Solar light-driven simultaneous pharmaceutical pollutant degradation and green hydrogen production using a mesoporous nanoscale WO3/BiVO4 heterostructure photoanode

被引：21

作者：

Davies, Katherine Rebecca ^{[1
]}

Allan, Michael G. ^{[2
]}

Nagarajan, Sanjay ^{[3
]}

Townsend, Rachel ^{[4
]}

Dunlop, Tom ^{[1
]}

McGettrick, James D. ^{[1
]}

Asokan, Vijay Shankar ^{[5
]}

Ananthraj, Sengeni ^{[6
]}

Watson, Trystan ^{[1
]}

Godfrey, A. Ruth ^{[4
]}

Durrant, James R. ^{[1
,7
,8
]}

Maroto-Valer, M. Mercedes ^{[9
]}

Kuehnel, Moritz F. ^{[2
,10
]}

Pitchaimuthu, Sudhagar ^{[1
,9
]}

机构：

[1] Swansea Univ, Fac Sci & Engn, SPECIFIC, Swansea, Wales

[2] Swansea Univ, Fac Sci & Engn, Dept Chem, Singleton Pk, Swansea SA2 8PP, Wales

[3] Univ Bath, Dept Chem Engn, Bath BA2 7AY, England

[4] Swansea Univ, Swansea Univ Med Sch, Fac Med Hlth & Life Sci, Singleton Pk, Swansea SA2 8PP, Wales

[5] Chalmers Univ Technol, Dept Chem & Chem Engn, Environm Inorgan Chem, S-41296 Gothenburg, Sweden

[6] Waseda Univ, Sch Adv Sci & Engn, Dept Appl Chem, 3-4-1 Okubo,Shinju Ku, Tokyo, Japan

[7] Imperial Coll London, Dept Chem, London, England

[8] Imperial Coll London, Ctr Processable Elect, London, England

[9] Heriot Watt Univ, Inst Mech Proc & Energy Engn, Res Ctr Carbon Solut RCCS, Sch Engn & Phys Sci, Edinburgh, Scotland

[10] Fraunhofer Inst Wind Energy Syst IWES, Haupttor 4310, D-06237 Leuna, Germany

来源：

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING | 2023年 / 11卷 / 03期

基金：

英国工程与自然科学研究理事会;

关键词：

Pharmaceutical pollutants; Wastewater treatment; Photoelectrocatalysis; WO3; BiVO4; Hydrogen; Solar Energy; VISIBLE-LIGHT; PHOTOCATALYTIC DEGRADATION; CHARGE SEPARATION; WATER OXIDATION; OH RADICALS; PHOTOELECTROCATALYTIC DEGRADATION; PHOTOELECTROCHEMICAL DEGRADATION; ORGANIC POLLUTANTS; BIVO4; PHOTOANODES; IBUPROFEN;

D O I：

10.1016/j.jece.2023.110256

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Photoelectrocatalysis is one of the most favourable techniques that could be used in this remit as it has the potential to utilise natural sunlight to generate oxidants in situ to mediate effective pollutant degradation. This work, therefore, utilises a mesoporous nanoscale WO3/BiVO4 heterostructure photoanode to effectively degrade ibuprofen in wastewater combined with simultaneous green hydrogen generation at the cathode under simulated sunlight. A near complete degradation (>96%) of ibuprofen (starting concentration of 100 mg/L), with no hazardous intermediates (determined via mass spectrometry analysis), along with simultaneous H2 evolution of 114 & mu;mol/cm2 after 145 min was demonstrated in this work. In addition, intermediate product analysis, the role of the type of in situ oxidants on degradation, the mechanistic pathway of degradation, and the material characteristics of mesoporous photoanode were also investigated. First experimental evidence of in situ generated H2O2 contributing to the degradation of ibuprofen is presented.

引用

页数：14

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