Journal
JOURNAL OF COLLOID AND INTERFACE SCIENCE
Volume 560, Issue -, Pages 857-865Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2019.11.003
Keywords
Photocatalytic; CO2 reduction; Am-TiO2/NH2-MIL-125(Ti); CH4; H2O
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Funding
- National Natural Science Foundation of China, China [21908108, 51578288]
- Jiangsu Province Scientific and Technological Project China [BK20180449]
- Fundamental Research Funds for the Central Universities China [30919011218]
- Key Project of Chinese National Programs for Research and Development China [2016YFCO203800]
- Industry-Academia Cooperation Innovation Fund Projects of Jiangsu Province China [BY2016004-09]
- Jiangsu Province Scientific and Technological Achievements into a Special Fund Project China [BA2016055, BA2017095]
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A series of amorphous TiO2/NH2-MIL-125(Ti) (Am-TiO2/NM) composites were in-situ fabricated via one-pot facile water (H2O) bath method. The photocatalytic performance of as-synthesized samples was evaluated by CO2 reduction with H2O under visible-light irradiation. The Am-TiO2/NM with 22.6 wt % Am-TiO2 loading had the highest photo activity for CO2 reduction into CH4 (1.18 mu mol.h(-1).g(catalyst)(-1)), which was 1.7 times higher than that of pure NM. The enhanced photocatalytic activity was attributed to the formation of the strong interactions between NM and Am-TiO2, which not only improved the ability of electron transfer, but also inhibited the recombination of electron-hole pairs. Furthermore, the optimum sample showed satisfied stability within five times recycling tests during the photo reaction under visible-light irradiation. These kinds of MOF-based composites provided potential applications in the field of energy conversion. (C) 2019 Elsevier Inc. All rights reserved.
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