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纳米光催化还原去除水中铜离子

Keywords: 光催化还原,铜离子,原子吸收光谱法,二氧化钛

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Abstract:

基于纳米光催化还原技术,以纳米二氧化钛作为光催化剂,研究一种水体中重金属Cu2+去除方法。采用原子吸收评价水体中Cu2+去除效果,考察了水体pH值、不同光源及光照时间、催化剂添加量、Cu2+初始浓度以及乙醇加入量的影响。结果表明,Cu2+初始浓度在2~50mg/L,pH为6.0~8.0,添加0.3g/L纳米二氧化钛,紫外光照50min,不加乙醇,Cu2+去除率可达到80%以上。

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