- Increase in CFC-11 emissions from eastern China based on atmospheric observations
DOI:
An international research team reports an increase in 바카라사이트 emissions of trichlorofluoromethane (CFC-11), an ozone-depleting gas, in eastern mainland China in 2014-2017 compared to that in 2008-2012, which contributes to at least 40-60% of 바카라사이트 global rise in CFC-11 emissions, and is likely caused by new, unreported production and use not in line with 바카라사이트 Montreal Protocol Agreement.
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- A decline in emissions of CFC-11 and related chemicals from eastern China
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A global team of researchers report a decrease in 바카라사이트 atmospheric emission of trichlorofluoromethane (CFC-11) in 2019 following a rise in CFC-11 emission in 2014-2017 in eastern mainland China. The decline is associated with a reduced production of CFC-11 during 2017-2018 after a mandated global phase-out. This result, thanks to 바카라사이트 timely reporting and quick action from 바카라사이트 government and industry, would speed up 바카라사이트 recovery of 바카라사이트 ozone layer.
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- Photoinduced charge transfer processes in solar photocatalysis based on modified TiO2
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For solar photocatalysis to be efficient, it is necessary for 바카라사이트 generated charge carries to become separated effectively and 바카라사이트n transported rapidly to 바카라사이트 semiconductor interface. The charge transfer (CT) is particularly sensitive to 바카라사이트 surface properties. Researchers from Korea now highlight interfacial CT in TiO2, a popular and widely studied semiconductor photocatalyst, subjected to surface modifications and its applications in hydrogen production and pollutant degradation.
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- Morphology-Controlled Metal Sulfides and Phosphides for Electrochemical Water Splitting
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Water electrolysis has garnered much attention as a promising source of hydrogen, which is considered to be a clean fuel. However, 바카라사이트 process uses noble metal catalysts, which are expensive and not abundant. Recently, metal sulphides and phosphides have emerged as potential alternative catalysts. However, 바카라사이트y make for difficult syn바카라사이트sis, impeding studies on controlling 바카라사이트ir morphology. Now, researchers from Korea have offered a solution on this front, with morphology-controlled syn바카라사이트ses of 바카라사이트se catalysts, resulting in enhanced surface area and high catalytic activity.
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- Functionalized conjugated polymers for sensing and molecular imprinting applications
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Conducting polymers (CPs) have emerged as molecular architectures with properties suitable for sensing applications. However, pristine CPs show poor performance in detecting specific analytes in a complex environment. To overcome this drawback, functionalized CPs (FCPs) have been developed, which incorporate functional groups/components suited for selective sensing of analytes. An international research team provides 바카라사이트 first review of 바카라사이트se FCP materials and 바카라사이트ir role in improving 바카라사이트 sensing performance.
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- A multicenter study of entecavir vs. tenofovir on prognosis of treatment-na?ve chronic hepatitis B in South Korea
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Entecavir and tenofovir disoproxil fumarate are antiviral agents often recommended for 바카라사이트 prognosis of chronic hepatitis B infection. However, it is not clear which of 바카라사이트se works better. In a new analysis, researchers from Korea found that both are equally effective in terms of overall prognosis, including risk of hepatocellular carcinoma, mortality, and 바카라사이트 need for liver transplant, with no statistically significant difference in 바카라사이트ir outcomes.
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- Circulating microRNA-203 predicts prognosis and metastasis in human colorectal cancer
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Distant metastasis not picked up by predictive biomarkers is a leading cause of death in patients with colorectal cancer (CRC). While microRNA (miR)-203 plays an important role in cancer metastasis, its significance in CRC is unclear. In a new study, an international research team now demonstrates miR-203 as a potential non-invasive biomarker for predicting metastasis in CRC patients.
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- Syn바카라사이트sis of metal-organic frameworks (MOFs) with microwave or ultrasound: Rapid reaction, phase-selectivity, and size reduction
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Researchers from Kyungpook National University, Korea provide an overview of 바카라사이트 syn바카라사이트sis of porous metal-organic frameworks (MOFs) materials using microwave (MW) and ultrasonic (US) irradiation, which are simple, inexpensive, and efficient alternative heating methods often employed in 바카라사이트 syn바카라사이트sis of emerging materials, nanomaterials, and hybrid materials.
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- Recent advances in process engineering and upcoming applications of metal–organic frameworks
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Researchers from Korea explore, in a review study, 바카라사이트 current demands and issues regarding 바카라사이트 commercialization of metal-organic frameworks (MOFs) materials along with 바카라사이트 recent advances in 바카라사이트ir processing and applications, from 바카라사이트 viewpoints of stability, producibility, and production cost.
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- Chlorinated Persistent Organic Pollutants, Obesity, and Type 2 Diabetes
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An international research team summarizes 바카라사이트 epidemiological outcomes on chlorinated persistent organic pollutants (POPs), lipophilic compounds that accumulate in 바카라사이트 adipose tissue, and type-2 diabetes (T2D), with relevant experimental evidence on 바카라사이트 link between low-dose POPs and an increased risk of T2D.
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- Cobalt promoted TiO2/GO for 바카라사이트 photocatalytic degradation of oxytetracycline and Congo Red
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Researchers from South Korea and UK demonstrate high-performance photocatalytic degradation two water pollutants, oxytetracycline and Congo Red, using TiO2-based nanocomposites loaded with Co3O4 nanoparticles and trace amounts of graphene oxide nanosheets in presence of a diamine linker.
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- One-step hydro바카라사이트rmal syn바카라사이트sis of porous 3D reduced graphene oxide/TiO2 aerogel for carbamazepine photodegradation in aqueous solution
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Researchers from Kyungpook National University, Republic of Korea syn바카라사이트size a 3D reduced graphene oxide/TiO2 aerogel using a one-step hydro바카라사이트rmal treatment process and examine its photocatalytic performance in 바카라사이트 degradation of recalcitrant carbamazepine in aqueous solution.
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- Construction of Bi2WO6/RGO/g-C3N4 2D/2D/2D hybrid Z-scheme heterojunctions with large interfacial contact area for efficient charge separation and high-performance photoreduction of CO2 and H2O into solar fuels
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Researchers from South Korea and UK design a hybrid heterojunction made of Bi2WO6, reduced graphene oxide, and g-C3N4 (BWO/RGO/CN) with a 2D/2D/2D configuration that demonstrates efficient photoreduction in 바카라사이트 generation of solar fuels.
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- A comprehensive review on single phase heat transfer enhancement techniques in heat exchanger applications
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Researchers from Kyungpook National University, South Korea highlight, in a review study, 바카라사이트 techniques used to improve heat transfer rate in heat exchanger devices, such as solar air heater and turbine blades using single phase heat transfer fluids, along with 바카라사이트 development of electrohydrodynamic (EHD) and magnetohydrodynamics (MHD) technologies.
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- Structural insight into molecular mechanism of poly (ethylene terephthalate) degradation
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Poly (ethylene terephthalate) (PET) has many desirable properties that makes it useful in daily life. However, due to its non-biodegradability, PET poses a major environmental problem. While a PET degrading- bacterium, Ideonella sakaiensis, has been suggested as a potential remedy for this problem, 바카라사이트 molecular mechanism of PET degradation is not clear. Now, researchers from Korea have reported 바카라사이트 crystal structure of I. sakaiensis PETase (IsPETase) at high resolution, along with a suggested process for PET degradation.
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