Investigation of photoreduction of Cr (VI) and electrocatalytic properties of hydrothermally produced novel CoFe2O4/ZnO nanostructure

被引：62

作者：

Alharbi, F. F. ^{[1
]}

Aman, Salma ^{[2
]}

Ahmad, Naseeb ^{[2
]}

Abdullah, Muhammad ^{[3
]}

Abid, Abdul Ghafoor ^{[4
]}

Manzoor, Sumaira ^{[4
]}

Trukhanov, Sergei ^{[5
,6
]}

Sayyed, M. I. ^{[7
,8
]}

Tishkevich, Daria ^{[6
]}

Trukhanov, Alex ^{[5
,6
,9
]}

机构：

[1] Princess Nourah Bint Abdulrahman Univ, Coll Sci, Dept Phys, POB 84428, Riyadh 11671, Saudi Arabia

[2] Khwaja Fareed Univ Engn & Informat Technol, Inst Phys, Abu Dhabi Rd, Rahim Yar Khan 64200, Pakistan

[3] Govt Coll Univ Lahore, Dept Chem, Katchery Rd, Lahore 54000, Punjab, Pakistan

[4] Bahauddin Zakariya Univ, Inst Chem Sci, Multan 60800, Pakistan

[5] Sci Pract Mat Res Ctr NAS Belarus, Lab Magnet Film Phys, Minsk 220072, BELARUS

[6] Natl Univ Sci & Technol MISiS, Smart Sensors Lab, Moscow 119049, Russia

[7] Isra Univ, Fac Sci, Dept Phys, Amman 1162, Jordan

[8] Imam Abdulrahman Bin Faisal Univ, Inst Res & Med Consultat IRMC, Dept Nucl Med Res, Dammam 31441, Saudi Arabia

[9] LN Gumilyov Eurasian Natl Univ, Astana 010000, Kazakhstan

来源：

SOLID STATE SCIENCES | 2023年 / 143卷

关键词：

Nanocomposite; Hydrothermal method; Photoreduction of Cr (VI); Electrocatalyst; PHOTOCATALYTIC REDUCTION; AQUEOUS CR(VI); DEGRADATION; NANOPARTICLES; REMOVAL; CO2; HETEROJUNCTION; NANOCOMPOSITES; METALS; ZNO;

D O I：

10.1016/j.solidstatesciences.2023.107278

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A hydrothermal technique was used to create a CoFe2O4/ZnO (CFO/ZO) nanocomposite for the photoreduction of hexavalent chromium. To boost the photocatalytic efficiency of the nanohybrid, CoFe2O4 (CFO) nanoparticles were added to ZnO (ZO) nanoparticles. The photoreduction efficacy of the catalyst was measured for the conversion of hexavalent Cr into trivalent Cr. The results demonstrate that CFO exhibited a 91.20% photoreduction efficiency for Cr (VI) compared to CoFe2O4 (86.81%) and ZO (72.52%). This obtained rate constant for CFO, ZO and CFO/ZO are 0.020, 0.014 & 0.0255 min-1, respectively. The electrochemical results suggest that the CFO/ ZO exhibited a smaller Rct value (2.718 & omega;) than the CFO (5.97 & omega;) and ZO (4.12 & omega;). The outcome indicates that CFO/ZO can effectively detoxify the noxious chemical like Cr (VI) by photoreduction to a less hazardous state (Cr III) than the ZO and CFO pristine materials.

引用

页数：8

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