来自各种前体的富含氧气的g-C3N4的环保合成和表征,用于有效的有机染料去污染
1Department of Environmental Engineering, Faculty of Engineering, Nahdlatul Ulama University of Sidoarjo, Sidoarjo, Indonesia.
Turkish journal of chemistry
|May 14, 2025
概括
用氧气合的石墨碳化物 (O-合g-C3N4) 在废水中有效降解中性红色染料. 这种新的光催化剂为工业染料去除提供了一个环保的解决方案,超越了传统的方法.
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 光催化作用的光催化
背景情况:
- 工业废水含有持久性,不可生物降解的染料,如中性红色,造成环境风险.
- 由于污染物的化学稳定性,传统的染料去除技术往往是低效的.
- 中性红色染料阻碍水生光合作用,并表现出潜在的毒性.
研究的目的:
- 合成和评估氧化碳化物 (O-化g-C3N4) 作为中性红色染料降解的光催化剂.
- 在可见光下研究O-化g-C3N4的吸附和光催化特性.
- 用新材料评估染料去除的效率和机制.
主要方法:
- 通过尿素,二胺和酸的化合成的O-化g-C3N4.
- 使用XRD,FT-IR,UV-Vis光谱和SEM进行材料表征.
- 在可见光下在定制光反应器中进行的光催化降解实验.
主要成果:
- 与纯的g-C3N4 (51%) 相比,O-dopedg-C3N4显示显著提高光催化效率 (60分钟内降解86%)
- 吸附动力学遵循伪二次模型,异温体最适合兰迈尔模型,表明单层吸附,容量为9.643毫克g-1.1.
- 减少了电子孔对重组和协同吸附-光催化作用,有助于通过活性氧物种有效降解染料.
结论:
- O-doped g-C3N4是一种高效和可持续的光催化剂,用于从废水中去除中性红色染料.
- 该材料的性能归因于增强的电荷分离和联合吸附-光催化机制.
- 这项研究提出了一种有希望的环保方法,用于处理染料污染的工业废水.
相关概念视频
Oxidation and Reduction of Organic Molecules
6.1K
Energy production within a cell involves many coordinated chemical pathways. Most of these pathways are combinations of oxidation and reduction reactions, which occur at the same time. An oxidation reaction strips an electron from an atom in a compound, and the addition of this electron to another compound is a reduction reaction. Because oxidation and reduction usually occur together, these pairs of reactions are called redox reactions.
The removal of an electron from a molecule, results in a...
The removal of an electron from a molecule, results in a...
6.1K
Oxymercuration-Reduction of Alkenes
7.4K
Oxymercuration–reduction of alkenes is one of the major reactions converting alkenes to alcohols. It involves the hydration of alkenes with mercuric acetate in a mixture of tetrahydrofuran and water, forming an organomercury adduct. This is followed by a demercuration step in which the adduct is reduced to an alcohol using sodium borohydride.
7.4K
Oxidative Cleavage of Alkenes: Ozonolysis
9.8K
In ozonolysis, ozone is used to cleave a carbon–carbon double bond to form aldehydes and ketones, or carboxylic acids, depending on the work-up.
Ozone is a symmetrical bent molecule stabilized by a resonance structure.
Ozone is a symmetrical bent molecule stabilized by a resonance structure.
9.8K
Catalysis
26.4K
The presence of a catalyst affects the rate of a chemical reaction. A catalyst is a substance that can increase the reaction rate without being consumed during the process. A basic comprehension of a catalysts’ role during chemical reactions can be understood from the concept of reaction mechanisms and energy diagrams.
26.4K
Oxidation of Alkenes: Syn Dihydroxylation with Osmium Tetraoxide
9.7K
Alkenes are converted to 1,2-diols or glycols through a process called dihydroxylation. It involves the addition of two hydroxyl groups across the double bond with two different stereochemical approaches, namely anti and syn. Dihydroxylation using osmium tetroxide progresses with syn stereochemistry.
9.7K
Phase I Reactions: Oxidation of Carbon-Heteroatom and Miscellaneous Systems
50
Oxidative reactions are pivotal in metabolizing numerous compounds, including pharmaceutical drugs. These reactions often occur in carbon-heteroatom systems, such as carbon-nitrogen, carbon-sulfur, and carbon-oxygen.
In carbon-nitrogen systems, aliphatic and aromatic amines can undergo oxidative reactions. Secondary and tertiary amines, like those found in tricyclic antidepressants, can undergo N-dealkylation, a process that involves the oxidation of the alkyl group. In addition, oxidative...
In carbon-nitrogen systems, aliphatic and aromatic amines can undergo oxidative reactions. Secondary and tertiary amines, like those found in tricyclic antidepressants, can undergo N-dealkylation, a process that involves the oxidation of the alkyl group. In addition, oxidative...
50


