金属改性煤基石墨烯复合材料的制备及其光催化性能

doi:10.7517/j.issn.1674-0475.2016.05.475

影像科学与光化学 ›› 2016, Vol. 34 ›› Issue (5): 475-481.DOI: 10.7517/j.issn.1674-0475.2016.05.475

金属改性煤基石墨烯复合材料的制备及其光催化性能

张亚婷¹, 李可可¹, 任绍昭¹, 王黛玉¹, 周安宁¹, 邱介山²

1. 西安科技大学化学与化工学院, 陕西西安 710054;
2. 大连理工大学能源材料化工辽宁省重点实验室暨精细化工国家重点实验室, 辽宁大连 116024

收稿日期:2016-08-03 修回日期:2016-08-10 出版日期:2016-09-15 发布日期:2016-09-15
通讯作者: 周安宁, 邱介山
基金资助:
国家自然科学基金项目（21276207，U1203292）资助

Metal-modified Coal-based Graphene Composites and the Photocatalytic Performance

ZHANG Yating¹, LI Keke¹, REN Shaozhao¹, WANG Daiyu¹, ZHOU Anning¹, QIU Jieshan²

1. College of Chemistry & Chemical Engineering, Xi'an University of Science and Technology, Xi'an 710054, Shaanxi, P. R. China;
2. Carbon Research Laboratory, State Key Lab of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, P. R. China

Received:2016-08-03 Revised:2016-08-10 Online:2016-09-15 Published:2016-09-15

摘要/Abstract

摘要：

石墨烯由于其大的比表面积和良好的电子传输特性，在光催化领域具有巨大的应用潜力。本文通过水热法原位合成制备得到CuO/TiO₂/煤基石墨烯复合材料（CTG），采用XRD、SEM、TEM等手段对样品结构、形貌等进行了表征和分析；进而以CuO/TiO₂/煤基石墨烯复合材料为光催化剂，在可见光条件下还原CO₂制备甲醇以考察其光催化性能。结果表明，CuO/TiO₂/煤基石墨烯复合材料具有良好的光催化活性，当其中Cu的负载量为2%（质量分数）时，目标产物甲醇的产率最高可达94.79 μmol/g.cat，为同样条件下单独采用煤基石墨烯作为光催化剂时甲醇产率的5倍。

关键词: 煤基石墨烯, 复合材料, 光催化, 二氧化碳

Abstract:

In this paper, we report a facile hydrothermal method toward in situ growth of ultradispersed CuO/TiO₂ nanoparticles on coal-based graphene composites (CTG). The structure and morphology of composite materials were characterized by XRD, SEM and TEM, respectively. Then, the photocatalytic performance of CTG was evaluated based on photocatalytic reduction of CO₂ to methanol under visible light irradiation. The results showed that the yield of product methanol was highest when Cu contained in CuO/TiO₂/coal-based graphene composite was 2%(mass fraction) which showed a 5 fold increase in methanol production activity (94.79 μmol/g.cat) in comparison with coal-based graphene(19.05 μmol/g.cat) under the same conditions.

Key words: coal-based graphene, composites, photocatalytic, carbon dioxide

张亚婷, 李可可, 任绍昭, 王黛玉, 周安宁, 邱介山. 金属改性煤基石墨烯复合材料的制备及其光催化性能[J]. 影像科学与光化学, 2016, 34(5): 475-481.

ZHANG Yating, LI Keke, REN Shaozhao, WANG Daiyu, ZHOU Anning, QIU Jieshan. Metal-modified Coal-based Graphene Composites and the Photocatalytic Performance[J]. Imaging Science and Photochemistry, 2016, 34(5): 475-481.

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金属改性煤基石墨烯复合材料的制备及其光催化性能

Metal-modified Coal-based Graphene Composites and the Photocatalytic Performance

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