Sputtered vs. sol-gel TiO2-doped films: characterization and assessment of aqueous bisphenol A oxidation under UV and visible light radiation

Publication date: Available online 19 September 2019Source: Catalysis TodayAuthor(s): Gregor Žerjav, Gabriele Scandura, Corrado Garlisi, Giovanni Palmisano, Albin PintarAbstractIn this work, TiO2 thin films were deposited onto soda lime glass substrate by two different techniques: sol-gel (SG) and sputtering (SP). The photocatalytic film performance was assessed in a batch recycle reactor testing the photocatalytic degradation of aqueous solutions of bisphenol A (BPA). The use of supported catalysts in batch recycle reactor systems for the photocatalytic degradation of organic pollutants in waste water can be an alternative to nowadays more used slurry batch reactor systems and powdered catalysts, since it is more economically sustainable and not requiring the removal of catalyst particles after waste water treatment. The best photocatalytic activities were achieved with SG films due to their porosity, which allows BPA molecule to better access the catalytic site than in case of SP films. Raman spectroscopy also showed that SP films have more oxygen vacancies, which may end up acting as charge recombination centers. Doping of TiO2 thin films, either with N or Cu, enabled us to trigger the catalytic activity of films also under UV-free visible light radiation. Regardless the order of stacking in the double-layered films, the latter did not result in an increased catalytic activity towards the photodegradation of BPA.Graphical abstract
Source: Catalysis Today - Category: Chemistry Source Type: research

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Source: Reports of Practical Oncology and Radiotherapy - Category: Cancer & Oncology Source Type: research
Publication date: Available online 18 October 2019Source: Materials Science and Engineering: AAuthor(s): Xuan Zhao, Shiyun Dong, Shixing Yan, Xiaoting Liu, YuXin Liu, Dan Xia, Yaohui Lv, Peng He, Binshi Xu, Hongsheng HanAbstract24CrNiMo alloy steel is a low-alloy high strength steel and was used to fabricate engine components and brake discs. In the current study, Direct Laser Deposition (DLD) was used to additively manufacture 24CrNiMo alloy steel samples with high strength and ductility. The microstructural evolution, texture and mechanical properties of deposited samples can be affected by changing inter-layer time inte...
Source: Materials Science and Engineering: A - Category: Materials Science Source Type: research
Authors: Ogasawara N, Saitoh S, Denpou H, Kinowaki K, Akuta N, Suzuki F, Hashimoto M, Fujiyama S, Kawamura Y, Sezaki H, Hosaka T, Kobayashi M, Suzuki Y, Arase Y, Ikeda K, Fujii T, Kumada H Abstract We herein report a 48-year-old healthy woman who visited our hospital to investigate a 25-mm space-occupying lesion in the liver. The tumor was irregularly shaped and exhibited heterogeneous enhancement on dynamic computed tomography (CT). Whole-body positron emission tomography-CT showed an abnormal fluorodeoxyglucose uptake in the liver tumor, with a maximum standardized uptake value of 12.82. During the ensuing three ...
Source: Internal Medicine - Category: Internal Medicine Tags: Intern Med Source Type: research
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Source: Food Research International - Category: Food Science Source Type: research
This study investigated the role of lard-based diacylglycerol (DG) on the rheological and physicochemical properties of pork myofibrillar protein (MP) gels at different NaCl concentrations. Incorporated unpurified diacylglycerol (UDG) or purified diacylglycerol (PDG) and increased NaCl concentration significantly enhanced gel compression force, water-holding capacity, storage modulus values (G'), and loss modulus values (G“) (P
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Publication date: 5 February 2020Source: Journal of Molecular Structure, Volume 1201Author(s): C. Balakrishnan, M. Manonmani, S. Sivaraman, R. Markkandan, S. Rafi Ahamed, G. Vinitha, S.P. Meenakshisundaram, R.M. SockalingamAbstractNovel cocrystals of 18-crown-6 (18C6) with 5-nitroisophthalic acid (5NIPA) have been prepared by reaction in a solution of CH3OH–H2O (2:3, v/v) and C2H5OH–H2O (2:3, v/v) systems. The cocrystals 18-crown-6.5-nitroisophthalic acid. CH3OH.2(H2O) (I) and 18-crown-6.5-nitroisophthalic acid.3(H2O) (II) have been characterized by X-ray diffraction and constructed supramolecular assembly is t...
Source: Journal of Molecular Structure - Category: Molecular Biology Source Type: research
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Source: Journal of Molecular Structure - Category: Molecular Biology Source Type: research
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Source: Sensors and Actuators B: Chemical - Category: Chemistry Source Type: research
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Source: Microchemical Journal - Category: Chemistry Source Type: research
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Source: SafetyLit - Category: International Medicine & Public Health Tags: Alcohol and Other Drugs Source Type: news
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