基于盐分隔α-环糊精策略的碳纳米棒构建  

Construction of carbon nanorods based on salt-separated α-cyclodextrin strategy

作　　者：邢野 王亚南 李海朝 Xing Ye;Wang Yanan;Li Haichao(Key Lab of Applied Physical Chemistry of Qinghai Province,Qinghai Minzu University,Xining 810007;Institute of Resource Chemistry of Qinghai,Qinghai Minzu University,Xining 810007)

机构地区：[1]青海省应用物理化学重点实验室,青海民族大学化学化工学院,西宁810007 [2]青海资源化学研究所,青海民族大学化学化工学院,西宁810007

出　　处：《化工新型材料》2025年第3期92-95,106,共5页New Chemical Materials

基　　金：青海省重点研发与转化计划项目(2022-QY-210);青海民族大学研究生创新项目(12M2023005)。

摘　　要：以可再生的α-环糊精(α-CD)为原料,利用α-CD在溶液中自组装的性质,采用一种巧妙的盐分割策略,一步合成了碳纳米棒(CNRs)。该合成与传统的模板法不同之处在于,它的特点是通过盐结晶进行分隔和保护,碳化时不需要通入保护气体,过滤后盐可以回收。因此,这种方法非常具有成本效益并且不会造成环境污染。此外,合成的CNRs的直径和长度可以根据需要,通过简单地调节α-CD浓度控制聚集体大小,从而实现CNRs长度在600~1500nm范围内可调节,直径在50~80nm范围内可调节,最大长径比可达18.75。为碳纳米材料的绿色制备提供了一种简单的新思路。Herein,we reported a one-step synthesis of carbon nanorods(CNRs) from renewable α-Cyclodextrin(α-CD) using a novel salt segregation strategy that exploits the self-assembly nature of α-CD in solution.The synthesis differed from the traditional template method in that it was characterized by segregation and protection by salt crystallization,the carbonization did not need the passage of protective gas,and the salt could be recovered after filtration.Therefore,this method was very cost-effective and did not cause environmental pollution.In addition,the diameters and lengths of the synthesized CNRs could be controlled by simply adjusting the α-CD concentration to control the aggregate sizes as needed,thus realizing CNRs with adjustable lengths in the range of 600~1500nm and adjustable diameters in the range of 50~80nm,with a maximum length-to-diameter ratio of up to 18.75.This work provided a simple new approach for the green preparation of carbon nanomaterials.

关 键 词：碳纳米棒 盐分隔 自组装 Α-环糊精 

分 类 号：TQ127.11[化学工程—无机化工] TB383.1[一般工业技术—材料科学与工程]