Nano Pub Date : 2024-02-01 DOI: 10.1142/s1793292024500012

Dulal Chandra Patra, Anabadya Dash, Nitumoni Deka, S. P. Mondal

引用次数: 0

Two-Step Electrodeposition of Polypyrrole Nanospheres and Pt Nanostars on Ni Foam for Electrochemical Detection of Ammonia–Nitrogen 在镍泡沫上两步电沉积聚吡咯纳米球和铂纳米柱，用于电化学检测氨氮

Nano Pub Date : 2024-02-01 DOI: 10.1142/s1793292024500024

Liang Zhang, Sizhe Liu, Xinyao Liu, Yue Han, Jiali Gu, Xinyue Wang

{"title":"Two-Step Electrodeposition of Polypyrrole Nanospheres and Pt Nanostars on Ni Foam for Electrochemical Detection of Ammonia–Nitrogen","authors":"Liang Zhang, Sizhe Liu, Xinyao Liu, Yue Han, Jiali Gu, Xinyue Wang","doi":"10.1142/s1793292024500024","DOIUrl":"https://doi.org/10.1142/s1793292024500024","url":null,"abstract":"Designing and developing sensitive electrochemical sensors have always been paid attention to achieve the accurate detection of ammonia–nitrogen in the aqueous environment. Herein, a two-step electrodeposition route was used to achieve a Ni foam-supported polypyrrole nanospheres and Pt nanostars sensing electrode (Pt-PPy-Ni foam) for ammonia–nitrogen detection. After controlling the deposition time of Pt nanostars, the optimal Pt-PPy-Ni foam electrode exhibited greater electrocatalytic ability for ammonia oxidation reaction with a current density of 41.73 mA cm[Formula: see text] than that of Pt-Ni foam. This enhanced electrocatalytic ability could be attributed to the excellent adsorption of polypyrrole nanospheres for ammonia and the great catalytic activity of Pt nanostars for the ammonia oxidation reaction. This Pt-PPy-Ni foam electrode showed great detection performances with a sensitivity of 0.013 mA [Formula: see text]M[Formula: see text], and a detection limit of 8.72 [Formula: see text]M. Moreover, accepted results were obtained for the recovery measurements of lake and seawater samples with recoveries from 101.05% to 102.27% and 90.73% to 91.70%. In addition, Pt-PPy-Ni foam sensor exhibited good anti-interference ability with low current charges, reproducibility (relative standard deviation = 1.58%) and stability (relative standard deviation = 6.11%), showing a great application potential.","PeriodicalId":509426,"journal":{"name":"Nano","volume":"55 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139874060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Gold Nanoparticle-Sensitized Zinc Oxide Nanorods-Based Nitric Oxide Gas Sensors with High Sensitivity, Selectivity and Low Detection Limit 高灵敏度、高选择性和低检测限的金纳米颗粒敏化氧化锌纳米棒一氧化氮气体传感器

Nano Pub Date : 2024-02-01 DOI: 10.1142/s1793292024500012

Dulal Chandra Patra, Anabadya Dash, Nitumoni Deka, S. P. Mondal

引用次数: 0

Two-Step Electrodeposition of Polypyrrole Nanospheres and Pt Nanostars on Ni Foam for Electrochemical Detection of Ammonia–Nitrogen 在镍泡沫上两步电沉积聚吡咯纳米球和铂纳米柱，用于电化学检测氨氮

Nano Pub Date : 2024-02-01 DOI: 10.1142/s1793292024500024

Liang Zhang, Sizhe Liu, Xinyao Liu, Yue Han, Jiali Gu, Xinyue Wang

{"title":"Two-Step Electrodeposition of Polypyrrole Nanospheres and Pt Nanostars on Ni Foam for Electrochemical Detection of Ammonia–Nitrogen","authors":"Liang Zhang, Sizhe Liu, Xinyao Liu, Yue Han, Jiali Gu, Xinyue Wang","doi":"10.1142/s1793292024500024","DOIUrl":"https://doi.org/10.1142/s1793292024500024","url":null,"abstract":"Designing and developing sensitive electrochemical sensors have always been paid attention to achieve the accurate detection of ammonia–nitrogen in the aqueous environment. Herein, a two-step electrodeposition route was used to achieve a Ni foam-supported polypyrrole nanospheres and Pt nanostars sensing electrode (Pt-PPy-Ni foam) for ammonia–nitrogen detection. After controlling the deposition time of Pt nanostars, the optimal Pt-PPy-Ni foam electrode exhibited greater electrocatalytic ability for ammonia oxidation reaction with a current density of 41.73 mA cm[Formula: see text] than that of Pt-Ni foam. This enhanced electrocatalytic ability could be attributed to the excellent adsorption of polypyrrole nanospheres for ammonia and the great catalytic activity of Pt nanostars for the ammonia oxidation reaction. This Pt-PPy-Ni foam electrode showed great detection performances with a sensitivity of 0.013 mA [Formula: see text]M[Formula: see text], and a detection limit of 8.72 [Formula: see text]M. Moreover, accepted results were obtained for the recovery measurements of lake and seawater samples with recoveries from 101.05% to 102.27% and 90.73% to 91.70%. In addition, Pt-PPy-Ni foam sensor exhibited good anti-interference ability with low current charges, reproducibility (relative standard deviation = 1.58%) and stability (relative standard deviation = 6.11%), showing a great application potential.","PeriodicalId":509426,"journal":{"name":"Nano","volume":"42 17","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139814066","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Polyrhodanine functionalized magnetic activated carbon for efficient removal of lead ions and malachite green from wastewater 聚罗丹宁功能化磁性活性炭用于高效去除废水中的铅离子和孔雀石绿

Nano Pub Date : 2024-01-26 DOI: 10.1142/s179329202450005x

Wei-Wei Zhang, Xin Ma, Zhao Yang, Zongli Ren, Xuan Yang, Zhongwei Zhao

引用次数: 0

Carbon Quantum Dots Carrying a Antibiotics for Treat Dental Implant Bacterial Infections Following Photothermal Therapy 携带抗生素的碳量子点用于治疗光热疗法后的牙种植体细菌感染

Nano Pub Date : 2024-01-19 DOI: 10.1142/s1793292024500048

Yong Jiang, Zhengwei Hua, Qingli Geng, Ning Li

引用次数: 0

High efficiency ultra-thin normal-incidence Ge-on-Si photodetector based on optical metasurface 基于光学元表面的高效超薄正入射硅基 Ge-on-Si 光电探测器

Nano Pub Date : 2024-01-12 DOI: 10.1142/s1793292024500036

Chen Zhang, Weixi Lin, Zhengtong Liu, Lei Wang, Fuyong Yue, Zhenmin Chen, Chunyang Ma, Zhixue He