高等学校化学学报
高等學校化學學報
고등학교화학학보
Chemical Journal of Chinese Universities
2015年
10期
1888-1893
,共6页
朱刚兵%裴元鹏%陈煜轩%易银辉%孙恒%吴向阳
硃剛兵%裴元鵬%陳煜軒%易銀輝%孫恆%吳嚮暘
주강병%배원붕%진욱헌%역은휘%손항%오향양
石墨烯纳米带%甲萘胺%电化学传感%碳纳米管%核壳结构
石墨烯納米帶%甲萘胺%電化學傳感%碳納米管%覈殼結構
석묵희납미대%갑내알%전화학전감%탄납미관%핵각결구
Graphene nanoribbons%1-Naphthylamine%Electrochemical sensing%Carbon nanotubes%Core-shell heterostructure
通过部分氧化剥离多壁碳纳米管(MWCNTs),制备了氧化石墨烯纳米带(GONRs)包覆的 MWCNTs 核壳结构复合物(MWCNTs@ GONRs);采用扫描电子显微镜、透射电子显微镜、傅里叶变换红外光谱仪、热重分析仪和拉曼光谱仪等对 MWCNTs@ GONRs 的形貌和结构进行了表征;并将该复合物修饰玻碳电极(GCE)应用于甲萘胺(1-NA)的电化学传感研究.由于 MWCNTs 和 GONRs 的协同作用(如 MWCNTs 可提供快速的电子传递通道, GONRs 表面带负电含氧官能团提高其对目标分子1-NA 的富集量), MWCNTs@ GONRs/ GCE可实现对1-NA 的高灵敏检测,线性范围为8.0~400.0 nmol/ L,检出限为2.5 nmol/ L.
通過部分氧化剝離多壁碳納米管(MWCNTs),製備瞭氧化石墨烯納米帶(GONRs)包覆的 MWCNTs 覈殼結構複閤物(MWCNTs@ GONRs);採用掃描電子顯微鏡、透射電子顯微鏡、傅裏葉變換紅外光譜儀、熱重分析儀和拉曼光譜儀等對 MWCNTs@ GONRs 的形貌和結構進行瞭錶徵;併將該複閤物脩飾玻碳電極(GCE)應用于甲萘胺(1-NA)的電化學傳感研究.由于 MWCNTs 和 GONRs 的協同作用(如 MWCNTs 可提供快速的電子傳遞通道, GONRs 錶麵帶負電含氧官能糰提高其對目標分子1-NA 的富集量), MWCNTs@ GONRs/ GCE可實現對1-NA 的高靈敏檢測,線性範圍為8.0~400.0 nmol/ L,檢齣限為2.5 nmol/ L.
통과부분양화박리다벽탄납미관(MWCNTs),제비료양화석묵희납미대(GONRs)포복적 MWCNTs 핵각결구복합물(MWCNTs@ GONRs);채용소묘전자현미경、투사전자현미경、부리협변환홍외광보의、열중분석의화랍만광보의등대 MWCNTs@ GONRs 적형모화결구진행료표정;병장해복합물수식파탄전겁(GCE)응용우갑내알(1-NA)적전화학전감연구.유우 MWCNTs 화 GONRs 적협동작용(여 MWCNTs 가제공쾌속적전자전체통도, GONRs 표면대부전함양관능단제고기대목표분자1-NA 적부집량), MWCNTs@ GONRs/ GCE가실현대1-NA 적고령민검측,선성범위위8.0~400.0 nmol/ L,검출한위2.5 nmol/ L.
A novel core-shell heterostructure with multiwalled carbon nanotubes(MWCNTs) as the core and graphene oxide nanoribbons as the shell(MWCNTs@ GONRs) was prepared from longitudinal partially unzip-ping of MWCNTs and applied in electrochemical sensing of 1-naphthylamine(1-NA). Scanning electron mi-croscopy, transmission electron microscopy, Fourier transform infrared spectroscopy and thermogravimetric analysis were used to characterize the morphology and structures of MWCNTs@ GONRs. Owing to the synergis-tic effects from MWCNTs and GONRs, the oxidation peak current of 1-NA at the MWCNTs@ GONRs modified glassy carbon electrode( GCE) are much higher than those at the MWCNTs/ GCE and bare GCE, and the MWCNTs@ GONRs/ GCE has a linear response range of 8. 0—400. 0 nmol/ L with a detection limit of 2. 5 nmol/ L for 1-NA determination.