Synthesis And Photocatalytic Performance Of Inorganic-organic Lead-copper Halide

Inorganic-organic metal halides are novel halide materials,which are widely used in optoelectronic materials due to their high quality and low price,adjustable structure and adjustable band gap,such as photosensitive devices,luminescent materials,photocatalytic degradation and so on.Because of its wide structure diversity and application potential,it is of great significance to study the synthesis and application of organo-inorganic metal halide materials.The article is divided into six parts.The contents are as follows:the first part,this paper describes the research background of preparing inorganic-organic metal halides,basic preparation methods,structure types,photocatalytic properties and the conception of this paper.The second part,This paper mainly introduces the test methods and experimental steps needed in this paper.The third part,in this paper,two copper halide compounds,[?Me?2-2,2-bipy]Cu3I5and[?Me?2-bipy)]₂Cu₇Br₉I₂,were prepared as organic cations by solvothermal method.and the photocatalytic properties of compound[?Me?₂-2,2-bipy]Cu₃I₅ were also characterized using rhodamine b as organic degradation.the test results proved the excellent photocatalytic activity of[?Me?2-2,2-bipy]Cu3I5.The fourth part,this chapter synthesizes four new organic-inorganic hybrid lead iodides using 2,2-bipyridine as organic cations by solvothermal method.[Fe?2,2-bipy?₃]₂Pb₈I₂₁,[Co?2,2-bipy?₃]₂Pb₈I₂₁,[Ni?2,2-bipy?₃]₂Pb₈I₂₁ and[Mn?2,2-bipy?₃]₂Pb₈I₂₁.and the solid-state uv-vis spectroscopy analysis was performed.the four compounds degraded Rhodamine B.the photodegradation efficiency of Rhodamine B was found to be[Fe?2,2-bipy?₃]₂Pb₈I₂₁>[Co?2,2-bipy?₃]₂Pb₈I₂₁>[Ni?2,2-bipy?₃]₂Pb₈I₂₁>[Mn?2,2-bipy?₃]₂Pb₈I₂₁.Results shows that[Fe?2,2-bipy?₃]₂Pb₈I₂₁1 had the best photodegradation effect on Rhodamine B.The fifth part,in this chapter,a series of cuprous and lead-halide hybrid products were prepared by solvothermal method with organic cations2,4,6-tri?4-pyridine?-1,3,5-triazine?TPT?and 1,3,5-trihydroxymethylaminomethane?1,3-imidazolium?benzene?TIB?.in this chapter,H[?Me?₃-TPT]₆?Cu₂I₆?₃(Pb₆I₁₉)·?H₂O?₂,[?Me?₃-TPT]₂Cu₂Pb₃Br₁₄,and the solid-state uv-vis spectroscopy analysis was performed.[H₃TIB]₂Pb₅Br₁₆6 and H[?Me?₃-TIB]₂Pb₅I₁₇7 The catalytic properties of H[?Me?₃-TIB]₂Pb₅I₁₇7 were studied with methyl orange submethyl blue and Rhodamine B as organic dyes the experimental results show that H[?Me?₃-TIB]₂Pb₅I₁₇7 is a stable photocatalyst.The sixth part is the sixth chapter,this chapter mainly describes the innovation point and the future prospect of this paper.