possible energy transfer processes within a MOF structure or between MOFs and guest materials. Finally, the possible sensing applications of the ET-LMOF-based sensors are highlighted.

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“…Such technology not only preserves the individual advantages of MOFs but also overcomes their drawbacks, which greatly expands their practical applications. 10 , 16 , 18 , 65 − 72 …”

Section: Introductionmentioning

confidence: 99%

Energy Transfer in Metal–Organic Frameworks for Fluorescence Sensing

Wang

Yin

Shekhah

et al. 2022

ACS Appl. Mater. Interfaces

139

View full text Add to dashboard Cite

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“…As it is known from the reported results, the initial material granules, under certain conditions, are able to maintain the original shape and size in the thermal decomposition process [28][29][30]. At the same time, the compounds with the stoichiometric lanthanide ion content attract attention in order to find efficient luminescent materials with low concentration quenching and to investigate specific mechanisms of luminescence quenching in them [31][32][33][34][35][36][37][38][39][40]. At the same time, the consideration of lanthanide-containing materials cannot be restricted only by their luminescent properties.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Samarium OxysulfateSm2O2SO4 in the High-Temperature Oxidation Reaction and Its Structural, Thermal and Luminescent Properties

et al. 2020

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The oxidation process of samariumoxysulfide was studied in the temperature range of 500–1000 °C. Our DTA investigation allowed for establishing the main thermodynamic (∆Hºexp = −654.6 kJ/mol) and kinetic characteristics of the process (Ea = 244 kJ/mol, A = 2 × 1010). The enthalpy value of samarium oxysulfate (ΔHºf (Sm2O2SO4(monocl)) = −2294.0 kJ/mol) formation was calculated. The calculated process enthalpy value coincides with the value determined in the experiment. It was established that samarium oxysulfate crystallizes in the monoclinic symmetry class and its crystal structure belongs to space group C2/c with unit cell parameters a = 13.7442 (2), b = 4.20178 (4) and c = 8.16711 (8)Å, β = 107.224 (1)°, V = 450.498 (9)Å3, Z = 4. The main elements of the crystalline structure are obtained and the cation coordination environment is analyzed in detail. Vibrational spectroscopy methods confirmed the structural model adequacy. The Sm2O2SO4luminescence spectra exhibit three main bands easily assignable to the transitions from 4G5/2 state to 6H5/2, 6H7/2, and 6H9/2 multiplets.

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“…Based on this phenomenon, it is possible to design and synthesize optical sensors for small molecule species (e.g., water). Currently, those reported on lanthanide-doped MOFs as humidity sensing materials are usually a downshifting luminescence process using high-energy light excitation to emit low-energy light [24,25]. In contrast, the upconversion luminescence of lanthanide-doped MOFs is rarely reported, especially for humidity sensor application.…”

Section: Introductionmentioning

confidence: 99%

Upconversion Luminescent Humidity Sensors Based on Lanthanide-Doped MOFs

et al. 2022

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Lanthanide-doped metal-organic frameworks (Y/Yb/Er-MOF) were synthesized by a low-cost solvothermal method. The obtained Y/Yb/Er-MOF shows the cooperative upconversion luminescence of Yb3+ and upconversion luminescence of Er3+ (Yb3+-sensitized) irradiated by a continuous wave 980 nm laser. In order to explore the potential application of Y/Yb/Er-MOF in relative humidity (RH) sensors, the RH responsiveness of Y/Yb/Er-MOF was investigated by measuring the intensity changes of upconversion luminescence. The Y/Yb/Er-MOF possesses two luminescence centers, in which Yb3+ forms emission at 500 nm through the cooperative luminescence effect, and Er3+ achieves 660 nm emission through excited state absorption and successive energy transfer from Yb3+. Hence, the ratio meter luminescence sensor for RH is constructed based on Y/Yb/Er-MOF. The results show that the response of Y/Yb/Er-MOF to RH presents a linear relationship in the range of 11–95%. The cycle stability of Y/Yb/Er-MOF responses to RH was investigated with the intensity changes of upconversion luminescence, and the recovery ratio was more than 93% each time. Therefore, the Y/Yb/Er-MOF is a humidity-sensitive material with great potential for applications such as humidity sensors.

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Luminescent MOF polymer mixed matrix membranes for humidity sensing in real status analysis

Abstract: Long-term monitoring for storage/transport and improved handling of luminescent MOF sensors is achieved using MMM fabrication for humidity sensing.

Cited by 28 publications

References 51 publications

Energy Transfer in Metal–Organic Frameworks for Fluorescence Sensing

Energy Transfer in Metal–Organic Frameworks for Fluorescence Sensing

Synthesis of Samarium OxysulfateSm2O2SO4 in the High-Temperature Oxidation Reaction and Its Structural, Thermal and Luminescent Properties

Upconversion Luminescent Humidity Sensors Based on Lanthanide-Doped MOFs

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