High-Performance COD Detection of Organic Compound Pollutants using Sulfurized-TiO2/Ti Nanotube Array Photoelectrocatalyst

Nurdin Muhammad; Muzakkar Muhammad Zakir; Maulidiyah MaulidiyahTrisna TrisnaArham ZulSalim La Ode AgusIrwan IrwanUmar Akrajas Ali

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High-Performance COD Detection of Organic Compound Pollutants using Sulfurized-TiO2/Ti Nanotube Array Photoelectrocatalyst

机译：High-Performance COD Detection of Organic Compound Pollutants using Sulfurized-TiO2/Ti Nanotube Array Photoelectrocatalyst

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Photoelectrochemical oxidation processes offer a highly sensitive method to detect organic pollutants from wastewaters. Photoactive semiconducting material is the key factor in this process that accelerates the oxidation of the organic pollutant agent for sensitive detection. Chalcogenide-doped TiO2 system has so far come up as a potential photocatalyst system for photoelectrochemical detection of organic compounds. Here, we report a highly sensitive detection of chemical oxygen demand of organic compound pollutant using sulfurized-TiO2 (S-TiO2/Ti) nanotube array (NTA) photoelectrocatalyst. S-TiO2/Ti NTA that is prepared via consecutive anodization of Ti sheet and TiO2 sulfurization process exhibited a high sensitivity to COD value of organic compound pollutants, such as Red HE-3B (Reactive Red 120), Red HE-7B (Reactive Red 141), and Blue HE-RD (Reactive Blue 160). Our results indicated that the COD value is linearly correlated with the concentration of the organic compounds and is close to the COD theoretical value, inferring the high accuracy of the detection. This explains that the new S-TiO2/Ti NTA photoelectrocatalyst effectively enhances the electron transfer dynamic during the electrochemical measurement of an organic pollutant, which is reflected by an impressive proportionality of electrochemical current to the concentration of the pollutant sample. The S-TiO2/Ti NTA promises a highly efficient pollutant detection in the environment.

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来源
《Electrocatalysis》 |2022年第5期|580-589|共10页
作者
Nurdin Muhammad; Muzakkar Muhammad Zakir; Maulidiyah MaulidiyahTrisna TrisnaArham ZulSalim La Ode AgusIrwan IrwanUmar Akrajas Ali;
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作者单位

Univ Halu Oleo;

Inst Agama Islam Negeri IAIN;

Inst Sains Teknol & Kesehatan ISTEKUniv Kebangsaan Malaysia;

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原文格式 PDF
正文语种英语
中图分类化学动力学、催化作用;
关键词
Sulfurized TiO2; Pollutant sensor; Chalcogenide; COD; Photoelectrocatalytic; TIO2; SENSOR;

High-Performance COD Detection of Organic Compound Pollutants using Sulfurized-TiO2/Ti Nanotube Array Photoelectrocatalyst

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