Integration of nanosized ZIF-8 particles onto mesoporous TiO<sub>2</sub> nanobeads for enhanced photocatalytic activity

Qi Liu; Beibei Zhou; Miao Xu; Guobing Mao

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Integration of nanosized ZIF-8 particles onto mesoporous TiO₂ nanobeads for enhanced photocatalytic activity

机译：纳米ZIF-8颗粒在介孔TiO _{2 纳米珠上的集成以增强光催化活性}

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Hexavalent chromium, or Cr(VI), is a highly toxic contaminant in industrial wastewater that needs to be treated before being released. A Zeolitic Imidazolate Framework ZIF-8 was assembled on the surface of mesoporous TiO₂ beads to achieve a TiO₂/ZIF-8 heterostructure for photocatalytic reduction of Cr(VI). The TiO₂/ZIF-8 nanobeads exhibited remarkable photocatalytic activity of Cr(VI) reduction relative to that of pristine TiO₂ nanobeads attributed to the strong Cr(VI) adsorbing properties of ZIF-8 and improved charge transfer efficiency of TiO₂/ZIF-8. This work illustrates a strategy for enhanced photocatalysis by modifying the metal oxide catalyst with high surface area Zeolitic Imidazolate Framework to improve adsorption and charge transfer efficiency.

机译：六价铬或Cr（ VI ）是工业废水中的一种剧毒污染物，需要在释放前进行处理。在介孔TiO _{2 珠的表面上组装沸石咪唑酸酯骨架ZIF-8，以获得TiO _{2 / ZIF-8异质结构用于光催化还原Cr（ VI ）。 TiO _{2 / ZIF-8纳米珠相对于原始TiO _{表现出显着的Cr（ VI ）还原光催化活性。 > 2 纳米珠归因于ZIF-8的强Cr（ VI ）吸附性能和TiO _{2 的提高的电荷转移效率 / ZIF-8。这项工作说明了通过用高表面积的沸石咪唑盐骨架改性金属氧化物催化剂以提高吸附和电荷转移效率来增强光催化的策略。}}}}}

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《RSC Advances》 |2017年第13期|共7页
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Qi Liu; Beibei Zhou; Miao Xu; Guobing Mao;
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中图分类化学;
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1. Liquid phase deposition of flower-like TiO2 microspheres decorated by ZIF-8 nanoparticles with enhanced photocatalytic activity [J] . Zhong Wan-Ling, Li Chao, Liu Xiao-Ming, Microporous and mesoporous materials: The offical journal of the International Zeolite Association . 2020,第1期

机译：由ZIF-8纳米颗粒装饰的花样TiO2微球的液相沉积，具有增强的光催化活性
2. Enhancement of the Photocatalytic Reactivity of Unique Rectangular Column-structured TiO2 Photocatalysts by Incorporating Nanosized Metal Particles [J] . Takeshi Kudo, Yuko Kudo, Akira Hasegawa Chemistry Letters . 2006,第12期

机译：通过掺入纳米金属颗粒增强独特的矩形柱状TiO2光催化剂的光催化反应活性
3. Nanosized TiO2 particles decorated on SiO2 spheres (TiO2/SiO2): synthesis and photocatalytic activities [J] . Uraiwan Sirimahachai, Nicholas Ndiege, Ramesh Chandrasekharan Journal of Sol-Gel Science and Technology . 2010,第1期

机译：在SiO2球上装饰的纳米TiO2颗粒（TiO2 / SiO2）：合成和光催化活性
4. Preparation of Three-Dimensionally Interconnected Meso/Mesoporous Ho~(3+) Doped TiO_2 Nanoparticles with Enhanced Photocatalytic Activity [C] . Wei Yin ICAMMP 2012 . 2013

机译：具有增强的光催化活性的三维互连的掺杂TiO_2纳米粒子的三维互连的偏孔/介孔HO〜（3+）的制备
5. Photochemical Synthesis and Photocatalytic Activity of Ag-TiO 2-CNT Nanoparticle Composites for Possible Antibacterial Agent. [D] . Littlejohn, Ginaya Shadai. 2013

机译：Ag-TiO 2-CNT纳米粒子复合材料的光化学合成及其对可能的抗菌剂的光催化活性。
6. Simple fabrication of N-doped mesoporous TiO2 nanorods with the enhanced visible light photocatalytic activity [O] . Xiufeng Zhou, Juan Lu, Jingjing Jiang, 2014

机译：具有增强的可见光光催化活性的N掺杂介孔TiO2纳米棒的简单制备
7. Enhanced Photocatalytic Production of H2 on Mesoporous TiO2 Prepared by Template-Free Method: Role of Interparticle Charge Transfer [O] . -1

机译：通过模板 - 无模型方法增强光催化在介孔TiO2上制备的光催化作用：颗粒电荷转移的作用

Integration of nanosized ZIF-8 particles onto mesoporous TiO2 nanobeads for enhanced photocatalytic activity

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Integration of nanosized ZIF-8 particles onto mesoporous TiO₂ nanobeads for enhanced photocatalytic activity