Polyaniline–CdS nanocomposite from organometallic cadmium precursor

Khanna, Pawan K.; Lonkar, Sunil P.; Subbarao, V.V.V.S.; Jun, Ki‐Won

doi:10.1016/j.matchemphys.2004.04.003

Cited by 67 publications

(14 citation statements)

References 16 publications

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“…Many conducting polymers are known as good hole conducting materials, which carry current with several milliamperes [9,10]. These organic conducting polymers are the excellent hosts for the trapping of metals and semiconducting nanoparticles due to their ability to act as stabilizers or surface capping agents [11][12][13][14]. Amongst conducting polymers, polyaniline (PANI) is one of the most studied electrically conducting polymers because of its good processibility, environmental stability and potential in the field of catalysis, biosensors, batteries, and electronic technology [15].…”

Section: Introductionmentioning

confidence: 99%

Electrophoretically deposited polyaniline/ZnO nanoparticles for p–n heterostructure diodes

Ameen

Ansari

Yang

2009

Superlattices and Microstructures

101

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Section: Introductionmentioning

confidence: 99%

Electrophoretically deposited polyaniline/ZnO nanoparticles for p–n heterostructure diodes

Ameen

Ansari

Yang

2009

Superlattices and Microstructures

101

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“…The absorption band at 322 nm is due to the π-π* transition within the benzonoid segment. The second absorption band at 426 nm is attributed to the doping level of polyaniline (polaron-π* transition) and the absorption band at 750 nm is related to the formation of localized polaron at the backbone of the polymer (π-polaron transition) [19][20][21]. The absorption band positions and corresponding intensities have been reported in Table 2.…”

Section: Absorption Measurementsmentioning

confidence: 99%

Preparation and Characterization of Polyaniline/ZnO Composite Sensor

Mehto

Chauhan

et al. 2017

JNMR

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Polyaniline/ZnO nanocomposite thin films were prepared via an electrochemical synthesis route on ITO coated glass substrates. ZnO nanoparticles were uniformly dispersed in to the polyaniline matrix. Interaction between ZnO nanoparticle and polyaniline has been studied using X-ray diffraction (XRD), UV-Vis absorption spectroscopy, PL spectroscopy, AFM and I-V characteristics. The ammonia gas sensing behaviors of the polyaniline/ZnO composites were examined at room temperature. It was observed that the composite films showed good sensitivity, improved doping state and enhanced photoluminescence behaviour.Keywords: Polyaniline; ITO; AFM; UV-Vis absorption spectroscopy; Nanocomposites Ammonia plays very crucial role for human health. The way of natural process in animals, human and plants are responsible for production of ammonia in atmosphere. High concentrations of ammonia can cause difficulty in breathing, irritation to the eyes and skin and long term exposure of NH 3 leads to fatal [1]. There is a variety of applications of artificially synthesized ammonia in chemical industry, fertilizer factories, textile, food processing, bleaching products and refrigeration systems [2]. Therefore the human activity is a main reason for the presence of larger amount of ammonia in our atmosphere and is a necessity to detect its presence. Hence much research has been focused on the development of suitable gas sensitive materials to detect lower concentration of NH 3 with excellent performance [3].There are several studies concerning metal oxides like SnO 2 , WO 3 , ZnO, TiO 2 for NH 3 sensing applications but generally it requires a high working temperature [4,5]. There are also several conducting polymers like polythiophene, polypyrrole and polyaniline are used for detecting gases, however, the poor selectivity is the main disadvantages of pure inorganic and organic materials. New and interesting properties can be achieved by combining organic and inorganic materials [6]. Therefore conducting polymer/inorganic nanocomposites are explored as promising materials for sensing application, because of their good ability and compatibility to form chemical sensors with higher sensitivity at room temperature.Among the conducting polymers polyaniline based nanocomposites have many advantages. In literature, there are some reports available concerning the synthesis of polyaniline/ metal oxide nanocomposites in gas sensing applications. Huyen et al. [7] synthesize polyaniline/TiO 2 nanocomposites and studies the effect of TiO 2 on the sensing features. Lee et al. [8] described the effects of O 2 plasma treatment on NH3 sensing characteristics of multiwall carbon nanotube/polyaniline composite films. Wu et al. [9] reported the characterization and gas sensitivity study of polyaniline/SnO 2 hybrid material prepared by hydrothermal route. Deshpande et al. [10] reported tin oxide-intercalated polyaniline nanocomposite for ammonia gas sensing applications.We employed simple electrochemical technique to synthesize polyaniline/ZnO nanoco...

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“…For example polyaniline/cadmium sulfide nanocomposite was prepared by dissolving polyaniline in dimethyl formamide solution and adding dimethyl cadmium. Subsequently H 2 S was passed through the solution to have polyaniline/cadmium sulfide nanocomposite (Figure 4) [20].…”

Section: • Othersmentioning

confidence: 99%

Polymer Nanocomposites and Cr(VI) Removal from Water

Singh¹

2013

NSTOA

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Polyaniline–CdS nanocomposite from organometallic cadmium precursor

Cited by 67 publications

References 16 publications

Electrophoretically deposited polyaniline/ZnO nanoparticles for p–n heterostructure diodes

Electrophoretically deposited polyaniline/ZnO nanoparticles for p–n heterostructure diodes

Preparation and Characterization of Polyaniline/ZnO Composite Sensor

Polymer Nanocomposites and Cr(VI) Removal from Water

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