Microwave hydrothermal synthesized ZnIn-layered double hydroxides derived ZnIn-layered double oxides for enhanced methylene blue photodegradation

被引：59
作者：
Liu, Xiaoxiao [1 ]
Shao, Qian [1 ]
Zhang, Yufei [1 ]
Wang, Xiaojing [2 ,6 ]
Lin, Jing [3 ]
Gan, Yuanfa [4 ]
Dong, Mengyao [5 ,6 ]
Guo, Zhanhu [6 ]
机构：
[1] Shandong Univ Sci & Technol, Coll Chem & Environm Engn, Qingdao 266590, Peoples R China
[2] Jiangsu Univ Sci & Technol, Sch Mat Sci & Engn, Zhenjiang 212003, Jiangsu, Peoples R China
[3] Guangzhou Univ, Sch Chem & Chem Engn, Guangzhou 510006, Peoples R China
[4] Hualian Elect Co Ltd, Guizhou Zhenhua Grp, Kaili 556000, Guizhou, Peoples R China
[5] Zhengzhou Univ, Key Lab Mat Proc & Mold, Natl Engn Res Ctr Adv Polymer Proc Technol, Minist Educ, Zhengzhou, Peoples R China
[6] Univ Tennessee, Dept Chem & Biomol Engn, Integrated Composites Lab, Knoxville, TN 37996 USA
来源：
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2020年 / 592卷 / 592期
关键词：
ZnIn-layered double oxides; Photocatalytic activity; Photodegradation; Microwave hydrothermal method; MIXED-METAL-OXIDES; PHOTOCATALYTIC ACTIVITY; CARBON-FIBER; ELECTRONIC-PROPERTIES; ASSISTED SYNTHESIS; HIGH-PERFORMANCE; RHODAMINE-B; DEGRADATION; COMPOSITES; ZNO;
D O I：
10.1016/j.colsurfa.2020.124588
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：
The ZnIn-layered double hydroxides (ZnIn-LDHs) were synthesized by microwave hydrothermal method and used as the precursors to prepare the ZnIn-layered double oxides (ZnIn-LDOs) by the controllable calcination. The ZnIn-LDOs were aggregated by porous sheet materials, and the particle size was about 50 nm. The photocatalytic studies showed that the optimum molar ratio of Zn2+/In3+ was 3:1 and the optimum calcination temperature was 600 degrees C. The photocatalytic degradation of MB by the as-prepared ZnIn-LDOs photocatalysts reached an efficiency of 98 % after irradiation under the simulated sunlight for 120 min. Radial trapping experimental results indicated that the main reactive specie for MB removal in the degradation processes was h(+).
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页数：11
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