Layered double hydroxides decorated with Au-Pd nanoparticles to photodegradate Orange II from water.

Liji Sobhana (1) , Mohamed Sarakha (2) , Vanessa Prevot (2) , Pedro Fardima (1, 3)

1 Laboratory of Fiber and Cellulose Technology, Åbo Akademi University
2 ICCF - Institut de Chimie de Clermont-Ferrand
3 KU Leuven - Catholic University of Leuven = Katholieke Universiteit Leuven

MgZnAl-Cl layered double hydroxides were prepared by co-precipitation method and further used as support to immobilize gold-palladium (Au-Pd) bimetallic nanoparticles by colloidal sol immobilization method. These materials were characterized by XRD, FT-IR, N2 adsorption desorption, TGA to verify the structure and stability of the heterostructure. The pristine LDH and Au-Pd@LDH were investigated for an environmental purpose, where photocatalytic degradation of orange II (OII) dye was studied as model reaction. The performance of support and catalyst were determined by evaluating both degradation and adsorption phenomenon. Influence of parameters such as catalyst loading and Orange II concentration were evaluated. The current study holds importance in water treatment and similar environmental protection applications.

Mots clés: Layered double hydroxides; Sol-immobilization; Bimetallic nanoparticles; Supported metal catalyst; Photodegradation

Domaines: Chimie

Liji Sobhana, Mohamed Sarakha, Vanessa Prevot, Pedro Fardima. Layered double hydroxides decorated with Au-Pd nanoparticles to photodegradate Orange II from water.. Applied Clay Science, 2016, 134, pp.120-127. ⟨10.1016/j.clay.2016.06.019⟩. ⟨hal-01483952⟩