Disclosing the mutual influence of photocatalytic fuel cell and photoelectro-Fenton process in the fabrication of a sustainable hybrid system for efficient Amaranth dye removal and simultaneous electricity production

被引：2

作者：

Thor, Shen-Hui ^{[1
]}

Ho, Li-Ngee ^{[1
]}

Ong, Soon-An ^{[2
]}

Abidin, Che Zulzikrami Azner ^{[2
]}

Heah, Cheng-Yong ^{[3
]}

Yap, Kea-Lee ^{[1
]}

机构：

[1] Univ Malaysia Perlis, Fac Chem Engn Sr Technol, Perlis, Malaysia

[2] Univ Malaysia Perlis, Fac Civil Engn Sr Technol, Water Res & Environm Sustainabil Growth Ctr Excel, Perlis, Malaysia

[3] Univ Malaysia Perlis, Fac Mech Engn Sr Technol, Perlis, Malaysia

来源：

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH | 2023年 / 30卷 / 12期

基金：

英国科研创新办公室;

关键词：

Photocatalytic fuel cell; Photoelectro-Fenton process; Mutual influence; Circuit connection; UV light irradiation; Dye degradation; Power generation; ZERO-VALENT IRON; WASTE-WATER; DIAZO DYE; ELECTROCHEMICAL OXIDATION; AZO-DYE; DEGRADATION; PHOTOANODE; MINERALIZATION; NANOPARTICLES; GENERATION;

D O I：

10.1007/s11356-022-24647-5

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Photocatalytic fuel cell (PFC) was employed to provide renewable power sources to photoelectro-Fenton (PEF) process to fabricate a double-chambered hybrid system for the treatment of azo dye, Amaranth. The PFC-PEF hybrid system was interconnected by a circuit attached to the electrodes in PFC and PEF. Circuit connection is the principal channel for the electron transfer and mobility between PFC and PEF. Thus, different circuit connections were evaluated in the hybrid system for their influences on the Amaranth dye degradation. The PFC-PEF system under the complete circuit connection condition attained the highest decolourization efficiency of Amaranth (PFC: 98.85%; PEF: 95.69%), which indicated that the complete circuit connection was crucial for in-situ formation of reactive species in dye degradation. Besides, the pivotal role of ultraviolet (UV) light irradiation in the PFC-PEF system for both dye degradation and electricity generation was revealed through various UV light-illuminating conditions applied for PFC and PEF. A remarkable influence of UV light irradiation on the production of hydrogen peroxide and generation and regeneration of Fe2+ in PEF was demonstrated. This study provided a comprehensive mechanistic insight into the dye degradation and electricity generation by the PFC-PEF system.

引用

页码：34363 / 34377

页数：15

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