Green technique of visible light active titanium dioxide nanoparticles using starch for the degradation of organic pollutant

被引:1
作者
Abu Hasim, Nornadia Nazuha [1 ]
Idris, Nurul Hidayah Mohamad [1 ]
Hamzah, Hairul Hisham [2 ]
Urstoeger, Georg [3 ]
Schrode, Benedikt [3 ]
Lee, Hooi Ling [1 ]
机构
[1] Univ Sains Malaysia, Sch Chem Sci, Nanomat Res Grp, George Town 11800, Malaysia
[2] Univ Sains Malaysia, Sch Chem Sci, George Town 11800, Malaysia
[3] Anton Paar GmbH, Anton Paar Str 20, A-8054 Graz, Austria
关键词
Titanium dioxide nanoparticles; Visible light; Starch; Green synthesis; Wastewater treatment; NEUTRAL RED-DYE; PHOTOCATALYTIC DEGRADATION; TIO2; NANOPARTICLES; WATER; ANATASE; MINERALIZATION; PRINCIPLES; BROOKITE;
D O I
10.5004/dwt.2023.29346
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
The design of titanium dioxide nanoparticles (TiO2 NPs) is crucial. Therefore, the visible light-activated TiO2 NPs were proposed using a sol-gel green method with reduced optical bandgap energy from 3.20 eV of pure anatase TiO2 into 3.00 eV. The obtained electrochemical bandgap (2.81 eV) which was analyzed by cyclic voltammetry revealed an insignificant difference compared to the optical bandgap. X-ray diffraction analysis verified TiO2 NPs composed of an anatase-brookite phase with a crystallite size of 8 nm. The particle size of TiO2 NPs was confirmed by high-resolution transmission electron microscopy analysis (11.63 +/- 1.47 nm). Due to the high photocatalytic performance of the mixed-phase TiO2 NPs, the optimum concentration (6 ppm) of neutral red (NR) dye was completely degraded within 30 min under visible light. Photoluminescence analysis revealed the improved electron-hole separation of the synthesized TiO2 NPs. center dot O2- acted as the predominant role of reactive oxygen species in the removal of NR dye. The degradation kinetics of NR obeyed the first-order kinetic and the adsorption data were fitted with the Langmuir isotherm model. TiO2 NPs maintained over 90% of its initial photocatalytic efficiency after five cycles. Thus, this study suggests that the TiO2 NPs have good potential as an effective photocatalyst in wastewater treatment.
引用
收藏
页码:46 / 58
页数:13
相关论文
共 53 条
[41]   Silver-ion-mediated reactive oxygen species generation affecting bactericidal activity [J].
Park, Hee-Jin ;
Kim, Jee Yeon ;
Kim, Jaeeun ;
Lee, Joon-Hee ;
Hahn, Ji-Sook ;
Gu, Man Bock ;
Yoon, Jeyong .
WATER RESEARCH, 2009, 43 (04) :1027-1032
[42]  
Plesingerova B, 2007, CERAM-SILIKATY, V51, P15
[43]   Honeycombed Au@C-TiO2-x catalysts for enhanced photocatalytic mineralization of Acid red 3R under visible light [J].
Qian, Hengli ;
Hou, Qidong ;
Duan, Erhong ;
Niu, Jianrui ;
Nie, Yifan ;
Bai, Chuanyunlong ;
Bai, Xinyu ;
Ju, Meiting .
JOURNAL OF HAZARDOUS MATERIALS, 2020, 391
[44]   Ultrasonic-assisted sol-gel synthesis of TiO2 nanostructures: Influence of synthesis parameters on morphology, crystallinity, and photocatalytic performance [J].
Quintero, Y. ;
Mosquera, E. ;
Diosa, J. ;
Garcia, A. .
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, 2020, 94 (02) :477-485
[45]   Fundamental principles and application of heterogeneous photocatalytic degradation of dyes in solution [J].
Rauf, M. A. ;
Ashraf, S. Salman .
CHEMICAL ENGINEERING JOURNAL, 2009, 151 (1-3) :10-18
[46]   Enrolling reactive oxygen species in photon-to-chemical energy conversion: fundamentals, technological advances, and applications [J].
Rettig, Irving D. ;
McCormick, Theresa M. .
ADVANCES IN PHYSICS-X, 2021, 6 (01)
[47]   Photocatalytic degradation of Reactive Blue 21 dye using ZnO nanoparticles: experiment, modelling, and sensitivity analysis [J].
Rodrigues, Jorge ;
Hatami, Tahmasb ;
Rosa, Jorge Marcos ;
Tambourgi, Elias Basile .
ENVIRONMENTAL TECHNOLOGY, 2021, 42 (23) :3675-3687
[48]   Mineralization and toxicity reduction of textile dye neutral red in aqueous phase using BiOCl photocatalysis [J].
Sarwan, Bhawna ;
Pare, Brijesh ;
Acharya, A. D. ;
Jonnalagadda, S. B. .
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY, 2012, 116 :48-55
[49]  
Siti LN., 2019, AM J NANOMATER, V7, P39, DOI [10.12691/ajn-7-1-5, DOI 10.12691/AJN-7-1-5]
[50]  
Stephen L., 2020, ASSORTED DIMENSIONAL, DOI 10.5772/intechopen.92056