
Enhanced visible photocatalytic oxidation of NO by repeated …
2019年1月28日 · Herein, we systematically studied the effect of post calcination times (PCT) on the visible photoreactivity of bulk gCN towards NO oxidation and hydrogen production. It was found that aggregated gCN nanosheets (gCN-NSs) …
Structural design of dual Z-scheme GCN/CdO/CaFe2O4 ternary ...
2025年2月1日 · ESR and scavenging tests confirmed the vital role of • O 2 −, and • OH radicals during CR degradation. Additionally, the magnetic nature of ternary heterojunction caused excellent separation of photocatalysts, which resulted in good stability and recyclability with 80 % removal efficiency even after 5 catalytic cycles (confirmed by ...
Angew:水也能供氢?羟基碳氮告诉你答案 - X-MOL科学 ...
近日,苏州大学的苏韧教授、天津大学-新加坡国立大学福州联合学院的Tingbin Lim教授课题组和中科合成油技术股份有限公司合作设计了羟基化石墨相氮化碳(gCN-OH)作为光催化剂,以水提供氢源实现了可见光下的HAT反应(图1)。
Long-Term Characterization of Oxidation Processes in Graphitic
2023年9月6日 · In this study, we investigate graphitic carbon nitride (gCN) derived from various precursors, namely melamine (CN-M), urea (CN-U), thiourea (CN-TU), as well as supramolecular assemblies of cyanuric acid-melamine (CN-CM) and supramolecular assemblies of cyanuric acid-melamine-barbituric acid (CN-CMB) (Figure 1 a).
(A) Photocurrent-time dependence of GCN and GCNF-0.5 under ...
Although graphitic carbon nitride (GCN) has been intensively studied in photocatalytic research, its performance is still hindered by its inherently low photo-absorption and inefficient charge...
Graphitic Carbon Nitride (g-C3N4)-Based Photocatalysts for ...
2023年4月29日 · Among various semiconductor photocatalysts, g‑C 3 N 4 (GCN) is considered a robust photocatalyst because of several fascinating properties like metal-free chemical nature, visible-light-responsive activity with moderate band gap of 2.7 eV, tunable electronic structure, facile synthesis, low cost, high thermal and chemical stability.
Covalently bonded ternary photocatalyst comprising MoSe2/black ...
2024年9月1日 · Furthermore, the presence of electron spin resonance (ESR) signals at g = 2.002 in Fig. 1 f indicates the existence of N-vacancies resulting from the surface defects of N in GCN. The ESR signal of N vacancies in MBG is stronger than those in Bpn/GCN (BG), MoSe 2 /GCN (MG) and GCN, revealing the formation of abound covalent bonds when the ...
Figure 8. In situ electron spin resonance (ESR) spectra of...
In this study, an efficient catalyst based on graphitic carbon nitride nanosheets (CN) and copper (II) supported β-cyclodextrin (β-CD/Cu (II)) was synthesized and used for tandem oxidative...
C-, N-Vacancy defect engineered polymeric carbon nitride towards ...
As an alluring metal-free polymeric semiconductor material, graphite-like carbon nitride (g-C 3 N 4; abbreviated as GCN) has triggered a new impetus in the field of photocatalysis, mainly favoured from its fascinating physicochemical and photoelectronic structural features.
自组装超分子前驱体制备管状氮化碳及模拟太阳光光催化降解水中 …
2021年8月14日 · 为改良氮化碳性能,利用超分子自组装前驱体热聚合方法成功制备了微米级管状石墨相氮化碳 (TCN),使用扫描电镜 (SEM)、傅里叶变换红外光谱 (FT-IR)、X射线衍射 (XRD)、紫外-可见漫反射光谱 (UV-vis DRS)等技术手段,对TCN的形貌、元素组成、晶体结构、电化学性能等进行表征. 研究还选取双氯芬酸 (DCF)作为目标污染物,探索其降解行为与机理.