Results 111 to 120 of about 2,078,026 (302)

Evaluation of the Photocatalytic Performance of g-C₃N₄/TiO₂ Nanocomposite in the Removal of Eosin Y Dye from Aqueous Solutions under Visible Light Irradiation [PDF]

آب و فاضلاب
Contamination of surface and groundwater by chemicals and wastewater poses a serious threat to human health and ecosystems. Synthetic dyes are persistent pollutants with complex structures.
Esmail Torshabi, Nader Bahramifar, Abass Esmaili Sari   +2 more
doaj   +1 more source

Orientation of graphitic planes during annealing of "dip deposited" amorphous carbon film: A carbon K-edge X-ray absorption near-edge study

, 2009
Annealing effect of amorphous carbon thin films on Si(1 0 0) substrates is studied by normal incidence and angle dependent carbon K-edge X-ray absorption near-edge structure (XANES) spectroscopy.
Ray, S. C.; Pao, C. W.; Tsai, H. M.; Bose, B.; Chiou, J. W.; 彭維鋒; Pong, Way-faung; Dasgupta, D.
core   +1 more source

Janus Nanostructures Enabled by Confined Interfacial Engineering for Enhanced Electromagnetic Response

Advanced Science, EarlyView.
Confined diffusion‐driven interfacial engineering enables the nanoscale construction of asymmetric SiC@C Janus hollow nanoshells, achieving synergistic impedance matching and electromagnetic energy dissipation for highly efficient broadband microwave absorption at ultralow filler loading.
Limeng Song, Cheng Song, Feiyue Hu, Yongqiang Chen, Linan Wang, Huagao Wang, Li Guan, Duo Chen, Kesong Yu, Yabo Huang, Shihao Jia, Xin Xu, Qiancheng Gao, Dou Zhang, Hailong Wang, Haijiao Xie, Rui Zhang, Bingbing Fan   +17 more
wiley   +1 more source

6.1% Volumetric Negative Thermal Expansion Induced by the Reversible Reconstructive Phase Transition in Pb‐Free Bi1−xLnxCoO3 (Ln: Lanthanoid)

Advanced Science, EarlyView.
Perovskite‐type oxide lanthanoid‐substituted BiCoO3 exhibits a reversible negative thermal expansion (NTE) originated from the coordination change from the CoO5 pyramid to the CoO6 octahedron due to melting of the dxy orbital ordering in the d6 electron configuration, and the 6.1% volume shrinkage in Bi0.82Nd0.18CoO3 is the largest ever observed in the
Yuki Sakai, Kazuki Takahashi, Shogo Wakazaki, Takumi Nishikubo, Jun Miyake, Takehiro Koike, Teppei Nagase, Takafumi Yamamoto, Kano Hatayama, Masaichiro Mizumaki, Masaki Azuma   +10 more
wiley   +1 more source

Anomalous Enhancement in MXene‐Based Electrochemical Actuators: Pseudo‐Capacitance‐Induced Multi‐Charge Accumulation in Confined Space

Advanced Science, EarlyView.
We elucidate the electrochemical actuation mechanism of 2D material‐based electrodes within a MXene‐centered framework, linking atomic‐scale surface chemistry to macroscopic performance (see schematic). Mechanistically, the reduction of Ti─O─Ti sites in H2SO4 triggers the accumulation of hydrated ions at confined active sites, resulting in anomalous ...
Jiang Xu, Jipeng Feng, Bingqing Hu, Xude Li, Shifei Huang, Shanhai Ge, Guoxiu Wang   +6 more
wiley   +1 more source

Activating Ionic Carbon Nitrides via Epitaxial Dyadic Coupling for Efficient Solar‐Driven H2O2 Generation

Advanced Science, EarlyView.
Epitaxial integration of a C1N1 phase onto KPHI creates a dyadic charge‐transfer nanostructure with strong interfacial electronic coupling. This architecture drives directional electron transfer from KPHI to C1N1, enabling efficient cocatalyst‐free solar H2O2 production.
Haijian Tong, Chenyan Zhao, Christian Mark Pelicano, Markus Antonietti   +3 more
wiley   +1 more source

Modified carbon nitride nanozyme as bifunctional glucose oxidase-peroxidase for metal-free bioinspired cascade photocatalysis

Nature Communications, 2019
Glucose oxidase (GOx) and horseradish peroxidase (HRP) are used as an enzymatic cascade for blood glucose monitoring. Here, the authors developed a metal-free, graphitic carbon nitride-based nanozyme with GOx- and HRP-like activities and combine it with ...
Peng Zhang, Dengrong Sun, Ara Cho, Seunghyun Weon, Seonggyu Lee, Jinwoo Lee, Jeong Woo Han, Dong-Pyo Kim, Wonyong Choi   +8 more
doaj   +1 more source

Graphene/graphitic carbon nitride hybrids for catalysis

, 2017
Benefiting from the large specific surface area, outstanding electronic, optical, thermal and mechanical properties of graphene, as well as the exceptional electronic band structure and good physicochemical stability of graphitic carbon nitride (g-C3N4),
Nan Chen, Liangti Qu, Qing Han, Jing Zhang   +3 more
core   +1 more source

Van der Waals Heterostructures for Next‐Generation Spintronics: Multiferroic‐Mediated Magnetoelectric Properties

Advanced Science, EarlyView.
As CMOS technology approaches fundamental energy limits, new paradigms for low‐power information processing are required. Magnetic systems are attractive for their spin transport, yet current‐induced magnetization control is energy inefficient. Multiferroic heterostructures enable energy‐efficient electric field manipulation of magnetism.
Donghyeon Lee, Jiwoong Yang, Inhyeok Oh, Sanghan Lee   +3 more
wiley   +1 more source

Preparation of graphitic carbon nitride by electrodeposition

Chinese Science Bulletin, 2003
The CNx thin film was deposited on Si(100) substrate from a saturated acetone solution of cyanuric trichloride and melamine (cyanuric trichloride/melamine=1: 1.5) at room temperature. X-ray diffraction (XRD) results showed that the diffraction peaks in the pattern coincided well with those of graphite-like carbon nitride calculated in the literature ...
openaire   +1 more source