A cadmium-imidazole coordination polymer (Cd-Im CP) was facilely synthesized in ethanol/aqueous solution at low temperature and was characterized using PXRD, FTIR, Raman, SEM/EDX and N₂-BET analyses. Structure solution, performed by Reflex module/Materials Studio validated the coordination as [Cd(HIm/Im/OH)]_n. Cd-Im CP was examined for its potential use to photocatalytically degrade the cationic dye methylene blue (MB) and the anionic dye methyl orange (MO) under properly selected UV light source (254 ​nm, 24 ​W) at different initial pH. Photocatalytic-degradation experiments revealed similar pH-degradation profile for both dyes where the highest degradation was recorded at nearly neutral pH of and rate constants were 0.0083 and 0.0047 ​min⁻¹ for MB and MO respectively. Degradation analyses elucidate that Cd-Im CP has a buffering effect, a character that strongly impacted the degradation mechanism. Due to limited adsorption of dyes by Cd-Im CP, the proposed mechanism of degradation comprises diffusion of O₂^•− radicals toward the bulk solution where degradation occurs, meanwhile for basic and acidic conditions dyes’ molecules diffuse toward Cd-Im CP surface where they experience collisional-interaction with O₂^•− nearby the Stern layer, and thereafter degradation follows known pathway.

镉-咪唑配位聚合物（Cd-Im CP）可以在乙醇/水溶液中在低温下轻松合成，并使用PXRD，FTIR，拉曼，SEM / EDX和N ₂ -BET分析对其进行表征。由Reflex模块/ Materials Studio执行的结构求解将协调性验证为[Cd（HIm / Im / OH）] _n。CD-林CP检查其潜在用途的光催化降解阳离子染料亚甲蓝（MB），并在不同的初始pH下适当地选择UV光源阴离子染料甲基橙（MO）（254纳米，24 W）。光催化降解实验显示两种染料的pH降解曲线相似，其中在接近中性pH时记录的降解最高，速率常数为0.0083和0.0047 min ^-1分别用于MB和MO。降解分析表明，Cd-Im CP具有缓冲作用，该特性强烈影响降解机理。由于Cd-Im CP对染料的吸附有限，因此提出的降解机理包括O ₂ ^•-自由基向着发生降解的本体溶液扩散，同时在碱性和酸性条件下，染料分子向Cd-Im CP表面扩散。它们在斯特恩层附近经历与O ₂ ^•的碰撞相互作用，然后按照已知的途径降解。