Highly robust and efficient Ti-based Sb-SnO2 anode with a mixed carbon and nitrogen interlayer for electrochemical 1,4-dioxane removal from water

被引：62

作者：

Mameda, Naresh ^{[1
]}

Park, Hyeona ^{[2
]}

Shah, Syed Salman Ali ^{[2
]}

Lee, Kibaek ^{[1
,3
]}

Li, Chi-Wang ^{[4
]}

Naddeo, Vincenzo ^{[5
]}

Choo, Kwang-Ho ^{[1
,2
]}

机构：

[1] Kyungpook Natl Univ, Adv Inst Water Ind, 80 Daehak Ro, Daegu 41566, South Korea

[2] Kyungpook Natl Univ, Dept Environm Engn, 80 Daehak Ro, Daegu 41566, South Korea

[3] Chonnam Natl Univ, Dept Biotechnol & Biochem Engn, 77 Yongbong Ro, Gwangju 61186, South Korea

[4] Tamkang Univ, Dept Water Resources & Environm Engn, 151 Yingzhuan Rd, New Taipei 25137, Taiwan

[5] Univ Salerno, Dept Civil Engn, Sanit Environm Engn Div, I-84084 Fisciano, SA, Italy

来源：

CHEMICAL ENGINEERING JOURNAL | 2020年 / 393卷

基金：

新加坡国家研究基金会;

关键词：

Sb-SnO2; Electrode stability; Interlayer; Service life; 1,4-Dioxane; DOPED SNO2 ELECTRODE; WASTE-WATER; TI/SNO2-SB ELECTRODES; ELECTROCATALYTIC ACTIVITIES; HYDROTHERMAL SYNTHESIS; TI/SB-SNO2; ELECTRODE; ORGANIC POLLUTANTS; METHYLENE-BLUE; OXIDATION; DEGRADATION;

D O I：

10.1016/j.cej.2020.124794

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Ti-based Sb-SnO2 electrodes are attractive due to their excellent catalytic activity but have a short service life. Here, we report a highly stable and efficient Ti/TiONC/Sb-SnO2 electrode, which was fabricated through hydrothermal reactions using urea to form TiONC interlayers and electrodeposition-annealing to coat the active SbSnO2 catalysts. The triple-layered anode was characterized by highly crystalline structures, high oxygen evolution potentials, and corrosion-resistance properties. The structural arrangement yielded better electrocatalytic performances than that using the control electrode (Ti/Sb-SnO2), showing enhanced organics degradation efficiencies. This new electrode's lifetime was significantly (similar to 25 times) longer than that of either the control or any Sb-SnO2 electrode modified with non-precious materials reported in the literature. The electrode's enhanced stability was attributed to the insertion of the mixed C and N interlayers that are resistant to oxidants and corrosive ions. The Ti/TiONC/Sb-SnO2 anode holds promise for use in electrochemical water treatment.

引用

页数：11

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