TY - JOUR
T1 - Versatile heterojunction of gold nanoparticles modified phosphorus doped carbon nitride for enhanced photo-electrocatalytic sensing and degradation of 4-chlorophenol
AU - Rafique, Nasir
AU - Asif, Abdul Hannan
AU - Hirani, Rajan Arjan Kalyan
AU - Wu, Hong
AU - Shi, Lei
AU - Zhang, Shu
AU - Wang, Shuaijun
AU - Yin, Yu
AU - Wang, Shaobin
AU - Sun, Hongqi
N1 - Funding Information:
The authors highly acknowledge Higher Education Commission (HEC), Pakistan and Edith Cowan University (ECU), Australia for providing the joint scholarship to support the Ph.D. study. The authors are thankful to the Centre for Microscopy, Characterization & Analysis (CMCA), The University of Western Australia for providing the scientific and technical support for microscopic analysis.
Funding Information:
The authors highly acknowledge Higher Education Commission (HEC), Pakistan and Edith Cowan University (ECU), Australia for providing the joint scholarship to support the Ph.D. study. The authors are thankful to the Centre for Microscopy, Characterization & Analysis (CMCA), The University of Western Australia for providing the scientific and technical support for microscopic analysis.
Publisher Copyright:
© 2022 Elsevier Inc.
PY - 2023/2/15
Y1 - 2023/2/15
N2 - Increasing water pollution has imposed great threats to public health, and made efficient monitoring and remediation technologies critical to a clean environment. In this study, a versatile heterojunction of Au nanoparticles modified phosphorus doped carbon nitride (Au/P-CN) is designed and fabricated. The Au/P-CN heterostructure demonstrates improved light absorption, rapid separation of charge carriers, and improved electrical conductivity. Taking the toxic 4-chlorophenol (4-CP) as an example, an ultrasensitive photoelectrochemical (PEC) sensor is successfully demonstrated, exhibiting a wide linear range (0.1–52.1 μM), low detection limit (∼0.02 μM), significant stability and selectivity, as well as reliable analysis in real samples. Moreover, efficient photocatalytic degradation with a high removing efficiency (∼87%) toward 4-CP is also achieved, outperforming its counterpart of Au nanoparticles (NPs) modified graphitic carbon nitride (Au/g−CN, ∼59%). This work paves a new way for efficient and simultaneous detection and remediation of organic pollutants over versatile photoactive catalysts.
AB - Increasing water pollution has imposed great threats to public health, and made efficient monitoring and remediation technologies critical to a clean environment. In this study, a versatile heterojunction of Au nanoparticles modified phosphorus doped carbon nitride (Au/P-CN) is designed and fabricated. The Au/P-CN heterostructure demonstrates improved light absorption, rapid separation of charge carriers, and improved electrical conductivity. Taking the toxic 4-chlorophenol (4-CP) as an example, an ultrasensitive photoelectrochemical (PEC) sensor is successfully demonstrated, exhibiting a wide linear range (0.1–52.1 μM), low detection limit (∼0.02 μM), significant stability and selectivity, as well as reliable analysis in real samples. Moreover, efficient photocatalytic degradation with a high removing efficiency (∼87%) toward 4-CP is also achieved, outperforming its counterpart of Au nanoparticles (NPs) modified graphitic carbon nitride (Au/g−CN, ∼59%). This work paves a new way for efficient and simultaneous detection and remediation of organic pollutants over versatile photoactive catalysts.
KW - Degradation
KW - Heterostructure
KW - Monitoring
KW - Organic pollutant
KW - Photoelectrocatalysis
UR - https://www.scopus.com/pages/publications/85142190223
U2 - 10.1016/j.jcis.2022.11.047
DO - 10.1016/j.jcis.2022.11.047
M3 - Article
C2 - 36410293
AN - SCOPUS:85142190223
SN - 0021-9797
VL - 632
SP - 117
EP - 128
JO - Journal of Colloid and Interface Science
JF - Journal of Colloid and Interface Science
ER -
SDG 3 Good Health and Well-being
SDG 6 Clean Water and Sanitation