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One silver(I)/tetraphosphine coordination polymer showing good catalytic performance in the photodegradation of nitroaromatics in aqueous solution

Xin-Yi Wu^a,   Hai-Xiao Qi^a,   Jin-Jiao Ning^a,   Jian-Feng Wang^a,   Zhi-Gang Ren^a,*(任志刚)  and   Jian-Ping Lang^a,b,*(郎建平)  

^a College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People's Republic of China

^b State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, People's Republic of China

APPL CATAL B-ENVIRON 2015, 168-169, 98–104

Reaction of AgNO₃ with one tetraphosphine ligand, 1,4-N,N,N′,N′-tetra(diphenylphosphanylmethyl) benzene diamine (dpppda), gave rise to a Ag(I)/tetraphosphine coordination polymer [Ag₄(NO₃)₄(dpppda)]_n(1). Compound 1 has a one-dimensional (1D) chain structure in which the chair-like [Ag₄(NO₃)₄] cores are linked by the dpppda ligands using a Z-shaped μ-η²:η² side-by-side mode. Compound 1 exhibited good catalytic activity towards the photodegradation of nitrobenzene (NB), paranitrophenol (PNP) and 2,4-dinitrophenol (2,4-DNP) in aqueous solution under UV light irradiation. The kinetics and the mechanism of such catalytic photodegradation reactions were also investigated. The present work provided some new insight into the design and preparation of new coordination polymers as catalyst for high-performance photodegradation of toxic and persistent organic species existed in industrial wastewaters.

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//www.sciencedirect.com/science/article/pii/S092633731400798X