The effect of organic ligands on the separation performance of Zr based metal–organic framework (Zr‐MOF) membranes was investigated. A series of Zr‐MOF membranes with different ligand chemistry and functionality were synthesized by an in situ solvothermal method and a coordination modulation technique. The thin supported MOF layers (ca. 1 μm) showed the crystallographic orientation and pore structure of original MOF structures. The MOF membranes show excellent selectivity towards hydrogen owing to the molecular sieving effect when the bulkier linkers were used. The molecular simulation confirmed that the constricted pore apertures of the Zr‐MOFs which were formed by the additional benzene rings lead to the decrease in the diffusivity of larger penetrants while hydrogen was not remarkably affected. The gas mixture separation factors of the MOF membranes reached to H2/CO2=26, H2/N2=13, H2/CH4=11.

Emotional eating is one factor that increases the consumption of unhealthy food. This study aimed to investigate the association between emotional eating and frequencies of consuming fast food, high-fat snacks, processed meat products, dessert foods, and sugar-sweetened beverages (SSBs) in adolescents. The baseline survey data (2015) from the Taiwan Adolescent to Adult Longitudinal Study (TAALS) were fitted into multivariate logistic regression models adjusted for sex, school type, Body Mass Index (BMI), eating while doing something, nutrition label reading, skipping breakfast, smoking, binge drinking, sedentary lifestyle, physical activity, peer and school support, and parental education level. Among the 18,461 participants (48.5% male and 51.5% female), those exhibiting emotional eating were more likely to consume fast food (Odds ratio (OR) = 2.40, 95% Confidence interval (CI): 2.18–2.64), high-fat snacks (OR = 2.30, 95% CI: 2.12–2.49), processed meat products (OR = 1.92, 95% CI: 1.78–2.08), dessert foods (OR = 2.49, 95% CI: 2.31–2.69), and sugar-sweetened beverages (OR = 1.83, 95% CI: 1.70–1.98). Factors that were positively associated with unhealthy food consumption included eating while doing other activities, binge drinking, smoking, and sedentary lifestyle. Among all the covariates, nutrition label reading was the only factor that was inversely associated with frequent unhealthy food consumption. Sex and school type may moderate the effect of emotional eating on the frequent consumption of specific unhealthy food groups. In conclusion, adolescents with high emotional eating were more likely to report frequent consumption of unhealthy foods in Taiwan. Our findings showed that male participants appeared to consume fast foods, high-fat snacks, processed meat, and SSBs more often and dessert foods less often than females. Future longitudinal studies are recommended for understanding the causal relationship between emotional eating and unhealthy food consumption.

The field of mixed matrix membranes (MMMs) for separation technology has advanced by using metal–organic frameworks (MOFs) with significant gas adsorption. Herein, the nanosized zeolitic imidazolate frameworks (ZIFs) core–shell crystals, i.e., ZIF‐67@ZIF‐8 (ZIF‐67 acting as core and ZIF‐8 as shell) are synthesized using the seed‐mediated growth method. ZIF‐67@ZIF‐8 nanocrystals present higher surface area, gas uptake, and thermal stability in comparison with the ZIF‐8 and ZIF‐67 nanoparticles. Nanosized ZIF‐67@ZIF‐8 fillers are loaded into the synthesized polyimide and Pebax 1657 matrices and the gas separation properties are compared with the pure ZIF‐67 and ZIF‐8 MMMs. The highest H2 permeability of 1150 barrer and H2/CH4 selectivity of 21.5 is observed for 20 wt% of ZIF‐67@ZIF‐8 MMM, which demonstrates 100% improvement compared to the permeability of the pristine polyimide membrane. H2 permeability of ZIF‐67@ZIF‐8 MMMs increases by up to 86% and 50% in comparison to the ZIF‐67 and ZIF‐8 MMMs, respectively. This indicates that the interaction and dispersibility of the particles with the polymer matrices can be tuned through the careful engineering of the double‐layered fillers. At the same time, the internal core would impart higher gas uptake and permeability to the overall system.

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