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g-C3N4-TiO2光催化电极耦合生物产电阳极还原硝酸根
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Indexed by: 期刊论文

Date of Publication: 2017-04-01

Journal: 无机化学学报

Included Journals: CSCD、SCIE、Scopus

Document Type: J

Volume: 33

Issue: 4

Page Number: 637-643

ISSN No.: 1001-4861

Key Words: 光催化;生物阳极;氮化碳;二氧化钛;硝酸盐

Abstract: 以g-C3N4-TiO2为光催化阴极,耦合生物阳极进行光催化还原硝酸盐研究.考察了空穴清除剂、曝气条件、生物阳极对光催化还原硝酸盐的影响,并对还原机理进行分析.结果表明在曝氮气、有生物阳极时硝酸盐去除效果最好,空穴清除剂对硝酸盐还原影响较小.反应210 min后硝酸盐去除率为72.57%,副产物亚硝酸盐浓度为0.31 mg·L-1,氨氮未检出.经重复实验后,负载的催化剂不脱落,催化剂活性基本不变,可重复使用.

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