Explosive Synthesis of TiO2/rGO Composites and their Photocatalytic Properties

IF 1.4 4区 化学 Q4 PHYSICS, ATOMIC, MOLECULAR & CHEMICAL
Hong Yan Liu, Xin Yang Zheng, Shi Kai Zhao, Xiao Fei Zhang, Yanli Zhang, Mingli Jiao
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引用次数: 0

Abstract

TiO2/reduced graphene oxide nanocomposites were rapidly prepared via the explosive method using graphene oxide and Ti(OH)4 as raw materials. The effect of graphene oxide content on the photocatalytic degradation of methylene blue was investigated. Results show that during rapid heating ofthe sample, graphene oxide can undergo explosive reaction, which induced the simultaneous reduction of graphene oxide and the decomposition of Ti(OH)4. TiO2 nanorods with a diameter and alength of approximately 10 and 70 nm, respectively, were loaded onto the graphene nanosheets. TiO2/reduced graphene oxide nanocomposites exhibited an excellent photocatalytic performance. Under simulated sunlight irradiation, they exhibited the best photocatalytic activity and can degrade 99.7% methylene blue (40 mg/L) within 60 min.

爆炸性合成TiO2/rGO复合材料及其光催化性能
以氧化石墨烯和Ti(OH)4为原料,采用爆炸法制备了TiO2/还原性氧化石墨烯纳米复合材料。研究了氧化石墨烯含量对光催化降解亚甲基蓝的影响。结果表明,在样品快速加热过程中,氧化石墨烯发生爆炸反应,导致氧化石墨烯的还原和Ti(OH)4的分解同时发生。将直径约为10 nm、长度约为70 nm的TiO2纳米棒加载到石墨烯纳米片上。TiO2/还原氧化石墨烯纳米复合材料表现出优异的光催化性能。在模拟日光照射下,它们表现出最佳的光催化活性,可在60 min内降解99.7% (40 mg/L)的亚甲基蓝。
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来源期刊
Russian Journal of Physical Chemistry B
Russian Journal of Physical Chemistry B 化学-物理:原子、分子和化学物理
CiteScore
2.20
自引率
71.40%
发文量
106
审稿时长
4-8 weeks
期刊介绍: Russian Journal of Physical Chemistry B: Focus on Physics is a journal that publishes studies in the following areas: elementary physical and chemical processes; structure of chemical compounds, reactivity, effect of external field and environment on chemical transformations; molecular dynamics and molecular organization; dynamics and kinetics of photoand radiation-induced processes; mechanism of chemical reactions in gas and condensed phases and at interfaces; chain and thermal processes of ignition, combustion and detonation in gases, two-phase and condensed systems; shock waves; new physical methods of examining chemical reactions; and biological processes in chemical physics.
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