摘要
以聚苯乙烯(PS)为前驱体、二氧化钛(TiO_(2))为激光响应催化剂、近红外激光(1064 nm)为光源,通过激光辐照方法成功制备碳材料,并将其用于亚甲基蓝(MB)溶液的光催化降解应用。研究发现,TiO_(2)可以促进PS基体实现光热转化,将激光能量转化为热能并发生原位碳化反应。激光参数,如激光功率、扫描速率和TiO_(2)的添加量,是影响PS碳化产物的重要因素。扫描电子显微镜、拉曼光谱和X射线衍射测试结果表明,碳化产物为TiO_(2)和石墨烯组成的复合碳材料。制备的碳材料由于TiO_(2)的存在而具有光催化降解效果,在紫外线作用下对水相中MB的去除率达到88%。
Using polystyrene(PS)as the precursor,titanium dioxide(TiO_(2))as the laser responsive catalyst,and nearinfrared laser(1064 nm)as the light source,carbon materials were successfully prepared by laser irradiation method and applied for photocatalytic degradation of methylene blue(MB)solution.Research has found that TiO_(2) can promote the photothermal conversion of PS matrix,converting laser energy into thermal energy and undergoing in-situ carbonization reaction.Laser parameters such as laser power,scanning rate,and TiO_(2) addition are important factors affecting the carbonization products of PS.The results of scanning electron microscopy,Raman spectroscopy,and X-ray diffraction tests indicate that the carbonized product is a composite carbon material composed of TiO_(2) and graphene.The prepared carbon material has photocatalytic degradation effect due to the presence of TiO_(2),and under the action of ultraviolet light,the removal rate of MB in aqueous phase reaches 88%.
作者
章诚
成骏峰
ZHANG Cheng;CHENG Junfeng(Huaide College,Changzhou University,Taizhou 214500,China;School of Materials Science and Engineering,Changzhou University,Changzhou 213164,China)
出处
《塑料科技》
北大核心
2025年第9期55-59,共5页
Plastics Science and Technology
基金
江苏省高等学校基础科学(自然科学)研究重大项目(22KJA430001)。
关键词
聚苯乙烯
二氧化钛
激光辐照
碳化
光催化降解
Polystyrene
TiO_(2)
Laser irradiation
Carbonization
Photocatalytic degradation
