摘要
氧化亚铜的光降解成为当前国内外研究的热点之一。主要通过自制的微纳米氧化亚铜为催化剂,以甲基橙模拟印染废水进行光降解研究,通过吸光度评价降解效率。实验探究了氧化亚铜的形貌、粒径、用量以及使用频率等因素的改变对光降解效果的影响。结果表明,当2μm球形微米氧化亚铜用量1.2 g/L,甲基橙初始质量浓度为20 mg/L时,经过16 h无阳光直射条件下,测得的降解率最高可达90%。实验还进一步发现,添加纤维素载体不仅能够减少光催化剂团聚,而且方便回收。
The issue of printing and dyeing wastewater limited China＇ s printing industry. The recent researches were focused on photocatalysis of the semi-conductive materials like Cu2O. A serial of Cu2O were prepared by one-step reduction reaction. Then, the degradation experiments were carried out by changing the conditions like the Cu2O morphology, particle s optimistic rate degradation of methylene orange quantity, the reuse, etc. Last, the paper disclosed that the mg/L） was more than 90% during 16 hours without directsunlight and other extra-fixings. And the prospective catalytic concentration was 1.2 g/L, as soon as particle size, morphology was 2 μm and spherical morphology, respectively. At the same time, the matter of particles aggregation and reused were resolved by adding hydroxypropyl methylcellulose as matrix materials.
出处
《中国农学通报》
CSCD
2014年第14期300-304,共5页
Chinese Agricultural Science Bulletin
基金
山东省高等学校青年骨干教师国内访问学者项目
青岛农业大学大学生创新教育立项(第六届)"插层膨润土包覆Cu2O的制备及其降解印染废水的应用研究"
青岛市科技计划基础研究项目"包覆氧化亚铜的温度敏感型微胶囊的制备
性能及其农业应用研究"(13-1-4-233-jch)
关键词
微米氧化亚铜
光催化
降解率
micro-Cu2O
photocatalytic catalytic
the degradation rate
