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Photocatalytic degradation of organic pollutants using green oil palm frond-derived carbon quantum dots/titanium dioxide as multifunctional photocatalysts under visible light radiation
文献摘要：
The present work suggested the use of waste oil palm frond as an alternative precursor for nitrogen-doped carbon quantum dots(NCQDs)and proposed a straightforward in-situ hydrothermal method for the preparation of NCQDs/TiO2 nanocomposites.The elemental composition,morphological,structural and optical characteristics of NCQDs/TiO2 nanocomposites have been comprehensively investigated.The successful grafting of NCQDs on TiO2 matrix was confirmed by the formation of Ti-O-C bond and the electronic coupling between theπ-states of NCQDs and the conduction band of TiO2.For the first time,the oil palm frond-derived NCQDs/TiO2 was adopted in the photodegradation of methylene blue(MB)under visible-light irradiation.As a result,the photocatalytic efficiency of NCQDs/TiO2 nanocompos-ites(86.16％)was 2.85 times higher than its counterpart TiO2(30.18％).The enhanced performance of nanocomposites was attributed to the pivotal roles of NCQDs serving as electron mediator and visible-light harvester.Besides,the optimal NCQDs loading was determined at 4 ml while the removal efficiency of NCQDs/TiO2-4 was the highest at a catalyst dosage of 1 g·L-1 under alkaline condition.This research work is important as it proposed a new insight to the preparation of biomass-based NCQDs/TiO2 using a facile synthetic method,which offers a green and sustainable water remediation technology.
文献关键词：
中图分类号：
[1] 数理科学和化学（O） / 力学（O3） / 振动理论（O32） / 非线性振动（O322）
[2] 经济（F） / 工业经济（F4） / 中国工业经济（F42）
[3] 医药、卫生（R） / 药学（R9） / 药理学（R96） / 实验药理学（R965）
作者姓名：
Zeng Wei Heng;Woon Chan Chong;Yean Ling Pang;Lan Ching Sim;Chai Hoon Koo
作者机构：
Lee Kong Chian Faculty of Engineering and Science,Universiti Tunku Abdul Rahman,Sungai Long Campus,Jalan Sungai Long,Cheras,43000 Kajang,Selangor,Malaysia;Centre for Photonics and Advanced Materials Research,Universiti Tunku Abdul Rahman,Sungai Long Campus,Jalan Sungai Long,Cheras,43000 Kajang,Selangor,Malaysia
文献出处：
中国化学工程学报（英文版）
引用格式：
[1]Zeng Wei Heng;Woon Chan Chong;Yean Ling Pang;Lan Ching Sim;Chai Hoon Koo-.Photocatalytic degradation of organic pollutants using green oil palm frond-derived carbon quantum dots/titanium dioxide as multifunctional photocatalysts under visible light radiation)[J].中国化学工程学报（英文版）,2022(11):21-34
A类：
frond,NCQDs
B类：
Photocatalytic,organic,pollutants,using,green,oil,palm,derived,carbon,quantum,dots,titanium,dioxide,multifunctional,photocatalysts,under,visible,light,present,work,suggested,use,waste,alternative,precursor,nitrogen,doped,proposed,straightforward,situ,hydrothermal,method,preparation,TiO2,nanocomposites,elemental,composition,morphological,structural,optical,characteristics,have,been,comprehensively,investigated,successful,grafting,matrix,confirmed,by,formation,bond,electronic,coupling,between,states,conduction,band,For,first,adopted,photodegradation,methylene,blue,MB,irradiation,result,photocatalytic,efficiency,times,higher,than,its,counterpart,enhanced,performance,attributed,pivotal,roles,serving,mediator,harvester,Besides,optimal,loading,determined,ml,while,removal,highest,dosage,alkaline,condition,This,research,important,new,insight,biomass,facile,synthetic,which,offers,sustainable,water,remediation,technology
AB值：
0.522843
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