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首页> 外文会议>Meeting of the Electrochemical Society;International Meeting on Chemical Sensors >Synthesis and Characterization of Reduced Graphene Oxide Supported Ag/PANI Nanocomposite As Electrochemical Sensor for the Detection of Selected Toxic Heavy Metals
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Synthesis and Characterization of Reduced Graphene Oxide Supported Ag/PANI Nanocomposite As Electrochemical Sensor for the Detection of Selected Toxic Heavy Metals

机译：将石墨烯氧化物的合成与表征负载Ag / Pani纳米复合材料作为电化学传感器检测选定的毒性重金属

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Reduced graphene oxidesupported Ag/PANI nanocomposite electrochemical sensor was synthesized through electrochemical methods from electrochemical polymerization of 0.2M aniline monomer in 1M HClandelectrodeposition of silver nanoparticles from AgNO_3on a reduced graphene oxide modified bare electrode. The as synthesized (Ag/PANI/RGO) nanocomposites modified electrodewas further characterized by Cyclic Voltammetry. The results show that Ag/PANI/RGO nanocomposite was the highest electroactive substrate than PANI and PANI/RGO. This isdue to reduced graphene oxide and synergetic effects as well as electrocatalytic properties of silver nanoparticles. Forcomparing and as well as forspectroscopic characterization; PANI, PANI/RGO and Ag/PANI/RGO nanocomposites were synthesized by chemical precipitation methods using APS, (NH_4)_2SO_4 as an oxidant and characterized by CV, FTIR, SEM, XRD and UV-Vis and the results showed that a comparable electrochemical properties, optical and structural properties and uniform distribution of silver nanoparticles on the surface of PANI/RGO were observed on SEM micrographs. Fast electron transfer properties werecalculated from standard rate constantfor electrochemically and chemicallysynthesized (Ag/PAN/RGO) nanocomposite sensor werek°of 71.3×10~(-3)s~(-1) and 63.9×10~(-3)s~(-1), respectively. This (Ag/PANI/RGO) nanocomposite electrochemical sensor was carefully tested with the help of anodic stripping voltammetric process as results; linear regression coefficient (R~2) of 0.9990 and 0.9977 for Pb~(2+) and Cd~(2+), respectively, were obtained. The results have shown that for surface water, specifically for Cd has higher valuethan the WHO (2008) recommended maximum admissible limits. This is an indication of pollution hazards and weak drinking water treatment practices in the areas, which in turn have important human health implications. Therefore, the government and other responsible authorities to take appropriate corrective measures.
机译：通过从AgNO_3ON的银纳米粒子的1M Hcland电池中的电化学聚合从AgNO_3ON从AgNO_3ON从AgNO_3ON从AgNO_3ON的电化学沉积的电化学聚合，通过电化学方法合成了石墨烯氧化物的Ag / Pani纳米复合电影学传感器。作为合成的（Ag / PANI / RGO）纳米复合材料改性电极，其特征在于循环伏安。结果表明，AG / PANI / RGO纳米复合材料是比PANI和PANI / RGO最高的电活性底物。这项是石墨烯氧化物和协同效应以及银纳米颗粒的电催化性质。福利申请和以及光谱表征;通过使用APS（NH_4）_2SO_4作为氧化剂来合成PANI，PANI / RGO和AG / PANI / RGO纳米复合材料，其特征在于CV，FTIR，SEM，XRD和UV-Vis，结果表明了可相当的电化学在SEM显微照片上观察到Pani / Rgo表面上银纳米粒子的性质，光学和结构性质和均匀分布。从标准速率恒定的快速电子转移性能从电化学和化学合酶化（AG / PAN / RGO）纳米复合体传感器均为71.3×10〜（3）S〜（-1）和63.9×10〜（3）S〜（ -1）分别。伴随阳极剥离伏安法作为结果，仔细测试该（AG / PANI / RGO）纳米复合电化学传感器;获得了0.9990和0.9977的线性回归系数（R〜2）分别用于Pb〜（2+）和Cd〜（2+）。结果表明，对于地表水，专门用于CD具有较高的ValueShan（2008）的推荐最大可允许限制。这是该地区污染危害和弱饮水处理实践的指示，反过来又具有重要的人类健康影响。因此，政府和其他负责任的当局采取适当的纠正措施。

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