Preparation and characterization of a novel and recyclable InVO4/ZnFe2O4 composite for methylene blue removal by adsorption and visible-light photocatalytic degradation

被引:65
作者
Wang, Zijin [1 ]
Wang, Jun [1 ]
Pan, Yining [1 ]
Liu, Fangyang [1 ]
Lai, Yanqing [1 ]
Li, Jie [1 ]
Jiang, Liangxing [1 ]
机构
[1] Cent South Univ, Sch Met & Environm, Changsha 410083, Hunan, Peoples R China
基金
中国国家自然科学基金; 中国博士后科学基金; 湖南省自然科学基金;
关键词
ZnFe2O4; InVO4; Adsorption/photocatalysis synergy; 3D structure; GRAPHITIC CARBON NITRIDE; HYDROTHERMAL SYNTHESIS; FACILE SYNTHESIS; QUANTUM DOTS; RHODAMINE-B; Z-SCHEME; PERFORMANCE; MICROSPHERES; STABILITY; INVO4;
D O I
10.1016/j.apsusc.2019.144006
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A novel magnetic InVO4/ZnFe2O4 composite with the synergistic effect of adsorption and photocatalytic activity has been prepared using a hydrothermal method and characterized by a series of analytical techniques. The addition of ZnFe(2)O(4 )not only improves the adsorption capability in the case of more active sites and positive zeta potential but also broadens the absorption range and promotes visible light harvesting. The optimum activity was found at a mole ratio of ZnFe2O4:InVO4 = 3:1 (IZ-4). The removal rate for methylene blue (MB) under the synergistic effect of adsorption and photocatalytic reaches 88.74%, which is 6.87 times and 14.11 times that of the pure InVO4 and ZnFe2O4, respectively. Furthermore, the adsorption kinetics and isotherm investigations indicate that the adsorption process followed the pseudo-second-order kinetic and Langmuir isotherm models. The maximum adsorption capacity of MB as 97.12 mg/g is achieved on the IZ-4 composite, which is better than the adsorbents reported previously. A type-II heterojunction between InVO4 and ZnFe2O4 based on the results of Mott-Schottky (M-S) plots is proposed to facilitate the charge transfer and improve the photocatalytic activity. In terms of the experimental results of N-2 adsorption/desorption, zeta potential and photoluminescence emission spectra, a possible mechanism of MB removal is discussed. The InVO4/ZnFe2O4 composite with a synergistic effect of adsorption and photocatalytic degradation increases the active adsorption sites and promotes the separation of photogenerated electron and holes, thereby improving the MB removal performance.
引用
收藏
页数:9
相关论文
共 72 条
[21]   Hydrothermal Synthesis g-C3N4/Nano-InVO4 Nanocomposites and Enhanced Photocatalytic Activity for Hydrogen Production under Visible Light Irradiation [J].
Hu, Bo ;
Cai, Fanpeng ;
Chen, Tianjun ;
Fan, Mingshan ;
Song, Chengjie ;
Yan, Xu ;
Shi, Weidong .
ACS APPLIED MATERIALS & INTERFACES, 2015, 7 (33) :18247-18256
[22]   Graphene-Like MoS2/Graphene Composites: Cationic Surfactant-Assisted Hydrothermal Synthesis and Electrochemical Reversible Storage of Lithium [J].
Huang, Guochuang ;
Chen, Tao ;
Chen, Weixiang ;
Wang, Zhen ;
Chang, Kun ;
Ma, Lin ;
Huang, Feihe ;
Chen, Dongyun ;
Lee, Jim Yang .
SMALL, 2013, 9 (21) :3693-3703
[23]   Switching charge transfer of C3N4/W18O49 from type-II to Z-scheme by interfacial band bending for highly efficient photocatalytic hydrogen evolution [J].
Huang, Zhen-Feng ;
Song, Jiajia ;
Wang, Xin ;
Pan, Lun ;
Li, Ke ;
Zhang, Xiangwen ;
Wang, Li ;
Zou, Ji-Jun .
NANO ENERGY, 2017, 40 :308-316
[24]   Synergetic promotion on photoactivity and stability of W18O49/TiO2 hybrid [J].
Huang, Zhen-Feng ;
Zou, Ji-Jun ;
Pan, Lun ;
Wang, Songbo ;
Zhang, Xiangwen ;
Wang, Li .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2014, 147 :167-174
[25]   Surface oxygen vacancy assisted electron transfer and shuttling for enhanced photocatalytic activity of a Z-scheme CeO2-Agl nanocomposite [J].
Islam, M. Jahurul ;
Reddy, D. Amaranatha ;
Choi, Jiha ;
Kim, Tae Kyu .
RSC ADVANCES, 2016, 6 (23) :19341-19350
[26]   Facile aqueous synthesis of β-AgI nanoplates as efficient visible-light-responsive photocatalyst [J].
Jiang, Wen ;
An, Changhua ;
Liu, Junxue ;
Wang, Shutao ;
Zhao, Lianming ;
Guo, Wenyue ;
Liu, Jinxiang .
DALTON TRANSACTIONS, 2014, 43 (01) :300-305
[27]   Hydrothermal synthesis, characterizations and photoluminescence study of single crystalline hexagonal ZnO nanorods with three dimensional flowerlike microstructures [J].
Kale, Rohidas B. ;
Hsu, Yung-Jung ;
Lin, Yi-Feng ;
Lu, Shih-Yuan .
SUPERLATTICES AND MICROSTRUCTURES, 2014, 69 :239-252
[28]   Modification of BiOI Microplates with CdS QDs for Enhancing Stability, Optical Property, Electronic Behavior toward Rhodamine B Decolorization, and Photocatalytic Hydrogen Evolution [J].
Kandi, Debasmita ;
Martha, Satyabadi ;
Thirumurugan, Arun ;
Parida, K. M. .
JOURNAL OF PHYSICAL CHEMISTRY C, 2017, 121 (09) :4834-4849
[29]   Improving Stability and Photoelectrochemical Performance of BiVO4 Photoanodes in Basic Media by Adding a ZnFe2O4 Layer [J].
Kim, Tae Woo ;
Choi, Kyoung-Shin .
JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 2016, 7 (03) :447-451
[30]   Pt coupled ZnFe2O4 nanocrystals as a breakthrough photocatalyst for Fenton-like processes - photodegradation treatments from hours to seconds [J].
Lee, Kuan-Ting ;
Chuah, Xui-Fang ;
Cheng, Yu-Chieh ;
Lu, Shih-Yuan .
JOURNAL OF MATERIALS CHEMISTRY A, 2015, 3 (36) :18578-18585