TY - JOUR
T1 - Role of nanocatalyst in the treatment of organochlorine compounds - A review
AU - El-Sheikh, Mohamed A.
AU - Hadibarata, Tony
AU - Yuniarto, Adhi
AU - Sathishkumar, Palanivel
AU - Abdel-Salam, Eslam M.
AU - Alatar, Abdulrahman A.
N1 - Publisher Copyright:
© 2020 Elsevier Ltd
PY - 2021/4
Y1 - 2021/4
N2 - Since a few centuries ago, organochlorine compounds (OCs) become one of the threatened contaminants in the world. Due to the lipophilic and hydrophobic properties, OCs always discover in fat or lipid layers through bioaccumulation and biomagnification. The OCs are able to retain in soil, sediment and water for long time as it is volatile, OCs will evaporate from soil and condense in water easily and frequently, which pollute the shelter of aquatic life and it affects the function of organs and damage system in human body. Photocatalysis that employs the usage of semiconductor nanophotocatalyst and solar energy can be the possible alternative for current conventional water remediation technologies. With the benefits of utilizing renewable energy, no production of harmful by-products and easy operation, degradation of organic pollutants in rural water bodies can be established. Besides, nanophotocatalyst that is synthesized with nanotechnology outnumbered conventional catalyst with larger surface area to volume ratio, thus higher photocatalytic activity is observed. In contrast, disadvantages particularly no residual effect in water distribution network, requirement of post-treatment and easily affected by various factors accompanied with photocatalysis method cannot be ignored. These various factors constrained the photocatalytic efficiency via nanocatalysts which causes the full capacity of solar photocatalysis has yet to be put into practice. Therefore, further modifications and research are still required in nanophotocatalysts’ synthesis to overcome limitations such as large band gaps and photodecontamination.
AB - Since a few centuries ago, organochlorine compounds (OCs) become one of the threatened contaminants in the world. Due to the lipophilic and hydrophobic properties, OCs always discover in fat or lipid layers through bioaccumulation and biomagnification. The OCs are able to retain in soil, sediment and water for long time as it is volatile, OCs will evaporate from soil and condense in water easily and frequently, which pollute the shelter of aquatic life and it affects the function of organs and damage system in human body. Photocatalysis that employs the usage of semiconductor nanophotocatalyst and solar energy can be the possible alternative for current conventional water remediation technologies. With the benefits of utilizing renewable energy, no production of harmful by-products and easy operation, degradation of organic pollutants in rural water bodies can be established. Besides, nanophotocatalyst that is synthesized with nanotechnology outnumbered conventional catalyst with larger surface area to volume ratio, thus higher photocatalytic activity is observed. In contrast, disadvantages particularly no residual effect in water distribution network, requirement of post-treatment and easily affected by various factors accompanied with photocatalysis method cannot be ignored. These various factors constrained the photocatalytic efficiency via nanocatalysts which causes the full capacity of solar photocatalysis has yet to be put into practice. Therefore, further modifications and research are still required in nanophotocatalysts’ synthesis to overcome limitations such as large band gaps and photodecontamination.
KW - Nanophotocatalyst
KW - Organochlorine compounds
KW - Photocatalysis
KW - Photodecontamination
KW - Pollutant remediation
KW - Semiconductor
UR - http://www.scopus.com/inward/record.url?scp=85096379866&partnerID=8YFLogxK
U2 - 10.1016/j.chemosphere.2020.128873
DO - 10.1016/j.chemosphere.2020.128873
M3 - Review article
C2 - 33220978
AN - SCOPUS:85096379866
SN - 0045-6535
VL - 268
JO - Chemosphere
JF - Chemosphere
M1 - 128873
ER -
