活性炭-铁酸镍磁性催化剂的光催化性能

催化学报 , 2012, 33(8): 1417-1422. doi: 10.3724/SP.J.1088.2012.20348

活性炭-铁酸镍磁性催化剂的光催化性能

冯连荣 ^1, , 胡丰田 ^2, , 刘成宝 ^3, , 陈丰 ^4, , 徐楠 ^5, , 刘守清 ^6, , 陈志刚 ^7,

1.苏州科技学院化学与生物工程学院,江苏省环境功能材料重点实验室,江苏苏州215009

2.苏州科技学院化学与生物工程学院,江苏省环境功能材料重点实验室,江苏苏州215009

3.苏州科技学院化学与生物工程学院,江苏省环境功能材料重点实验室,江苏苏州215009

4.苏州科技学院化学与生物工程学院,江苏省环境功能材料重点实验室,江苏苏州215009

5.苏州科技学院化学与生物工程学院,江苏省环境功能材料重点实验室,江苏苏州215009

6.苏州科技学院化学与生物工程学院,江苏省环境功能材料重点实验室,江苏苏州215009

7.苏州科技学院化学与生物工程学院,江苏省环境功能材料重点实验室,江苏苏州215009

基金项目: 苏州市环保局科研项目(B201106) 国家自然科学基金(21107077;21071107) 绿色催化四川省高校重点实验室开放项目(LYJ1109) 江苏省高校优势学科基金苏州科技学院研究生创新工程项目(SKCX11S_062)

关键词：活性炭 , 铁酸镍 , 异相芬顿催化剂 , 可见光 , 催化降解

Photocatalytic Properties of Activated Carbon-NiFe2O4 Magnetic Catalyst

以活性炭、NiSO4·6H2O和FeC13·6H2O为主要原料,在180℃水热反应10h制得了磁性纳米材料活性炭-铁酸镍(AC-NiFe2O4),采用X射线粉末衍射法、傅里叶变换红外光谱法、扫描电镜法、透射电镜法及振动样品磁强计对样品进行了表征.在可见光λ＞400 nm照射下,以AC-NiFe2O4为异相芬顿催化剂,在草酸存在下研究了亚甲蓝、罗丹明B和孔雀石绿光催化降解反应.结果表明,未掺杂AC的NiFe2O4在可见光辐射下基本不催化降解有机物；而掺杂活性炭后反应10h内20.0 mg/L有机模拟污染物降解率达到90％以上.催化剂重复循环使用8次以上,其催化活性基本不变.可见AC-NiFe2O4有望用于光催化降解有机污染物中.

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