碱性嫩黄O的光电脱色工艺研究

倪赛迪; 林秋涵; 何碧珊; 陈晓达; 郭妙柃; 栗鹏辉; 林佳丽; 陈毅挺

doi:10.16495/j.1006-3757.2023.02.006

碱性嫩黄O的光电脱色工艺研究

doi: 10.16495/j.1006-3757.2023.02.006

闽江学院材料与化学工程学院，福建福州　350108

基金项目: 国家自然科学基金项目（22004053），福建省自然科学基金项目（2022J011114，2021J05203），福建省一流本科课程（2020，仪器分析），闽江学院校长基金（103952022130，103952022132）

详细信息

作者简介:
倪赛迪（2000−），男，大学本科，专业方向：应用化学，E-mail：2276925610@qq.com

通讯作者:
陈毅挺（1978−），男，教授，博士，从事化学传感器研究，E-mail：fjcyt@foxmail.com

中图分类号: O657. 3
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- 文章访问数: 61
- HTML全文浏览量: 18
- PDF下载量: 3
- 被引次数: 0
出版历程
- 收稿日期: 2023-04-07
- 录用日期: 2023-05-16
- 修回日期: 2023-05-16
- 刊出日期: 2023-06-30

Study on Photoelectric Decolorization of Auramine O

Materials and Chemical Engineering College of Minjiang University, Fuzhou 350108, China

Funds: National Natural Science Foundation of China (22004053), National Science Foundation of Fujian Province (2022J011114，2021J05203), First-Class Undergraduate Courses in Fujian Province (2020, Instrumental analysis), Transforming Scientific Research Achievements into Research Experiment Teaching Project of Minjiang Univers (103952022130, 103952022132)

摘要

摘要: 以掺杂氟的SnO₂透明导电玻璃（FTO导电玻璃）为阳极，通过单因素和响应面法优化了碱性嫩黄O的光电降解工艺. 探讨了TiO₂、NaCl质量浓度、环境酸度、降解电压与施加时间等因素对脱色率的影响，并利用响应面法优化了脱色条件. 结果表明：在TiO₂质量浓度为0.13 g/L、NaCl质量浓度为0.43 g/L、环境初始酸度为8.0，施加14.0 V的降解电压30 min后，碱性嫩黄O脱色率可达95.91%.
- 光电脱色 /
- 碱性嫩黄O /
- FTO
Abstract: The photoelectric degradation of Aauramine O was optimized by the single factor and response surface method using a fluorine-doped SnO₂ transparent conductive glass (FTO conductive glass) as the anode. The effects of mass concentration of TiO₂ and NaCl, acidity of environment, voltage of electrolysis and time applied on the decolorization rate were discussed, and the decolorization conditions were optimized using a response surface method. The results showed that the decolorization rate of Auramine O could reach 95.91% when the mass concentration of TiO₂ was 0.13 g/L, the mass concentration of NaCl was 0.43 g/L, the initial acidity of the environment was 8.0, and the voltage of electrolysis was 14.0 V for 30 min.
- photoelectric decolorization /
- Auramine O /
- FTO

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图 1 碱性嫩黄O的分子结构

Figure 1. Structure of Auramine O

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图 2 碱性嫩黄O的紫外吸收光谱

Figure 2. UV absorption spectrum of Auramine O

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图 3 TiO₂质量浓度对碱性嫩黄O脱色率的影响

Figure 3. Effect of mass concentration of TiO₂ on decolorization rate of Auramine O

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图 4 不同电解质对碱性嫩黄O脱色率的影响

（a）氯化钠，（b）硝酸钠，（c）硫酸钠

Figure 4. Effect of types of electrolytes on decolorization rate of Auramine O

(a) NaCl, (b) NaNO₃, (c) Na₂SO₄

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图 5 NaCl 质量浓度对碱性嫩黄O脱色率的影响

Figure 5. Effect of mass concentration of NaCl on decolorization rate of Auramine O

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图 6 pH对碱性嫩黄O脱色率的影响

Figure 6. Effect of pH on decolorization rate of Auramine O

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图 7 降解电压对碱性嫩黄O脱色率的影响

Figure 7. Effect of voltage of electrolysis on decolorization rate of Auramine O

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图 8 降解时间对碱性嫩黄O脱色率的影响

Figure 8. Effect of degradation time on decolorization rate of Auramine O

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图 9 交互项对脱色率影响的响应面图

Figure 9. Response surface diagrams of effects of interaction terms on removal rate

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图 10 不同降解方式下碱性嫩黄O的脱色率

（a）光电催化，（b）电化学降解，（c）光催化

Figure 10. Decolorization rates of Auramine O under different degradation methods

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表 1 Box-Benhnken 试验设计因素和水平

Table 1. Factors and levels of Box-Benhnken experiment design

编码水平	X₁/(g/L)	X₂/(g/L)	X₃/V
−1	0.05	0.2	9
0	0.10	0.5	12
1	0.15	0.8	15

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表 2 响应面分析方案及试验结果

Table 2. Design and results of response surface analysis

序号	[TiO₂]/(g/L)	[NaCl]/(g/L)	E/V	R/%
1	0.10	0.5	12	92.15
2	0.05	0.2	12	65.62
3	0.15	0.8	12	88.81
4	0.10	0.5	12	85.98
5	0.10	0.5	12	95.86
6	0.10	0.2	9	68.87
7	0.10	0.8	15	90.69
8	0.05	0.8	12	83.16
9	0.10	0.2	15	92.02
10	0.15	0.5	15	93.26
11	0.05	0.5	9	61.02
12	0.10	0.8	9	83.12
13	0.05	0.5	15	83.55
14	0.10	0.5	12	90.42
15	0.10	0.5	12	93.67
16	0.15	0.2	12	90.69
17	0.15	0.5	9	89.88

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表 3 响应面二次回归模型的方差分析

Table 3. Analysis of variance for response surface quadratic regression equation

来源	自由度	平方和	均方	F值	P值
模型	9	1 646.90	1 646.90	19.05	0.000 4**
[TiO₂]	1	600.14	600.14	62.47	<0.000 1**
[NaCl]	1	102.10	102.10	10.63	0.013 9*
E	1	400.87	400.87	41.37	0.000 3**
[TiO₂]×[NaCl]	1	94.28	94.28	9.81	0.016 5*
[TiO₂]×E	1	91.68	91.68	9.54	0.017 6*
[NaCl]×E	1	60.68	60.68	6.32	0.040 2*
[TiO₂]²	1	134.26	134.26	13.98	0.007 3**
[NaCl]²	1	64.02	64.02	6.66	0.036 4*
E²	1	68.78	68.78	7.16	0.031 7*
残差	7	67.24	9.61
失拟项	4	11.53	3.84	0.28	0.840 7
纯误差	4	55.71	13.93
总和	16	1 714.15
注：表示在0.05水平上显著，*表示在0.01水平上极显著

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