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OALib Journal期刊
ISSN: 2333-9721
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氯仿在悬浮tio2体系中的降解
DOI: 10.3969/j.issn.1671-7627.2004.04.002, PP. 5-9
Keywords: tio2,氯仿,光催化,溶氧量
Abstract:
分别用光还原沉积法制备的掺铂tio2纤维和商用tio2作为催化剂,对氯仿进行光催化降解.通过测定cl-浓度发现不同通o2方式对氯仿的光降解有很大影响,o2的存在,促进了氯仿的降解;并进一步对溶液中的溶氧量(do)测定,发现do值呈线性下降且氯仿降解过程中有氧降解和无氧降解2种机理是共存的;同时发现上述2种催化剂的反应现象大相径庭,并结合了有机质液相吸附理论对其反应现象进行分析,发现纤维状微观结构是其高光催化性能的直接原因.
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