WO3 nanostructures produced from tungsten welding electrode scraps: Temperature influence on optical and morphological characteristics

材料科学 溶解 化学工程 单斜晶系 拉曼光谱 纳米棒 结晶 热处理 背景(考古学) 表征(材料科学) 纳米技术 晶体结构 复合材料 冶金 结晶学 化学 光学 古生物学 物理 工程类 生物
作者
João M. A. Leite,Luís Henrique da Silveira Lacerda,Gustavo Marciniuk,Rodolfo T. Ferreira,Josias do Rocio Vitor do Nascimento,Alan F.Y. Matsushita,Sérgio Ricardo de Lázaro,Éder Carlos Ferreira de Souza,Jarem Raul Garcia
出处
期刊:Materials Chemistry and Physics [Elsevier BV]
卷期号:319: 129267-129267
标识
DOI:10.1016/j.matchemphys.2024.129267
摘要

to produce WO3 nanostructures have become important due to the possibility of using this material in a wide range of technological applications. In this context, a hydrated WO3.2H2O structure was produced by the electrochemical dissolution of welding electrode scraps in an alkali aqueous solution, followed by acid precipitation. The thermal treatment of this precursor structure at 550, 700, 850, and 1000 °C was able to produce γ phase WO3 materials with a monoclinic crystalline structure at all the temperatures used, as demonstrated by XRD and RAMAN characterization. However, different treatment temperatures can yield materials with diverse morphologies and optoelectronic properties. For example, the material produced at 1000 °C presented an elongated nanorod shape, with dimensions, from the base, ranging between 50 and 500 nm, a length of about 4 μm, and the lowest Eg value. The spectroscopic characterization also demonstrated that above 700 °C, the thermal treatment could eliminate the crystallization water and create oxygen vacancies, mainly at 850 and 1000 °C; explaining the decrease in the Eg values with increased temperature. As proof of concept, photocatalytic degradation of the Reactive Black 5 dye demonstrated that the material produced at 1000 °C was able to discolor ca. 50% of the initial color. Broad DFT analyses were performed, carefully describing the surface properties and the influence of morphology on the material properties. Therefore, we demonstrated that a simple, fast and low-cost two-step process was successfully developed aiming at a noble reuse of residues of this important material.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
2秒前
2秒前
2秒前
科研通AI2S应助可可杨采纳,获得10
3秒前
3秒前
ZO发布了新的文献求助10
4秒前
5秒前
积极纲发布了新的文献求助10
5秒前
巫马尔槐完成签到,获得积分10
5秒前
Rourou发布了新的文献求助10
7秒前
陆钰婷发布了新的文献求助10
7秒前
沉默友菱发布了新的文献求助10
8秒前
8秒前
9秒前
愉快太清完成签到,获得积分10
9秒前
10秒前
spring2025发布了新的文献求助10
10秒前
10秒前
ZO完成签到,获得积分10
13秒前
上官若男应助ZWK采纳,获得10
14秒前
xxx发布了新的文献求助10
15秒前
15秒前
16秒前
大模型应助科研通管家采纳,获得10
16秒前
李健应助科研通管家采纳,获得10
16秒前
16秒前
大个应助科研通管家采纳,获得10
16秒前
大模型应助科研通管家采纳,获得10
17秒前
天天快乐应助科研通管家采纳,获得10
17秒前
SciGPT应助科研通管家采纳,获得10
17秒前
英姑应助科研通管家采纳,获得10
17秒前
bkagyin应助科研通管家采纳,获得10
17秒前
小二郎应助可可采纳,获得10
17秒前
彳亍1117应助科研通管家采纳,获得10
17秒前
彳亍1117应助科研通管家采纳,获得10
17秒前
搜集达人应助科研通管家采纳,获得10
17秒前
Ava应助科研通管家采纳,获得10
17秒前
17秒前
17秒前
17秒前
高分求助中
Ophthalmic Equipment Market by Devices(surgical: vitreorentinal,IOLs,OVDs,contact lens,RGP lens,backflush,diagnostic&monitoring:OCT,actorefractor,keratometer,tonometer,ophthalmoscpe,OVD), End User,Buying Criteria-Global Forecast to2029 2000
A new approach to the extrapolation of accelerated life test data 1000
Cognitive Neuroscience: The Biology of the Mind 1000
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
A Preliminary Study on Correlation Between Independent Components of Facial Thermal Images and Subjective Assessment of Chronic Stress 500
Technical Brochure TB 814: LPIT applications in HV gas insulated switchgear 500
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3962851
求助须知:如何正确求助?哪些是违规求助? 3508777
关于积分的说明 11143063
捐赠科研通 3241643
什么是DOI,文献DOI怎么找? 1791638
邀请新用户注册赠送积分活动 873002
科研通“疑难数据库(出版商)”最低求助积分说明 803577