Synthesis of non-doped and non-modified carbon dots with high quantum yield and crystallinity by one-pot hydrothermal method using a single carbon source and used for ClO− detection

Análisis de la microestructura de humos de soldadura de aceros de bajo y medio contenido de carbon

“…Peaks in the band range of 1012 and 420 cm -1 were obtained due to the tension of the metal oxide bonds. The FTIR peaks of the elements in the source fume obtained according to EDS analysis were consistent with the literature Al-O (Jamal et al, 2014;Benykhlef et al, 2016;Yi et al, 2018) (Basu et al, 2011;Farzaneh and Najafi, 2011;Abdullah et al, 2014), Cu-O (Zheng et al, 2010;Sahai et al, 2016;Ponmudi et al, 2019), Fe-O (Abdullah et al, 2014;Golbabaei and Khadem, 2015), Mn-O (Chen and He, 2008;Sevilla and Fuertes, 2009;Lin et al, 2012) (Saikia and Parthasarathy, 2010;Vaculikova et al, 2011;Diko et al, 2016;Bahah et al, 2019;Mohammadi et al, 2019), Ti-O (Jamal et al, 2014), V-O (Wang et al, 2006;Habtemariam et al, 2019), Zr-O (Wang et al, 2019b) metal oxides and oxide structures in different structures because metal oxides generally exhibit peaks below 1000 cm -1 , which may be caused by inter-atomic vibrations (Lagashetty et al, 2007).…”

“…According to the peak values shown in Fig. 4; 3296, peaks in the band range of 2921 cm -1 (Ehrman et al, 1999;Jenkins et al, 2005a;Jenkins and Eagar, 2005b;Wang et al, 2006;Chen and He, 2008;Sowards et al, 2008;Sevilla and Fuertes, 2009;Gibot and Vidal, 2010;Saikia and Parthasarathy, 2010;Zheng et al, 2010;Vaculikova et al, 2011;Basu et al, 2011;Farzaneh and Najafi, 2011;Lin et al, 2012;Abdullah et al, 2014;Jamal et al, 2014;Golbabaei and Khadem, 2015;Naushad et al, 2015;Diko et al, 2016; Sahai et al, 2016;Benykhlef et al, 2016;Yi et al, 2018;Ge et al, 2019;Habtemariam et al, 2019;Bahah et al, 2019;Abinaya et al, 2019;Alias et al, 2019;Altunal et al, 2019;Boroń et al, 2019;Reddy et al, 2019;Karthik et al, 2019;Karunathilaka et al, 2019;Kono et al, 2019;Mohammadi et al, 2019;Ponmudi et al2019;Scaccia et al, 2019;Wang et al, 2019a;Wang et al, 2019b;Yang et al, 2019), indicate O-H bonding i...…”

Noval Dual-Emission Fluorescence Carbon Dots as a Ratiometric Probe for Cu2+ and ClO− Detection

“…When ClO − was added to the NCD solution, the strong oxidation destroyed the two emission centers (372 and 454 nm) of the NCDs and enhanced the nonradiative carrier depopulation, leading to a further weakening of the fluorescence intensity. Compared with other probes reported previously, the NCDs probe demonstrated lower LOD and wider range for ClO − detection [ 12 , 14 , 42 ].…”

“…Among these, ion detection is the most common application of CDs, and good results have been achieved for actual sample detection with CDs. CDs are particularly useful for detecting ions because of their good selectivity [ 11 , 12 , 13 ], low detection limit [ 14 , 15 ], and wide detection range [ 16 , 17 , 18 ], and hence, they are attracting the increasing interest of the research community. However, the vast majority of CDs used for ion detection display only single emission, which makes the detection system susceptible to background noise and probe concentration, as well as the complexity of the real sample.…”

Green Synthesis of Lutein-Based Carbon Dots Applied for Free-Radical Scavenging within Cells

“…The QY was measured by the standard sample reference method [ 30 , 31 , 32 ]. Using quinine sulfate (QY = 0.54) as the standard sample, the calculation formula is as follows: where Ø is the QY, I is the measured integrated emission intensity, n is the refractive index, and A is the optical density.…”