本文關(guān)鍵詞： BiOCl 羅丹明B 納米片 pH調(diào)節(jié)劑　出處：《分子催化》2016年02期 　論文類型：期刊論文

【摘要】：以水解法合成了BiOCl納米片,并考察了制備溶液的pH調(diào)節(jié)劑對(duì)BiOCl晶形、形貌、孔徑分布和比表面積、化學(xué)組成、光學(xué)性質(zhì)及催化性能的影響.采用X射線衍射譜(XRD)、掃描電子顯微鏡(SEM)、N_2吸附、X射線光電子能譜(XPS)和紫外-可見漫反射光譜(DRS)對(duì)所合成的BiOCl樣品進(jìn)行表征.表征和催化結(jié)果表明:pH調(diào)節(jié)劑為NaOH和Na_2CO_3的BiOCl樣品含有雜質(zhì),pH調(diào)節(jié)劑為NH_4OH的BiOCl為純四方晶型材料;3種pH調(diào)節(jié)劑合成出的BiOCl都為納米片,納米片粒子大小順序?yàn)镹a_2CO_3NH_4OHNaOH,孔徑大小順序?yàn)镹a_2CO_3NaOHNH_4OH;以NaOH、Na_2CO_3、NH_4OH為pH調(diào)節(jié)劑合成出的BiOCl的帶隙能分別為3.27、3.21、3.15 e V,表面元素均為B~(3+)、O~(2-)和Cl~-;可見光降解羅丹明B的順序?yàn)镹H_4OHNa_2CO_3NaOH.并且,我們闡述了pH調(diào)節(jié)劑對(duì)光催化降解RhB的影響機(jī)理.
[Abstract]:BiOCl nanoparticles were synthesized by hydrolysis method. The crystal shape, morphology, pore size distribution, specific surface area and chemical composition of BiOCl prepared by pH modifier were investigated. Effects of optical properties and catalytic properties. The synthesized BiOCl samples were characterized by X-ray diffraction spectroscopy (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS) and UV-Vis diffuse reflectance spectroscopy (DRS). The results showed that the samples of BiOCl with NaOH and Na_2CO_3 as NaOH and Na_2CO_3 had three kinds of pure tetragonal BiOCl, which consisted of NH_4OH and BiOCl, and all the BiOCl synthesized by these three pH regulators were nanomaterials. The size order of the nanoparticles is Na2CO3NH4OHNaOHNaOHand Na2CO3NaOHNH4OHH; the band gap energy of the BiOCl synthesized with Na2CO3NH4OH as pH regulator is 3.273.213.15e V; the surface elements are B2CO3NH4HNaOH-); the visible degradation order of Rhodamine B is NH4OHNa2CO3NaOH. and the order of degradation of Rhodamine B by visible light is NH4OHNa2CO3NaOH. and the order of BiOCl synthesized by Na2CO3NH4OH is 3.273.213.15e V, respectively. The effect of pH regulator on photocatalytic degradation of RhB was discussed.
【作者單位】： 遼寧石油化工大學(xué)化學(xué)化工與環(huán)境學(xué)部;
【基金】：工業(yè)生態(tài)與環(huán)境工程教育部重點(diǎn)實(shí)驗(yàn)室的資助(KLIEEE-13-03)~~
【分類號(hào)】：X788;O643.36

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