نتایج جستجو برای: bioi

تعداد نتایج: 172  

Journal: :Catalysts 2022

Heterogeneous photocatalysis under visible light irradiation allows performing of selective oxofunctionalization hydrocarbons at ambient temperature and pressure, using molecular oxygen as a sacrificial reagent potential use sunlight sustainable low-cost energy source. In the present work, photocatalytic material based on heterojunction titanium dioxide bismuth oxyiodide was used photocatalyst ...

Journal: :Catalysts 2021

In the synthesis method of a BiVO4 photoanode via BiOI flakes, film is formed by electrochemical deposition in Step 1, and vanadium (V) source solution placed drop-casting on 2. Following this, particles are converted from BiOI–(V species) precursors annealing. However, it challenging to evenly distribute species among flakes. As result, conversion reaction form does not proceed simultaneously ...

2004

• Shaffer, B. M ., Q. JI microse. Sei., 98, 377-392 ; 393405 (1957). 7 Shaffer, B. M., Q. JI rn/erose. Sei. , 99, 103-121 (1958). • Shaffer, B. M., Adv. Morphogen., 2,109182 (1962). 9 Bonner,J. T .,J. exp.Zool., 106, 1-261947). 10 Banner, J . T ., et al., Devl Biol., 20, 72-87 (1969). . 11 Gerisch, G ., Curr. Top. devl Bioi., 3, 157-197 (1968); Naturwissenschaften, 58, 430-438 (1971). 12 Alcant...

Journal: :Catalysts 2023

The persulfate-based advanced oxidation processes employing heterogeneous photocatalysts to generate sulfate radicals (SO4•?) from peroxydisulfate ion (PDS, S2O82?) have been extensively investigated remove organic pollutants. In this work, BiOX (X = Cl, Br, and I) were activate PDS enhance the transformation rate of various substances under UV (398 nm) Vis (400–700 radiation. For BiOCl BiOBr, ...

Journal: :Small structures 2023

Although the internal electric field (IEF) of bismuth oxyiodide (BiOI) is acknowledged as a potent driving force for efficient charge separation, enhancing intensity IEF remains challenge. Herein, highly crystalline BiOI nanosheets with I-rich surface are employed to intensify and direct migration. In comparison I-poor nanosheets, which possess Bi−O layer termination I-defects, demonstrates 62....

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه محقق اردبیلی - دانشکده علوم پایه 1393

در این پایان نامه نانو کامپوزیت های zno-bioi به عنوان جاذب های جدید، به روش های مختلف تهیه شدند. نانو-کامپوزیت های تهیه شده توسط تکنیک های پراش پرتو ایکس (xrd)، میکروسکوپ الکترونی روبشی (sem)، پراکندگی انرژی پرتو ایکس (edx)، طیف سنجی فوتو الکترونی اشعه ایکس (xps)، طیف سنجی بازتاب نفوذی (drs) و مادون قرمز (ft-ir)، تجزیه وزن سنجی حرارتی (tga) و تکنیک بی ای تی (bet) مورد بررسی قرار گرفتند. نتایج ن...

Journal: :Journal of Alloys and Compounds 2021

Nanomaterials are vital to the realization of photoelectrochemical (PEC) sensing platform that provides sensitive detection and quantification low-abundance biological samples. Here, this work reports a Schottky junction-based BiOI/Ti3C2 heterostructure, used as photocathode for PEC bioanalysis. Specially, we realize in situ growth flower-like BiOI on 2D intrinsically negatively charged Ti3C2 M...

Journal: :Mikrochimica Acta 2021

A cathodic photoelectrochemical sensor has been developed for the determination of exosomes, based on a dual-signal reduction strategy. heterostructure NiO/BiOI/Au NP/CdSe was synthesized as sensing interface, which is able to suppress recombination electron-hole pairs and produce higher photocurrent. The obtained materials were characterized, mechanism generation photocurrent proposed. CdSe QD...

Journal: :ACS Applied Materials & Interfaces 2021

Heterojunction catalysts have drawn increasing interest for the visible light-driven Fenton reaction and bring tremendous opportunities environmental remediation. Herein, a BiOI/MIL-53(Fe) Z-scheme heterojunction (named BMFe) was synthesized first time via facile strategy. Compared with pristine BiOI MIL-53(Fe) catalysts, two-dimensional/three-dimensional (2D/3D) catalyst manifested remarkable ...

Journal: :Journal of the Brazilian Chemical Society 2022

The development of visible-light active photocatalysts is vital to harvest the solar irradiation and build efficient photoelectrochemical devices. Bismuth oxyhalide (BiOCl, BiOBr BiOI) materials stand out due their remarkable properties, e.g., band gap energy can be tuned from 1.9 3.4 eV depends on halide employed. However, hydrothermal synthesis this material class was not properly investigate...

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