نتایج جستجو برای: moo3g c3n4

تعداد نتایج: 1225  

2014
David James Martin Kaipei Qiu Stephen Andrew Shevlin Albertus Denny Handoko Xiaowei Chen Zhengxiao Guo Junwang Tang

The major challenge of photocatalytic water splitting, the prototypical reaction for the direct production of hydrogen by using solar energy, is to develop low-cost yet highly efficient and stable semiconductor photocatalysts. Herein, an effective strategy for synthesizing extremely active graphitic carbon nitride (g-C3N4) from a low-cost precursor, urea, is reported. The g-C3N4 exhibits an ext...

2016
Xiufang Chen Ligang Zhang Bo Zhang Xingcui Guo Xindong Mu

Graphitic carbon nitride nanosheets were investigated for developing effective Pt catalyst supports for selective hydrogenation of furfural to furfuryl alcohol in water. The nanosheets with an average thickness of about 3 nm were synthesized by a simple and green method through thermal oxidation etching of bulk g-C3N4 in air. Combined with the unique feature of nitrogen richness and locally con...

2017
Shaolin Zhang Nguyen Thuy Hang Zhijun Zhang Hongyan Yue Woochul Yang

Figure S1. SEM of g-C3N4/graphene nanocomposite.

ژورنال: پژوهش نفت 2019

در این پژوهش فرآیند گوگردزدایی اکسیداسیونی (ODS) از مدل نفتی ppm 1000 دی‌بنزوتیوفن (DBT) با استفاده از کاتالیست MoO3/g-C3N4 مورد مطالعه قرار گرفت. H2O2 و استونیتریل به‌ترتیب به‌عنوان اکسیدکننده و استخراج‌کننده مورد استفاده قرار گرفتند. اثر بارگذاری فلز مولیبدن برروی g-C3N4 و سپس شرایط عملیاتی مربوط به فرآیند ODS شامل دما، مقدار کاتالیست، نسبت مولی H2O2/DBT و زمان واکنش با استفاده از طراحی آزمای...

2017
Wee-Jun Ong

In recent years, two-dimensional (2D) graphitic carbon nitride (g-C3N4) has elicited interdisciplinary research fascination among the scientific communities due to its attractive properties such as appropriate band structures, visible-light absorption, and high chemical and thermal stability. At present, research aiming at engineering 2D g-C3N4 photocatalysts at an atomic and molecular level in...

Journal: :Materials research express 2023

Abstract Graphitic carbon nitrides (g-C3N4s) have continued to attract attention as metal-free, low-cost semiconductor catalysts. Herein, a systematic synthesis and characterization of g-C3N4s prepared using four conventional precursors (urea (U), dicyandiamide (DCDA), semicarbazide hydrochloride (SC-HCl), thiosemicarbazide (TSC)) an unexplored one (thiosemicarbazide (TSC-HCl)) is presented. Eq...

Objective: With the increasing incidence of cancer and the dramatic effect of early detection on treatment and increase patient's life, many efforts have been devoted to making sensitive diagnosis systems. DNA as a biomarker for diagnosis of different types of cancers at the early stages of illness has attracted much attention.Methods: In this research novel electrochemical biosensor was ...

2016
Rajendra C. Pawar Suhee Kang Jung Hyun Park Jong-ho Kim Sunghoon Ahn Caroline S. Lee

A one-dimensional (1D) nanostructure having a porous network is an exceptional photocatalytic material to generate hydrogen (H2) and decontaminate wastewater using solar energy. In this report, we synthesized nanoporous 1D microrods of graphitic carbon nitride (g-C3N4) via a facile and template-free chemical approach at room temperature. The use of concentrated acids induced etching and lift-of...

Journal: :Catalysts 2023

Copper-based zeolite catalysts are widely used in methanol synthesis from methane oxidation, but their photothermal catalytic properties have seldom been explored. This study examines the effect of preparation method on Cu-based composite graphite-phase carbon nitride (Cu-MOR/g-C3N4) for direct oxidation by catalysis. Four different methods employed: liquid phase ion exchange (Cu-MOR/g-C3N4-IE)...

Journal: :Nanoscale 2018
Sulagna Patnaik Gayatri Swain K M Parida

Herein, a novel Cu-MoO3/g-C3N4 hybrid nanocomposite was successfully synthesized by a two-step strategy of one-pot pyrolysis followed by the impregnation method. The structure, phase, morphology and electronic environment of MoO3, g-C3N4 and Cu in the composite were determined by various characterization methods. The oxygen vacancies of MoO3 were ascertained by UV-DRS, Raman, and XPS analysis. ...

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