Results 241 to 250 of about 25,002 (279)

The effects of g-C3N4/biochar and g-C3N4 on bacterial community in riverbed sediment

Environmental Science and Pollution Research, 2022
Biochar had been widely used to improve the activity of photocatalysts, the biochar-based photocatalysts had more potential for environmental pollution remediation, but their effect on the sediment remained unknown. To understand these, the typical photocatalyst g-C3N4 was modified by biochar to develop g-C3N4/biochar with enhanced photocatalytic ...
Yao Tang, Xuemei Hu, Zhenggang Xu, Xiaoyong Chen, Yelin Zeng, Guangjun Wang, Yonghong Wang, Gaoqiang Liu, Yunlin Zhao, Yaohui Wu   +9 more
openaire   +2 more sources

Dielectric constant of thin film graphitic carbon nitride (g-C3N4) and double dielectric Al2O3/g-C3N4

Applied Physics Letters, 2021
Graphitic carbon nitride (g-C3N4), a highly stable wide bandgap material, is yet to be evaluated for thin-film applications in devices since its basic electrical properties are not understood. We study its vacuum-deposited thin film form, and in combination with Al2O3, in sandwiched devices using capacitance–voltage (C-V) and current–voltage (I-V ...
Purna Chandra Patra, Y. N. Mohapatra
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Novel g-C3N4/g-C3N4 S-scheme isotype heterojunction for improved photocatalytic hydrogen generation

Applied Surface Science, 2019
Abstract Rationally designing heterostructure is a promising way to promote the charge carrier separation of intrinsic photocatalysts, thus contributes the improvement of solar to chemical energy conversion. Herein, a novel isotype heterojunction consisted of MCN and UCN, respectively derived from hydrothermally-treated melamine and urea, was ...
Quanlong Xu, Dekun Ma, Shuibin Yang, Zhengfang Tian, Bei Cheng, Jiajie Fan   +5 more
openaire   +2 more sources

Enhanced photocatalytic activity of ZnO/g-C3N4 composites by regulating stacked thickness of g-C3N4 nanosheets

Environmental Pollution, 2020
A self-assembly method was adopted to synthesize loading architecture of ZnO/g-C3N4 heterojunction composites by hybridization of g-C3N4 nanosheets and ZnO nanoparticles utilizing a refluxing method at a low temperature. More importantly, we provided a novel route to regulate the π-π restacking thickness of the g-C3N4 nanosheets among ZnO/g-C3N4 ...
Xingxing, Gao, Binzheng, Yang, Wenqing, Yao, Yajun, Wang, Ruilong, Zong, Jian, Wang, Xianchun, Li, Wenjie, Jin, Dongping, Tao   +8 more
openaire   +2 more sources

Mechanistic investigations on emission characteristics from g-C3N4, g-C3N4@Pt and g-C3N4@Ag nanostructures using X-ray absorption spectroscopy

Current Applied Physics, 2018
Abstract An improved method for the preparation of g-C3N4 is described. Currently, heating (>400 C°) of urea is the common method used for preparing the g-C3N4. We have found that sonication of melamine in HNO3 solution, followed by washing with anhydrous ethanol, not only reduce the crystallite size of g-C3N4 but also facilitate intriguing ...
Aditya Sharma, Mayora Varshney, Keun Hwa Chae, Sung Ok Won   +3 more
openaire   +1 more source

Novel torus shaped g-C3N4 photocatalysts

Applied Catalysis B: Environment and Energy, 2020
Abstract Torus shaped g-C3N4 particles were created for first time via flame spray pyrolysis (FSP) process and tested for photocatalytic H2 production under visible light irradiation. It was found that the precursor dispersion concentration is important for the particles final morphology as diverse shapes can be obtained.
Ilias Papailias, Nadia Todorova, Tatiana Giannakopoulou, Nikolaos Ioannidis, Panagiotis Dallas, Dimitra Dimotikali, Christos Trapalis   +6 more
openaire   +1 more source

Meso-g-C3N4/g-C3N4 nanosheets laminated homojunctions as efficient visible-light-driven photocatalysts

International Journal of Hydrogen Energy, 2017
Abstract Mesoporous g-C3N4/g-C3N4 (Meso-g-C3N4/g-C3N4) nanosheets laminated homojunctions have been fabricated via template-calcination strategy using melamine and amino cyanamide as co-precursors. The prepared Meso-g-C3N4/g-C3N4 nanosheets laminated homojunctions possess relative high surface area of 34 m2 g−1, large pore size of 15.0 nm and narrow ...
Siyu Tan, Zipeng Xing, Jiaqi Zhang, Zhenzi Li, Xiaoyan Wu, Jiayi Cui, Junyan Kuang, Junwei Yin, Wei Zhou   +8 more
openaire   +1 more source

Efficient exfoliation of g-C3N4 and NO2 sensing behavior of graphene/g-C3N4 nanocomposite

Sensors and Actuators B: Chemical, 2017
Abstract In this work, graphitic carbon nitride (g-C 3 N 4 ) nanosheets were prepared and employed to improve the gas sensitivity performance of graphene. g-C 3 N 4 nanosheets (NS-CN) were exfoliated from bulk powder using a proton-enhanced liquid-phase exfoliation method, where the co-ordinate bonds between nitrogen of g-C 3 N 4 and proton H + of
Nguyen Thuy Hang, Shaolin Zhang, Woochul Yang   +2 more
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Effect of g-C3N4 precursors on the morphological structures of g-C3N4/ZnO composite photocatalysts

Journal of Alloys and Compounds, 2019
Abstract In this study, g-C3N4/ZnO (CNZ) composite materials were synthesized through a one-step facile method with diverse precursors to investigate the interaction between g-C3N4 precursors and ZnO and the resultant morphological structures. Thiourea (Thio), urea, and dicyandiamide (DCDA) were used as g-C3N4 precursors.
Haewon Jung, Thanh-Truc Pham, Eun Woo Shin   +2 more
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g-C3N4/B doped g-C3N4 quantum dots heterojunction photocatalysts for hydrogen evolution under visible light

International Journal of Hydrogen Energy, 2019
Abstract Developing high activity and eco-friendly photocatalysts for water splitting is still a challenge in solar energy conversion. In this paper, B doped g-C3N4 quantum dots (BCNQDs) were prepared via a facile molten salt method using melamine and boron oxide as precursors.
Yaping Wang, Yike Li, Jingli Zhao, Jianshe Wang, Zhongjun Li   +4 more
openaire   +1 more source