Browsing Wong Yee Shian, Assoc. Prof. Ts. Dr. by Subject "Zinc oxide"

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    • Decolorization and mineralization of Batik wastewater through solar photocatalytic process 

      Wan Fadhilah, Khalik; Ho, Li Ngee; Ong, Soon-An; Wong, Yee Shian; Nik Athirah, Yusoff; Muhammad Ridwan, Fahmi (Penerbit Universiti Kebangsaan Malaysia, 2015-04-01)
      In this study, the photocatalytic degradation of batik wastewater in the presence of zinc oxide (ZnO) as photocatalyst was investigated. The effect of various operating parameters, such as pH of batik wastewater, catalyst ...

    • Degradation of phenol through solar-photocatalytic treatment by zinc oxide in aqueous solution 

      Nik Athirah, Yusoff; Ong, Soon-An; Ho, Li Ngee; Wong, Yee Shian; Wan Fadhilah, Khalik (Taylor and Francis Ltd., 2015-05-08)
      Phenol-containing wastewater is only allowed in a very small amount either in sewage or industrial effluent due to the hazardous effect towards the environment. The objective of this study was to investigate the photocatalytic ...

    • Photocatalytic activity of zinc oxide (ZnO) synthesized through different methods 

      Nik Athirah, Yusoff; Ho, Li Ngee; Ong, Soon-An; Wong, Yee Shian; Wan Fadhilah, Khalik (Taylor and Francis Ltd., 2016-06)
      Derivatives of phenol are considered as part of the persistent organic pollutants with endocrine effects persist in the environment and resist to bio-degradation which is difficult to be degraded. The objective of this ...