TY - JOUR
T1 - Hydrothermal Microwave Synthesis of Co3O4/In2O3 Nanostructures for Photoelectrocatalytic Reduction of Cr(VI)
AU - Nan, Jie Jie
AU - Guo, Sijia
AU - Alhashmialameer, Dalal
AU - He, Qingming
AU - Meng, Yinuo
AU - Ge, Ruixiang
AU - El-Bahy, Salah M.
AU - Naik, Nithesh
AU - Murugadoss, Vignesh
AU - Huang, Mina
AU - Xu, Ben Bin
AU - Shao, Qian
AU - Guo, Zhanhu
N1 - Funding Information:
This work was supported by the Science and Technology Project of Qingdao West Coast New Area (No. 2020-91), the Natural Science Foundation of Shandong Province (No. ZR2019BEE075). The authors gratefully acknowledge financial support from Taif University Researchers Supporting Project number (TURSP-2020/135), Taif University, Taif, Saudi Arabia.
Publisher Copyright:
© 2022 American Chemical Society. All rights reserved.
PY - 2022/7/22
Y1 - 2022/7/22
N2 - Co3O4/In2O3 nanocomposites were prepared via a microwave-hydrothermal method and directly used as photoanodes for the photoelectrocatalytic (PEC) process to reduce Cr(VI). The as-prepared Co3O4/In2O3 composites show a rod-like structure, which is composed of nanoparticles. The PEC experiments indicated that after 120 min of irradiation with 0.7 V bias voltage and visible light, the Cr(VI) reduction efficiency of Co3O4/In2O3 composites in aqueous solution was 100%, which was superior to the samples prepared by other methods. Moreover, the Co3O4/ In2O3 composite still had a high catalytic activity after five runs of PEC experiments. Elimination experiments demonstrate that photo-generated electrons (e−) performed a key role in the catalytic reduction of Cr(VI). The significantly improved PEC performance can be attributed to the bias voltage and the p-n heterojunction formed between Co3O4 and In2O3. Therefore, Co3O4/ In2O3 nanocomposites have a considerable potential for the PEC reduction of Cr(VI).
AB - Co3O4/In2O3 nanocomposites were prepared via a microwave-hydrothermal method and directly used as photoanodes for the photoelectrocatalytic (PEC) process to reduce Cr(VI). The as-prepared Co3O4/In2O3 composites show a rod-like structure, which is composed of nanoparticles. The PEC experiments indicated that after 120 min of irradiation with 0.7 V bias voltage and visible light, the Cr(VI) reduction efficiency of Co3O4/In2O3 composites in aqueous solution was 100%, which was superior to the samples prepared by other methods. Moreover, the Co3O4/ In2O3 composite still had a high catalytic activity after five runs of PEC experiments. Elimination experiments demonstrate that photo-generated electrons (e−) performed a key role in the catalytic reduction of Cr(VI). The significantly improved PEC performance can be attributed to the bias voltage and the p-n heterojunction formed between Co3O4 and In2O3. Therefore, Co3O4/ In2O3 nanocomposites have a considerable potential for the PEC reduction of Cr(VI).
UR - https://www.scopus.com/pages/publications/85135389470
UR - https://www.scopus.com/pages/publications/85135389470#tab=citedBy
U2 - 10.1021/acsanm.2c00107
DO - 10.1021/acsanm.2c00107
M3 - Article
AN - SCOPUS:85135389470
SN - 2574-0970
VL - 5
SP - 8755
EP - 8766
JO - ACS Applied Nano Materials
JF - ACS Applied Nano Materials
IS - 7
ER -