نتایج جستجو برای: g c3n4

تعداد نتایج: 441477  

Journal: :Chemosensors 2022

In this paper, a composite of tin diselenide (SnSe2) functionalized by graphite-phase carbon nitride (g-C3N4) was successfully prepared hydrothermal method, and characterized X-ray diffraction (XRD), scanning electron microscope (SEM) photoelectron spectroscopy (XPS). These microstructure characterization results verified the successful synthesis multilayer g-C3N4/rod-shaped SnSe2 composite. Th...

2015
Huan-Yan Xu Li-Cheng Wu Hang Zhao Li-Guo Jin Shu-Yan Qi Yuriy Dedkov

Graphitic carbon nitride (g-C3N4) used in this work was obtained by heating dicyandiamide and melamine, respectively, at different temperatures. The differences of g-C3N4 derived from different precursors in phase composition, functional group, surface morphology, microstructure, surface property, band gap and specific surface area were investigated by X-ray diffraction, Fourier transform infra...

Journal: :Physical chemistry chemical physics : PCCP 2015
Kohsuke Mori Taiki Itoh Hiroki Kakudo Tomoyuki Iwamoto Yoichi Masui Makoto Onaka Hiromi Yamashita

A noble-metal-free photocatalytic H2 production system consisting of a Ni-based catalyst, visible-light-responsive organic dye, and graphitic carbon nitride (g-C3N4) as a support has been developed. Characterization by means of XAFS revealed that the deposition of a trinuclear Ni precursor complex, Ni(NiL2)2Cl2 (L = β-mercaptoethylamine), on the g-C3N4 affords a monomeric Ni(ii) species involvi...

Journal: :Chemical communications 2014
Zheng Xing Zhigang Chen Xu Zong Lianzhou Wang

A new type of graphitic C3N4-based composite photocatalysts was designed and prepared by co-loading PEDOT as a hole transport pathway and Pt as an electron trap on C3N4. The as-prepared C3N4-PEDOT-Pt composites showed drastically enhanced activity for visible light-driven photocatalytic H2 production compared to those of C3N4-PEDOT and C3N4-Pt, possibly due to the spatial separation of the redu...

Journal: :Chemical communications 2014
Po Wu Jiarui Wang Jing Zhao Liejin Guo Frank E Osterloh

A high rate of 2.23 mmol h(-1) g(-1) (quantum efficiency of 6.67% at 400 nm) for visible light driven photocatalytic H2 evolution can be achieved with g-C3N4 by alkalization of the solution to a pH of 13.3, due to accelerated transfer of photoholes to the sacrificial donor.

Journal: :Journal of Polymers and The Environment 2021

Polyvinylidene fluoride (PVDF)/g-C3N4/Chitosan thin film membranes were prepared by immersing of PVDF/g-C3N4 membrane in solution containing various concentrations chitosan for removal Direct Blue 14 dye (an anionic dye) from aqueous solutions. The resulting characterized XRD, FESEM, TEM and AFM. Also, pure water flux, salt rejection, content antifouling properties investigated. demonstrate tha...

2015
Feng Li Yuanyuan Qu Mingwen Zhao

An efficient membrane for helium separation from natural gas is quite crucial for cryogenic industries. However, most experimentally available membranes fail in separating helium from small molecules in natural gas, such as H2, as well as in 3He/4He isotopes separation. Using first-principles calculations, we theoretically demonstrated that the already-synthesized graphitic carbon nitride (g-C3...

Journal: :Journal of Photochemistry and Photobiology A-chemistry 2022

In the present work, UVA light-driven g-C3N4/TiO2 photocatalyst was synthesized for photodegradation of Carbamazepine (CBZ) in aqueous medium. The morphological, optical properties and structure TiO2, g-C3N4 prepared composites were analyzed using X-ray diffraction (XRD), Nitrogen adsorption–desorption isotherm based on BET, Raman Spectroscopy, Scanning Electron Microscopy (SEM) with EDX, UV–vi...

Journal: :Advanced energy and sustainability research 2023

Herein, well-crystallized ZnTiO3 particles are first prepared by hydrothermal method. A series of S-scheme heterojunction photocatalysts ZnTiO3/g-C3N4 (referred to as ZTO/CN) with different mass ratios synthesized successfully doping in g-C3N4 precursors and loading onto nanosheets calcination. It is clearly found that the loaded on X-ray diffractometer, energy-dispersive spectra, high-resoluti...

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