Hydrothermally prepared Ag2O/CuO nanomaterial for an efficient chemical sensor development for environmental remediation

Enhanced visible light-mediated photocatalysis, antibacterial functions and fabrication of a 3-chlorophenol sensor based on ternary Ag2O·SrO·CaO

“…Thus, the I-V responses are varied with the concentration of 3-CP, which is similar to observations in previous articles detecting various environmental toxins with the I-V approach. [75][76][77][78][79] A calibration plot of the current versus concentration of 3-CP was executed, as illustrated in Fig. 12c.…”

The Use of Copper Oxide Thin Films in Gas-Sensing Applications

“…Recently, CuO was modified by Au [22], Fe [23], Li [23,24], Na [24], Pd [25], Pt [26], Px (Piroxicam) [27], Ag [28], Cr [28], Sb [28], and Si [28]. Various techniques have been studied to deposit CuO ( Figure 2), for example: magnetron sputtering [22,[28][29][30][31][32], sol-gel [33], thermal oxidation [14,34], hydrothermal techniques [4,5,15,20,21,[35][36][37], hydrothermal techniques with the electrospinning method [38,39], the spray pyrolysis technique [40], the microwave-assisted method [41], electron beam irradiation [42], microplasma synthesis [43], and successive ionic layer adsorption and reaction (SILAR) [44]. In [28], the author presented M-doped CuO-based thin film deposited using magnetron sputtering technology, which is a typical physical vapor deposition (PVD) technique.…”

“…It is a less expensive technology than rare materials used in gas-sensing applications [3]. Therefore, it has been utilized in various applications, including: solar energy cells [4], optoelectronics [5], catalysis [6][7][8], biosensors [9][10][11][12][13], photoelectrochemical sensors [14,15], supercapacitors [16], lithium ion batteries [17,18], infrared photo detectors [19], electrochemical sensors [20,21], and gas sensors. Figure 1b shows the number of papers published from 1995 to now, where CuO was studied.…”

Photocatalysis, photoinduced enhanced anti-bacterial functions and development of a selective m-tolyl hydrazine sensor based on mixed Ag·NiMn2O4 nanomaterials

“…Similar observed oxidation reactions to detect various toxins were described in our previous reports. [67][68][69] Then, the calibration of the m-THyd sensor, as shown in Fig. 14(c), was established from the relationship of current vs. concentration of m-THyd.…”