TY - JOUR

T1 - Superior vis light photo-catalytic efficiency for remediation of gaseotoluene using fewo4 /g-c3 n4 direct z system

AU - Mohamed, Reda M.

AU - Bahnemann, Detlef W.

AU - Basaleh, Amal S.

AU - Gadah, Razan H.

N1 - Funding information: This project was funded by the Deanship of Scientific Research (DSR) at King Abdulaziz University, Jeddah, Saudi Arabia under grant no. KEP-MSc-3-130-40. The authors, therefore, acknowledge with thanks DSR for technical and financial support.

PY - 2020/4

Y1 - 2020/4

N2 - In this investigation, removal of gaseous toluene was has been performed adopting FeWO4 /g-C3 N4 composites. The collected data and analyses have indicated that a combination of the two components (g-C3 N4 and FeWO4) in the mode of FeWO4 /g-C3 N4 composite showed better catalytic efficiency for gaseous toluene remediation compared to that of the individual constituents themselves. The performed enhancement has been done through the direct Z-scheme tool. In this system, as the result of the special amalgamation between g-C3 N4 and FeWO4, there was a combination of the photoexcited electrons from the conduction band (C.B.) of the FeWO4 with the photo-excited holes from the valence band (V.B.) of the g-C3 N4 whereas, the holes in the V.B. of the FeWO4 and the electrons in C.B. of the g-C3 N4 were preserved. And so, the powerful quantity of accessible holes and electrons could be produced via the synthesized FeWO4 /g-C3 N4 composite, which by their role, contributed strongly to the photo-catalytic destruction of the gaseous toluene although beneath visible light. The equal molar ratios of FeWO4 and g-C3 N4 (1Fe/1C material) have proven to possess the greatest photo-catalytic remediation of gaseous toluene. Gaseous toluene has been removed and mineralized adopting the synthesized 1Fe/1C material with percentages of 96.6% and 99.6%, respectively. In addition, the synthesized FeWO4 /g-C3 N4 composite showed great stability all over the removal process of toluene.

AB - In this investigation, removal of gaseous toluene was has been performed adopting FeWO4 /g-C3 N4 composites. The collected data and analyses have indicated that a combination of the two components (g-C3 N4 and FeWO4) in the mode of FeWO4 /g-C3 N4 composite showed better catalytic efficiency for gaseous toluene remediation compared to that of the individual constituents themselves. The performed enhancement has been done through the direct Z-scheme tool. In this system, as the result of the special amalgamation between g-C3 N4 and FeWO4, there was a combination of the photoexcited electrons from the conduction band (C.B.) of the FeWO4 with the photo-excited holes from the valence band (V.B.) of the g-C3 N4 whereas, the holes in the V.B. of the FeWO4 and the electrons in C.B. of the g-C3 N4 were preserved. And so, the powerful quantity of accessible holes and electrons could be produced via the synthesized FeWO4 /g-C3 N4 composite, which by their role, contributed strongly to the photo-catalytic destruction of the gaseous toluene although beneath visible light. The equal molar ratios of FeWO4 and g-C3 N4 (1Fe/1C material) have proven to possess the greatest photo-catalytic remediation of gaseous toluene. Gaseous toluene has been removed and mineralized adopting the synthesized 1Fe/1C material with percentages of 96.6% and 99.6%, respectively. In addition, the synthesized FeWO4 /g-C3 N4 composite showed great stability all over the removal process of toluene.

KW - FeWO

KW - G-C N

KW - Remediation of gaseous toluene

KW - Visible light

UR - http://www.scopus.com/inward/record.url?scp=85098741065&partnerID=8YFLogxK

U2 - 10.5004/dwt.2020.25227

DO - 10.5004/dwt.2020.25227

M3 - Article

AN - SCOPUS:85098741065

VL - 182

SP - 332

EP - 341

JO - Desalination and water treatment

JF - Desalination and water treatment

SN - 1944-3994

ER -