以氯化亚锡、碳酸氢胺和氧化石墨烯(GO)为原料,通过固相研磨辅助超声反应合成技术制备了两种氧化亚锡/石墨烯复合材料,并研究了复合材料的物相组成、显微形貌和可见光催化性。结果表明,氯化亚锡和碳酸氢胺反应后生成了单相SnO纳米片。原料中掺杂石墨烯后,促进了SnO2的合成。通过石墨烯添加的不同阶段,获得了两种复合材料,一种为GO表面分散着颗粒均匀的纳米SnO和SnO2纳米颗粒,具有优良的可见光催化性能,可在50min内降解99%的甲基橙溶液;另一种为部分GO掺杂SnO和SnO2颗粒,光照80min后,对甲基橙的降解率达到98%。
Two kinds of SnO/grapheme composites were synthesized by a solid phase grinding assisted ultrasonic reaction technology from SnCl2,NH4HCO3 and graphene oxide (GO).The composition,microstructure and visible light catalytic property of the composites were studied.The results showed that SnCl2 reacted with NH4HCO3 to form single phase SnO.Adding of GO in the raw materials may promote the synthesis of SnO2.Two kinds of composites were obtained by adding GO with different stage.Nano SnO and SnO2 particles were dispersed on the surface of GO in one composite.This composite possessed excellent visible light photocatalytic property,which can degrade 99% methyl orange within 50min.Parts of GO were doped with SnO and SnO2 particles in another composite.This composite can degrade 98% methyl orange within 80min.
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基金资助
河南省创新型科技团队项目(CXTD2013048);河南省教育厅重点项目(17A430034和18A430035);河南省高校科技创新团队项目(15IRTSTHN004)
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