ATP/g-C3N4-Cd1-xNixS复合光催化剂的制备及其性能研究

摘要：本文以凹凸棒土为载体，在充分发挥其独特层链状结构基础上，通过原位沉积法，在80℃下将g-C3N4薄层负载在凹土表面，随后将Cd0。5Ni0。5S粒子沉积在g-C3N4表面，制备了一系列不同质量分数的ATP/g-C3N4-Cd0。5Ni0。5S（质量分数w%=Cd0。5Ni0。5S：ATP/g-C3N4=15%、30%、35%、40%、45%、50%）复合二元硫化物光催化材料。采用XRD，BET，SEM，UV-vis，FTIR等分析手段对制得产品进行表征分析。研究表明，复合材料中g-C3N4很好的包覆在凹土表面，一方面基本保持了凹土原本结构，同时又增大了的g-C3N4比表面积,Cd0。5Ni0。5S粒子均匀的分散在g-C3N4表面。以可见光光催化甲基橙为探针反应，考察了不同质量分数复合材料对光催化性能的影响。结果表明：ATP/g-C3N4-Cd0。5Ni0。5S复合材料显示出优异的可见光光催化性能；光照2h后，不同质量分数复合材料的光催化性能以质量分数w=40%为最佳，甲基橙的降解率达到97。67%。91370

毕业论文关键词：凹凸棒土，Cd0。5Ni0。5S，g-C3N4，可见光光催化，甲基橙

Abstract: In this article, ATP/g-C3N4-Cd0。5Ni0。5S (w% = Cd0。5Ni0。5S /(ATP / g-C3N4) = 15% 35%, 40%, 45%, 50%) composites with different mass fraction were prepared using a simple in-situ deposition method at 80 ℃ by loading g-C3N4 thin-layer onto the surface of the ATP and then depositing the Cd0。5Ni0。5S particles onto ATP/g-C3N4。 In this system, ATP was employed as a

carrier, it’s unique stratified, and chain structure was exploited sufficiently。 The products were characterized by XRD, BET, SEM, UV-vis and FTIR。 The results show that g-C3N4 is well coated onto the surface of the ATP, meaning that the original structure of the ATP maintained and the specific surface area of the g-C3N4 increased。 In addition, the Cd0。5Ni0。5S particles are also uniformly dispersed onto ATP/ g-C3N4。 The photocatalytic activity of different mass fraction composites were investigated by using visible-light degradation of methyl orange (MO) as probe。 The results show that ATP/g-C3N4-Cd0。5Ni0。5S composites exhibit excellent visible light photocatalytic properties。 After illuminate 2 hours, the composite materials exhibit the best photocatalytic performance with the mass fraction of Cd0。5Ni0。5S was 40% and the degradation rate of methyl orange was 97。67%。

Key words:Attapulgite，Cd0。5Ni0。5S，g-C3N4，Visible light photocatalysis，Methyl orange

1 前言 1

2 实验部分 2

2。1 试剂和仪器 2

2。2 复合光催化剂的制备源G于J优L尔V论N文M网WwW.youeRw.com 原文+QQ75201`8766 方法 2

2。2。1 ATP悬浊液的制备 2

2。2。2 ATP/g-C3N4的制备 2

2。2。3 Cd0。5Ni0。5S的制备 2

2。2。4ATP/g-C3N4-Cd0。5Ni0。5S的制备 3

2。3 材料表征 3

2。4 材料光催化性能测定 3

3 结果与讨论 3

3。1 表征谱图分析 4

3。1。1 XRD谱图分析 ATP/g-C3N4-Cd1-xNixS复合光催化剂的制备及其性能研究:http://www.youerw.com/huaxue/lunwen_198825.html