Synthesis and Characterization of PANI/ZnO Nanocomposites

Abstract

This paper presents our results on the successful fabrication of HCl‐doped polyaniline (PANI)/ZnO nanocomposites via an electrochemical synthesis route. Different weight percents of ZnO nanoparticles were uniformly dispersed in the PANI matrix. The interaction between the dispersed ZnO nanoparticle and PANI was studied using X‐ray diffraction, ultraviolet–visible absorption spectroscopy, photoluminescence (PL) spectroscopy, X‐ray photoelectron spectroscopy, atomic force microscopy, thermogravimetry, and transmission electron microscopy. It is shown that the doping state of the PANI/ZnO nanocomposite is highly improved as compared to that of PANI. The dispersed PANI/ZnO nanocomposites exhibit enhanced PL behavior and thermal stability.

Low‐temperature synthesis of ZnO/ZnS/CuS heterojunction based on solution‐processed nanosheet array with enhanced photocatalytic activity

“…29 In the high-resolution XPS spectrum of Zn 2p (Figure 4C), two main peaks were observed at 1024.9 and 1047.3 eV, which were assigned to Zn 2p 3/2 and Zn 2p 1/2 , respectively, indicating the nature of Zn bivalent cations. 30 The peak of O 1 s made it appearance in 532.4 eV in Figure 4D, which exhibited the appearance of O with negative bivalent. In Figure 4E, after curve fitting, the two fitted peaks located in 161.2 and 162.7 eV, corresponding to S 2p 3/2 and S 2p 1/2 , depicting the presence of S with negative bivalent.…”

Effect of Calcination Temperature on the Structural, Thermodynamic, and Optical Properties of MoO3 Nanoparticles

“…The change from the hexagonal to the more stable orthorhombic phase is due to the increase in the calcination temperature, which increases the pressure that provides sufficient surface free energy and internal energy. This energy difference is responsible for the new crystal structure in the final product . The change in the peaks with change in crystallite phase is indicated in Figure in the case of MoO 3 nanoparticles synthesized using the sol–gel method.…”

“…Their optical properties are strongly dependent on the physical nature of the nanoparticles, which correlates with the crystal structure, size, and shape . The production of nanoparticles of a specific crystal structure is a challenge for material scientists, and various methods have been employed such as sol–gel, sonication, hydrothermal, reflux, precipitation, electrodeposition, and vapor deposition …”

A review on transition metal oxides based nanocomposites, their synthesis techniques, different morphologies and potential applications

“…Many transition metal oxides based nanocomposites are reported in literature for their useful vital practical applications such as Carbon nanotube -ZnO nanocomposite reported as electrode material for supercapacitor escorted by maximum calculated specific capacitance of 323.9 Fg -1 [15], Synthesized CuO-ZnO nanocomposite were reported as antibacterial agent [16], ZnO/CuO nanocomposites was reported with humidity sensor property [17]. And many other such as GO/ZnO nanocomposite for phtocatalytic degradation of basic fuchsin dye [18], Polyaniline/ZnO nanocomposite as sensor [19], Graphene -ZnO nanocomposite as Photovoltaic cells [20] etc were reported in last few years.…”