scholarly journals Ultrafast synthesis of near-zero-cost S-doped Ni(OH)2 on C3N5 under ambient conditions with enhanced photocatalytic activity

RSC Advances ◽  
2021 ◽  
Vol 11 (57) ◽  
pp. 36166-36173
Author(s):  
Lixiao Han ◽  
Cong Peng ◽  
Jinming Huang ◽  
Shengyao Wang ◽  
Xiaohu Zhang ◽  
...  

2D S–Ni(OH)2 is facially planted on 2D C3N5 at room temperature in 30 minutes via a reaction between Ni(NO3)2 and Na2S in aqueous solution. Due to quick internal charge transfer efficiency, the hybrid is highly efficient for photocatalytic H2 production.

1995 ◽  
Vol 50 (10) ◽  
pp. 949-952 ◽  
Author(s):  
A. Kawski ◽  
G. Piszczek ◽  
B. Kukliński

Abstract Absorption, emission and emission anisotropy spectra of 4-cyano-N,N-dimethylaniline (CDMA) and 4-cyano-2,6,N,N-tetramethylaniline (CTMA) were investigated in polyvinyl alcohol) (PVA) films. It was found that the CDMA and CTMA molecules in PVA films at room temperature display phosphorescence, the emission band of which overlaps with the longwave fluorescence band a. The low value of the emission anisotropy shows that in the rigid PVA matrix there are microscopic defects in the form of empty spaces in which a certain fraction of the CDMA or CTMA molecules can attain twisted intramolecular charge-transfer states (TICT) due to rotational relaxation. The emission anisotropies in the shortwave, b, and longwave, a, fluorescence bands of CDMA in propylene glycol were found to be distinctly different, this indicating that the directions of the transition moments are not parallel.


2018 ◽  
Vol 47 (7) ◽  
pp. 2285-2291 ◽  
Author(s):  
Changli Zhang ◽  
Zhong Han ◽  
Mengjia Wang ◽  
Zhenghao Yang ◽  
Xueqin Ran ◽  
...  

BODIPY was modified with α-4-aminostyryl group to form a colorimetric/fluorometric dual mode ratiometric Ag+ sensor, and the sensor-doped PVC film enables the naked-eye Ag+ detection in totally aqueous solution.


2021 ◽  
Author(s):  
Gyeongjin Kim ◽  
Donghwan Choi ◽  
Cheal Kim

Abstract A new benzothiazole-based chemosensor BTN (1-((Z)-(((E)-3-methylbenzo[d]thiazol-2(3H)-ylidene)hydrazono)methyl)naphthalen-2-ol) was synthesized for the detection of Cu2+. BTN could detect Cu2+ with “off-on” fluorescent response from colorless to yellow irrespective of presence of other cations. Limit of detection for Cu2+ was determined to be 3.3 µM. Binding ratio of BTN and Cu2+ turned out to be a 1:1 with the analysis of Job plot and ESI-MS. Sensing feature of Cu2+ by BTN was explained with theoretical calculations, which might be owing to internal charge transfer and chelation-enhanced fluorescence processes.


RSC Advances ◽  
2016 ◽  
Vol 6 (107) ◽  
pp. 105638-105643 ◽  
Author(s):  
Shutao Gao ◽  
Tao Feng ◽  
Qiuhua Wu ◽  
Cheng Feng ◽  
Ningzhao Shang ◽  
...  

A novel bimetallic catalyst, AgPd nanoalloy supported on Vulcan XC-72 carbon (AgPd@C-72), has been successfully fabricated and used for catalyzing H2 generation from formaldehyde aqueous solution at room temperature for the first time.


2020 ◽  
Vol 22 (39) ◽  
pp. 22190-22194
Author(s):  
Andrei V. Afonin ◽  
Danuta Rusinska-Roszak

We report a new approach to quantify the push–pull effect in molecules with internal charge transfer.


2019 ◽  
Vol 48 (10) ◽  
pp. 3223-3230 ◽  
Author(s):  
Siriwan Praban ◽  
Parichat Piromjitpong ◽  
Vagulejan Balasanthiran ◽  
Savithra Jayaraj ◽  
Malcolm H. Chisholm ◽  
...  

Metal(iii) complexes supported by porphyrin and salen ligands were highly efficient for rac-lactide polymerization at room temperature giving isotactic-enriched PLA.


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