V_(2)O_(5)/SnO_(2-x)杂化纳米带用于高效可见光驱动光催化剂  

The V_(2)O_(5)/SnO_(2-x)Hybrid Nanoribbons forEfficient Visible-Light-Driven Photocatalysts

作　　者：张林飞 刘称意[1] 何宁发 胡勇 郭长帅 王雷 陈磊[1] 何心如 钟声亮 ZHANG Linfei;LIU Chenyi;HE Ningfa;HU Yong;GUO Changshuai;WANG Lei;CHEN Lei;HE Xinru;ZHONG Shengliang(School of Automotive Engineering,Guangdong Polytechnic of Science and Technology,Zhuhai Guangdong 519090,China;College of Chemical Engineering,Jiangxi Normal Univesity,Nanchang Jiangxi 330022,China)

机构地区：[1]广东科学技术职业学院汽车工程学院,广东珠海519090 [2]江西师范大学化学工程学院,江西南昌330022

出　　处：《江西师范大学学报(自然科学版)》2025年第1期73-79,共7页Journal of Jiangxi Normal University(Natural Science Edition)

基　　金：国家自然科学基金(22065016);广州市科技局基础与应用基础研究课题(202201010817);广东省教育厅普通高等学校特色创新课题(2021KTSCX215,2021KTSCX216);广东科学技术职业学院校级基金培育课题(XJPY202101)资助项目。

摘　　要：该文报道了在温和条件下通过Sn^(4+)与锡粉的归中反应,在葡萄糖的辅助下简单合成Sn^(2+)自掺杂SnO_(2-x)纳米晶体锚定在V_(2)O_(5)纳米带上;研究了自掺杂对杂化纳米带的组分比、带隙改性和光催化性能的影响.与化学计量的SnO_(2)纳米晶体和V_(2)O_(5)纳米带的单组分相比,该杂化材料在可见光照射和稳定循环条件下表现出显著的有机污染物降解能力.Sn^(2+)自掺杂SnO_(2-x)具有优异的光催化活性,这可归因于将Sn^(2+)掺入晶格基质和伴随的氧空位,导致带隙的显著变窄和可见光吸收能力的增强.SnO_(2-x)纳米晶体均匀分布在V_(2)O_(5)纳米带上,有效地增加了活性接触位点.这种新型杂化材料在水处理、染料污染物降解、环境清洁等方面有着广阔的应用前景.The simple synthesis of Sn^(2+)self-doped SnO_(2-x)nanocrystals anchored on V_(2)O_(5)nanobelts hybrid materials under mild conditions is reported through the comproportionation reaction of Sn^(4+)with tin powder in this paper,assisted by glucose.The self-doped effects on component ratio,band gap modification and the photocatalytic performance of V_(2)O_(5)/SnO_(2-x)are systematically investigated.Compared to the single component of stoichiometric SnO_(2)nanocrystals and V_(2)O_(5)nanobelts,the hybrid materials exhibit remarkable degradation ability of organic pollutants under visible light irradiation and stable cycling.The superior photocatalytic activity of Sn^(2+)self doped SnO_(2-x)can be attributed to the incorporation of Sn^(2+)into the lattice matrix and accompanying oxygen vacancies,which can lead to a significant narrowing of the band gap and an enhancement of visible light absorption ability.Especially,SnO_(2-x)nanocrystals are uniformly distributed on the V_(2)O_(5)nanobelts,effectively increasing the contact sites.This novel hybrid material may have promising applications in water treatment,degradation of dye pollutants and environmental clea-ning,etc.

关 键 词：非化学计量 杂化纳米带 催化剂 光降解 

分 类 号：O641.12[理学—物理化学]