A review on heterogeneous sonocatalyst for treatment of organic pollutants in aqueous phase based on catalytic mechanism

Pengpeng Qiu, Beomguk Park, Jongbok Choi, Binota Thokchom, Aniruddha B. Pandit, Jeehyeong Khim

Research output: Contribution to journalReview articlepeer-review

30 Citations (Scopus)

Abstract

Heterogeneous sonocatalysis, as an emerging advanced oxidation process (AOP), has shown immense potential in water treatment and been widely demonstrated to remove persistent organic compounds in the past decade. The present article aims to provide a comprehensive review on the development of a heterogeneous catalyst for enhancing the ultrasonic degradation rate of organic pollutants from a viewpoint of sonocatalytic mechanism. The rational design and fundamentals for preparing sonocatalysts are presented in the context of facilitating the heterogeneous nucleation and photo-thermal-catalytic effects as well as considering the mechanical stability and separation capacity of the heterogeneous catalyst. In addition, some new trends, ongoing challenges and possible methods to overcome these challenges are also highlighted and proposed.

Original languageEnglish
Pages (from-to)29-49
Number of pages21
JournalUltrasonics Sonochemistry
Volume45
DOIs
Publication statusPublished - 2018 Jul 1

Keywords

  • Heterogeneous nucleation
  • Organic pollutant
  • Photo-thermal-catalytic effect
  • Sonocatalysis
  • Sonocatalytic mechanism

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Radiology Nuclear Medicine and imaging
  • Acoustics and Ultrasonics

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