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论文 太阳能电池板表面自清洁膜研究

  • 简介:论文-太阳能电池板表面自清洁膜研究,21页,10791字,摘 要,许多研究表明二氧化钛薄膜具有光诱导亲水性和光催化性等优点,应用于净化空气、照明灯具、涂料等领域,具有广阔的应用市场。用作太阳能电池板自清洁膜成为了目前人们的研究热
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适用专业:太阳能电池板
适用年级:大学
论文编号:194619

论文简介:

论文-太阳能电池板表面自清洁膜研究,21页,10791字

摘 要

许多研究表明二氧化钛薄膜具有光诱导亲水性和光催化性等优点,应用于净化空气、照明灯具、涂料等领域,具有广阔的应用市场。用作太阳能电池板自清洁膜成为了目前人们的研究热点,但是国内技术相对落后。本文针对这种现状,以及国内现行工业化生产自洁玻璃成本高的弊端,本文通过对TiO2的光催化活性原理和亲水性原理及其二者的分析,对溶胶、凝胶技术的性质工艺及其应用性质的认识,提出以二乙醇胺代替市面上常用的乙酰丙酮作为实验的螯合剂,利用溶胶.凝胶法制备二氧化钛薄膜,降低了制备成本。

光催化性能分析结果表明:溶胶样品在太阳光照射下比在紫外光照射下的降解效果好,而粉末样品在紫外光照射下比在太阳光照射下降解效果好;在相同条件下,掺铁的Ti02溶胶和粉末在两种光源照射下均比纯Ti02溶胶和粉末的降解效果好,当铁掺杂达到0.03%时,降解率达到最高。组织结构分析结果表明:纯Ti02粉末在415.7℃从无定型状态转变为锐钛矿型,470℃时Ti02逐渐由锐钛矿型转变为金红石型,铁的掺杂对锐钛矿型具有稳定作用,阻碍Ti02由锐钛矿型向金红石型的转变。Ti02粉末热处理温度分别为200℃、500℃、700l℃时,所获得的晶型分别为非晶态、锐钛矿型、金红石型;500℃热处理后,铁的掺入并没有形成新相,晶粒大小在10rim"-"14nm之间。当掺铁的量达到0.03%时,纳米颗粒的分散性最好。

关键词:溶胶一凝胶法;自洁玻璃;Ti02薄膜;光催化性;光诱导亲水性


Abstract

Many studies show that the film has photoinduced hydrophilic tio2 photocatalysis sex etc, and applied to purify the air, lighting and coating etc, has wide application market. Used for solar panels since clean membrane became at present people research hot spots, but domestic technical relatively backward. This paper based on the present situation, as well as the domestic existing industrialized production from clean glass high cost, this article through to the drawbacks of the photocatalytic activity of TiO2 principle and hydrophilic principle and both of the analysis of the nature of sol, gel technology process and application of the understanding of the nature, this paper put forward two diethanolamine instead of on market commonly used acetyl acetone as experiment of chelating agent, using sol-gel preparation. Gel legal TiO2 thin film, reduced the preparation cost.

Photocatalytic performance analysis results show that: making sol-gel samples under direct sunlight than in the degradation of under uv light, good effect, and powder sample in under uv light than in the light of the sun drop solution effect is good, Under the same conditions, mixing with iron Ti02 sol and powder in two kinds of illuminant irradiation in Ti02 sol than pure and powder degradation effect is good, when iron doped reach 0.03%, degradation rate was the highest. Organizational structure analysis results indicate: pure Ti02 powder in 415.7 ℃ from no finalize the state transition for sharp over-mining type, when ℃ gradually from the Ti02 470 g.osteoporosis over-mining type into rutile type, iron doped to sharp over-mining type has stabilized, obstruct Ti02 by sharp over-mining type to rutile type transformation. Ti02 powder heat treatment temperature ℃ 200 to 500 respectively ℃, 700l ℃, obtained respectively crystal amorphous, sharp over-mining type, rutile type, 500 ℃ after heat-treatment, iron mixing and forming no new phase, grain size in 10rim "-" 14nm between. When mixed iron quantity achieved 0.03%, nanoparticles of dispersion is best.

Keywords:Sol-gel method;Self-cleaning glass;Titanium thin film;Photocatal activity;Hydrophilieity


目 录

第一章 绪 论 ……………1

1.1 选题的目的和意 …1

1.2 太阳能电池板二氧化钛自清洁膜的研究现状 1

1.2.1二氧化钛自清洁玻璃简介…1

1.2.2 二氧化钛薄膜的光催化活性原理…………1

1.2.3二氧化钛薄膜的亲水性原理2

1.2.4光催化活性与亲水性的关系2

1.2.5二氧化钛薄膜的制备方法…3

1.3 课题的提出…………4

1.4 小结…4

第二章 溶胶—凝胶技术 …6

2.1溶胶、凝胶的定义…6

2.2溶胶的基本性质……6

2.2.1动力性质……6

2.2.2光学特性一丁达尔效应…7

2.3 溶胶、凝胶技术的发展概述 …8

第三章 1 溶胶.凝胶法的一般工艺 …10

3.1溶胶的制备艺 …11

3.1.1聚合法 ………11

3.1.2颗粒法 ………11

3.2凝胶化过程 ………11

3.3陈化过程 …………11

3.4凝胶的干燥 ………11

3.5干凝胶的热处理 …11

第四章 溶胶.凝胶法的特点………13

4.1溶胶.凝胶法的优点13

4.2溶胶.凝胶法的缺点…13

结 论 ……14

参考文献 …16


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